refactor(helpers): minor code cleanup and documentation fixes

- Enable edge-to-edge display in `MainActivity` and handle window insets in `PlayerFragment`.
- Add a fade-out animation when hiding the loading overlay.
- Sync player state with the controller during setup and reset playing state in preferences on service destruction.
- Simplify splash screen drawable and update background color attributes in layout.
- Remove manual navigation bar color overrides.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,38 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/workflows/gradle-publish.yml

@@ -3,8 +3,10 @@ name: Build and publish APK
 on:
   workflow_dispatch:
   push:
-    tags:
+    branches: [ "main" ]
-      - 'b*'
+  pull_request:
+    branches: [ "main" ]
+    
 
 env:
   ANDROID_HOME: /usr/local/lib/android/sdk/
@@ -38,7 +40,7 @@ jobs:
         ## It is not necessary to check for cache hit as it
         ## will not download Android SDK again
         #if: steps.cache-android-sdk.outputs.cache-hit != 'true'
-        uses: android-actions/setup-android@v3
+        uses: android-actions/setup-android@v4
         with:
           packages: ''
 
@@ -67,25 +69,7 @@ jobs:
           mv app-release-aligned.apk app-release.apk
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: app-release
           path: app-release.apk
-
-  publish:
-    runs-on: ubuntu-latest
-    needs: build
-    permissions:
-      contents: write
-    steps:
-      - name: Download artifact
-        uses: actions/download-artifact@v7
-        with:
-          name: app-release
-          path: app-release.apk
-
-      - name: Create release
-        uses: ncipollo/release-action@v1
-        with:
-          artifacts: "app-release.apk"
-          draft: true

.gitignore

@@ -5,3 +5,5 @@
 /.idea
 /build
 /captures
+/gradle/gradle-daemon-jvm.properties
+/.kotlin

LICENSE.md

@@ -1,23 +1,678 @@
-The MIT License (MIT)
+GNU GENERAL PUBLIC LICENSE
+Version 3, 29 June 2007
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+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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+
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+software and other kinds of works.
 
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+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -1,19 +1,39 @@
+<p align="center">
+	<a href="https://github.com/michatec/Radio/releases"><img src="https://img.shields.io/github/v/release/michatec/Radio?style=flat-square&include_prereleases&label=version" /></a>
+	<a href="https://github.com/michatec/Radio/releases"><img src="https://img.shields.io/github/downloads/michatec/Radio/total.svg?style=flat-square" /></a>
+	<a href="https://github.com/michatec/Radio/issues"><img src="https://img.shields.io/github/issues-raw/michatec/Radio.svg?style=flat-square&label=issues" /></a>
+	<a href="https://github.com/michatec/Radio/graphs/contributors"><img src="https://img.shields.io/github/contributors/michatec/Radio?style=flat-square" /></a>
+</p>
 <div align="center">
 
 ### ℹ️ About Radio
 **Radio is an application with a minimalist approach to listening to radio over the Internet.** <br>
 **Radio only offers a very basic search option, and it imports audio streaming links when you tap them in a web browser.** <br>
+**Radio now also supports Android TV (Beta).** <br>
 **Pull request are welcome at any time.**<br>
 
-**Radio is free software. It is released under the [MIT open source license](https://opensource.org/licenses/MIT).**
+**Radio is free software. It is released under the [GPLv3 open source license](https://opensource.org/licenses/GPL-3.0).**
 </div>
 
 ----------------------------------------
 
+<details>
+<summary>❗Warning</summary>
+<br>
+<p>
+Google has announced that, starting in 2026/2027, all apps on certified Android devices will require the developer to submit personal identity details directly to Google.
+
+Since the developers of this app do not agree to this requirement, this app will no longer work on certified Android devices after that time.
+</p>
+<a href="https://github.com/woheller69/FreeDroidWarn">ℹ️ More Information</a>
+</details>
+
+----------------------------------------
+
 <details>
 <summary>⚙️ Install Radio</summary>
 <br>
-<a href="https://github.com/michatec/Radio/releases/latest"><img src="https://user-images.githubusercontent.com/15986930/229208526-e5a63be5-0d0b-48ab-a222-9f2f2faf0ee4.png" height="80px"></a>
+<a href="https://github.com/michatec/Radio/releases/latest"><img src="https://user-images.githubusercontent.com/15986930/229208526-e5a63be5-0d0b-48ab-a222-9f2f2faf0ee4.png" alt="Preview" height="80px"></a>
 </details>
 
 ----------------------------------------
@@ -57,10 +77,32 @@ You can help out the radio-browser.info community by [adding the missing station
 
 ----------------------------------------
 
+<details>
+<summary>📺 Android TV Controls</summary>
+<br>
+
+When **Edit Stations** is enabled:
+- Press **← (Left)** on the remote to open the detailed station editing area
+- Press **3** or **Back** to close the editing area
+
+**General TV** Controls:
+- Press **0** or **DEL** to remove the selected radio station
+- Press **1** or **SPACE** to make the selected radio station favourite
+- Press **2** or **PLUS** to reorder the selected radio station
+
+</details>
+
+----------------------------------------
+
 <details>
 <summary>📜️ Credit</summary>
 
-Base app Michatec & [TRANSISTOR](https://codeberg.org/y20k/transistor).
+- [Radio Browser](http://www.radio-browser.info/) for providing the radio station database
+- [AndroidX Leanback](https://developer.android.com/jetpack/androidx/releases/leanback) for providing the Android TV UI components
+
+- Michatec for developing the app and maintaining the project
+- All the contributors who have contributed to the project by submitting pull requests, reporting issues, or providing feedback
+
 </details>
 
 <div align="right">

app/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id 'com.android.application'
+    alias libs.plugins.android.application
     id 'kotlin-parcelize'
 }
 
@@ -19,8 +19,8 @@ android {
         applicationId 'com.michatec.radio'
         minSdk 28
         targetSdk 36
-        versionCode 141
+        versionCode 144
-        versionName '14.1'
+        versionName '14.4'
         resourceConfigurations += ['en', 'de', 'el', 'nl', 'pl', 'ru','uk', 'ja', 'da', 'fr']
     }
 
@@ -55,24 +55,27 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
     // Google Stuff //
-    implementation 'com.google.android.material:material:1.13.0'
+    implementation libs.material
-    implementation 'com.google.code.gson:gson:2.13.2'
+    implementation libs.gson
 
     // AndroidX Stuff //
-    implementation 'androidx.core:core-ktx:1.17.0'
+    implementation libs.core.ktx
-    implementation 'androidx.activity:activity-ktx:1.12.4'
+    implementation libs.activity.ktx
-    implementation 'androidx.palette:palette-ktx:1.0.0'
+    implementation libs.palette.ktx
-    implementation 'androidx.preference:preference-ktx:1.2.1'
+    implementation libs.preference.ktx
-    implementation 'androidx.media:media:1.7.1'
+    implementation libs.media
-    implementation 'androidx.media3:media3-exoplayer:1.9.2'
+    implementation libs.media3.exoplayer
-    implementation 'androidx.media3:media3-exoplayer-hls:1.9.2'
+    implementation libs.media3.exoplayer.hls
-    implementation 'androidx.media3:media3-session:1.9.2'
+    implementation libs.media3.session
-    implementation 'androidx.media3:media3-datasource-okhttp:1.9.2'
+    implementation libs.media3.datasource.okhttp
-    implementation 'androidx.navigation:navigation-fragment-ktx:2.9.7'
+    implementation libs.navigation.fragment.ktx
-    implementation 'androidx.navigation:navigation-ui-ktx:2.9.7'
+    implementation libs.navigation.ui.ktx
-    implementation 'androidx.work:work-runtime-ktx:2.11.1'
+    implementation libs.work.runtime.ktx
+    implementation libs.leanback
+
+    implementation libs.freedroidwarn
 	
     // Volley HTTP request //
-    implementation 'com.android.volley:volley:1.2.1'
+    implementation libs.volley
-    implementation 'androidx.compose.material3:material3:1.4.0'
+    implementation libs.material3
 }

app/src/main/AndroidManifest.xml

@@ -1,6 +1,13 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-feature
+        android:name="android.software.leanback"
+        android:required="false" />
+    <uses-feature
+        android:name="android.hardware.touchscreen"
+        android:required="false" />
+
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK" />
@@ -10,6 +17,7 @@
     <application
         android:name=".Radio"
         android:allowBackup="true"
+        android:banner="@mipmap/ic_launcher"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
         android:icon="@mipmap/ic_launcher"
@@ -21,7 +29,7 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
         android:usesCleartextTraffic="true"
-        tools:targetApi="tiramisu">
+        tools:targetApi="33">
 
         <!-- ANDROID AUTO SUPPORT -->
         <!--  https://developer.android.com/training/auto/audio/ -->
@@ -32,17 +40,19 @@
             android:name="com.google.android.gms.car.notification.SmallIcon"
             android:resource="@mipmap/ic_launcher" />
 
-        <!-- Main activity for radio station playback on phone -->
+        <!-- Main activity for radio station playback on phone and TV -->
         <activity
             android:name=".MainActivity"
             android:configChanges="orientation|screenSize"
             android:windowSoftInputMode="adjustPan"
+            android:theme="@style/SplashTheme"
             android:exported="true">
 
             <!-- react to main intents -->
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
+                <category android:name="android.intent.category.LEANBACK_LAUNCHER" />
             </intent-filter>
 
             <!-- react to be recognized as a music player -->
@@ -58,7 +68,8 @@
             </intent-filter>
 
             <!-- react to playlist-links based on file extension -->
-            <intent-filter>
+            <!-- This is intended as an App Link for specific extensions -->
+            <intent-filter android:autoVerify="true">
                 <action android:name="android.intent.action.VIEW" />
 
                 <category android:name="android.intent.category.BROWSABLE" />
@@ -66,14 +77,16 @@
 
                 <data android:scheme="http" />
                 <data android:scheme="https" />
-                <data android:host="*" />
+                <data android:host="*"
+                    tools:ignore="AppLinkUrlError" />
                 <data android:pathPattern=".*\\.m3u" />
                 <data android:pathPattern=".*\\.m3u8" />
                 <data android:pathPattern=".*\\.pls" />
             </intent-filter>
 
             <!-- react to playlist-links based on mimetype -->
-            <intent-filter>
+            <!-- Note: MIME types prevent strict App Link verification, but are kept as requested -->
+            <intent-filter android:autoVerify="false">
                 <action android:name="android.intent.action.VIEW" />
 
                 <category android:name="android.intent.category.BROWSABLE" />
@@ -81,7 +94,8 @@
 
                 <data android:scheme="http" />
                 <data android:scheme="https" />
-                <data android:host="*" />
+                <data android:host="*"
+                    tools:ignore="AppLinkUrlError" />
                 <data android:mimeType="audio/x-scpls" />
                 <data android:mimeType="audio/mpegurl" />
                 <data android:mimeType="audio/x-mpegurl" />

app/src/main/java/com/michatec/radio/Keys.kt

@@ -1,17 +1,3 @@
-/*
- * Keys.kt
- * Implements the keys used throughout the app
- * This object hosts all keys used to control Radio state
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio
 
 import java.util.*
@@ -60,7 +46,6 @@ object Keys {
 
     // preferences
     const val PREF_RADIO_BROWSER_API: String = "RADIO_BROWSER_API"
-    const val PREF_ONE_TIME_HOUSEKEEPING_NECESSARY: String = "ONE_TIME_HOUSEKEEPING_NECESSARY_VERSIONCODE_95" // increment to current app version code to trigger housekeeping that runs only once
     const val PREF_THEME_SELECTION: String = "THEME_SELECTION"
     const val PREF_LAST_UPDATE_COLLECTION: String = "LAST_UPDATE_COLLECTION"
     const val PREF_COLLECTION_SIZE: String = "COLLECTION_SIZE"
@@ -79,7 +64,6 @@ object Keys {
     // default const values
     const val DEFAULT_SIZE_OF_METADATA_HISTORY: Int = 25
     const val DEFAULT_MAX_LENGTH_OF_METADATA_ENTRY: Int = 127
-    const val DEFAULT_DOWNLOAD_OVER_MOBILE: Boolean = false
     const val ACTIVE_DOWNLOADS_EMPTY: String = "zero"
     const val DEFAULT_MAX_RECONNECTION_COUNT: Int = 30
     const val LARGE_BUFFER_SIZE_MULTIPLIER: Int = 8
@@ -100,6 +84,7 @@ object Keys {
     const val DIALOG_REMOVE_STATION: Int = 2
     const val DIALOG_UPDATE_STATION_IMAGES: Int = 4
     const val DIALOG_RESTORE_COLLECTION: Int = 5
+    const val DIALOG_THEME_SELECTION: Int = 6
 
     // dialog results
     const val DIALOG_EMPTY_PAYLOAD_STRING: String = ""
@@ -138,7 +123,7 @@ object Keys {
     const val FOLDER_AUDIO: String = "audio"
     const val FOLDER_IMAGES: String = "images"
     const val FOLDER_TEMP: String = "temp"
-    const val URLRADIO_LEGACY_FOLDER_COLLECTION: String = "Collection"
+    const val RADIO_LEGACY_FOLDER_COLLECTION: String = "Collection"
 
     // file names and extensions
     const val COLLECTION_FILE: String = "collection.json"
@@ -150,9 +135,6 @@ object Keys {
     const val RADIO_BROWSER_API_BASE: String = "all.api.radio-browser.info"
     const val RADIO_BROWSER_API_DEFAULT: String = "de1.api.radio-browser.info"
 
-    // locations
-    const val LOCATION_DEFAULT_STATION_IMAGE: String = "android.resource://com.michatec.radio/drawable/ic_default_station_image_24dp"
-
     // sizes (in dp)
     const val SIZE_STATION_IMAGE_CARD: Int = 72
     const val SIZE_STATION_IMAGE_MAXIMUM: Int = 640

app/src/main/java/com/michatec/radio/MainActivity.kt

@@ -1,23 +1,15 @@
-/*
- * MainActivity.kt
- * Implements the MainActivity class
- * MainActivity is the default activity that can host the player fragment and the settings fragment
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio
 
 import android.content.SharedPreferences
+import android.content.pm.PackageManager
 import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
+import android.view.View
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.Toolbar
+import androidx.core.view.isVisible
 import androidx.navigation.fragment.NavHostFragment
 import androidx.navigation.ui.AppBarConfiguration
 import androidx.navigation.ui.NavigationUI
@@ -25,7 +17,7 @@ import androidx.navigation.ui.navigateUp
 import com.michatec.radio.helpers.AppThemeHelper
 import com.michatec.radio.helpers.FileHelper
 import com.michatec.radio.helpers.PreferencesHelper
-
+import org.woheller69.freeDroidWarn.FreeDroidWarn
 
 /*
  * MainActivity class
@@ -38,8 +30,13 @@ class MainActivity : AppCompatActivity() {
 
     /* Overrides onCreate from AppCompatActivity */
     override fun onCreate(savedInstanceState: Bundle?) {
+        enableEdgeToEdge()
+        setTheme(R.style.AppTheme)
         super.onCreate(savedInstanceState)
         
+        // Free Android
+        FreeDroidWarn.showWarningOnUpgrade(this, BuildConfig.VERSION_CODE)
+
         // set up views
         setContentView(R.layout.activity_main)
 
@@ -55,14 +52,44 @@ class MainActivity : AppCompatActivity() {
         NavigationUI.setupWithNavController(toolbar, navController, appBarConfiguration)
         supportActionBar?.hide()
 
+        // TV-specific loading logic: Hide the overlay once the app is ready
+        if (packageManager.hasSystemFeature(PackageManager.FEATURE_LEANBACK)) {
+            Handler(Looper.getMainLooper()).postDelayed({
+                hideLoadingOverlay()
+            }, 1200)
+        } else {
+            findViewById<View>(R.id.loading_layout)?.visibility = View.GONE
+        }
+
         // register listener for changes in shared preferences
         PreferencesHelper.registerPreferenceChangeListener(sharedPreferenceChangeListener)
     }
 
+    /* Hides the loading/splash overlay */
+    private fun hideLoadingOverlay() {
+        findViewById<View>(R.id.loading_layout)?.let { overlay ->
+            if (overlay.isVisible) {
+                overlay.animate()
+                    .alpha(0f)
+                    .setDuration(500)
+                    .withEndAction { overlay.visibility = View.GONE }
+            }
+        }
+    }
+
+
+    /* Overrides onResume from AppCompatActivity */
+    override fun onResume() {
+        try {
+            super.onResume()
+        } catch (_: ClassCastException) {
+            // Do nothing
+        }
+    }
+
 
     /* Overrides onSupportNavigateUp from AppCompatActivity */
     override fun onSupportNavigateUp(): Boolean {
-        // Taken from: https://developer.android.com/guide/navigation/navigation-ui#action_bar
         val navHostFragment = supportFragmentManager.findFragmentById(R.id.main_host_container) as NavHostFragment
         val navController = navHostFragment.navController
         return navController.navigateUp(appBarConfiguration) || super.onSupportNavigateUp()

app/src/main/java/com/michatec/radio/PlayerFragment.kt

@@ -1,17 +1,3 @@
-/*
- * PlayerFragment.kt
- * Implements the PlayerFragment class
- * PlayerFragment is the fragment that hosts Radio's list of stations and a player sheet
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio
 
 import android.app.Activity
@@ -36,6 +22,9 @@ import androidx.annotation.OptIn
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.content.ContextCompat
 import androidx.core.net.toUri
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.core.view.updatePadding
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
 import androidx.media3.common.MediaItem
@@ -181,8 +170,11 @@ class PlayerFragment : Fragment(),
         // hide action bar
         (activity as AppCompatActivity).supportActionBar?.hide()
 
-        // set the same background color of the player sheet for the navigation bar
+        ViewCompat.setOnApplyWindowInsetsListener(layout.rootView) { v, insets ->
-        requireActivity().window.navigationBarColor = ContextCompat.getColor(requireActivity(), R.color.player_sheet_background)
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.updatePadding(bottom = systemBars.bottom)
+            insets
+        }
         // associate the ItemTouchHelper with the RecyclerView
         itemTouchHelper = ItemTouchHelper(ItemTouchHelperCallback())
         itemTouchHelper?.attachToRecyclerView(layout.recyclerView)
@@ -256,7 +248,6 @@ class PlayerFragment : Fragment(),
         // load player state
         playerState = PreferencesHelper.loadPlayerState()
         // recreate player ui
-//        setupPlaybackControls()
         updatePlayerViews()
         updateStationListState()
         togglePeriodicSleepTimerUpdateRequest()
@@ -264,8 +255,8 @@ class PlayerFragment : Fragment(),
         observeCollectionViewModel()
         // handle navigation arguments
         handleNavigationArguments()
-//        // handle start intent - if started via tap on rss link
+        // handle start intent - if started via tap on rss link
-//        handleStartIntent()
+        handleStartIntent()
         // start watching for changes in shared preferences
         PreferencesHelper.registerPreferenceChangeListener(this as SharedPreferences.OnSharedPreferenceChangeListener)
     }
@@ -419,6 +410,13 @@ class PlayerFragment : Fragment(),
     private fun setupController() {
         val controller: MediaController = this.controller ?: return
         controller.addListener(playerListener)
+
+        // Sync local playerState with actual controller state
+        if (playerState.isPlaying != controller.isPlaying) {
+            playerState.isPlaying = controller.isPlaying
+            updatePlayerViews()
+        }
+
         requestMetadataUpdate()
         // handle start intent
         handleStartIntent()
@@ -462,7 +460,7 @@ class PlayerFragment : Fragment(),
         swipeToMarkStarredItemTouchHelper.attachToRecyclerView(layout.recyclerView)
 
