Release version 0.19.5 (950)

Enable requestLegacyExternalStorage

.gitignore

@@ -10,3 +10,11 @@
 *~
 .weblate
 *.class
+
+# vscode / eclipse files
+*.classpath
+*.project
+*.settings
+bin/
+.vscode/
+*.code-workspace

.travis.yml

@@ -5,13 +5,13 @@ android:
   components:
     # The BuildTools version used by NewPipe
     - tools
-    - build-tools-28.0.3
+    - build-tools-29.0.3
 
     # The SDK version used to compile NewPipe
-    - android-28
+    - android-29
 
 before_install: 
-  - yes | sdkmanager "platforms;android-28"
+  - yes | sdkmanager "platforms;android-29"
 script: ./gradlew -Dorg.gradle.jvmargs=-Xmx1536m assembleDebug lintDebug testDebugUnitTest
 
 licenses:

app/build.gradle

@@ -5,16 +5,16 @@ apply plugin: 'kotlin-kapt'
 apply plugin: 'checkstyle'
 
 android {
-    compileSdkVersion 28
-    buildToolsVersion '28.0.3'
+    compileSdkVersion 29
+    buildToolsVersion '29.0.3'
 
     defaultConfig {
         applicationId "org.schabi.newpipe"
         resValue "string", "app_name", "NewPipe"
         minSdkVersion 19
-        targetSdkVersion 28
-        versionCode 930
-        versionName "0.19.3"
+        targetSdkVersion 29
+        versionCode 950
+        versionName "0.19.5"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
@@ -66,6 +66,7 @@ android {
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
+        encoding 'utf-8'
     }
 
     // Required and used only by groupie
@@ -79,22 +80,22 @@ android {
 }
 
 ext {
-    androidxLibVersion = '1.0.0'
-    exoPlayerLibVersion = '2.10.8'
-    roomDbLibVersion = '2.1.0'
-    leakCanaryLibVersion = '1.5.4' //1.6.1
-    okHttpLibVersion = '3.12.6'
-    icepickLibVersion = '3.2.0'
-    stethoLibVersion = '1.5.0'
-    markwonVersion = '4.2.1'
-    checkstyleVersion = '8.31'
+    icepickVersion = '3.2.0'
+    checkstyleVersion = '8.32'
+    stethoVersion = '1.5.1'
+    leakCanaryVersion = '2.2'
+    exoPlayerVersion = '2.11.4'
+    androidxLifecycleVersion = '2.2.0'
+    androidxRoomVersion = '2.2.5'
+    groupieVersion = '2.8.0'
+    markwonVersion = '4.3.1'
 }
 
 checkstyle {
     configFile rootProject.file('checkstyle.xml')
     ignoreFailures false
     showViolations true
-    toolVersion = "${checkstyleVersion}"
+    toolVersion = checkstyleVersion
 }
 
 task runCheckstyle(type: Checkstyle) {
@@ -116,88 +117,96 @@ task runCheckstyle(type: Checkstyle) {
     }
 }
 
-tasks.withType(Checkstyle).each {
-    checkstyleTask -> checkstyleTask.doLast {
-        reports.all { report ->
-            def outputFile = report.destination
-            if (outputFile.exists() && outputFile.text.contains("severity=\"error\"")) {
-                throw new GradleException("There were checkstyle errors! For more info check $outputFile")
-            }
-        }
-    }
+configurations {
+    ktlint
+}
+
+task runKtlint(type: JavaExec) {
+    main = "com.pinterest.ktlint.Main"
+    classpath = configurations.ktlint
+    args "src/**/*.kt"
+}
+
+task formatKtlint(type: JavaExec) {
+    main = "com.pinterest.ktlint.Main"
+    classpath = configurations.ktlint
+    args "-F", "src/**/*.kt"
 }
 
 afterEvaluate {
-    preDebugBuild.dependsOn runCheckstyle
+    preDebugBuild.dependsOn runCheckstyle, runKtlint
 }
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 
+    implementation "frankiesardo:icepick:${icepickVersion}"
+    kapt "frankiesardo:icepick-processor:${icepickVersion}"
+
     debugImplementation "com.puppycrawl.tools:checkstyle:${checkstyleVersion}"
+    ktlint "com.pinterest:ktlint:0.35.0"
 