         // set up sleep timer start button
-        layout.sheetSleepTimerStartButtonView.setOnClickListener {
+        layout.sheetSleepTimerStartButtonView?.setOnClickListener {
             when (controller?.isPlaying) {
                 true -> {
                     val timePicker = MaterialTimePicker.Builder()
@@ -492,12 +490,28 @@ class PlayerFragment : Fragment(),
         }
 
         // set up sleep timer cancel button
-        layout.sheetSleepTimerCancelButtonView.setOnClickListener {
+        layout.sheetSleepTimerCancelButtonView?.setOnClickListener {
             playerState.sleepTimerRunning = false
             controller?.cancelSleepTimer()
             togglePeriodicSleepTimerUpdateRequest()
         }
 
+        // set up TV station navigation
+        layout.playerPrevButtonView?.setOnClickListener {
+            val currentPosition = CollectionHelper.getStationPosition(collection, playerState.stationUuid)
+            if (currentPosition > 0) {
+                val prevStation = collection.stations[currentPosition - 1]
+                onPlayButtonTapped(prevStation.uuid)
+            }
+        }
+        layout.playerNextButtonView?.setOnClickListener {
+            val currentPosition = CollectionHelper.getStationPosition(collection, playerState.stationUuid)
+            if (currentPosition < collection.stations.size - 1) {
+                val nextStation = collection.stations[currentPosition + 1]
+                onPlayButtonTapped(nextStation.uuid)
+            }
+        }
+
     }
 
     /* Sets up the player */
@@ -559,15 +573,27 @@ class PlayerFragment : Fragment(),
 
     /* Handles this activity's start intent */
     private fun handleStartIntent() {
-        if ((activity as Activity).intent.action != null) {
+        val intent = (activity as Activity).intent
-            when ((activity as Activity).intent.action) {
+        if (intent.action != null && intent.action?.isNotEmpty() == true) {
-                Keys.ACTION_SHOW_PLAYER -> handleShowPlayer()
+            var handled = false
-                Intent.ACTION_VIEW -> handleViewIntent()
+            when (intent.action) {
-                Keys.ACTION_START -> handleStartPlayer()
+                Keys.ACTION_SHOW_PLAYER -> {
+                    handleShowPlayer()
+                    handled = true
+                }
+                Intent.ACTION_VIEW -> {
+                    handleViewIntent()
+                    handled = true
+                }
+                Keys.ACTION_START -> {
+                    handled = handleStartPlayer()
                 }
             }
+            if (handled) {
                 // clear intent action to prevent double calls
-        (activity as Activity).intent.action = ""
+                intent.action = ""
+            }
+        }
     }
 
 
@@ -588,12 +614,12 @@ class PlayerFragment : Fragment(),
                 val scheme: String = intentUri.scheme ?: String()
                 // CASE: intent is a web link
                 if (scheme.startsWith("http")) {
-                    Log.i(TAG, "Transistor was started to handle a web link.")
+                    Log.i(TAG, "Radio was started to handle a web link.")
                     stationList.addAll(CollectionHelper.createStationsFromUrl(intentUri.toString()))
                 }
                 // CASE: intent is a local file
                 else if (scheme.startsWith("content")) {
-                    Log.i(TAG, "Transistor was started to handle a local audio playlist.")
+                    Log.i(TAG, "Radio was started to handle a local audio playlist.")
                     stationList.addAll(CollectionHelper.createStationListFromContentUri(activity as Context, intentUri))
                 }
                 withContext(Main) {
@@ -610,17 +636,30 @@ class PlayerFragment : Fragment(),
 
 
     /* Handles START_PLAYER_SERVICE request from App Shortcut */
-    private fun handleStartPlayer() {
+    private fun handleStartPlayer(): Boolean {
+        if (controller == null || collection.stations.isEmpty()) {
+            return false
+        }
         val intent: Intent = (activity as Activity).intent
         if (intent.hasExtra(Keys.EXTRA_START_LAST_PLAYED_STATION)) {
-            controller?.play(activity as Context, CollectionHelper.getStation(collection, playerState.stationUuid))
+            val station = CollectionHelper.getStation(collection, playerState.stationUuid)
+            if (station.isValid()) {
+                controller?.play(activity as Context, station)
+                return true
+            }
         } else if (intent.hasExtra(Keys.EXTRA_STATION_UUID)) {
             val uuid: String = intent.getStringExtra(Keys.EXTRA_STATION_UUID) ?: String()
-            controller?.play(activity as Context, CollectionHelper.getStation(collection, uuid))
+            val station = CollectionHelper.getStation(collection, uuid)
+            if (station.isValid()) {
+                controller?.play(activity as Context, station)
+                return true
+            }
         } else if (intent.hasExtra(Keys.EXTRA_STREAM_URI)) {
             val streamUri: String = intent.getStringExtra(Keys.EXTRA_STREAM_URI) ?: String()
             controller?.playStreamDirectly(streamUri)
+            return true
         }
+        return false
     }
 
 
@@ -636,16 +675,16 @@ class PlayerFragment : Fragment(),
         collectionViewModel.collectionLiveData.observe(this) {
             // update collection
             collection = it
-////            // updates current station in player views
+            // updates current station in player views
-////            playerState = PreferencesHelper.loadPlayerState()
+            playerState = PreferencesHelper.loadPlayerState()
-//            // get station
+            // get station
-//            val station: Station = CollectionHelper.getStation(collection, playerState.stationUuid)
+            val station: Station = CollectionHelper.getStation(collection, playerState.stationUuid)
-//            // update player views
+            // update player views
-//            layout.updatePlayerViews(activity as Context, station, playerState.isPlaying)
+            layout.updatePlayerViews(activity as Context, station, playerState.isPlaying)
-////            // handle start intent
+            // handle start intent
-////            handleStartIntent()
+            handleStartIntent()
-////            // handle navigation arguments
+            // handle navigation arguments
-////            handleNavigationArguments()
+            handleNavigationArguments()
         }
         collectionViewModel.collectionSizeLiveData.observe(this) {
             // size of collection changed
@@ -740,6 +779,7 @@ class PlayerFragment : Fragment(),
                 layout.showBufferingIndicator(buffering = false)
             } else {
                 // playback is paused or stopped
+                layout.updateSleepTimer(activity as Context, 0L)
                 // check if buffering (playback is not active but playWhenReady is true)
                 if (controller?.playWhenReady == true) {
                     // playback is buffering, show the buffering indicator

app/src/main/java/com/michatec/radio/PlayerService.kt

@@ -1,17 +1,3 @@
-/*
- * PlayerService.kt
- * Implements the PlayerService class
- * PlayerService is Radio's foreground service that plays radio station audio
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio
 
 import android.app.PendingIntent
@@ -95,7 +81,8 @@ class PlayerService : MediaLibraryService() {
 
     /* Overrides onDestroy from Service */
     override fun onDestroy() {
-        // player.removeAnalyticsListener(analyticsListener)
+        // Reset playing state in preferences
+        PreferencesHelper.saveIsPlaying(false)
         player.removeListener(playerListener)
         player.release()
         mediaLibrarySession.release()
@@ -210,12 +197,9 @@ class PlayerService : MediaLibraryService() {
     /* Cancels sleep timer */
     private fun cancelSleepTimer() {
         if (this::sleepTimer.isInitialized) {
-            if (manuallyCancelledSleepTimer) {
-                sleepTimerTimeRemaining = 0L
             sleepTimer.cancel()
         }
-            manuallyCancelledSleepTimer = false
+        sleepTimerTimeRemaining = 0L
-        }
         // store timer state
         PreferencesHelper.saveSleepTimerRunning(isRunning = false)
     }
@@ -258,11 +242,6 @@ class PlayerService : MediaLibraryService() {
                 async(Dispatchers.Default) { FileHelper.readCollectionSuspended(context) }
             // wait for result and update collection
             collection = deferred.await()
-//            // special case: trigger metadata view update for stations that have no metadata
-//            if (player.isPlaying && station.name == getCurrentMetadata()) {
-//                station = CollectionHelper.getStation(collection, station.uuid)
-//                updateMetadata(null)
-//            }
         }
     }
 
@@ -280,19 +259,8 @@ class PlayerService : MediaLibraryService() {
             val updatedMediaItems: List<MediaItem> =
                 mediaItems.map { mediaItem ->
                     CollectionHelper.getItem(this@PlayerService, collection, mediaItem.mediaId)
-//                    if (mediaItem.requestMetadata.searchQuery != null)
-//                        getMediaItemFromSearchQuery(mediaItem.requestMetadata.searchQuery!!)
-//                    else MediaItemTree.getItem(mediaItem.mediaId) ?: mediaItem
                 }
             return Futures.immediateFuture(updatedMediaItems)
-
-
-//            val updatedMediaItems = mediaItems.map { mediaItem ->
-//                mediaItem.buildUpon().apply {
-//                    setUri(mediaItem.requestMetadata.mediaUri)
-//                }.build()
-//            }
-//            return Futures.immediateFuture(updatedMediaItems)
         }
 
 
@@ -411,19 +379,19 @@ class PlayerService : MediaLibraryService() {
             customLayout: ImmutableList<CommandButton>,
             showPauseButton: Boolean
         ): ImmutableList<CommandButton> {
-            val seekToPreviousCommandButton = CommandButton.Builder()
+            val seekToPreviousCommandButton = CommandButton.Builder(CommandButton.ICON_UNDEFINED)
                 .setPlayerCommand(Player.COMMAND_SEEK_TO_PREVIOUS)
-                .setIconResId(R.drawable.ic_notification_skip_to_previous_36dp)
+                .setCustomIconResId(R.drawable.ic_notification_skip_to_previous_36dp)
                 .setEnabled(true)
                 .build()
-            val playCommandButton = CommandButton.Builder()
+            val playCommandButton = CommandButton.Builder(CommandButton.ICON_UNDEFINED)
                 .setPlayerCommand(Player.COMMAND_PLAY_PAUSE)
-                .setIconResId(if (player.isPlaying) R.drawable.ic_notification_stop_36dp else R.drawable.ic_notification_play_36dp)
+                .setCustomIconResId(if (player.isPlaying) R.drawable.ic_notification_stop_36dp else R.drawable.ic_notification_play_36dp)
                 .setEnabled(true)
                 .build()
-            val seekToNextCommandButton = CommandButton.Builder()
+            val seekToNextCommandButton = CommandButton.Builder(CommandButton.ICON_UNDEFINED)
                 .setPlayerCommand(Player.COMMAND_SEEK_TO_NEXT)
-                .setIconResId(R.drawable.ic_notification_skip_to_next_36dp)
+                .setCustomIconResId(R.drawable.ic_notification_skip_to_next_36dp)
                 .setEnabled(true)
                 .build()
             val commandButtons: MutableList<CommandButton> = mutableListOf(
@@ -457,7 +425,6 @@ class PlayerService : MediaLibraryService() {
                 currentMediaId,
                 isPlaying
             )
-            //updatePlayerState(station, playbackState)
 
             if (isPlaying) {
                 // playback is active
@@ -498,15 +465,10 @@ class PlayerService : MediaLibraryService() {
             if (!playWhenReady) {
                 when (reason) {
                     Player.PLAY_WHEN_READY_CHANGE_REASON_END_OF_MEDIA_ITEM -> {
-                        // playback reached end: stop / end playback
+                        stopSelf()
                     }
                     else -> {
-                        // playback has been paused by user or OS: update media session and save state
+                        stopSelf()
-                        // PLAY_WHEN_READY_CHANGE_REASON_USER_REQUEST or
-                        // PLAY_WHEN_READY_CHANGE_REASON_AUDIO_FOCUS_LOSS or
-                        // PLAY_WHEN_READY_CHANGE_REASON_AUDIO_BECOMING_NOISY or
-                        // PLAY_WHEN_READY_CHANGE_REASON_REMOTE
-                        // handlePlaybackChange(PlaybackStateCompat.STATE_PAUSED)
                     }
                 }
             }
@@ -539,10 +501,6 @@ class PlayerService : MediaLibraryService() {
             // try to reconnect every 5 seconds - up to 20 times
             if (loadErrorInfo.errorCount <= Keys.DEFAULT_MAX_RECONNECTION_COUNT && loadErrorInfo.exception is HttpDataSource.HttpDataSourceException) {
                 return Keys.RECONNECTION_WAIT_INTERVAL
-//            } else {
-//                CoroutineScope(Main).launch {
-//                    player.stop()
-//                }
             }
             return C.TIME_UNSET
         }
@@ -585,7 +543,6 @@ class PlayerService : MediaLibraryService() {
             intent.putExtra(AudioEffect.EXTRA_PACKAGE_NAME, packageName)
             intent.putExtra(AudioEffect.EXTRA_CONTENT_TYPE, AudioEffect.CONTENT_TYPE_MUSIC)
             sendBroadcast(intent)
-            // note: remember to broadcast AudioEffect.ACTION_CLOSE_AUDIO_EFFECT_CONTROL_SESSION, when not needed anymore
         }
     }
 }

app/src/main/java/com/michatec/radio/Radio.kt

@@ -1,17 +1,3 @@
-/*
- * Radio.kt
- * Implements the Radio class
- * Radio is the base Application class that sets up day and night theme
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio
 
 import android.app.Application
@@ -34,10 +20,4 @@ class Radio : Application() {
         AppThemeHelper.setTheme(PreferencesHelper.loadThemeSelection())
     }
 
-
-    /* Implements onTerminate */
-    override fun onTerminate() {
-        super.onTerminate()
-    }
-
 }

app/src/main/java/com/michatec/radio/SettingsFragment.kt

@@ -1,17 +1,3 @@
-/*
- * SettingsFragment.kt
- * Implements the SettingsFragment fragment
- * A SettingsFragment displays the user accessible settings of the app
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio
 
 import android.app.Activity
@@ -28,14 +14,13 @@ import androidx.activity.result.ActivityResult
 import androidx.activity.result.contract.ActivityResultContracts.StartActivityForResult
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.net.toUri
-import androidx.core.os.bundleOf
 import androidx.navigation.fragment.findNavController
 import androidx.preference.*
 import com.google.android.material.snackbar.Snackbar
 import com.michatec.radio.dialogs.ErrorDialog
+import com.michatec.radio.dialogs.ThemeSelectionDialog
 import com.michatec.radio.dialogs.YesNoDialog
 import com.michatec.radio.helpers.*
-import com.michatec.radio.helpers.AppThemeHelper.getColor
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.launch
@@ -46,7 +31,7 @@ import java.util.*
 /*
  * SettingsFragment class
  */
-class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogListener {
+class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogListener, ThemeSelectionDialog.ThemeSelectionDialogListener {
 
 
     /* Define log tag */
@@ -60,7 +45,6 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
         (activity as AppCompatActivity).supportActionBar?.show()
         (activity as AppCompatActivity).supportActionBar?.setDisplayHomeAsUpEnabled(true)
         (activity as AppCompatActivity).supportActionBar?.title = getString(R.string.fragment_settings_title)
-        requireActivity().window.navigationBarColor = getColor(requireContext(), android.R.attr.colorBackground)
     }
 
     /* Overrides onCreatePreferences from PreferenceFragmentCompat */
@@ -70,33 +54,17 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
         val screen = preferenceManager.createPreferenceScreen(context)
 
         // set up "App Theme" preference
-        val preferenceThemeSelection = ListPreference(activity as Context)
+        val preferenceThemeSelection = Preference(activity as Context)
         preferenceThemeSelection.title = getString(R.string.pref_theme_selection_title)
         preferenceThemeSelection.setIcon(R.drawable.ic_brush_24dp)
         preferenceThemeSelection.key = Keys.PREF_THEME_SELECTION
         preferenceThemeSelection.summary = "${getString(R.string.pref_theme_selection_summary)} ${
             AppThemeHelper.getCurrentTheme(activity as Context)
         }"
-        preferenceThemeSelection.entries = arrayOf(
+        preferenceThemeSelection.setOnPreferenceClickListener {
-            getString(R.string.pref_theme_selection_mode_device_default),
+            // show theme selection dialog
-            getString(R.string.pref_theme_selection_mode_light),
+            ThemeSelectionDialog(this).show(activity as Context)
-            getString(R.string.pref_theme_selection_mode_dark)
+            return@setOnPreferenceClickListener true
-        )
-        preferenceThemeSelection.entryValues = arrayOf(
-            Keys.STATE_THEME_FOLLOW_SYSTEM,
-            Keys.STATE_THEME_LIGHT_MODE,
-            Keys.STATE_THEME_DARK_MODE
-        )
-        preferenceThemeSelection.setDefaultValue(Keys.STATE_THEME_FOLLOW_SYSTEM)
-        preferenceThemeSelection.setOnPreferenceChangeListener { preference, newValue ->
-            if (preference is ListPreference) {
-                val index: Int = preference.entryValues.indexOf(newValue)
-                preferenceThemeSelection.summary =
-                    "${getString(R.string.pref_theme_selection_summary)} ${preference.entries[index]}"
-                return@setOnPreferenceChangeListener true
-            } else {
-                return@setOnPreferenceChangeListener false
-            }
         }
 
         // set up "Update Station Images" preference
@@ -115,17 +83,21 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
             return@setOnPreferenceClickListener true
         }
 
-
+        // set up "Update Stations" preference
-//        // set up "Update Stations" preference
+        val preferenceUpdateCollection = Preference(activity as Context)
-//        val preferenceUpdateCollection: Preference = Preference(activity as Context)
+        preferenceUpdateCollection.title = getString(R.string.pref_update_collection_title)
-//        preferenceUpdateCollection.title = getString(R.string.pref_update_collection_title)
+        preferenceUpdateCollection.setIcon(R.drawable.ic_refresh_24dp)
-//        preferenceUpdateCollection.setIcon(R.drawable.ic_refresh_24dp)
+        preferenceUpdateCollection.summary = getString(R.string.pref_update_collection_summary)
-//        preferenceUpdateCollection.summary = getString(R.string.pref_update_collection_summary)
+        preferenceUpdateCollection.setOnPreferenceClickListener {
-//        preferenceUpdateCollection.setOnPreferenceClickListener {
+            // show dialog
-//            // show dialog
+            YesNoDialog(this).show(
-//            YesNoDialog(this).show(context = activity as Context, type = Keys.DIALOG_UPDATE_COLLECTION, message = R.string.dialog_yes_no_message_update_collection, yesButton = R.string.dialog_yes_no_positive_button_update_collection)
+                context = activity as Context,
-//            return@setOnPreferenceClickListener true
+                type = Keys.DIALOG_UPDATE_COLLECTION,
-//        }
+                message = R.string.dialog_yes_no_message_update_collection,
+                yesButton = R.string.dialog_yes_no_positive_button_update_collection,
+            )
+            return@setOnPreferenceClickListener true
+        }
 
 
         // set up "M3U Export" preference
@@ -189,7 +161,8 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
         preferenceEnableEditingStreamUri.key = Keys.PREF_EDIT_STREAMS_URIS
         preferenceEnableEditingStreamUri.summaryOn = getString(R.string.pref_edit_station_stream_summary_enabled)
         preferenceEnableEditingStreamUri.summaryOff = getString(R.string.pref_edit_station_stream_summary_disabled)
-        preferenceEnableEditingStreamUri.setDefaultValue(PreferencesHelper.loadEditStreamUrisEnabled())
+        preferenceEnableEditingStreamUri.setDefaultValue(PreferencesHelper.loadEditStreamUrisEnabled(context))
+        preferenceEnableEditingStreamUri.isEnabled = PreferencesHelper.loadEditStreamUrisEnabled(context)
 
 
         // set up "Edit Stations" preference
@@ -199,7 +172,7 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
         preferenceEnableEditingGeneral.key = Keys.PREF_EDIT_STATIONS
         preferenceEnableEditingGeneral.summaryOn = getString(R.string.pref_edit_station_summary_enabled)
         preferenceEnableEditingGeneral.summaryOff = getString(R.string.pref_edit_station_summary_disabled)
-        preferenceEnableEditingGeneral.setDefaultValue(PreferencesHelper.loadEditStationsEnabled())
+        preferenceEnableEditingGeneral.setDefaultValue(PreferencesHelper.loadEditStationsEnabled(context))
         preferenceEnableEditingGeneral.setOnPreferenceChangeListener { _, newValue ->
             when (newValue) {
                 true -> {
@@ -213,7 +186,6 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
             return@setOnPreferenceChangeListener true
         }
 
-
         // set up "App Version" preference
         val preferenceAppVersion = Preference(context)
         preferenceAppVersion.title = getString(R.string.pref_app_version_title)
@@ -271,7 +243,7 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
         val preferenceCategoryMaintenance = PreferenceCategory(activity as Context)
         preferenceCategoryMaintenance.title = getString(R.string.pref_maintenance_title)
         preferenceCategoryMaintenance.contains(preferenceUpdateStationImages)
-//        preferenceCategoryMaintenance.contains(preferenceUpdateCollection)
+        preferenceCategoryMaintenance.contains(preferenceUpdateCollection)
 
         val preferenceCategoryImportExport = PreferenceCategory(activity as Context)
         preferenceCategoryImportExport.title = getString(R.string.pref_backup_import_export_title)
@@ -299,7 +271,7 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
         screen.addPreference(preferenceThemeSelection)
         screen.addPreference(preferenceCategoryMaintenance)
         screen.addPreference(preferenceUpdateStationImages)
-//        screen.addPreference(preferenceUpdateCollection)
+        screen.addPreference(preferenceUpdateCollection)
         screen.addPreference(preferenceCategoryImportExport)
         screen.addPreference(preferenceM3uExport)
         screen.addPreference(preferencePlsExport)
@@ -314,6 +286,26 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
         preferenceScreen = screen
     }
 
+    /* Overrides onThemeSelectionDialog from ThemeSelectionDialogListener */
+    override fun onThemeSelectionDialog(dialogResult: Boolean, selectedTheme: String) {
+        if (dialogResult) {
+            // update summary
+            val themes = arrayOf(
+                getString(R.string.pref_theme_selection_mode_device_default),
+                getString(R.string.pref_theme_selection_mode_light),
+                getString(R.string.pref_theme_selection_mode_dark)
+            )
+            val themeValues = arrayOf(
+                Keys.STATE_THEME_FOLLOW_SYSTEM,
+                Keys.STATE_THEME_LIGHT_MODE,
+                Keys.STATE_THEME_DARK_MODE
+            )
+            val index = themeValues.indexOf(selectedTheme)
+            val preferenceThemeSelection = findPreference<Preference>(Keys.PREF_THEME_SELECTION)
+            preferenceThemeSelection?.summary = "${getString(R.string.pref_theme_selection_summary)} ${themes[index]}"
+        }
+    }
+
 
     /* Overrides onYesNoDialog from YesNoDialogListener */
     override fun onYesNoDialog(
@@ -422,9 +414,9 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
             val sourceUri: Uri? = result.data?.data
             if (sourceUri != null) {
                 // open and import OPML in player fragment
-                val bundle: Bundle = bundleOf(
+                val bundle = Bundle().apply {
-                    Keys.ARG_RESTORE_COLLECTION to "$sourceUri"
+                    putString(Keys.ARG_RESTORE_COLLECTION, "$sourceUri")
-                )
+                }
                 this.findNavController().navigate(R.id.player_destination, bundle)
             }
         }
@@ -440,7 +432,9 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
                 Snackbar.LENGTH_LONG
             ).show()
             // update collection in player screen
-            val bundle: Bundle = bundleOf(Keys.ARG_UPDATE_COLLECTION to true)
+            val bundle = Bundle().apply {
+                putBoolean(Keys.ARG_UPDATE_COLLECTION, true)
+            }
             this.findNavController().navigate(R.id.player_destination, bundle)
         } else {
             ErrorDialog().show(
@@ -461,9 +455,9 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
                 Snackbar.LENGTH_LONG
             ).show()
             // update collection in player screen
-            val bundle: Bundle = bundleOf(
+            val bundle = Bundle().apply {
-                Keys.ARG_UPDATE_IMAGES to true
+                putBoolean(Keys.ARG_UPDATE_IMAGES, true)
-            )
+            }
             this.findNavController().navigate(R.id.player_destination, bundle)
         } else {
             ErrorDialog().show(
@@ -553,7 +547,6 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
             requestRestoreCollectionLauncher.launch(intent)
         } catch (exception: Exception) {
             Log.e(TAG, "Unable to open file picker for ZIP.\n$exception")
-            // Toast.makeText(activity as Context, R.string.toast_message_install_file_helper, Toast.LENGTH_LONG).show()
         }
     }
 }

app/src/main/java/com/michatec/radio/collection/CollectionAdapter.kt

@@ -1,24 +1,12 @@
-/*
- * CollectionAdapter.kt
- * Implements the CollectionAdapter class
- * A CollectionAdapter is a custom adapter providing station card views for a RecyclerView
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.collection
 
 import android.annotation.SuppressLint
 import android.content.Context
 import android.content.SharedPreferences
+import android.content.res.ColorStateList
 import android.text.Editable
 import android.text.TextWatcher
+import android.view.KeyEvent
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -27,8 +15,8 @@ import android.widget.ImageView
 import android.widget.ProgressBar
 import android.widget.TextView
 import androidx.appcompat.app.AppCompatActivity
-import androidx.cardview.widget.CardView
 import androidx.constraintlayout.widget.Group
+import androidx.core.content.ContextCompat
 import androidx.core.net.toUri
 import androidx.core.view.isGone
 import androidx.core.view.isVisible
@@ -38,6 +26,7 @@ import androidx.navigation.findNavController
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.RecyclerView
 import com.google.android.material.button.MaterialButton
+import com.google.android.material.card.MaterialCardView
 import com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
 import com.google.android.material.textfield.TextInputEditText
 import com.michatec.radio.Keys
@@ -62,11 +51,12 @@ class CollectionAdapter(
     /* Main class variables */
     private lateinit var collectionViewModel: CollectionViewModel
     private var collection: Collection = Collection()
-    private var editStationsEnabled: Boolean = PreferencesHelper.loadEditStationsEnabled()
+    private var editStationsEnabled: Boolean = PreferencesHelper.loadEditStationsEnabled(context)
-    private var editStationStreamsEnabled: Boolean = PreferencesHelper.loadEditStreamUrisEnabled()
+    private var editStationStreamsEnabled: Boolean = PreferencesHelper.loadEditStreamUrisEnabled(context)
     private var expandedStationUuid: String = PreferencesHelper.loadStationListStreamUuid()
     private var expandedStationPosition: Int = -1
     var isExpandedForEdit: Boolean = false
+    private var reorderStationUuid: String = ""
 
 
     /* Listener Interface */
@@ -197,6 +187,15 @@ class CollectionAdapter(
                 setPlaybackProgress(stationViewHolder, station)
                 setDownloadProgress(stationViewHolder, station)
 
+                // highlight if reordering
+                if (reorderStationUuid == station.uuid) {
+                    stationViewHolder.stationCardView.setStrokeColor(
+                        ColorStateList.valueOf(
+                            ContextCompat.getColor(context, R.color.cardview_reordering)
+                        )
+                    )
+                }
+
                 // show / hide edit views
                 when (expandedStationPosition) {
                     // show edit views
@@ -214,6 +213,8 @@ class CollectionAdapter(
                             stationViewHolder.stationNameEditView.imeOptions =
                                 EditorInfo.IME_ACTION_DONE
                         }
+                        // Allow internal focus
+                        stationViewHolder.stationCardView.descendantFocusability = ViewGroup.FOCUS_AFTER_DESCENDANTS
                     }
                     // hide edit views
                     else -> {
@@ -222,6 +223,8 @@ class CollectionAdapter(
                         stationViewHolder.stationStarredView.isVisible = station.starred
                         stationViewHolder.editViews.isGone = true
                         stationViewHolder.stationUriEditView.isGone = true
+                        // Block internal focus
+                        stationViewHolder.stationCardView.descendantFocusability = ViewGroup.FOCUS_BLOCK_DESCENDANTS
                     }
                 }
             }
@@ -319,6 +322,21 @@ class CollectionAdapter(
         }
     }
 
+    /* Shows / hides the reorder highlight for a station */
+    private fun toggleReorderMode(position: Int, stationUuid: String) {
+        if (reorderStationUuid == stationUuid) {
+            reorderStationUuid = ""
+            saveCollectionAfterDragDrop()
+        } else {
+            // collapse edit views if necessary
+            if (isExpandedForEdit) {
+                toggleEditViews(expandedStationPosition, expandedStationUuid)
+            }
+            reorderStationUuid = stationUuid
+        }
+        notifyItemChanged(position)
+    }
+
 
     /* Shows / hides the edit view for a station */
     @SuppressLint("NotifyDataSetChanged")
@@ -354,12 +372,16 @@ class CollectionAdapter(
         when (station.starred) {
             true -> {
                 if (station.imageColor != -1) {
-                    // stationViewHolder.stationCardView.setCardBackgroundColor(station.imageColor)
                     stationViewHolder.stationStarredView.setColorFilter(station.imageColor)
+                } else {
+                    stationViewHolder.stationStarredView.clearColorFilter()
                 }
                 stationViewHolder.stationStarredView.isVisible = true
             }
-            false -> stationViewHolder.stationStarredView.isGone = true
+            false -> {
+                stationViewHolder.stationStarredView.clearColorFilter()
+                stationViewHolder.stationStarredView.isGone = true
+            }
         }
     }
 
@@ -387,6 +409,8 @@ class CollectionAdapter(
             false -> stationViewHolder.playButtonView.visibility = View.INVISIBLE
         }
         stationViewHolder.stationCardView.setOnClickListener {
+            if (reorderStationUuid.isNotEmpty()) return@setOnClickListener
+            if (expandedStationPosition == stationViewHolder.bindingAdapterPosition) return@setOnClickListener
             collectionAdapterListener.onPlayButtonTapped(station.uuid)
         }
         stationViewHolder.playButtonView.setOnClickListener {
@@ -401,6 +425,68 @@ class CollectionAdapter(
         stationViewHolder.stationImageView.setOnClickListener {
             collectionAdapterListener.onPlayButtonTapped(station.uuid)
         }
+
+        // TV improvement: Allow reordering with DPAD
+        stationViewHolder.stationCardView.setOnKeyListener { _, keyCode, event ->
+            if (event.action == KeyEvent.ACTION_DOWN) {
+                // Reorder mode handling
+                if (reorderStationUuid == station.uuid) {
+                    when (keyCode) {
+                        KeyEvent.KEYCODE_DPAD_UP -> {
+                            val currentPos = stationViewHolder.bindingAdapterPosition
+                            if (currentPos > 0) {
+                                onItemMove(currentPos, currentPos - 1)
+                            }
+                            return@setOnKeyListener true
+                        }
+                        KeyEvent.KEYCODE_DPAD_DOWN -> {
+                            val currentPos = stationViewHolder.bindingAdapterPosition
+                            if (currentPos < collection.stations.size - 1) {
+                                onItemMove(currentPos, currentPos + 1)
+                            }
+                            return@setOnKeyListener true
+                        }
+                        KeyEvent.KEYCODE_NUMPAD_2, KeyEvent.KEYCODE_2, KeyEvent.KEYCODE_PLUS,
+                        KeyEvent.KEYCODE_BACK, KeyEvent.KEYCODE_ENTER, KeyEvent.KEYCODE_DPAD_CENTER -> {
+                            toggleReorderMode(stationViewHolder.bindingAdapterPosition, station.uuid)
+                            return@setOnKeyListener true
+                        }
+                        else -> return@setOnKeyListener true // Consume other keys in reorder mode
+                    }
+                }
+
+                when (keyCode) {
+                    KeyEvent.KEYCODE_DPAD_LEFT -> {
+                        if (editStationsEnabled && expandedStationPosition != stationViewHolder.bindingAdapterPosition) {
+                            val position: Int = stationViewHolder.bindingAdapterPosition
+                            toggleEditViews(position, station.uuid)
+                            return@setOnKeyListener true
+                        }
+                    }
+                    KeyEvent.KEYCODE_NUMPAD_3, KeyEvent.KEYCODE_3, KeyEvent.KEYCODE_BACK -> {
+                        if (expandedStationPosition == stationViewHolder.bindingAdapterPosition) {
+                            val position: Int = stationViewHolder.bindingAdapterPosition
+                            toggleEditViews(position, station.uuid)
+                            return@setOnKeyListener true
+                        }
+                    }
+                    KeyEvent.KEYCODE_NUMPAD_0, KeyEvent.KEYCODE_0, KeyEvent.KEYCODE_DEL -> {
+                        removeStation(context, stationViewHolder.bindingAdapterPosition)
+                        return@setOnKeyListener true
+                    }
+                    KeyEvent.KEYCODE_NUMPAD_1, KeyEvent.KEYCODE_1, KeyEvent.KEYCODE_SPACE -> {
+                        toggleStarredStation(context, stationViewHolder.bindingAdapterPosition)
+                        return@setOnKeyListener true
+                    }
+                    KeyEvent.KEYCODE_NUMPAD_2, KeyEvent.KEYCODE_2, KeyEvent.KEYCODE_PLUS -> {
+                        toggleReorderMode(stationViewHolder.bindingAdapterPosition, station.uuid)
+                        return@setOnKeyListener true
+                    }
+                }
+            }
+            false
+        }
+
         stationViewHolder.playButtonView.setOnLongClickListener {
             if (editStationsEnabled) {
                 val position: Int = stationViewHolder.bindingAdapterPosition
@@ -649,9 +735,9 @@ class CollectionAdapter(
         SharedPreferences.OnSharedPreferenceChangeListener { _, key ->
             when (key) {
                 Keys.PREF_EDIT_STATIONS -> editStationsEnabled =
-                    PreferencesHelper.loadEditStationsEnabled()
+                    PreferencesHelper.loadEditStationsEnabled(context)
                 Keys.PREF_EDIT_STREAMS_URIS -> editStationStreamsEnabled =
-                    PreferencesHelper.loadEditStreamUrisEnabled()
+                    PreferencesHelper.loadEditStreamUrisEnabled(context)
             }
         }
     /*
@@ -679,7 +765,7 @@ class CollectionAdapter(
      */
     private class StationViewHolder(stationCardLayout: View) :
         RecyclerView.ViewHolder(stationCardLayout) {
-        val stationCardView: CardView = stationCardLayout.findViewById(R.id.station_card)
+        val stationCardView: MaterialCardView = stationCardLayout.findViewById(R.id.station_card)
         val stationImageView: ImageView = stationCardLayout.findViewById(R.id.station_icon)
         val stationNameView: TextView = stationCardLayout.findViewById(R.id.station_name)
         val stationStarredView: ImageView = stationCardLayout.findViewById(R.id.starred_icon)

app/src/main/java/com/michatec/radio/collection/CollectionViewModel.kt

@@ -1,17 +1,3 @@
-/*
- * CollectionViewModel.kt
- * Implements the CollectionViewModel class
- * A CollectionViewModel stores the collection of stations as live data
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.collection
 
 import android.app.Application

app/src/main/java/com/michatec/radio/core/Collection.kt

@@ -1,16 +1,3 @@
-/*
- * Collection.kt
- * Implements the Collection class
- * A Collection object holds a list of radio stations
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
 package com.michatec.radio.core
 
 import android.os.Parcelable

app/src/main/java/com/michatec/radio/core/Station.kt

@@ -1,17 +1,3 @@
-/*
- * Station.kt
- * Implements the Station class
- * A Station object holds the base data of a radio
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.core
 
 import android.os.Parcelable

app/src/main/java/com/michatec/radio/dialogs/AddStationDialog.kt

@@ -1,22 +1,10 @@
-/*
- * AddStationDialog.kt
- * Implements the AddStationDialog class
- * A AddStationDialog shows a dialog with list of stations to import
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-23 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.dialogs
 
 import android.content.Context
 import android.view.LayoutInflater
+import android.widget.Button
 import androidx.appcompat.app.AlertDialog
+import androidx.core.view.isGone
 import androidx.recyclerview.widget.DefaultItemAnimator
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
@@ -45,6 +33,8 @@ class AddStationDialog (
     /* Main class variables */
     private lateinit var dialog: AlertDialog
     private lateinit var stationSearchResultList: RecyclerView
+    private var customPositiveButton: Button? = null
+    private var customNegativeButton: Button? = null
     private lateinit var searchResultAdapter: SearchResultAdapter
     private var station: Station = Station()
 
@@ -73,6 +63,10 @@ class AddStationDialog (
         // set up list of search results
         setupRecyclerView(context)
 
+        // find custom buttons (for TV layout)
+        customPositiveButton = view.findViewById(R.id.dialog_positive_button)
+        customNegativeButton = view.findViewById(R.id.dialog_negative_button)
+
         // add okay ("Add") button
         builder.setPositiveButton(R.string.dialog_find_station_button_add) { _, _ ->
             // listen for click on add button
@@ -88,6 +82,17 @@ class AddStationDialog (
             searchResultAdapter.stopPrePlayback()
         }
 
+        // set up custom buttons if they exist (TV layout)
+        customPositiveButton?.setOnClickListener {
+            listener.onAddStationDialog(station)
+            searchResultAdapter.stopPrePlayback()
+            dialog.dismiss()
+        }
+        customNegativeButton?.setOnClickListener {
+            searchResultAdapter.stopPrePlayback()
+            dialog.dismiss()
+        }
+
         // set dialog view
         builder.setView(view)
 
@@ -95,9 +100,17 @@ class AddStationDialog (
         dialog = builder.create()
         dialog.show()
 
-        // initially disable "Add" button
+        // handle button visibility and state
+        if (customPositiveButton != null) {
+            // hide default buttons if custom ones are used
+            dialog.getButton(AlertDialog.BUTTON_POSITIVE).isGone = true
+            dialog.getButton(AlertDialog.BUTTON_NEGATIVE).isGone = true
+            customPositiveButton?.isEnabled = false
+        } else {
+            // initially disable default "Add" button
             dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = false
         }
+    }
 
 
     /* Sets up list of results (RecyclerView) */
@@ -117,12 +130,14 @@ class AddStationDialog (
     /* Implement activateAddButton to enable the "Add" button */
     override fun activateAddButton() {
         dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = true
+        customPositiveButton?.isEnabled = true
     }
 
 
     /* Implement deactivateAddButton to disable the "Add" button */
     override fun deactivateAddButton() {
         dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = false
+        customPositiveButton?.isEnabled = false
     }
 
 

app/src/main/java/com/michatec/radio/dialogs/ErrorDialog.kt

@@ -1,17 +1,3 @@
-/*
- * ErrorDialog.kt
- * Implements the ErrorDialog class
- * An ErrorDialog shows an error dialog with details
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.dialogs
 
 import android.content.Context
@@ -19,6 +5,7 @@ import android.text.method.ScrollingMovementMethod
 import android.view.LayoutInflater
 import android.view.View
 import android.widget.TextView
+import android.widget.Toast
 import androidx.core.view.isGone
 import androidx.core.view.isVisible
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
@@ -81,8 +68,7 @@ class ErrorDialog {
 
         // add okay button
         builder.setPositiveButton(R.string.dialog_generic_button_okay) { _, _ ->
-            // listen for click on okay button
+            Toast.makeText(context, R.string.dialog_generic_button_okay, Toast.LENGTH_SHORT).show()
-            // do nothing
         }
 