-    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
-    androidTestImplementation "android.arch.persistence.room:testing:1.1.1"
-    androidTestImplementation('androidx.test.espresso:espresso-core:3.1.0', {
+    debugImplementation "com.facebook.stetho:stetho:${stethoVersion}"
+    debugImplementation "com.facebook.stetho:stetho-okhttp3:${stethoVersion}"
+
+    debugImplementation "com.squareup.leakcanary:leakcanary-android:${leakCanaryVersion}"
+    implementation "com.squareup.leakcanary:leakcanary-object-watcher-android:${leakCanaryVersion}"
+
+    debugImplementation "androidx.multidex:multidex:2.0.1"
+
+    testImplementation 'junit:junit:4.13'
+    testImplementation 'org.mockito:mockito-core:3.3.3'
+
+    androidTestImplementation "androidx.test.ext:junit:1.1.1"
+    androidTestImplementation "androidx.room:room-testing:${androidxRoomVersion}"
+    androidTestImplementation "androidx.test.espresso:espresso-core:3.2.0", {
         exclude module: 'support-annotations'
-    })
+    }
 
-    implementation 'com.github.TeamNewPipe:NewPipeExtractor:fc3a69ed54b393e3e4e3a78ae6e89edc1d47c45a'
-    testImplementation 'junit:junit:4.12'
-    testImplementation 'org.mockito:mockito-core:2.23.0'
+    implementation 'com.github.TeamNewPipe:NewPipeExtractor:bda83fe6a5b9a8a0751669fbc444fa49d72d0d2f'
 
-    implementation 'androidx.appcompat:appcompat:1.1.0'
-    implementation "androidx.legacy:legacy-support-v4:${androidxLibVersion}"
-    implementation "com.google.android.material:material:${androidxLibVersion}"
-    implementation "androidx.recyclerview:recyclerview:${androidxLibVersion}"
-    implementation "androidx.legacy:legacy-preference-v14:${androidxLibVersion}"
-    implementation "androidx.cardview:cardview:${androidxLibVersion}"
-    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation "com.github.TeamNewPipe:nanojson:1d9e1aea9049fc9f85e68b43ba39fe7be1c1f751"
+    implementation "org.jsoup:jsoup:1.13.1"
 
-    implementation 'com.xwray:groupie:2.7.0'
-    implementation 'com.xwray:groupie-kotlin-android-extensions:2.7.0'
+    implementation "com.squareup.okhttp3:okhttp:3.12.11"
 
-    implementation 'androidx.lifecycle:lifecycle-livedata:2.0.0'
-    implementation 'androidx.lifecycle:lifecycle-viewmodel:2.0.0'
-    implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
+    implementation "com.google.android.exoplayer:exoplayer:${exoPlayerVersion}"
+    implementation "com.google.android.exoplayer:extension-mediasession:${exoPlayerVersion}"
 
-    // Originally in NewPipeExtractor
-    implementation 'com.github.TeamNewPipe:nanojson:1d9e1aea9049fc9f85e68b43ba39fe7be1c1f751'
-    implementation 'org.jsoup:jsoup:1.9.2'
+    implementation "com.google.android.material:material:1.1.0"
 
-    implementation 'ch.acra:acra:4.9.2' //4.11
+    implementation "androidx.appcompat:appcompat:1.1.0"
+    implementation "androidx.preference:preference:1.1.1"
+    implementation "androidx.recyclerview:recyclerview:1.1.0"
+    implementation "androidx.cardview:cardview:1.0.0"
+    implementation "androidx.constraintlayout:constraintlayout:1.1.3"
 
-    implementation 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
-    implementation 'de.hdodenhof:circleimageview:2.2.0'
-    implementation 'com.nononsenseapps:filepicker:4.2.1'
+    implementation "androidx.lifecycle:lifecycle-livedata:${androidxLifecycleVersion}"
+    implementation "androidx.lifecycle:lifecycle-viewmodel:${androidxLifecycleVersion}"
+    implementation "androidx.lifecycle:lifecycle-extensions:${androidxLifecycleVersion}"
 
-    implementation "com.google.android.exoplayer:exoplayer:${exoPlayerLibVersion}"
-    implementation "com.google.android.exoplayer:extension-mediasession:${exoPlayerLibVersion}"
+    implementation "androidx.room:room-runtime:${androidxRoomVersion}"
+    implementation "androidx.room:room-rxjava2:${androidxRoomVersion}"
+    kapt "androidx.room:room-compiler:${androidxRoomVersion}"
 
-    debugImplementation "com.facebook.stetho:stetho:${stethoLibVersion}"
-    debugImplementation "com.facebook.stetho:stetho-urlconnection:${stethoLibVersion}"
-    debugImplementation 'androidx.multidex:multidex:2.0.1'
+    implementation "com.xwray:groupie:${groupieVersion}"
+    implementation "com.xwray:groupie-kotlin-android-extensions:${groupieVersion}"
 
-    implementation 'io.reactivex.rxjava2:rxjava:2.2.2'
-    implementation 'io.reactivex.rxjava2:rxandroid:2.1.0'
-    implementation 'com.jakewharton.rxbinding2:rxbinding:2.1.1'
-    implementation 'org.ocpsoft.prettytime:prettytime:4.0.3.Final'
-
-    implementation "androidx.room:room-runtime:${roomDbLibVersion}"
-    implementation "androidx.room:room-rxjava2:${roomDbLibVersion}"
-    kapt "androidx.room:room-compiler:${roomDbLibVersion}"
-
-    implementation "frankiesardo:icepick:${icepickLibVersion}"
-    kapt "frankiesardo:icepick-processor:${icepickLibVersion}"
-
-    debugImplementation "com.squareup.leakcanary:leakcanary-android:${leakCanaryLibVersion}"
-    releaseImplementation "com.squareup.leakcanary:leakcanary-android-no-op:${leakCanaryLibVersion}"
-
-    implementation "com.squareup.okhttp3:okhttp:${okHttpLibVersion}"
-    debugImplementation "com.facebook.stetho:stetho-okhttp3:${stethoLibVersion}"
+    implementation "de.hdodenhof:circleimageview:3.1.0"
+    implementation "com.nostra13.universalimageloader:universal-image-loader:1.9.5"
 
     implementation "io.noties.markwon:core:${markwonVersion}"
     implementation "io.noties.markwon:linkify:${markwonVersion}"
+
+    implementation "com.nononsenseapps:filepicker:4.2.1"
+
+    implementation "ch.acra:acra-core:5.5.0"
+
+    implementation "io.reactivex.rxjava2:rxjava:2.2.19"
+    implementation "io.reactivex.rxjava2:rxandroid:2.1.1"
+    implementation "com.jakewharton.rxbinding2:rxbinding:2.2.0"
+
+    implementation "org.ocpsoft.prettytime:prettytime:4.0.5.Final"
 }
 
 static String getGitWorkingBranch() {

app/src/androidTest/java/org/schabi/newpipe/database/AppDatabaseTest.kt

@@ -116,4 +116,4 @@ class AppDatabaseTest {
         testHelper.closeWhenFinished(database)
         return database
     }
-}
+}