         // display error dialog

app/src/main/java/com/michatec/radio/dialogs/FindStationDialog.kt

@@ -1,17 +1,3 @@
-/*
- * FindStationDialog.kt
- * Implements the FindStationDialog class
- * A FindStationDialog shows a dialog with search box and list of results
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.dialogs
 
 import android.annotation.SuppressLint
@@ -21,6 +7,7 @@ import android.os.Handler
 import android.os.Looper
 import android.view.LayoutInflater
 import android.view.inputmethod.InputMethodManager
+import android.widget.Button
 import android.widget.ProgressBar
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.widget.SearchView
@@ -63,6 +50,8 @@ class FindStationDialog (
     private lateinit var searchRequestProgressIndicator: ProgressBar
     private lateinit var noSearchResultsTextView: MaterialTextView
     private lateinit var stationSearchResultList: RecyclerView
+    private var customPositiveButton: Button? = null
+    private var customNegativeButton: Button? = null
     private lateinit var searchResultAdapter: SearchResultAdapter
     private lateinit var radioBrowserSearch: RadioBrowserSearch
     private lateinit var directInputCheck: DirectInputCheck
@@ -134,6 +123,10 @@ class FindStationDialog (
         // set up list of search results
         setupRecyclerView(context)
 
+        // find custom buttons (for TV layout)
+        customPositiveButton = view.findViewById(R.id.dialog_positive_button)
+        customNegativeButton = view.findViewById(R.id.dialog_negative_button)
+
         // add okay ("Add") button
         builder.setPositiveButton(R.string.dialog_find_station_button_add) { _, _ ->
             // listen for click on add button
@@ -152,6 +145,18 @@ class FindStationDialog (
             searchResultAdapter.stopPrePlayback()
         }
 
+        // set up custom buttons if they exist (TV layout)
+        customPositiveButton?.setOnClickListener {
+            listener.onFindStationDialog(station)
+            searchResultAdapter.stopPrePlayback()
+            dialog.dismiss()
+        }
+        customNegativeButton?.setOnClickListener {
+            radioBrowserSearch.stopSearchRequest()
+            searchResultAdapter.stopPrePlayback()
+            dialog.dismiss()
+        }
+
         // listen for input
         stationSearchBoxView.setOnQueryTextListener(object : SearchView.OnQueryTextListener {
             override fun onQueryTextChange(query: String): Boolean {
@@ -174,11 +179,19 @@ class FindStationDialog (
         dialog = builder.create()
         dialog.show()
 
-        // initially disable "Add" button
+        // handle button visibility and state
+        if (customPositiveButton != null) {
+            // hide default buttons if custom ones are used
+            dialog.getButton(AlertDialog.BUTTON_POSITIVE).isGone = true
+            dialog.getButton(AlertDialog.BUTTON_NEGATIVE).isGone = true
+            customPositiveButton?.isEnabled = false
+        } else {
+            // initially disable default "Add" button
             dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = false
             dialog.getButton(AlertDialog.BUTTON_POSITIVE).isAllCaps = true
             dialog.getButton(AlertDialog.BUTTON_NEGATIVE).isAllCaps = true
         }
+    }
 
 
     /* Sets up list of results (RecyclerView) */
@@ -242,12 +255,14 @@ class FindStationDialog (
     /* Makes the "Add" button clickable */
     override fun activateAddButton() {
         dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = true
+        customPositiveButton?.isEnabled = true
         searchRequestProgressIndicator.isGone = true
         noSearchResultsTextView.isGone = true
     }
 
     override fun deactivateAddButton() {
         dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = false
+        customPositiveButton?.isEnabled = false
         searchRequestProgressIndicator.isGone = true
         noSearchResultsTextView.isGone = true
     }
@@ -256,6 +271,7 @@ class FindStationDialog (
     /* Resets the dialog layout to default state */
     private fun resetLayout(clearAdapter: Boolean = false) {
         dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = false
+        customPositiveButton?.isEnabled = false
         searchRequestProgressIndicator.isGone = true
         noSearchResultsTextView.isGone = true
         searchResultAdapter.resetSelection(clearAdapter)
@@ -265,6 +281,7 @@ class FindStationDialog (
     /* Display the "No Results" error - hide other unneeded views */
     private fun showNoResultsError() {
         dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = false
+        customPositiveButton?.isEnabled = false
         searchRequestProgressIndicator.isGone = true
         noSearchResultsTextView.isVisible = true
     }
@@ -273,6 +290,7 @@ class FindStationDialog (
     /* Display the "No Results" error - hide other unneeded views */
     private fun showProgressIndicator() {
         dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = false
+        customPositiveButton?.isEnabled = false
         searchRequestProgressIndicator.isVisible = true
         noSearchResultsTextView.isGone = true
     }

app/src/main/java/com/michatec/radio/dialogs/ThemeSelectionDialog.kt

@@ -0,0 +1,89 @@
+package com.michatec.radio.dialogs
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.widget.RadioButton
+import androidx.appcompat.app.AlertDialog
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import com.michatec.radio.Keys
+import com.michatec.radio.R
+import com.michatec.radio.helpers.AppThemeHelper
+import com.michatec.radio.helpers.PreferencesHelper
+
+
+/*
+ * ThemeSelectionDialog class
+ */
+class ThemeSelectionDialog(private var themeSelectionDialogListener: ThemeSelectionDialogListener) {
+
+    /* Interface used to communicate back to activity */
+    interface ThemeSelectionDialogListener {
+        fun onThemeSelectionDialog(dialogResult: Boolean, selectedTheme: String) {
+        }
+    }
+
+
+    /* Main class variables */
+    private lateinit var dialog: AlertDialog
+
+
+    /* Construct and show dialog */
+    fun show(context: Context) {
+        // prepare dialog builder
+        val builder = MaterialAlertDialogBuilder(context)
+
+        // inflate custom layout
+        val inflater = LayoutInflater.from(context)
+        val view = inflater.inflate(R.layout.dialog_theme_selection, null)
+
+        // find radio buttons
+        val radioGroup = view.findViewById<android.widget.RadioGroup>(R.id.theme_radio_group)
+        val radioFollowSystem = view.findViewById<RadioButton>(R.id.radio_theme_follow_system)
+        val radioLight = view.findViewById<RadioButton>(R.id.radio_theme_light)
+        val radioDark = view.findViewById<RadioButton>(R.id.radio_theme_dark)
+
+        // set current selection
+        val currentTheme = AppThemeHelper.getCurrentTheme(context)
+        when (currentTheme) {
+            context.getString(R.string.pref_theme_selection_mode_device_default) -> {
+                radioFollowSystem.isChecked = true
+            }
+            context.getString(R.string.pref_theme_selection_mode_light) -> {
+                radioLight.isChecked = true
+            }
+            context.getString(R.string.pref_theme_selection_mode_dark) -> {
+                radioDark.isChecked = true
+            }
+        }
+
+        // set up radio group listener
+        radioGroup.setOnCheckedChangeListener { _, checkedId ->
+            val selectedTheme = when (checkedId) {
+                R.id.radio_theme_follow_system -> Keys.STATE_THEME_FOLLOW_SYSTEM
+                R.id.radio_theme_light -> Keys.STATE_THEME_LIGHT_MODE
+                R.id.radio_theme_dark -> Keys.STATE_THEME_DARK_MODE
+                else -> Keys.STATE_THEME_FOLLOW_SYSTEM
+            }
+            // save theme selection to preferences
+            PreferencesHelper.saveThemeSelection(selectedTheme)
+            // apply theme immediately
+            AppThemeHelper.setTheme(selectedTheme)
+            // notify listener
+            themeSelectionDialogListener.onThemeSelectionDialog(true, selectedTheme)
+            // dismiss dialog
+            dialog.dismiss()
+        }
+
+        // set custom view
+        builder.setView(view)
+
+        // handle outside-click as cancel
+        builder.setOnCancelListener {
+            themeSelectionDialogListener.onThemeSelectionDialog(false, Keys.STATE_THEME_FOLLOW_SYSTEM)
+        }
+
+        // display dialog
+        dialog = builder.create()
+        dialog.show()
+    }
+}

app/src/main/java/com/michatec/radio/dialogs/YesNoDialog.kt

@@ -1,17 +1,3 @@
-/*
- * YesNoDialog
- * Implements the YesNoDialog class
- * A YesNoDialog asks the user if he/she wants to do something or not
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.dialogs
 
 import android.content.Context

app/src/main/java/com/michatec/radio/extensions/ArrayListExt.kt

@@ -1,18 +1,3 @@
-/*
- * ArrayListExt.kt
- * Implements the ArrayListExt extension methods
- * Useful extension methods for ArrayLists
- * Source: https://raw.githubusercontent.com/googlesamples/android-UniversalMusicPlayer/master/common/src/main/java/com/example/android/uamp/media/extensions/MediaMetadataCompatExt.kt
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.extensions
 
 

app/src/main/java/com/michatec/radio/extensions/MediaControllerExt.kt

@@ -1,22 +1,7 @@
-/*
- * MediaControllerExt.kt
- * Implements the MediaControllerExt extension methods
- * Useful extension methods for MediaController
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.extensions
 
 import android.content.Context
 import android.os.Bundle
-import androidx.core.os.bundleOf
 import androidx.media3.session.MediaController
 import androidx.media3.session.SessionCommand
 import androidx.media3.session.SessionResult
@@ -71,8 +56,11 @@ fun MediaController.play(context: Context, station: Station) {
 
 /* Starts playback with of a stream url */
 fun MediaController.playStreamDirectly(streamUri: String) {
+    val bundle = Bundle().apply {
+        putString(Keys.KEY_STREAM_URI, streamUri)
+    }
     sendCustomCommand(
         SessionCommand(Keys.CMD_PLAY_STREAM, Bundle.EMPTY),
-        bundleOf(Pair(Keys.KEY_STREAM_URI, streamUri))
+        bundle
     )
 }

app/src/main/java/com/michatec/radio/helpers/AppThemeHelper.kt

@@ -1,25 +1,7 @@
-/*
- * AppThemeHelper.kt
- * Implements the AppThemeHelper object
- * A AppThemeHelper can set the different app themes: Light Mode, Dark Mode, Follow System
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.content.Context
-import android.content.res.TypedArray
 import android.util.Log
-import android.util.TypedValue
-import androidx.annotation.AttrRes
-import androidx.annotation.ColorInt
 import androidx.appcompat.app.AppCompatDelegate
 import com.michatec.radio.Keys
 import com.michatec.radio.R
@@ -33,8 +15,6 @@ object AppThemeHelper {
     /* Define log tag */
     private val TAG: String = AppThemeHelper::class.java.simpleName
 
-    private val sTypedValue = TypedValue()
-
     /* Sets app theme */
     fun setTheme(nightModeState: String) {
         when (nightModeState) {
@@ -76,14 +56,4 @@ object AppThemeHelper {
             else -> context.getString(R.string.pref_theme_selection_mode_device_default)
         }
     }
-
-
-    @ColorInt
-    fun getColor(context: Context, @AttrRes resource: Int): Int {
-        val a: TypedArray = context.obtainStyledAttributes(sTypedValue.data, intArrayOf(resource))
-        val color = a.getColor(0, 0)
-        a.recycle()
-        return color
-    }
-
 }

app/src/main/java/com/michatec/radio/helpers/AudioHelper.kt

@@ -1,17 +1,3 @@
-/*
- * AudioHelper.kt
- * Implements the AudioHelper object
- * A AudioHelper provides helper methods for handling audio files
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.util.Log

app/src/main/java/com/michatec/radio/helpers/BackupHelper.kt

@@ -1,17 +1,3 @@
-/*
- * BackupHelper.kt
- * Implements the BackupHelper object
- * A BackupHelper provides helper methods for backing up and restoring the radio station collection
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.content.ContentResolver
@@ -67,7 +53,7 @@ object BackupHelper {
         Snackbar.make(view, R.string.toastmessage_restored, Snackbar.LENGTH_LONG).show()
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
-            // bypass "ZipException" for Android 14 or above applications when zip file names contain ".." or start with "/"
+            // bypass "ZipException" for Android 14 or above applications when zip file names contain "." or start with "/"
             dalvik.system.ZipPathValidator.clearCallback()
         }
 

app/src/main/java/com/michatec/radio/helpers/CollectionHelper.kt

@@ -1,17 +1,3 @@
-/*
- * CollectionHelper.kt
- * Implements the CollectionHelper object
- * A CollectionHelper provides helper methods for the collection of stations
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.content.Context
@@ -313,7 +299,7 @@ object CollectionHelper {
     }
 
 
-    /* Returns the children stations under under root (simple media library structure: root > stations) */
+    /* Returns the children stations under root (simple media library structure: root > stations) */
     fun getChildren(context: Context, collection: Collection): List<MediaItem> {
         val mediaItems: MutableList<MediaItem> = mutableListOf()
         collection.stations.forEach { station ->
@@ -644,48 +630,6 @@ object CollectionHelper {
         LocalBroadcastManager.getInstance(context).sendBroadcast(collectionChangedIntent)
     }
 
-
-    //    /* Creates MediaMetadata for a single station - used in media session*/
-//    fun buildStationMediaMetadata(context: Context, station: Station, metadata: String): MediaMetadataCompat {
-//        return MediaMetadataCompat.Builder().apply {
-//            putString(MediaMetadataCompat.METADATA_KEY_ARTIST, station.name)
-//            putString(MediaMetadataCompat.METADATA_KEY_TITLE, metadata)
-//            putString(MediaMetadataCompat.METADATA_KEY_ALBUM, context.getString(R.string.app_name))
-//            putString(MediaMetadataCompat.METADATA_KEY_MEDIA_URI, station.getStreamUri())
-//            putBitmap(MediaMetadataCompat.METADATA_KEY_ALBUM_ART, ImageHelper.getScaledStationImage(context, station.image, Keys.SIZE_COVER_LOCK_SCREEN))
-//            //putString(MediaMetadataCompat.METADATA_KEY_ALBUM_ART_URI, station.image)
-//        }.build()
-//    }
-//
-//
-//    /* Creates MediaItem for a station - used by collection provider */
-//    fun buildStationMediaMetaItem(context: Context, station: Station): MediaBrowserCompat.MediaItem {
-//        val mediaDescriptionBuilder = MediaDescriptionCompat.Builder()
-//        mediaDescriptionBuilder.setMediaId(station.uuid)
-//        mediaDescriptionBuilder.setTitle(station.name)
-//        mediaDescriptionBuilder.setIconBitmap(ImageHelper.getScaledStationImage(context, station.image, Keys.SIZE_COVER_LOCK_SCREEN))
-//        // mediaDescriptionBuilder.setIconUri(station.image.toUri())
-//        return MediaBrowserCompat.MediaItem(mediaDescriptionBuilder.build(), MediaBrowserCompat.MediaItem.FLAG_PLAYABLE)
-//    }
-//
-//
-//    /* Creates description for a station - used in MediaSessionConnector */
-//    fun buildStationMediaDescription(context: Context, station: Station, metadata: String): MediaDescriptionCompat {
-//        val coverBitmap: Bitmap = ImageHelper.getScaledStationImage(context, station.image, Keys.SIZE_COVER_LOCK_SCREEN)
-//        val extras: Bundle = Bundle()
-//        extras.putParcelable(MediaMetadataCompat.METADATA_KEY_ALBUM_ART, coverBitmap)
-//        extras.putParcelable(MediaMetadataCompat.METADATA_KEY_DISPLAY_ICON, coverBitmap)
-//        return MediaDescriptionCompat.Builder().apply {
-//            setMediaId(station.uuid)
-//            setIconBitmap(coverBitmap)
-//            setIconUri(station.image.toUri())
-//            setTitle(metadata)
-//            setSubtitle(station.name)
-//            setExtras(extras)
-//        }.build()
-//    }
-
-
     /* Creates a MediaItem with MediaMetadata for a single radio station - used to prepare player */
     fun buildMediaItem(context: Context, station: Station): MediaItem {
         // put uri in RequestMetadata - credit: https://stackoverflow.com/a/70103460

app/src/main/java/com/michatec/radio/helpers/DateTimeHelper.kt

@@ -1,17 +1,3 @@
-/*
- * DateTimeHelper.kt
- * Implements the DateTimeHelper object
- * A DateTimeHelper provides helper methods for converting Date and Time objects
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.util.Log
@@ -31,14 +17,14 @@ object DateTimeHelper {
 
 
     /* Main class variables */
-    private const val pattern: String = "EEE, dd MMM yyyy HH:mm:ss Z"
+    private const val PATTERN: String = "EEE, dd MMM yyyy HH:mm:ss Z"
-    private val dateFormat: SimpleDateFormat = SimpleDateFormat(pattern, Locale.ENGLISH)
+    private val dateFormat: SimpleDateFormat = SimpleDateFormat(PATTERN, Locale.ENGLISH)
 
 
     /* Converts RFC 2822 string representation of a date to DATE */
     fun convertFromRfc2822(dateString: String): Date {
         val date: Date = try {
-            // parse date string using standard pattern
+            // parse date string using standard PATTERN
             dateFormat.parse((dateString)) ?: Keys.DEFAULT_DATE
         } catch (e: Exception) {
             Log.w(TAG, "Unable to parse. Trying an alternative Date format. $e")
@@ -51,7 +37,7 @@ object DateTimeHelper {
 
     /* Converts a DATE to its RFC 2822 string representation */
     fun convertToRfc2822(date: Date): String {
-        val dateFormat = SimpleDateFormat(pattern, Locale.ENGLISH)
+        val dateFormat = SimpleDateFormat(PATTERN, Locale.ENGLISH)
         return dateFormat.format(date)
     }
 

app/src/main/java/com/michatec/radio/helpers/DownloadFinishedReceiver.kt

@@ -1,17 +1,3 @@
-/*
- * DownloadFinishedReceiver.kt
- * Implements the DownloadFinishedReceiver class
- * A DownloadFinishedReceiver listens for finished downloads
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.app.DownloadManager

app/src/main/java/com/michatec/radio/helpers/DownloadHelper.kt

@@ -1,17 +1,3 @@
-/*
- * DownloadHelper.kt
- * Implements the DownloadHelper object
- * A DownloadHelper provides helper methods for downloading files
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.app.DownloadManager
@@ -384,7 +370,7 @@ object DownloadHelper {
     private fun determineAllowedNetworkTypes(type: Int, ignoreWifiRestriction: Boolean): Int {
         var allowedNetworkTypes: Int =
             (DownloadManager.Request.NETWORK_WIFI or DownloadManager.Request.NETWORK_MOBILE)
-        // restrict download of audio files to WiFi if necessary
+        // restrict download of audio files to Wi-Fi if necessary
         if (type == Keys.FILE_TYPE_AUDIO) {
             if (!ignoreWifiRestriction && !PreferencesHelper.downloadOverMobile()) {
                 allowedNetworkTypes = DownloadManager.Request.NETWORK_WIFI

app/src/main/java/com/michatec/radio/helpers/FileHelper.kt

@@ -1,17 +1,3 @@
-/*
- * FileHelper.kt
- * Implements the FileHelper object
- * A FileHelper provides helper methods for reading and writing files from and to device storage
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.app.Activity
@@ -33,7 +19,6 @@ import kotlinx.coroutines.Dispatchers.IO
 import java.io.*
 import java.util.*
 import kotlin.coroutines.resume
-import kotlin.coroutines.suspendCoroutine
 
 
 /*
@@ -246,7 +231,7 @@ object FileHelper {
             File(activity.getExternalFilesDir(Keys.FOLDER_COLLECTION), Keys.COLLECTION_M3U_FILE)
         if (!m3uFile.exists()) {
             m3uFile = File(
-                activity.getExternalFilesDir(Keys.URLRADIO_LEGACY_FOLDER_COLLECTION),
+                activity.getExternalFilesDir(Keys.RADIO_LEGACY_FOLDER_COLLECTION),
                 Keys.COLLECTION_M3U_FILE
             )
         }
@@ -270,7 +255,7 @@ object FileHelper {
             File(activity.getExternalFilesDir(Keys.FOLDER_COLLECTION), Keys.COLLECTION_PLS_FILE)
         if (!plsFile.exists()) {
             plsFile = File(
-                activity.getExternalFilesDir(Keys.URLRADIO_LEGACY_FOLDER_COLLECTION),
+                activity.getExternalFilesDir(Keys.RADIO_LEGACY_FOLDER_COLLECTION),
                 Keys.COLLECTION_PLS_FILE
             )
         }
@@ -292,7 +277,7 @@ object FileHelper {
         collection: Collection,
         lastUpdate: Date
     ) {
-        return suspendCoroutine { cont ->
+        return suspendCancellableCoroutine { cont ->
             cont.resume(saveCollection(context, collection, lastUpdate))
         }
     }
@@ -311,7 +296,7 @@ object FileHelper {
         originalFileUri: Uri,
         targetFileUri: Uri
     ): Boolean {
-        return suspendCoroutine { cont ->
+        return suspendCancellableCoroutine { cont ->
             cont.resume(copyFile(context, originalFileUri, targetFileUri))
         }
     }
@@ -319,7 +304,7 @@ object FileHelper {
 
     /* Suspend function: Exports collection of stations as M3U file - local backup copy */
     suspend fun backupCollectionAsM3uSuspended(context: Context, collection: Collection) {
-        return suspendCoroutine { cont ->
+        return suspendCancellableCoroutine { cont ->
             Log.v(TAG, "Backing up collection as M3U - Thread: ${Thread.currentThread().name}")
             // create M3U string
             val m3uString: String = CollectionHelper.createM3uString(collection)
@@ -338,7 +323,7 @@ object FileHelper {
 
     /* Suspend function: Exports collection of stations as PLS file - local backup copy */
     suspend fun backupCollectionAsPlsSuspended(context: Context, collection: Collection) {
-        return suspendCoroutine { cont ->
+        return suspendCancellableCoroutine { cont ->
             Log.v(TAG, "Backing up collection as PLS - Thread: ${Thread.currentThread().name}")
             // create PLS string
             val plsString: String = CollectionHelper.createPlsString(collection)

app/src/main/java/com/michatec/radio/helpers/ImageHelper.kt

@@ -1,17 +1,3 @@
-/*
- * ImageHelper.kt
- * Implements the ImageHelper object
- * An ImageHelper provides helper methods for image related operations
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.content.Context
@@ -25,6 +11,7 @@ import com.michatec.radio.R
 import java.io.ByteArrayOutputStream
 import java.io.IOException
 import java.io.InputStream
+import androidx.core.graphics.createBitmap
 
 
 /*
@@ -98,7 +85,7 @@ object ImageHelper {
         }
 
         // create empty bitmap and canvas
-        val outputImage: Bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888)
+        val outputImage: Bitmap = createBitmap(size, size, Bitmap.Config.ARGB_8888)
         val imageCanvas = Canvas(outputImage)
 
         // draw square background

app/src/main/java/com/michatec/radio/helpers/ImportHelper.kt

@@ -1,42 +0,0 @@
-/*
- * ImportHelper.kt
- * Implements the ImportHelper object
- * A ImportHelper provides methods for integrating station files from Radio v3
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
-package com.michatec.radio.helpers
-
-import android.content.Context
-import com.michatec.radio.Keys
-import com.michatec.radio.core.Collection
-
-
-/*
- * ImportHelper object
- */
-object ImportHelper {
-
-
-    /* */
-    fun removeDefaultStationImageUris(context: Context) {
-        val collection: Collection = FileHelper.readCollection(context)
-        collection.stations.forEach { station ->
-            if (station.image == Keys.LOCATION_DEFAULT_STATION_IMAGE) {
-                station.image = String()
-            }
-            if (station.smallImage == Keys.LOCATION_DEFAULT_STATION_IMAGE) {
-                station.smallImage = String()
-            }
-        }
-        CollectionHelper.saveCollection(context, collection, async = false)
-    }
-
-}

app/src/main/java/com/michatec/radio/helpers/NetworkHelper.kt

@@ -1,17 +1,3 @@
-/*
- * NetworkHelper.kt
- * Implements the NetworkHelper object
- * A NetworkHelper provides helper methods for network related operations
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.content.Context
@@ -19,13 +5,13 @@ import android.net.ConnectivityManager
 import android.net.Network
 import android.util.Log
 import com.michatec.radio.Keys
+import kotlinx.coroutines.suspendCancellableCoroutine
 import java.net.HttpURLConnection
 import java.net.InetAddress
 import java.net.URL
 import java.net.UnknownHostException
 import java.util.*
 import kotlin.coroutines.resume
-import kotlin.coroutines.suspendCoroutine
 
 
 /*
@@ -105,7 +91,7 @@ object NetworkHelper {
 
     /* Suspend function: Detects content type (mime type) from given URL string - async using coroutine */
     suspend fun detectContentTypeSuspended(urlString: String): ContentType {
-        return suspendCoroutine { cont ->
+        return suspendCancellableCoroutine { cont ->
             cont.resume(detectContentType(urlString))
         }
     }
@@ -113,14 +99,14 @@ object NetworkHelper {
 
     /* Suspend function: Gets a random radio-browser.info api address - async using coroutine */
     suspend fun getRadioBrowserServerSuspended(): String {
-        return suspendCoroutine { cont ->
+        return suspendCancellableCoroutine { cont ->
             val serverAddress: String = try {
                 // get all available radio browser servers
                 val serverAddressList: Array<InetAddress> =
                     InetAddress.getAllByName(Keys.RADIO_BROWSER_API_BASE)
                 // select a random address
                 serverAddressList[Random().nextInt(serverAddressList.size)].canonicalHostName
-            } catch (e: UnknownHostException) {
+            } catch (_: UnknownHostException) {
                 Keys.RADIO_BROWSER_API_DEFAULT
             }
             PreferencesHelper.saveRadioBrowserApiAddress(serverAddress)
@@ -129,7 +115,7 @@ object NetworkHelper {
     }
 
 
-    /* Creates a http connection from given url string */
+    /* Creates an http connection from given url string */
     private fun createConnection(urlString: String, redirectCount: Int = 0): HttpURLConnection? {
         var connection: HttpURLConnection? = null
 

app/src/main/java/com/michatec/radio/helpers/PreferencesHelper.kt

@@ -1,21 +1,8 @@
-/*
- * PreferencesHelper.kt
- * Implements the PreferencesHelper object
- * A PreferencesHelper provides helper methods for the saving and loading values from shared preferences
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.content.Context
 import android.content.SharedPreferences
+import android.content.pm.PackageManager
 import android.util.Log
 import androidx.core.content.edit
 import androidx.preference.PreferenceManager
@@ -213,20 +200,6 @@ object PreferencesHelper {
     }
 
 
-    /* Checks if housekeeping work needs to be done - used usually in DownloadWorker "REQUEST_UPDATE_COLLECTION" */
-    fun isHouseKeepingNecessary(): Boolean {
-        return sharedPreferences.getBoolean(Keys.PREF_ONE_TIME_HOUSEKEEPING_NECESSARY, true)
-    }
-
-
-    /* Saves state of housekeeping */
-    fun saveHouseKeepingNecessaryState(state: Boolean = false) {
-        sharedPreferences.edit {
-            putBoolean(Keys.PREF_ONE_TIME_HOUSEKEEPING_NECESSARY, state)
-        }
-    }
-
-
     /* Load currently selected app theme */
     fun loadThemeSelection(): String {
         return sharedPreferences.getString(
@@ -236,23 +209,24 @@ object PreferencesHelper {
     }
 
 
-    /* Loads value of the option: Edit Stations */
+    /* Save currently selected app theme */
-    fun loadEditStationsEnabled(): Boolean {
+    fun saveThemeSelection(theme: String) {
-        return sharedPreferences.getBoolean(Keys.PREF_EDIT_STATIONS, true)
-    }
-
-
-    /* Saves value of the option: Edit Stations (only needed for migration) */
-    fun saveEditStationsEnabled(enabled: Boolean = false) {
         sharedPreferences.edit {
-            putBoolean(Keys.PREF_EDIT_STATIONS, enabled)
+            putString(Keys.PREF_THEME_SELECTION, theme)
         }
     }
 
 
+    /* Loads value of the option: Edit Stations */
+    fun loadEditStationsEnabled(context: Context): Boolean {
+        val defaultValue = !context.packageManager.hasSystemFeature(PackageManager.FEATURE_LEANBACK)
+        return sharedPreferences.getBoolean(Keys.PREF_EDIT_STATIONS, defaultValue)
+    }
+
     /* Loads value of the option: Edit Station Streams */
-    fun loadEditStreamUrisEnabled(): Boolean {
+    fun loadEditStreamUrisEnabled(context: Context): Boolean {
-        return sharedPreferences.getBoolean(Keys.PREF_EDIT_STREAMS_URIS, true)
+        val defaultValue = !context.packageManager.hasSystemFeature(PackageManager.FEATURE_LEANBACK)
+        return sharedPreferences.getBoolean(Keys.PREF_EDIT_STREAMS_URIS, defaultValue)
     }
 
 
@@ -276,7 +250,7 @@ object PreferencesHelper {
     fun downloadOverMobile(): Boolean {
         return sharedPreferences.getBoolean(
             Keys.PREF_DOWNLOAD_OVER_MOBILE,
-            Keys.DEFAULT_DOWNLOAD_OVER_MOBILE
+            false
         )
     }
 

app/src/main/java/com/michatec/radio/helpers/ShortcutHelper.kt

@@ -1,17 +1,3 @@
-/*
- * ShortcutHelper.kt
- * Implements the ShortcutHelper object
- * A ShortcutHelper creates and handles station shortcuts on the Home screen
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.content.Context
@@ -35,7 +21,6 @@ object ShortcutHelper {
 
     /* Places shortcut on Home screen */
     fun placeShortcut(context: Context, station: Station) {
-        // credit: https://medium.com/@BladeCoder/using-support-library-26-0-0-you-can-do-bb75911e01e8
         if (ShortcutManagerCompat.isRequestPinShortcutSupported(context)) {
             val shortcut: ShortcutInfoCompat = ShortcutInfoCompat.Builder(context, station.name)
                 .setShortLabel(station.name)

app/src/main/java/com/michatec/radio/helpers/UiHelper.kt

@@ -1,17 +1,3 @@
-/*
- * UiHelper.kt
- * Implements the UiHelper object
- * A UiHelper provides helper methods for User Interface related tasks
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.content.Context

app/src/main/java/com/michatec/radio/helpers/UpdateHelper.kt

@@ -1,17 +1,3 @@
-/*
- * UpdateHelper.kt
- * Implements the UpdateHelper class
- * A UpdateHelper provides methods to update a single station or the whole collection of stations
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.helpers
 
 import android.content.Context

app/src/main/java/com/michatec/radio/search/DirectInputCheck.kt

@@ -1,17 +1,3 @@
-/*
- * DirectInputCheck.kt
- * Implements the DirectInputCheck class
- * A DirectInputCheck checks if a station url is valid and returns station via a listener
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-23 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.search
 
 import android.content.Context

app/src/main/java/com/michatec/radio/search/RadioBrowserResult.kt

@@ -1,17 +1,3 @@
-/*
- * RadioBrowserResult.kt
- * Implements the RadioBrowserResult class
- * A RadioBrowserResult is the search result of a request to api.radio-browser.info
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.search
 
 import com.google.gson.annotations.Expose

app/src/main/java/com/michatec/radio/search/RadioBrowserSearch.kt

@@ -1,17 +1,3 @@
-/*
- * RadioBrowserSearch.kt
- * Implements the RadioBrowserSearch class
- * A RadioBrowserSearch performs searches on the radio-browser.info database
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.search
 
 import android.content.Context
@@ -129,7 +115,7 @@ class RadioBrowserSearch(private var radioBrowserSearchListener: RadioBrowserSea
 
 
     /* Listens for (positive) server responses to search requests */
-    private val responseListener: Response.Listener<JSONArray> = Response.Listener<JSONArray> { response ->
+    private val responseListener: Response.Listener<JSONArray> = Response.Listener { response ->
         if (response != null) {
             radioBrowserSearchListener.onRadioBrowserSearchResults(createRadioBrowserResult(response.toString()))
         }

app/src/main/java/com/michatec/radio/search/SearchResultAdapter.kt

@@ -1,24 +1,9 @@
-/*
- * SearchResultAdapter.kt
- * Implements the SearchResultAdapter class
- * A SearchResultAdapter is a custom adapter providing search result views for a RecyclerView
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.search
 
 import android.content.Context
 import android.media.AudioAttributes
 import android.media.AudioFocusRequest
 import android.media.AudioManager
-import android.os.Build
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -240,7 +225,7 @@ class SearchResultAdapter(
     /*
      * Inner class: ViewHolder for a radio station search result
      */
-    private inner class SearchResultViewHolder(var searchResultLayout: View) :
+    private class SearchResultViewHolder(var searchResultLayout: View) :
         RecyclerView.ViewHolder(searchResultLayout) {
         val nameView: MaterialTextView = searchResultLayout.findViewById(R.id.station_name)
         val streamView: MaterialTextView = searchResultLayout.findViewById(R.id.station_url)

app/src/main/java/com/michatec/radio/ui/LayoutHolder.kt

@@ -1,17 +1,3 @@
-/*
- * LayoutHolder.kt
- * Implements the LayoutHolder class
- * A LayoutHolder hold references to the main views
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.ui
 
 import android.annotation.SuppressLint
@@ -19,6 +5,7 @@ import android.content.ClipData
 import android.content.ClipboardManager
 import android.content.Context
 import android.content.Intent
+import android.content.pm.PackageManager
 import android.graphics.drawable.AnimatedVectorDrawable
 import android.os.Build
 import android.view.View
@@ -54,30 +41,32 @@ data class LayoutHolder(var rootView: View) {
     /* Main class variables */
     var recyclerView: RecyclerView = rootView.findViewById(R.id.station_list)
     val layoutManager: LinearLayoutManager
-    private var bottomSheet: ConstraintLayout = rootView.findViewById(R.id.bottom_sheet)
+    private var bottomSheet: ConstraintLayout? = rootView.findViewById(R.id.bottom_sheet)
 
     //private var sheetMetadataViews: Group
-    private var sleepTimerRunningViews: Group = rootView.findViewById(R.id.sleep_timer_running_views)
+    private var sleepTimerRunningViews: Group? = rootView.findViewById(R.id.sleep_timer_running_views)
-    private var downloadProgressIndicator: ProgressBar = rootView.findViewById(R.id.download_progress_indicator)
+    private var downloadProgressIndicator: ProgressBar? = rootView.findViewById(R.id.download_progress_indicator)
-    private var stationImageView: ImageView = rootView.findViewById(R.id.station_icon)
+    private var stationImageView: ImageView? = rootView.findViewById(R.id.station_icon)
-    private var stationNameView: TextView = rootView.findViewById(R.id.player_station_name)
+    private var stationNameView: TextView? = rootView.findViewById(R.id.player_station_name)
-    private var metadataView: TextView = rootView.findViewById(R.id.player_station_metadata)
+    private var metadataView: TextView? = rootView.findViewById(R.id.player_station_metadata)
     var playButtonView: ImageButton = rootView.findViewById(R.id.player_play_button)
+    var playerPrevButtonView: ImageButton? = rootView.findViewById(R.id.player_prev_button)
+    var playerNextButtonView: ImageButton? = rootView.findViewById(R.id.player_next_button)
     private var bufferingIndicator: ProgressBar = rootView.findViewById(R.id.player_buffering_indicator)
-    private var sheetStreamingLinkHeadline: TextView = rootView.findViewById(R.id.sheet_streaming_link_headline)
+    private var sheetStreamingLinkHeadline: TextView? = rootView.findViewById(R.id.sheet_streaming_link_headline)
-    private var sheetStreamingLinkView: TextView = rootView.findViewById(R.id.sheet_streaming_link)
+    private var sheetStreamingLinkView: TextView? = rootView.findViewById(R.id.sheet_streaming_link)
-    private var sheetMetadataHistoryHeadline: TextView = rootView.findViewById(R.id.sheet_metadata_headline)
+    private var sheetMetadataHistoryHeadline: TextView? = rootView.findViewById(R.id.sheet_metadata_headline)
-    private var sheetMetadataHistoryView: TextView = rootView.findViewById(R.id.sheet_metadata_history)
+    private var sheetMetadataHistoryView: TextView? = rootView.findViewById(R.id.sheet_metadata_history)
-    private var sheetNextMetadataView: ImageButton = rootView.findViewById(R.id.sheet_next_metadata_button)
+    private var sheetNextMetadataView: ImageButton? = rootView.findViewById(R.id.sheet_next_metadata_button)
-    private var sheetPreviousMetadataView: ImageButton = rootView.findViewById(R.id.sheet_previous_metadata_button)
+    private var sheetPreviousMetadataView: ImageButton? = rootView.findViewById(R.id.sheet_previous_metadata_button)
-    private var sheetCopyMetadataButtonView: ImageButton = rootView.findViewById(R.id.copy_station_metadata_button)
+    private var sheetCopyMetadataButtonView: ImageButton? = rootView.findViewById(R.id.copy_station_metadata_button)
-    private var sheetShareLinkButtonView: ImageView = rootView.findViewById(R.id.sheet_share_link_button)
+    private var sheetShareLinkButtonView: ImageView? = rootView.findViewById(R.id.sheet_share_link_button)
-    private var sheetBitrateView: TextView = rootView.findViewById(R.id.sheet_bitrate_view)
+    private var sheetBitrateView: TextView? = rootView.findViewById(R.id.sheet_bitrate_view)
-    var sheetSleepTimerStartButtonView: ImageButton = rootView.findViewById(R.id.sleep_timer_start_button)
+    var sheetSleepTimerStartButtonView: ImageButton? = rootView.findViewById(R.id.sleep_timer_start_button)
-    var sheetSleepTimerCancelButtonView: ImageButton = rootView.findViewById(R.id.sleep_timer_cancel_button)
+    var sheetSleepTimerCancelButtonView: ImageButton? = rootView.findViewById(R.id.sleep_timer_cancel_button)
     private var sheetSleepTimerRemainingTimeView: TextView = rootView.findViewById(R.id.sleep_timer_remaining_time)
     private var onboardingLayout: ConstraintLayout = rootView.findViewById(R.id.onboarding_layout)
-    private var bottomSheetBehavior: BottomSheetBehavior<ConstraintLayout> = BottomSheetBehavior.from(bottomSheet)
+    private var bottomSheetBehavior: BottomSheetBehavior<ConstraintLayout>? = bottomSheet?.let { BottomSheetBehavior.from(it) }
     private var metadataHistory: MutableList<String>
     private var metadataHistoryPosition: Int
     private var isBuffering: Boolean
@@ -97,31 +86,31 @@ data class LayoutHolder(var rootView: View) {
         recyclerView.itemAnimator = DefaultItemAnimator()
 
         // set up metadata history next and previous buttons
-        sheetPreviousMetadataView.setOnClickListener {
+        sheetPreviousMetadataView?.setOnClickListener {
             if (metadataHistory.isNotEmpty()) {
                 if (metadataHistoryPosition > 0) {
                     metadataHistoryPosition -= 1
                 } else {
                     metadataHistoryPosition = metadataHistory.size - 1
                 }
-                sheetMetadataHistoryView.text = metadataHistory[metadataHistoryPosition]
+                sheetMetadataHistoryView?.text = metadataHistory[metadataHistoryPosition]
             }
         }
-        sheetNextMetadataView.setOnClickListener {
+        sheetNextMetadataView?.setOnClickListener {
             if (metadataHistory.isNotEmpty()) {
                 if (metadataHistoryPosition < metadataHistory.size - 1) {
                     metadataHistoryPosition += 1
                 } else {
                     metadataHistoryPosition = 0
                 }
-                sheetMetadataHistoryView.text = metadataHistory[metadataHistoryPosition]
+                sheetMetadataHistoryView?.text = metadataHistory[metadataHistoryPosition]
             }
         }
-        sheetMetadataHistoryView.setOnLongClickListener {
+        sheetMetadataHistoryView?.setOnLongClickListener {
             copyMetadataHistoryToClipboard()
             return@setOnLongClickListener true
         }
-        sheetMetadataHistoryHeadline.setOnLongClickListener {
+        sheetMetadataHistoryHeadline?.setOnLongClickListener {
             copyMetadataHistoryToClipboard()
             return@setOnLongClickListener true
         }
@@ -137,29 +126,28 @@ data class LayoutHolder(var rootView: View) {
 