app/src/debug/java/org/schabi/newpipe/DebugApp.java

@@ -1,107 +0,0 @@
-package org.schabi.newpipe;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
-
-import androidx.annotation.NonNull;
-import androidx.multidex.MultiDex;
-
-import com.facebook.stetho.Stetho;
-import com.facebook.stetho.okhttp3.StethoInterceptor;
-import com.squareup.leakcanary.AndroidHeapDumper;
-import com.squareup.leakcanary.DefaultLeakDirectoryProvider;
-import com.squareup.leakcanary.HeapDumper;
-import com.squareup.leakcanary.LeakCanary;
-import com.squareup.leakcanary.LeakDirectoryProvider;
-import com.squareup.leakcanary.RefWatcher;
-
-import org.schabi.newpipe.extractor.downloader.Downloader;
-
-import java.io.File;
-import java.util.concurrent.TimeUnit;
-
-import okhttp3.OkHttpClient;
-
-public class DebugApp extends App {
-    private static final String TAG = DebugApp.class.toString();
-
-    @Override
-    protected void attachBaseContext(final Context base) {
-        super.attachBaseContext(base);
-        MultiDex.install(this);
-    }
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        initStetho();
-    }
-
-    @Override
-    protected Downloader getDownloader() {
-        DownloaderImpl downloader = DownloaderImpl.init(new OkHttpClient.Builder()
-                .addNetworkInterceptor(new StethoInterceptor()));
-        setCookiesToDownloader(downloader);
-        return downloader;
-    }
-
-    private void initStetho() {
-        // Create an InitializerBuilder
-        Stetho.InitializerBuilder initializerBuilder =
-                Stetho.newInitializerBuilder(this);
-
-        // Enable Chrome DevTools
-        initializerBuilder.enableWebKitInspector(
-                Stetho.defaultInspectorModulesProvider(this)
-        );
-
-        // Enable command line interface
-        initializerBuilder.enableDumpapp(
-                Stetho.defaultDumperPluginsProvider(getApplicationContext())
-        );
-
-        // Use the InitializerBuilder to generate an Initializer
-        Stetho.Initializer initializer = initializerBuilder.build();
-
-        // Initialize Stetho with the Initializer
-        Stetho.initialize(initializer);
-    }
-
-    @Override
-    protected boolean isDisposedRxExceptionsReported() {
-        return PreferenceManager.getDefaultSharedPreferences(this)
-                .getBoolean(getString(R.string.allow_disposed_exceptions_key), false);
-    }
-
-    @Override
-    protected RefWatcher installLeakCanary() {
-        return LeakCanary.refWatcher(this)
-                .heapDumper(new ToggleableHeapDumper(this))
-                // give each object 10 seconds to be gc'ed, before leak canary gets nosy on it
-                .watchDelay(10, TimeUnit.SECONDS)
-                .buildAndInstall();
-    }
-
-    public static class ToggleableHeapDumper implements HeapDumper {
-        private final HeapDumper dumper;
-        private final SharedPreferences preferences;
-        private final String dumpingAllowanceKey;
-
-        ToggleableHeapDumper(@NonNull final Context context) {
-            LeakDirectoryProvider leakDirectoryProvider = new DefaultLeakDirectoryProvider(context);
-            this.dumper = new AndroidHeapDumper(context, leakDirectoryProvider);
-            this.preferences = PreferenceManager.getDefaultSharedPreferences(context);
-            this.dumpingAllowanceKey = context.getString(R.string.allow_heap_dumping_key);
-        }
-
-        private boolean isDumpingAllowed() {
-            return preferences.getBoolean(dumpingAllowanceKey, false);
-        }
-
-        @Override
-        public File dumpHeap() {
-            return isDumpingAllowed() ? dumper.dumpHeap() : HeapDumper.RETRY_LATER;
-        }
-    }
-}