         // set default metadata views, when playback has stopped
         if (!isPlaying) {
-            metadataView.text = station.name
+            metadataView?.text = station.name
-            sheetMetadataHistoryView.text = station.name
+            sheetMetadataHistoryView?.text = station.name
-//            sheetMetadataHistoryView.isSelected = true
         }
 
         // update name
-        stationNameView.text = station.name
+        stationNameView?.text = station.name
 
         // toggle text scrolling (marquee) if necessary
-        stationNameView.isSelected = isPlaying
+        stationNameView?.isSelected = isPlaying
 
         // reduce the shadow left and right because of scrolling (Marquee)
-        stationNameView.setFadingEdgeLength(8)
+        stationNameView?.setFadingEdgeLength(8)
 
         // update cover
         if (station.imageColor != -1) {
-            stationImageView.setBackgroundColor(station.imageColor)
+            stationImageView?.setBackgroundColor(station.imageColor)
         }
-        stationImageView.setImageBitmap(ImageHelper.getStationImage(context, station.smallImage))
+        stationImageView?.setImageBitmap(ImageHelper.getStationImage(context, station.smallImage))
-        stationImageView.contentDescription = "${context.getString(R.string.descr_player_station_image)}: ${station.name}"
+        stationImageView?.contentDescription = "${context.getString(R.string.descr_player_station_image)}: ${station.name}"
 
         // update streaming link
-        sheetStreamingLinkView.text = station.getStreamUri()
+        sheetStreamingLinkView?.text = station.getStreamUri()
 
         val bitrateText: CharSequence = if (station.codec.isNotEmpty()) {
             if (station.bitrate == 0) {
@@ -188,50 +176,50 @@ data class LayoutHolder(var rootView: View) {
         }
 
         // update bitrate
-        sheetBitrateView.text = bitrateText
+        sheetBitrateView?.text = bitrateText
 
         // update click listeners
-        sheetStreamingLinkHeadline.setOnClickListener {
+        sheetStreamingLinkHeadline?.setOnClickListener {
             copyToClipboard(
                 context,
-                sheetStreamingLinkView.text
+                sheetStreamingLinkView?.text ?: ""
             )
         }
-        sheetStreamingLinkView.setOnClickListener {
+        sheetStreamingLinkView?.setOnClickListener {
             copyToClipboard(
                 context,
-                sheetStreamingLinkView.text
+                sheetStreamingLinkView?.text ?: ""
             )
         }
-        sheetMetadataHistoryHeadline.setOnClickListener {
+        sheetMetadataHistoryHeadline?.setOnClickListener {
             copyToClipboard(
                 context,
-                sheetMetadataHistoryView.text
+                sheetMetadataHistoryView?.text ?: ""
             )
         }
-        sheetMetadataHistoryView.setOnClickListener {
+        sheetMetadataHistoryView?.setOnClickListener {
             copyToClipboard(
                 context,
-                sheetMetadataHistoryView.text
+                sheetMetadataHistoryView?.text ?: ""
             )
         }
-        sheetCopyMetadataButtonView.setOnClickListener {
+        sheetCopyMetadataButtonView?.setOnClickListener {
             copyToClipboard(
                 context,
-                sheetMetadataHistoryView.text
+                sheetMetadataHistoryView?.text ?: ""
             )
         }
-        sheetBitrateView.setOnClickListener {
+        sheetBitrateView?.setOnClickListener {
             copyToClipboard(
                 context,
-                sheetBitrateView.text
+                sheetBitrateView?.text ?: ""
             )
         }
-        sheetShareLinkButtonView.setOnClickListener {
+        sheetShareLinkButtonView?.setOnClickListener {
             val share = Intent.createChooser(Intent().apply {
                 action = Intent.ACTION_SEND
-                putExtra(Intent.EXTRA_TITLE, stationNameView.text)
+                putExtra(Intent.EXTRA_TITLE, stationNameView?.text)
-                putExtra(Intent.EXTRA_TEXT, sheetStreamingLinkView.text)
+                putExtra(Intent.EXTRA_TEXT, sheetStreamingLinkView?.text ?: "")
                 type = "text/plain"
             }, null)
             context.startActivity(share)
@@ -264,11 +252,11 @@ data class LayoutHolder(var rootView: View) {
     fun updateMetadata(metadataHistoryList: MutableList<String>?) {
         if (!metadataHistoryList.isNullOrEmpty()) {
             metadataHistory = metadataHistoryList
-            if (metadataHistory.last() != metadataView.text) {
+            if (metadataHistory.last() != metadataView?.text) {
                 metadataHistoryPosition = metadataHistory.size - 1
                 val metadataString = metadataHistory[metadataHistoryPosition]
-                metadataView.text = metadataString
+                metadataView?.text = metadataString
-                sheetMetadataHistoryView.text = metadataString
+                sheetMetadataHistoryView?.text = metadataString
             }
         }
     }
@@ -278,14 +266,16 @@ data class LayoutHolder(var rootView: View) {
     fun updateSleepTimer(context: Context, timeRemaining: Long = 0L) {
         when (timeRemaining) {
             0L -> {
-                sleepTimerRunningViews.isGone = true
+                sleepTimerRunningViews?.isGone = true
+                sheetSleepTimerRemainingTimeView.isVisible = false
             }
             else -> {
-                sleepTimerRunningViews.isVisible = true
+                sleepTimerRunningViews?.isVisible = true
+                sheetSleepTimerRemainingTimeView.isVisible = true
                 val sleepTimerTimeRemaining = DateTimeHelper.convertToHoursMinutesSeconds(timeRemaining)
                 sheetSleepTimerRemainingTimeView.text = sleepTimerTimeRemaining
                 sheetSleepTimerRemainingTimeView.contentDescription = "${context.getString(R.string.descr_expanded_player_sleep_timer_remaining_time)}: $sleepTimerTimeRemaining"
-                stationNameView.isSelected = false
+                stationNameView?.isSelected = false
             }
         }
     }
@@ -297,12 +287,10 @@ data class LayoutHolder(var rootView: View) {
             playButtonView.setImageResource(R.drawable.ic_audio_waves_animated)
             val animatedVectorDrawable = playButtonView.drawable as? AnimatedVectorDrawable
             animatedVectorDrawable?.start()
-            sheetSleepTimerStartButtonView.isVisible = true
+            sheetSleepTimerStartButtonView?.isVisible = true
-            // bufferingIndicator.isVisible = false
         } else {
             playButtonView.setImageResource(R.drawable.ic_player_play_symbol_42dp)
-            sheetSleepTimerStartButtonView.isVisible = false
+            sheetSleepTimerStartButtonView?.isVisible = false
-            // bufferingIndicator.isVisible = isBuffering
         }
     }
 
@@ -313,23 +301,11 @@ data class LayoutHolder(var rootView: View) {
         isBuffering = buffering
     }
 
-
-    /* Toggles visibility of player depending on playback state - hiding it when playback is stopped (not paused or playing) */
-//    fun togglePlayerVisibility(context: Context, playbackState: Int): Boolean {
-//        when (playbackState) {
-//            PlaybackStateCompat.STATE_STOPPED -> return hidePlayer(context)
-//            PlaybackStateCompat.STATE_NONE -> return hidePlayer(context)
-//            PlaybackStateCompat.STATE_ERROR -> return hidePlayer(context)
-//            else -> return showPlayer(context)
-//        }
-//    }
-
-
     /* Toggles visibility of the download progress indicator */
     fun toggleDownloadProgressIndicator() {
         when (PreferencesHelper.loadActiveDownloads()) {
-            Keys.ACTIVE_DOWNLOADS_EMPTY -> downloadProgressIndicator.isGone = true
+            Keys.ACTIVE_DOWNLOADS_EMPTY -> downloadProgressIndicator?.isGone = true
-            else -> downloadProgressIndicator.isVisible = true
+            else -> downloadProgressIndicator?.isVisible = true
         }
     }
 
@@ -350,27 +326,27 @@ data class LayoutHolder(var rootView: View) {
 
     /* Initiates the rotation animation of the play button  */
     fun animatePlaybackButtonStateTransition(context: Context, isPlaying: Boolean) {
-        when (isPlaying) {
+        if (context.packageManager.hasSystemFeature(PackageManager.FEATURE_LEANBACK)) {
-            true -> {
+            // TV: Toggle play button immediately for snappier feel
-                val rotateClockwise = AnimationUtils.loadAnimation(context, R.anim.rotate_clockwise_slow)
+            togglePlayButton(isPlaying)
-                rotateClockwise.setAnimationListener(createAnimationListener(true))
+        } else {
-                playButtonView.startAnimation(rotateClockwise)
+            // Handy/Tablet: Rotate the play button
-            }
+            val rotateAnimation = AnimationUtils.loadAnimation(context, if (isPlaying) R.anim.rotate_clockwise_slow else R.anim.rotate_counterclockwise_fast)
-            false -> {
+            rotateAnimation.setAnimationListener(createAnimationListener(isPlaying))
-                val rotateCounterClockwise = AnimationUtils.loadAnimation(context, R.anim.rotate_counterclockwise_fast)
+            playButtonView.startAnimation(rotateAnimation)
-                rotateCounterClockwise.setAnimationListener(createAnimationListener(false))
-                playButtonView.startAnimation(rotateCounterClockwise)
-            }
-
         }
     }
 
 
     /* Shows player */
     fun showPlayer(context: Context): Boolean {
+        if (bottomSheetBehavior != null) {
             UiHelper.setViewMargins(context, recyclerView, 0, 0, 0, Keys.BOTTOM_SHEET_PEEK_HEIGHT)
-        if (bottomSheetBehavior.state == BottomSheetBehavior.STATE_HIDDEN && onboardingLayout.isGone) {
+            if (bottomSheetBehavior?.state == BottomSheetBehavior.STATE_HIDDEN && onboardingLayout.isGone) {
-            bottomSheetBehavior.state = BottomSheetBehavior.STATE_COLLAPSED
+                bottomSheetBehavior?.state = BottomSheetBehavior.STATE_COLLAPSED
+            }
+        } else {
+            UiHelper.setViewMargins(context, recyclerView, 0, 0, 0, 0)
         }
         return true
     }
@@ -379,15 +355,15 @@ data class LayoutHolder(var rootView: View) {
     /* Hides player */
     private fun hidePlayer(context: Context): Boolean {
         UiHelper.setViewMargins(context, recyclerView, 0, 0, 0, 0)
-        bottomSheetBehavior.state = BottomSheetBehavior.STATE_HIDDEN
+        bottomSheetBehavior?.state = BottomSheetBehavior.STATE_HIDDEN
         return true
     }
 
 
     /* Minimizes player sheet if expanded */
     fun minimizePlayerIfExpanded(): Boolean {
-        return if (bottomSheetBehavior.state == BottomSheetBehavior.STATE_EXPANDED) {
+        return if (bottomSheetBehavior?.state == BottomSheetBehavior.STATE_EXPANDED) {
-            bottomSheetBehavior.state = BottomSheetBehavior.STATE_COLLAPSED
+            bottomSheetBehavior?.state = BottomSheetBehavior.STATE_COLLAPSED
             true
         } else {
             false
@@ -400,7 +376,7 @@ data class LayoutHolder(var rootView: View) {
         return object : Animation.AnimationListener {
             override fun onAnimationStart(animation: Animation) {}
             override fun onAnimationEnd(animation: Animation) {
-                // set up button symbol and playback indicator afterwards
+                // set up button symbol and playback indicator afterward
                 togglePlayButton(isPlaying)
             }
 
@@ -411,9 +387,10 @@ data class LayoutHolder(var rootView: View) {
 
     /* Sets up the player (BottomSheet) */
     private fun setupBottomSheet() {
+        if (bottomSheetBehavior != null) {
             // show / hide the small player
-        bottomSheetBehavior.state = BottomSheetBehavior.STATE_COLLAPSED
+            bottomSheetBehavior?.state = BottomSheetBehavior.STATE_COLLAPSED
-        bottomSheetBehavior.addBottomSheetCallback(object :
+            bottomSheetBehavior?.addBottomSheetCallback(object :
                 BottomSheetBehavior.BottomSheetCallback() {
                 override fun onSlide(view: View, slideOffset: Float) {
                 }
@@ -430,19 +407,20 @@ data class LayoutHolder(var rootView: View) {
                 }
             })
             // toggle collapsed state on tap
-        bottomSheet.setOnClickListener { toggleBottomSheetState() }
+            bottomSheet?.setOnClickListener { toggleBottomSheetState() }
-        stationImageView.setOnClickListener { toggleBottomSheetState() }
+            stationImageView?.setOnClickListener { toggleBottomSheetState() }
-        stationNameView.setOnClickListener { toggleBottomSheetState() }
+            stationNameView?.setOnClickListener { toggleBottomSheetState() }
-        metadataView.setOnClickListener { toggleBottomSheetState() }
+            metadataView?.setOnClickListener { toggleBottomSheetState() }
+        }
     }
 
 
     /* Toggle expanded/collapsed state of bottom sheet */
     private fun toggleBottomSheetState() {
-        when (bottomSheetBehavior.state) {
+        when (bottomSheetBehavior?.state) {
-            BottomSheetBehavior.STATE_COLLAPSED -> bottomSheetBehavior.state =
+            BottomSheetBehavior.STATE_COLLAPSED -> bottomSheetBehavior?.state =
                 BottomSheetBehavior.STATE_EXPANDED
-            else -> bottomSheetBehavior.state = BottomSheetBehavior.STATE_COLLAPSED
+            else -> bottomSheetBehavior?.state = BottomSheetBehavior.STATE_COLLAPSED
         }
     }
 

app/src/main/java/com/michatec/radio/ui/PlayerState.kt

@@ -1,17 +1,3 @@
-/*
- * PlayerState.kt
- * Implements the PlayerState class
- * A PlayerState holds parameters describing the state of the player part of the UI
- *
- * This file is part of
- * TRANSISTOR - Radio App for Android
- *
- * Copyright (c) 2015-22 - Y20K.org
- * Licensed under the MIT-License
- * http://opensource.org/licenses/MIT
- */
-
-
 package com.michatec.radio.ui
 
 import android.os.Parcelable

app/src/main/res/color/selector_card_station_stroke.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:color="@color/list_card_stroke_focused" android:state_focused="true" />
+    <item android:color="@color/list_card_stroke_background" />
+</selector>

app/src/main/res/drawable/ic_codeberg_24dp.xml

@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24.0"
-    android:viewportHeight="24.0">
-  <path
-      android:fillColor="@color/icon_default"
-      android:pathData="m11.999,2.623c-5.54,0 -9.999,4.462 -9.999,10.001 -0,1.878 0.529,3.721 1.528,5.313l8.336,-10.778c0.06,-0.077 0.209,-0.077 0.27,0l3.482,4.502h-2.494l0.054,0.199h2.594l0.736,0.949h-3.062l0.086,0.311h3.217l0.647,0.836h-3.631l0.113,0.402h3.827l0.579,0.745h-4.198l0.137,0.49h4.438l0.508,0.655h-4.764l0.152,0.542h5.031l0.468,0.606h-5.33l0.152,0.542h5.598c0.998,-1.592 1.528,-3.435 1.528,-5.313 0,-5.54 -4.462,-10.001 -10.001,-10.001zM15.044,18.543 L15.196,19.085h4.438c0.145,-0.171 0.294,-0.361 0.428,-0.542zM15.365,19.69 L15.515,20.232h2.969c0.194,-0.166 0.405,-0.357 0.594,-0.542zM15.684,20.838 L15.836,21.377h1.003c0.296,-0.17 0.571,-0.343 0.868,-0.539z" />
-</vector>

app/src/main/res/drawable/ic_refresh_24dp.xml

@@ -0,0 +1,17 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+
+    <path
+        android:fillColor="@color/icon_default"
+        android:pathData="M17.65,6.35C16.2,4.9 14.21,4 12,4
+                          7.58,4 4,7.58 4,12h2
+                          c0,-3.31 2.69,-6 6,-6
+                          1.66,0 3.14,0.69 4.22,1.78L13,11h7V4l-2.35,2.35z
+                          M6.35,17.65C7.8,19.1 9.79,20 12,20
+                          c4.42,0 8,-3.58 8,-8h-2
+                          c0,3.31 -2.69,6 -6,6
+                          -1.66,0 -3.14,-0.69 -4.22,-1.78L11,13H4v7l2.35,-2.35z"/>
+</vector>

app/src/main/res/drawable/selector_card_station_background.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@color/search_result_background_selected" android:state_focused="true" />
+    <item android:drawable="@android:color/transparent" />
+</selector>

app/src/main/res/drawable/selector_card_station_stroke.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:color="@color/list_card_stroke_focused" android:state_focused="true" />
+    <item android:color="@color/list_card_stroke_background" />
+</selector>

app/src/main/res/drawable/selector_generic_button_focus.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_focused="true">
+        <shape android:shape="rectangle">
+            <solid android:color="#80FFFFFF" />
+            <corners android:radius="8dp" />
+            <stroke android:width="3dp" android:color="@color/default_neutral_white" />
+        </shape>
+    </item>
+    <item android:drawable="@android:color/transparent" />
+</selector>

app/src/main/res/drawable/selector_search_result_item.xml

@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <!-- View is "selected" -->
+    <!-- View is "selected" or "focused" (for TV) -->
     <item android:drawable="@drawable/shape_search_result_item_selected" android:state_selected="true" />
+    <item android:drawable="@drawable/shape_search_result_item_selected" android:state_focused="true" />
 