app/src/debug/java/org/schabi/newpipe/DebugApp.kt

@@ -0,0 +1,59 @@
+package org.schabi.newpipe
+
+import android.content.Context
+import androidx.multidex.MultiDex
+import androidx.preference.PreferenceManager
+import com.facebook.stetho.Stetho
+import com.facebook.stetho.okhttp3.StethoInterceptor
+import leakcanary.AppWatcher
+import leakcanary.LeakCanary
+import okhttp3.OkHttpClient
+import org.schabi.newpipe.extractor.downloader.Downloader
+
+class DebugApp : App() {
+    override fun attachBaseContext(base: Context) {
+        super.attachBaseContext(base)
+        MultiDex.install(this)
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        initStetho()
+
+        // Give each object 10 seconds to be GC'ed, before LeakCanary gets nosy on it
+        AppWatcher.config = AppWatcher.config.copy(watchDurationMillis = 10000)
+        LeakCanary.config = LeakCanary.config.copy(dumpHeap = PreferenceManager
+                .getDefaultSharedPreferences(this).getBoolean(getString(
+                        R.string.allow_heap_dumping_key), false))
+    }
+
+    override fun getDownloader(): Downloader {
+        val downloader = DownloaderImpl.init(OkHttpClient.Builder()
+                .addNetworkInterceptor(StethoInterceptor()))
+        setCookiesToDownloader(downloader)
+        return downloader
+    }
+
+    private fun initStetho() {
+        // Create an InitializerBuilder
+        val initializerBuilder = Stetho.newInitializerBuilder(this)
+
+        // Enable Chrome DevTools
+        initializerBuilder.enableWebKitInspector(Stetho.defaultInspectorModulesProvider(this))
+
+        // Enable command line interface
+        initializerBuilder.enableDumpapp(
+                Stetho.defaultDumperPluginsProvider(applicationContext))
+
+        // Use the InitializerBuilder to generate an Initializer
+        val initializer = initializerBuilder.build()
+
+        // Initialize Stetho with the Initializer
+        Stetho.initialize(initializer)
+    }
+
+    override fun isDisposedRxExceptionsReported(): Boolean {
+        return PreferenceManager.getDefaultSharedPreferences(this)
+                .getBoolean(getString(R.string.allow_disposed_exceptions_key), false)
+    }
+}

app/src/main/AndroidManifest.xml

@@ -20,6 +20,7 @@
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:logo="@mipmap/ic_launcher"
+        android:requestLegacyExternalStorage="true"
         android:theme="@style/OpeningTheme"
         tools:ignore="AllowBackup">
         <activity

app/src/main/java/org/schabi/newpipe/App.java

@@ -9,19 +9,16 @@ import android.content.SharedPreferences;
 import android.os.Build;
 import android.util.Log;
 
-import androidx.annotation.Nullable;
 import androidx.preference.PreferenceManager;
 
 import com.nostra13.universalimageloader.cache.memory.impl.LRULimitedMemoryCache;
 import com.nostra13.universalimageloader.core.ImageLoader;
 import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
-import com.squareup.leakcanary.LeakCanary;
-import com.squareup.leakcanary.RefWatcher;
 
 import org.acra.ACRA;
-import org.acra.config.ACRAConfiguration;
 import org.acra.config.ACRAConfigurationException;
-import org.acra.config.ConfigurationBuilder;
+import org.acra.config.CoreConfiguration;
+import org.acra.config.CoreConfigurationBuilder;
 import org.acra.sender.ReportSenderFactory;
 import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.extractor.downloader.Downloader;
@@ -72,13 +69,6 @@ public class App extends Application {
     private static final Class<? extends ReportSenderFactory>[]
             REPORT_SENDER_FACTORY_CLASSES = new Class[]{AcraReportSenderFactory.class};
     private static App app;
-    private RefWatcher refWatcher;
-
-    @Nullable
-    public static RefWatcher getRefWatcher(final Context context) {
-        final App application = (App) context.getApplicationContext();
-        return application.refWatcher;
-    }
 
     public static App getApp() {
         return app;
@@ -95,13 +85,6 @@ public class App extends Application {
     public void onCreate() {
         super.onCreate();
 
-        if (LeakCanary.isInAnalyzerProcess(this)) {
-            // This process is dedicated to LeakCanary for heap analysis.
-            // You should not init your app in this process.
-            return;
-        }
-        refWatcher = installLeakCanary();
-
         app = this;
 