     <!-- Default state. -->
     <item android:drawable="@drawable/shape_search_result_item" />

app/src/main/res/drawable/shape_player_button_small_selected.xml

@@ -1,8 +1,8 @@
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="oval">
     <stroke
-        android:width="2dp"
+        android:width="4dp"
-        android:color="@color/default_neutral_lighter" />
+        android:color="@color/default_neutral_white" />
     <size
         android:width="56dp"
         android:height="56dp" />

app/src/main/res/drawable/splash_screen.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@color/splashBackgroundColor" />
+    <item
+        android:width="160dp"
+        android:height="160dp"
+        android:gravity="center"
+        android:drawable="@mipmap/ic_launcher" />
+</layer-list>

app/src/main/res/layout-television/bottom_sheet_playback_controls.xml

@@ -0,0 +1,135 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/bottom_sheet"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="@drawable/shape_player_sheet_background"
+    android:padding="24dp">
+
+    <com.google.android.material.imageview.ShapeableImageView
+        android:id="@+id/station_icon"
+        android:layout_width="120dp"
+        android:layout_height="120dp"
+        android:background="@drawable/shape_cover_small"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:shapeAppearanceOverlay="@style/RoundedCorners"
+        app:srcCompat="@drawable/ic_default_station_image_72dp" />
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/player_station_name"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="24dp"
+        android:textAppearance="@style/TextAppearance.Material3.HeadlineMedium"
+        android:textColor="@color/player_sheet_text_main"
+        android:textStyle="bold"
+        app:layout_constraintEnd_toStartOf="@+id/player_play_button"
+        app:layout_constraintStart_toEndOf="@+id/station_icon"
+        app:layout_constraintTop_toTopOf="@+id/station_icon"
+        tools:text="Station Name" />
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/player_station_metadata"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:textAppearance="@style/TextAppearance.Material3.BodyLarge"
+        android:textColor="@color/player_sheet_text_main"
+        app:layout_constraintEnd_toEndOf="@+id/player_station_name"
+        app:layout_constraintStart_toStartOf="@+id/player_station_name"
+        app:layout_constraintTop_toBottomOf="@+id/player_station_name"
+        tools:text="Metadata Info" />
+
+    <ImageButton
+        android:id="@+id/player_play_button"
+        android:layout_width="80dp"
+        android:layout_height="80dp"
+        android:background="@drawable/selector_play_button"
+        android:focusable="true"
+        android:scaleType="center"
+        app:layout_constraintBottom_toBottomOf="@+id/station_icon"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="@+id/station_icon"
+        app:srcCompat="@drawable/ic_player_play_symbol_42dp" />
+
+    <LinearLayout
+        android:id="@+id/detailed_controls_row"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="32dp"
+        android:gravity="center_vertical"
+        android:orientation="horizontal"
+        app:layout_constraintTop_toBottomOf="@+id/station_icon">
+
+        <ImageButton
+            android:id="@+id/sheet_previous_metadata_button"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:background="@drawable/selector_generic_button_focus"
+            android:focusable="true"
+            app:srcCompat="@drawable/ic_chevron_left_24dp" />
+
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/sheet_metadata_history"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:layout_marginHorizontal="16dp"
+            android:textAlignment="center"
+            android:textAppearance="@style/TextAppearance.Material3.BodyMedium"
+            android:textColor="@color/player_sheet_text_main"
+            tools:text="Metadata History" />
+
+        <ImageButton
+            android:id="@+id/sheet_next_metadata_button"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:background="@drawable/selector_generic_button_focus"
+            android:focusable="true"
+            app:srcCompat="@drawable/ic_chevron_right_24dp" />
+
+        <ImageButton
+            android:id="@+id/copy_station_metadata_button"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:layout_marginStart="16dp"
+            android:background="@drawable/selector_generic_button_focus"
+            android:focusable="true"
+            app:srcCompat="@drawable/ic_copy_content_24dp" />
+
+        <ImageButton
+            android:id="@+id/sleep_timer_start_button"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:layout_marginStart="16dp"
+            android:background="@drawable/selector_generic_button_focus"
+            android:focusable="true"
+            app:srcCompat="@drawable/ic_sleep_timer_24dp" />
+
+        <ImageButton
+            android:id="@+id/sleep_timer_cancel_button"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:layout_marginStart="8dp"
+            android:background="@drawable/selector_generic_button_focus"
+            android:focusable="true"
+            android:visibility="gone"
+            app:srcCompat="@drawable/ic_clear_24dp" />
+
+    </LinearLayout>
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/sleep_timer_remaining_time"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:textAppearance="@style/TextAppearance.Material3.LabelLarge"
+        android:textColor="@color/player_sheet_text_main"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/detailed_controls_row"
+        tools:text="15:00" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout-television/dialog_add_station.xml

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="16dp">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/station_list"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:clipToPadding="false"
+        android:paddingBottom="16dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@+id/guideline"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/guideline"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        app:layout_constraintGuide_percent="0.7" />
+
+    <LinearLayout
+        android:id="@+id/dialog_button_container"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="16dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/guideline"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <Button
+            android:id="@+id/dialog_positive_button"
+            style="@style/Widget.Material3.Button"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/dialog_find_station_button_add" />
+
+        <Button
+            android:id="@+id/dialog_negative_button"
+            style="@style/Widget.Material3.Button.TextButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="12dp"
+            android:text="@string/dialog_generic_button_cancel" />
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout-television/dialog_find_station.xml

@@ -0,0 +1,88 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="16dp">
+
+    <androidx.appcompat.widget.SearchView
+        android:id="@+id/station_search_box_view"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        app:iconifiedByDefault="false"
+        app:layout_constraintEnd_toStartOf="@+id/guideline"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:queryHint="@string/dialog_find_station_hint" />
+
+    <ProgressBar
+        android:id="@+id/search_request_progress_indicator"
+        style="?android:attr/progressBarStyleHorizontal"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:indeterminate="true"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="@+id/station_search_box_view"
+        app:layout_constraintStart_toStartOf="@+id/station_search_box_view"
+        app:layout_constraintTop_toBottomOf="@+id/station_search_box_view" />
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/no_results_text_view"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/dialog_find_station_no_results"
+        android:textAppearance="@style/TextAppearance.Material3.BodyLarge"
+        android:visibility="gone"
+        app:layout_constraintEnd_toStartOf="@+id/guideline"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/search_request_progress_indicator" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/station_search_result_list"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginTop="8dp"
+        android:clipToPadding="false"
+        android:paddingBottom="16dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@+id/guideline"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/no_results_text_view" />
+
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/guideline"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        app:layout_constraintGuide_percent="0.7" />
+
+    <!-- Right side: Actions -->
+    <LinearLayout
+        android:id="@+id/dialog_button_container"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="16dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/guideline"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <Button
+            android:id="@+id/dialog_positive_button"
+            style="@style/Widget.Material3.Button"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/dialog_find_station_button_add" />
+
+        <Button
+            android:id="@+id/dialog_negative_button"
+            style="@style/Widget.Material3.Button.TextButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="12dp"
+            android:text="@string/dialog_generic_button_cancel" />
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout-television/dialog_generic_with_details.xml

@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="800dp"
+    android:layout_height="wrap_content"
+    android:padding="24dp">
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/dialog_message"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/dialog_error_message_default"
+        android:textAppearance="@style/TextAppearance.Material3.HeadlineSmall"
+        android:textColor="@color/text_default"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:text="@string/dialog_error_message_default" />
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/dialog_details_link"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="24dp"
+        android:focusable="true"
+        android:clickable="true"
+        android:background="?attr/selectableItemBackground"
+        android:padding="8dp"
+        android:text="@string/dialog_generic_details_button"
+        android:textAppearance="@style/TextAppearance.Material3.LabelLarge"
+        android:textColor="@color/text_default"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/dialog_message"
+        tools:text="@string/dialog_generic_details_button" />
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/dialog_details"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="12dp"
+        android:focusable="true"
+        android:clickable="true"
+        android:scrollbars="vertical"
+        android:text="@string/dialog_opml_import_details_default"
+        android:textAppearance="@style/TextAppearance.Material3.BodyLarge"
+        android:textColor="@color/text_default"
+        android:textIsSelectable="true"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/dialog_details_link"
+        tools:text="@string/dialog_opml_import_details_default" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout-television/dialog_theme_selection.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="24dp">
+
+    <TextView
+        android:id="@+id/dialog_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/pref_theme_selection_title"
+        android:textSize="24sp"
+        android:textStyle="bold"
+        android:paddingBottom="16dp" />
+
+    <RadioGroup
+        android:id="@+id/theme_radio_group"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <RadioButton
+            android:id="@+id/radio_theme_follow_system"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/pref_theme_selection_mode_device_default"
+            android:textSize="20sp"
+            android:padding="12dp"
+            android:focusable="true"
+            android:clickable="true" />
+
+        <RadioButton
+            android:id="@+id/radio_theme_light"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/pref_theme_selection_mode_light"
+            android:textSize="20sp"
+            android:padding="12dp"
+            android:focusable="true"
+            android:clickable="true" />
+
+        <RadioButton
+            android:id="@+id/radio_theme_dark"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/pref_theme_selection_mode_dark"
+            android:textSize="20sp"
+            android:padding="12dp"
+            android:focusable="true"
+            android:clickable="true" />
+
+    </RadioGroup>
+
+</LinearLayout>

app/src/main/res/layout-television/element_search_result.xml

@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginBottom="8dp"
+    android:focusable="true"
+    android:clickable="true"
+    android:nextFocusRight="@+id/dialog_positive_button"
+    android:background="@drawable/selector_search_result_item">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp">
+
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/station_name"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:ellipsize="marquee"
+            android:singleLine="true"
+            android:textAppearance="@style/TextAppearance.Material3.TitleLarge"
+            android:textColor="@color/text_default"
+            android:textStyle="bold"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:text="Station Name" />
+
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/station_url"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="4dp"
+            android:ellipsize="marquee"
+            android:singleLine="true"
+            android:textAppearance="@style/TextAppearance.Material3.BodyLarge"
+            android:textColor="@color/text_lightweight"
+            app:layout_constraintEnd_toEndOf="@+id/station_name"
+            app:layout_constraintStart_toStartOf="@+id/station_name"
+            app:layout_constraintTop_toBottomOf="@+id/station_name"
+            tools:text="http://stream.url" />
+
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/station_bitrate"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="2dp"
+            android:singleLine="true"
+            android:textAppearance="@style/TextAppearance.Material3.LabelLarge"
+            android:textColor="@color/text_lightweight"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="@+id/station_url"
+            app:layout_constraintStart_toStartOf="@+id/station_url"
+            app:layout_constraintTop_toBottomOf="@+id/station_url"
+            tools:text="128 kbps" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</LinearLayout>

app/src/main/res/layout-television/fragment_player.xml

@@ -0,0 +1,206 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="horizontal"
+    android:baselineAligned="false">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/station_list"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:clipToPadding="false"
+            android:padding="8dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <include
+            layout="@layout/element_onboarding"
+            android:visibility="gone" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+    <ScrollView
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1.2"
+        android:background="@color/player_sheet_background"
+        android:fillViewport="true">
+
+        <androidx.constraintlayout.widget.ConstraintLayout
+            android:id="@+id/player_ui"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="24dp">
+
+            <com.google.android.material.imageview.ShapeableImageView
+                android:id="@+id/station_icon"
+                android:layout_width="160dp"
+                android:layout_height="160dp"
+                android:layout_marginTop="16dp"
+                android:background="@drawable/shape_cover_small"
+                android:contentDescription="@string/descr_player_station_image"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent"
+                app:shapeAppearanceOverlay="@style/RoundedCorners"
+                app:srcCompat="@drawable/ic_default_station_image_72dp" />
+
+            <com.google.android.material.textview.MaterialTextView
+                android:id="@+id/player_station_name"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:ellipsize="marquee"
+                android:marqueeRepeatLimit="marquee_forever"
+                android:singleLine="true"
+                android:textAlignment="center"
+                android:textAppearance="@style/TextAppearance.Material3.HeadlineMedium"
+                android:textColor="@color/player_sheet_text_main"
+                android:textStyle="bold"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/station_icon"
+                tools:text="Station Name" />
+
+            <com.google.android.material.textview.MaterialTextView
+                android:id="@+id/player_station_metadata"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="4dp"
+                android:ellipsize="end"
+                android:singleLine="true"
+                android:textAlignment="center"
+                android:textAppearance="@style/TextAppearance.Material3.BodyLarge"
+                android:textColor="@color/player_sheet_text_main"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/player_station_name"
+                tools:text="Artist - Title" />
+
+            <LinearLayout
+                android:id="@+id/controls_row"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:gravity="center"
+                android:orientation="horizontal"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/player_station_metadata">
+
+                <ImageButton
+                    android:id="@+id/player_prev_button"
+                    android:layout_width="60dp"
+                    android:layout_height="60dp"
+                    android:layout_marginEnd="16dp"
+                    android:background="@drawable/selector_generic_button_focus"
+                    android:contentDescription="@string/descr_expanded_player_metadata_previous_button"
+                    android:focusable="true"
+                    android:padding="12dp"
+                    app:srcCompat="@drawable/ic_chevron_left_24dp" />
+
+                <ImageButton
+                    android:id="@+id/player_play_button"
+                    android:layout_width="80dp"
+                    android:layout_height="80dp"
+                    android:background="@drawable/selector_play_button"
+                    android:contentDescription="@string/descr_player_playback_button"
+                    android:focusable="true"
+                    android:scaleType="center"
+                    app:srcCompat="@drawable/ic_player_play_symbol_42dp" />
+
+                <ImageButton
+                    android:id="@+id/player_next_button"
+                    android:layout_width="60dp"
+                    android:layout_height="60dp"
+                    android:layout_marginStart="16dp"
+                    android:background="@drawable/selector_generic_button_focus"
+                    android:contentDescription="@string/descr_expanded_player_metadata_next_button"
+                    android:focusable="true"
+                    android:padding="12dp"
+                    app:srcCompat="@drawable/ic_chevron_right_24dp" />
+
+            </LinearLayout>
+
+            <LinearLayout
+                android:id="@+id/secondary_controls_row"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="12dp"
+                android:gravity="center"
+                android:orientation="horizontal"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/controls_row">
+
+                <ImageButton
+                    android:id="@+id/copy_station_metadata_button"
+                    android:layout_width="48dp"
+                    android:layout_height="48dp"
+                    android:layout_marginEnd="12dp"
+                    android:background="@drawable/selector_generic_button_focus"
+                    android:focusable="true"
+                    android:padding="8dp"
+                    app:srcCompat="@drawable/ic_copy_content_24dp"
+                    tools:ignore="ContentDescription" />
+
+                <ImageButton
+                    android:id="@+id/sleep_timer_start_button"
+                    android:layout_width="48dp"
+                    android:layout_height="48dp"
+                    android:layout_marginEnd="12dp"
+                    android:background="@drawable/selector_generic_button_focus"
+                    android:focusable="true"
+                    android:padding="8dp"
+                    app:srcCompat="@drawable/ic_sleep_timer_24dp"
+                    tools:ignore="ContentDescription" />
+
+                <ImageButton
+                    android:id="@+id/sleep_timer_cancel_button"
+                    android:layout_width="48dp"
+                    android:layout_height="48dp"
+                    android:background="@drawable/selector_generic_button_focus"
+                    android:focusable="true"
+                    android:padding="8dp"
+                    android:visibility="gone"
+                    app:srcCompat="@drawable/ic_clear_24dp"
+                    tools:ignore="ContentDescription" />
+
+            </LinearLayout>
+
+            <ProgressBar
+                android:id="@+id/player_buffering_indicator"
+                style="?android:attr/progressBarStyleLarge"
+                android:layout_width="96dp"
+                android:layout_height="96dp"
+                android:indeterminateTint="@color/player_button_buffering"
+                android:visibility="invisible"
+                app:layout_constraintBottom_toBottomOf="@+id/controls_row"
+                app:layout_constraintEnd_toEndOf="@+id/controls_row"
+                app:layout_constraintStart_toStartOf="@+id/controls_row"
+                app:layout_constraintTop_toTopOf="@+id/controls_row" />
+
+            <com.google.android.material.textview.MaterialTextView
+                android:id="@+id/sleep_timer_remaining_time"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="12dp"
+                android:textAppearance="@style/TextAppearance.Material3.BodyMedium"
+                android:textColor="@color/player_sheet_text_main"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/secondary_controls_row"
+                tools:text="15:00" />
+
+        </androidx.constraintlayout.widget.ConstraintLayout>
+    </ScrollView>
+
+</LinearLayout>

app/src/main/res/layout/activity_main.xml

@@ -4,6 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="?android:attr/colorBackground"
     android:fitsSystemWindows="true"
     tools:context=".MainActivity">
 
@@ -29,4 +30,49 @@
         app:layout_constraintTop_toBottomOf="@+id/main_toolbar"
         app:navGraph="@navigation/nav_graph_main" />
 
+    <!-- SPLASH / LOADING SCREEN -->
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/loading_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/splashBackgroundColor"
+        android:elevation="10dp"
+        android:visibility="visible">
+
+        <ImageView
+            android:id="@+id/loading_logo"
+            android:layout_width="160dp"
+            android:layout_height="160dp"
+            android:contentDescription="@string/icon_launcher"
+            android:src="@mipmap/ic_launcher"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_bias="0.4" />
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="24dp"
+            android:text="@string/loading"
+            android:textAppearance="@style/TextAppearance.Material3.HeadlineSmall"
+            android:textColor="@color/default_neutral_white"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/loading_logo" />
+
+        <ProgressBar
+            style="?android:attr/progressBarStyleHorizontal"
+            android:layout_width="200dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:indeterminate="true"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/loading_logo"
+            android:visibility="invisible" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/card_add_new_station.xml

@@ -12,6 +12,8 @@
         android:layout_marginStart="8dp"
         android:layout_marginTop="10dp"
         android:layout_marginBottom="24dp"
+        android:focusable="true"
+        android:clickable="true"
         android:stateListAnimator="@null"
         app:backgroundTint="@color/list_card_background"
         app:icon="@drawable/ic_add_24dp"
@@ -28,6 +30,8 @@
         android:layout_marginTop="10dp"
         android:layout_marginEnd="8dp"
         android:layout_marginBottom="24dp"
+        android:focusable="true"
+        android:clickable="true"
         android:stateListAnimator="@null"
         app:backgroundTint="@color/list_card_background"
         app:icon="@drawable/ic_settings_24dp"

app/src/main/res/layout/dialog_theme_selection.xml

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="16dp">
+
+    <TextView
+        android:id="@+id/dialog_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/pref_theme_selection_title"
+        android:textSize="18sp"
+        android:textStyle="bold"
+        android:paddingBottom="12dp" />
+
+    <RadioGroup
+        android:id="@+id/theme_radio_group"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <RadioButton
+            android:id="@+id/radio_theme_follow_system"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/pref_theme_selection_mode_device_default"
+            android:textSize="16sp"
+            android:padding="8dp"/>
+
+        <RadioButton
+            android:id="@+id/radio_theme_light"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/pref_theme_selection_mode_light"
+            android:textSize="16sp"
+            android:padding="8dp"/>
+
+        <RadioButton
+            android:id="@+id/radio_theme_dark"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/pref_theme_selection_mode_dark"
+            android:textSize="16sp"
+            android:padding="8dp"/>
+
+    </RadioGroup>
+
+</LinearLayout>

app/src/main/res/values-da/strings.xml

@@ -65,7 +65,7 @@
     <string name="pref_edit_station_title">Rediger station</string>
     <string name="pref_general_title">Generelt</string>
     <string name="pref_license_title">Denne app er open source</string>
-    <string name="pref_license_summary">Licenseret under MIT-licensen</string>
+    <string name="pref_license_summary">Licenseret under GPLv3-licensen</string>
     <string name="pref_links_title">Links</string>
     <string name="pref_m3u_export_summary">Gem stationer som M3U-playlister til brug i andre afspillere.</string>
     <string name="pref_m3u_export_title">Eksportér M3U-playliste</string>

app/src/main/res/values-de/strings.xml

@@ -51,6 +51,10 @@
     <string name="player_sheet_h2_station_metadata">Momentan läuft</string>
     <string name="player_sheet_h2_stream_url">Streaming-Adresse</string>
     <!-- Settings -->
+    <string name="pref_update_collection_title">Senderinformationnen aktualisieren</string>
+    <string name="pref_update_collection_summary">Die neueste Version aller Senderinformationen herunterladen.</string>
+    <string name="dialog_yes_no_message_update_collection">Die neueste Version aller Senderinformationen herunterladen?</string>
+    <string name="dialog_yes_no_positive_button_update_collection">Aktualisieren</string>
     <string name="pref_advanced_title">Erweitert</string>
     <string name="pref_app_version_summary">Version</string>
     <string name="pref_app_version_title">App-Version</string>
@@ -66,7 +70,7 @@
     <string name="pref_edit_station_title">Sender bearbeiten</string>
     <string name="pref_general_title">Allgemein</string>
     <string name="pref_license_title">Diese Anwendung ist Open Source</string>
-    <string name="pref_license_summary">Lizenziert unter der MIT License</string>
+    <string name="pref_license_summary">Lizenziert unter der GPLv3 License</string>
     <string name="pref_links_title">Links</string>
     <string name="pref_m3u_export_summary">Radiosender in einer M3U-Playlistdatei sichern, die in andere Player importiert werden können.</string>
     <string name="pref_m3u_export_title">M3U-Playlist exportieren</string>

app/src/main/res/values-el/strings.xml

@@ -63,7 +63,7 @@
     <string name="pref_edit_station_title">Επεξεργασία Σταθμών</string>
     <string name="pref_general_title">Γενικές ρυθμίσεις</string>
     <string name="pref_license_title">Αυτή η εφαρμογή είναι ανοικτού κώδικα</string>
-    <string name="pref_license_summary">Αδειοδότηση με άδεια MIT</string>
+    <string name="pref_license_summary">Αδειοδότηση με άδεια GPLv3</string>
     <string name="pref_links_title">Σύνδεσμοι</string>
     <string name="pref_m3u_export_summary">Αποθηκεύστε τους ραδιοφωνικούς σας σταθμούς σε ένα αρχείο λίστας αναπαραγωγής M3U που μπορεί να εισαχθεί σε άλλους αναπαραγωγούς.</string>
     <string name="pref_m3u_export_title">Εξαγωγή M3U</string>

app/src/main/res/values-fr/strings.xml

@@ -65,7 +65,7 @@
     <string name="pref_edit_station_title">Modifier la station</string>
     <string name="pref_general_title">Général</string>
     <string name="pref_license_title">Cette application est Open Source</string>
-    <string name="pref_license_summary">Sous licence MIT</string>
+    <string name="pref_license_summary">Sous licence GPLv3</string>
     <string name="pref_links_title">Liens</string>
     <string name="pref_m3u_export_summary">Enregistrez les stations dans un fichier de playlist M3U pouvant être importé dans dautres lecteurs.</string>
     <string name="pref_m3u_export_title">Exporter la playlist M3U</string>

app/src/main/res/values-ja/strings.xml

@@ -65,7 +65,7 @@
     <string name="pref_edit_station_title">局を編集</string>
     <string name="pref_general_title">一般</string>
     <string name="pref_license_title">このアプリはオープンソースです</string>
-    <string name="pref_license_summary">MITライセンスで提供されています</string>
+    <string name="pref_license_summary">GPLv3ライセンスで提供されています</string>
     <string name="pref_links_title">リンク</string>
     <string name="pref_m3u_export_summary">ラジオ局をM3Uプレイリストとして保存し、他のプレイヤーにインポートできます。</string>
     <string name="pref_m3u_export_title">M3Uプレイリストをエクスポート</string>

app/src/main/res/values-night-v31/colors.xml

@@ -32,4 +32,5 @@
     <color name="player_sheet_text_main">@android:color/system_neutral1_50</color>
     <color name="player_sheet_icon">@android:color/system_neutral1_50</color>
 
+    <color name="cardview_reordering">@android:color/system_accent1_100</color>
 </resources>

app/src/main/res/values-night-v31/styles.xml

@@ -11,6 +11,9 @@
         <item name="colorOnSurfaceVariant">@android:color/system_accent1_100</item>
         <item name="android:colorBackground">@android:color/system_neutral1_900</item>
         <item name="android:textColorHighlight">@android:color/system_accent1_500</item>
+        <item name="colorControlHighlight">#33FFFFFF</item>
+        <item name="android:colorControlHighlight">#33FFFFFF</item>
+        <item name="android:colorFocusedHighlight">#80FFFFFF</item>
 
         <!-- Do not use primary colored elevation overlays to present a visual hierarchy - TOO COLORFUL  -->
         <item name="elevationOverlayEnabled">false</item>
@@ -28,9 +31,6 @@
         <!-- Don't show light status bar -->
         <item name="android:statusBarColor">@android:color/transparent</item>
 
-        <!-- Set Navigation Bar color -->
-        <item name="android:navigationBarColor">@color/player_sheet_background</item>
-
         <!-- Set splash screen icon background color -->
         <item name="android:windowSplashScreenIconBackgroundColor">@color/splashBackgroundColor</item>
     </style>
@@ -39,6 +39,7 @@
         <item name="colorSurface">@color/player_sheet_background</item>
         <item name="materialAlertDialogBodyTextStyle">@style/TextAppearance.MaterialComponents.Body1</item>
         <item name="android:backgroundDimAmount">0.64</item>
+        <item name="colorControlActivated">#FFDAE2FF</item>
     </style>
 
     <style name="ThemeOverlay.App.TimePicker" parent="ThemeOverlay.MaterialComponents.TimePicker">
@@ -49,5 +50,12 @@
         <item name="android:background">@color/player_sheet_background</item>
         <item name="dialogCornerRadius">28dp</item>
         <item name="checkedTextViewStyle">@style/AlertDialog.TextColor</item>
+        <item name="colorControlActivated">#FFDAE2FF</item>
+        <item name="colorControlHighlight">#33FFFFFF</item>
+        <item name="android:colorFocusedHighlight">#80FFFFFF</item>
+    </style>
+
+    <style name="AlertDialog.TextColor" parent="@style/TextAppearance.MaterialComponents.Body1">
+        <item name="android:textColor">?attr/colorControlNormal</item>
     </style>
 </resources>

app/src/main/res/values-night/colors.xml

@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <resources>
     <!-- NIGHT THEME COLORS -->
 
@@ -32,4 +31,5 @@
     <color name="player_sheet_text_main">#FFFFFFFF</color>
     <color name="player_sheet_icon">#FFFFFFFF</color>
 
+    <color name="cardview_reordering">#FFDAE2FF</color>
 </resources>

app/src/main/res/values-night/styles.xml

@@ -7,6 +7,9 @@
         <item name="colorAccent">#FFDAE2FF</item>
         <item name="colorOnPrimary">#FF182E60</item>
         <item name="android:textColorHighlight">#FF495D92</item>
+        <item name="colorControlHighlight">#33FFFFFF</item>
+        <item name="android:colorControlHighlight">#33FFFFFF</item>
+        <item name="android:colorFocusedHighlight">#80FFFFFF</item>
 
         <!-- Do not use primary colored elevation overlays to present a visual hierarchy - TOO COLORFUL  -->
         <item name="elevationOverlayEnabled">false</item>

app/src/main/res/values-ru/strings.xml

@@ -63,7 +63,7 @@
     <string name="pref_edit_station_title">Редактировать станции</string>
     <string name="pref_general_title">Общие</string>
     <string name="pref_license_title">Это приложение с открытым исходным кодом</string>
-    <string name="pref_license_summary">Лицензировано под лицензией MIT</string>
+    <string name="pref_license_summary">Лицензировано под лицензией GPLv3</string>
     <string name="pref_links_title">Ссылки</string>
     <string name="pref_m3u_export_summary">Сохраните ваши радиостанции в файл плейлиста M3U, который можно импортировать в другие проигрыватели.</string>
     <string name="pref_m3u_export_title">Экспорт M3U</string>

app/src/main/res/values-television/styles.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="SplashTheme" parent="Theme.Material3.DayNight.NoActionBar">
+        <item name="android:windowBackground">@drawable/splash_screen</item>
+        <item name="android:statusBarColor">@color/splashBackgroundColor</item>
+    </style>
+</resources>

app/src/main/res/values-uk/strings.xml

@@ -63,7 +63,7 @@
     <string name="pref_edit_station_title">Редагувати станції</string>
     <string name="pref_general_title">Загальні</string>
     <string name="pref_license_title">Цей застосунок має відкритий початковий код</string>
-    <string name="pref_license_summary">На умовах ліцензії MIT</string>
+    <string name="pref_license_summary">На умовах ліцензії GPLv3</string>
     <string name="pref_links_title">Посилання</string>
     <string name="pref_m3u_export_summary">Збережіть свої радіостанції у файлі списку відтворення M3U, який можна імпортувати в інші програвачі.</string>
     <string name="pref_m3u_export_title">Експорт M3U</string>

app/src/main/res/values-v27/styles.xml

@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <style name="AppTheme" parent="Theme.Material3.DayNight.NoActionBar">
-        <!-- Set AppCompat’s colors -->
-        <item name="colorPrimary">#FF495D92</item>
-        <item name="colorAccent">#FF495D92</item>
-        <item name="android:textColorHighlight">#FF495D92</item>
-
-        <!-- Do not use primary colored elevation overlays to present a visual hierarchy - TOO COLORFUL  -->
-        <item name="elevationOverlayEnabled">false</item>
-
-        <!-- Switch Theming  -->
-        <item name="switchPreferenceCompatStyle">@style/Preference.SwitchPreferenceCompat.Material3</item>
-
-        <!-- Material Alert Dialog Theming -->
-        <item name="alertDialogTheme">@style/ThemeOverlay.App.AlertDialogTheme</item>
-
-        <!-- Use "light" Status Bar -->
-        <item name="android:windowLightStatusBar">true</item>
-        <item name="android:statusBarColor">@android:color/transparent</item>
-
-        <!-- Use "light" Navigation Bar -->
-        <item name="android:windowLightNavigationBar">true</item>
-    </style>
-</resources>

app/src/main/res/values-v31/colors.xml

@@ -37,4 +37,5 @@
     <color name="default_neutral_medium_light">@android:color/system_neutral1_300</color>
     <color name="default_neutral_dark">@android:color/system_neutral1_600</color>
 
+    <color name="cardview_reordering">@android:color/system_accent1_900</color>
 </resources>

app/src/main/res/values-v31/styles.xml

@@ -11,6 +11,9 @@
         <item name="colorOnSurfaceVariant">@android:color/system_accent1_600</item>
         <item name="android:colorBackground">@android:color/system_neutral2_10</item>
         <item name="android:textColorHighlight">@android:color/system_accent1_200</item>
+        <item name="colorControlHighlight">#22000000</item>
+        <item name="android:colorControlHighlight">#22000000</item>
+        <item name="android:colorFocusedHighlight">#66000000</item>
 
         <!-- Do not use primary colored elevation overlays to present a visual hierarchy - TOO COLORFUL  -->
         <item name="elevationOverlayEnabled">false</item>
@@ -38,6 +41,8 @@
         <item name="colorSurface">@color/list_card_background</item>
         <item name="materialAlertDialogBodyTextStyle">@style/TextAppearance.MaterialComponents.Body1</item>
         <item name="android:backgroundDimAmount">0.64</item>
+        <item name="colorControlHighlight">#22000000</item>
+        <item name="android:colorFocusedHighlight">#66000000</item>
     </style>
 
     <style name="ThemeOverlay.App.TimePicker" parent="ThemeOverlay.MaterialComponents.TimePicker">

app/src/main/res/values/colors.xml

@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <resources>
     <!-- DAY THEME COLORS -->
 
@@ -16,6 +15,7 @@
     <!-- list -->
     <color name="list_card_background">#FFFEFBFF</color>
     <color name="list_card_stroke_background">#FFC0C6DD</color>
+    <color name="list_card_stroke_focused">#FF495D92</color>
     <color name="list_card_cover_background">#FFE7E0EC</color>
     <color name="list_card_delete_background">#FFB3261E</color>
     <color name="list_card_delete_icon">#FFFFFFFF</color>
@@ -39,5 +39,5 @@
     <color name="default_neutral_85percent">#D9313033</color>
 
     <color name="splashBackgroundColor">#FF1D3E66</color>
-
+    <color name="cardview_reordering">#161C2C</color>
 </resources>

app/src/main/res/values/strings.xml

@@ -59,6 +59,10 @@
     <string name="player_sheet_h2_stream_url">Streaming link</string>
 
     <!-- Settings -->
+    <string name="pref_update_collection_title">Update Stations</string>
+    <string name="pref_update_collection_summary">Download latest version of all station.</string>
+    <string name="dialog_yes_no_message_update_collection">Download latest version of all station?</string>
+    <string name="dialog_yes_no_positive_button_update_collection">Update</string>
     <string name="pref_advanced_title">Advanced</string>
     <string name="pref_app_version_summary">Version</string>
     <string name="pref_app_version_title">App Version</string>
@@ -76,7 +80,7 @@
     <string name="pref_github_title" translatable="false">GitHub</string>
     <string name="pref_github_summary" translatable="false">github.com/michatec/Radio</string>
     <string name="pref_license_title">This application is open source</string>
-    <string name="pref_license_summary">Licensed under the MIT License</string>
+    <string name="pref_license_summary">Licensed under the GPLv3 License</string>
     <string name="pref_links_title">Links</string>
     <string name="pref_m3u_export_summary">Save your radio stations to an M3U playlist file that can be imported into other players.</string>
     <string name="pref_m3u_export_title">Export M3U</string>
@@ -136,4 +140,8 @@
     <string name="snackbar_url_app_home_page" translatable="false">https://github.com/michatec/Radio/releases/latest</string>
     <string name="snackbar_github_update_check_url" translatable="false">https://api.github.com/repos/michatec/Radio/releases/latest</string>
     <string name="app_name" translatable="false">Radio</string>
+    <string name="icon_launcher" translatable="false">Icon launcher.</string>
+
+    <!-- Extras -->
+    <string name="loading">Loading...</string>
 </resources>

app/src/main/res/values/styles.xml

@@ -2,29 +2,24 @@
 <resources>
 
     <style name="AppTheme" parent="Theme.Material3.DayNight.NoActionBar">
-        <!-- Set AppCompat’s colors -->
         <item name="colorPrimary">#FF495D92</item>
         <item name="colorAccent">#FF495D92</item>
         <item name="android:textColorHighlight">#FF495D92</item>
-
-        <!-- Do not use primary colored elevation overlays to present a visual hierarchy - TOO COLORFUL  -->
         <item name="elevationOverlayEnabled">false</item>
-
+        <item name="colorControlActivated">#FFDAE2FF</item>
-        <!-- Switch Theming  -->
         <item name="switchPreferenceCompatStyle">@style/Preference.SwitchPreferenceCompat.Material3</item>
-
-        <!-- Material Alert Dialog Theming -->
         <item name="materialAlertDialogTheme">@style/ThemeOverlay.App.MaterialAlertDialog</item>
         <item name="alertDialogTheme">@style/ThemeOverlay.App.AlertDialogTheme</item>
-
-        <!-- Material Time Picker Theming -->
         <item name="materialTimePickerTheme">@style/ThemeOverlay.App.TimePicker</item>
-
-        <!-- Use "light" Status Bar -->
         <item name="android:windowLightStatusBar">true</item>
         <item name="android:statusBarColor">@android:color/transparent</item>
+        <item name="colorControlHighlight">#80000000</item>
+        <item name="android:colorControlHighlight">#80000000</item>
+        <item name="android:colorFocusedHighlight">#FF333333</item>
     </style>
 
+    <style name="SplashTheme" parent="AppTheme" />
+
     <style name="Preference.SwitchPreferenceCompat.Material3" parent="@style/Preference.SwitchPreferenceCompat.Material">
         <item name="widgetLayout">@layout/preference_switch</item>
     </style>
@@ -38,7 +33,13 @@
     <style name="ThemeOverlay.App.AlertDialogTheme" parent="@style/ThemeOverlay.Material3.MaterialAlertDialog">
         <item name="android:background">@color/list_card_background</item>
         <item name="dialogCornerRadius">28dp</item>
-        <item name="checkedTextViewStyle">@style/AlertDialog.TextColor</item>
+        <!-- TV Fix: Explicitly set accent color for radio buttons/checkboxes -->
+        <item name="colorAccent">@color/icon_default</item>
+        <item name="colorControlActivated">@color/icon_default</item>
+        <item name="android:textColorPrimary">@color/text_default</item>
+        <item name="android:textColorSecondary">@color/text_lightweight</item>
+        <item name="colorControlHighlight">#80000000</item>
+        <item name="android:colorFocusedHighlight">#FF333333</item>
     </style>
 
     <style name="ThemeOverlay.App.TimePicker" parent="ThemeOverlay.MaterialComponents.TimePicker">
@@ -46,13 +47,16 @@
     </style>
 
     <style name="AlertDialog.TextColor" parent="@style/TextAppearance.MaterialComponents.Body1">
-        <item name="android:textColor">?attr/colorControlNormal</item>
+        <item name="android:textColor">@color/text_default</item>
     </style>
 
     <style name="App.Widget.Material3.CardView.Outlined" parent="@style/Widget.Material3.CardView.Outlined">
-        <item name="strokeColor">@color/list_card_stroke_background</item>
+        <item name="strokeColor">@color/selector_card_station_stroke</item>
-        <item name="strokeWidth">3dp</item>
+        <item name="strokeWidth">4dp</item>
         <item name="cardCornerRadius">24dp</item>
+        <item name="android:focusable">true</item>
+        <item name="android:clickable">true</item>
+        <item name="android:descendantFocusability">afterDescendants</item>
     </style>
 
     <style name="App.Widget.MaterialComponents.TextView" parent="@style/Widget.MaterialComponents.TextView">

build.gradle

@@ -1,9 +1,9 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 plugins {
-    id 'com.android.application' version '9.0.1' apply false
+    alias libs.plugins.android.application apply false
-    id 'com.android.library' version '9.0.1' apply false
+    alias libs.plugins.android.library apply false
-    id 'org.jetbrains.kotlin.android' version "2.3.10" apply false
+    alias libs.plugins.jetbrains.kotlin.android apply false
 }
 
 tasks.register('clean', Delete) {

gradle/libs.versions.toml

@@ -0,0 +1,42 @@
+[versions]
+activityKtx = "1.13.0"
+agp = "9.1.0"
+coreKtx = "1.18.0"
+freedroidwarn = "V1.10"
+gson = "2.13.2"
+kotlin = "2.3.20"
+leanback = "1.2.0"
+material = "1.13.0"
+material3 = "1.4.0"
+media = "1.7.1"
+media3 = "1.10.0"
+navigation = "2.9.7"
+paletteKtx = "1.0.0"
+preferenceKtx = "1.2.1"
+volley = "1.2.1"
+workRuntimeKtx = "2.11.2"
+
+[libraries]
+activity-ktx = { group = "androidx.activity", name = "activity-ktx", version.ref = "activityKtx" }
+core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+freedroidwarn = { group = "com.github.woheller69", name = "FreeDroidWarn", version.ref = "freedroidwarn" }
+gson = { group = "com.google.code.gson", name = "gson", version.ref = "gson" }
+leanback = { group = "androidx.leanback", name = "leanback", version.ref = "leanback" }
+material = { group = "com.google.android.material", name = "material", version.ref = "material" }
+material3 = { group = "androidx.compose.material3", name = "material3", version.ref = "material3" }
+media = { group = "androidx.media", name = "media", version.ref = "media" }
+media3-datasource-okhttp = { group = "androidx.media3", name = "media3-datasource-okhttp", version.ref = "media3" }
+media3-exoplayer = { group = "androidx.media3", name = "media3-exoplayer", version.ref = "media3" }
+media3-exoplayer-hls = { group = "androidx.media3", name = "media3-exoplayer-hls", version.ref = "media3" }
+media3-session = { group = "androidx.media3", name = "media3-session", version.ref = "media3" }
+navigation-fragment-ktx = { group = "androidx.navigation", name = "navigation-fragment-ktx", version.ref = "navigation" }
+navigation-ui-ktx = { group = "androidx.navigation", name = "navigation-ui-ktx", version.ref = "navigation" }
+palette-ktx = { group = "androidx.palette", name = "palette-ktx", version.ref = "paletteKtx" }
+preference-ktx = { group = "androidx.preference", name = "preference-ktx", version.ref = "preferenceKtx" }
+volley = { group = "com.android.volley", name = "volley", version.ref = "volley" }
+work-runtime-ktx = { group = "androidx.work", name = "work-runtime-ktx", version.ref = "workRuntimeKtx" }
+
+[plugins]
+android-application = { id = "com.android.application", version.ref = "agp" }
+android-library = { id = "com.android.library", version.ref = "agp" }
+jetbrains-kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -57,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/b631911858264c0b6e4d6603d677ff5218766cee/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.

settings.gradle

@@ -3,13 +3,19 @@ pluginManagement {
         google()
         mavenCentral()
         gradlePluginPortal()
+        maven { url 'https://jitpack.io' }
     }
 }
+
+plugins {
+    id 'org.gradle.toolchains.foojay-resolver-convention' version '1.0.0'
+}
 dependencyResolutionManagement {
     repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
     repositories {
         google()
         mavenCentral()
+        maven { url 'https://jitpack.io' }
     }
 }