         // Initialize settings first because others inits can use its values
@@ -136,7 +119,8 @@ public class App extends Application {
         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(
                 getApplicationContext());
         final String key = getApplicationContext().getString(R.string.recaptcha_cookies_key);
-        downloader.setCookies(prefs.getString(key, ""));
+        downloader.setCookie(ReCaptchaActivity.RECAPTCHA_COOKIES_KEY, prefs.getString(key, ""));
+        downloader.updateYoutubeRestrictedModeCookies(getApplicationContext());
     }
 
     private void configureRxJavaErrorHandler() {
@@ -218,7 +202,7 @@ public class App extends Application {
 
     private void initACRA() {
         try {
-            final ACRAConfiguration acraConfig = new ConfigurationBuilder(this)
+            final CoreConfiguration acraConfig = new CoreConfigurationBuilder(this)
                     .setReportSenderFactoryClasses(REPORT_SENDER_FACTORY_CLASSES)
                     .setBuildConfigClass(BuildConfig.class)
                     .build();
@@ -279,10 +263,6 @@ public class App extends Application {
         appUpdateNotificationManager.createNotificationChannel(appUpdateChannel);
     }
 
-    protected RefWatcher installLeakCanary() {
-        return RefWatcher.DISABLED;
-    }
-
     protected boolean isDisposedRxExceptionsReported() {
         return false;
     }

app/src/main/java/org/schabi/newpipe/BaseFragment.java

@@ -11,10 +11,10 @@ import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 
 import com.nostra13.universalimageloader.core.ImageLoader;
-import com.squareup.leakcanary.RefWatcher;
 
 import icepick.Icepick;
 import icepick.State;
+import leakcanary.AppWatcher;
 
 public abstract class BaseFragment extends Fragment {
     public static final ImageLoader IMAGE_LOADER = ImageLoader.getInstance();
@@ -78,16 +78,14 @@ public abstract class BaseFragment extends Fragment {
         Icepick.saveInstanceState(this, outState);
     }
 
-    protected void onRestoreInstanceState(@NonNull final Bundle savedInstanceState) { }
+    protected void onRestoreInstanceState(@NonNull final Bundle savedInstanceState) {
+    }
 
     @Override
     public void onDestroy() {
         super.onDestroy();
 
-        RefWatcher refWatcher = App.getRefWatcher(getActivity());
-        if (refWatcher != null) {
-            refWatcher.watch(this);
-        }
+        AppWatcher.INSTANCE.getObjectWatcher().watch(this);
     }
 
     @Override
@@ -100,9 +98,11 @@ public abstract class BaseFragment extends Fragment {
     // Init
     //////////////////////////////////////////////////////////////////////////*/
 
-    protected void initViews(final View rootView, final Bundle savedInstanceState) { }
+    protected void initViews(final View rootView, final Bundle savedInstanceState) {
+    }
 
-    protected void initListeners() { }
+    protected void initListeners() {
+    }
 
     /*//////////////////////////////////////////////////////////////////////////
     // Utils

app/src/main/java/org/schabi/newpipe/DownloaderImpl.java

@@ -1,7 +1,8 @@
 package org.schabi.newpipe;
 
+import android.content.Context;
 import android.os.Build;
-import android.text.TextUtils;
+import android.preference.PreferenceManager;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -10,6 +11,8 @@ import org.schabi.newpipe.extractor.downloader.Downloader;
 import org.schabi.newpipe.extractor.downloader.Request;
 import org.schabi.newpipe.extractor.downloader.Response;
 import org.schabi.newpipe.extractor.exceptions.ReCaptchaException;
+import org.schabi.newpipe.util.CookieUtils;
+import org.schabi.newpipe.util.InfoCache;
 import org.schabi.newpipe.util.TLSSocketFactoryCompat;
 
 import java.io.IOException;
@@ -20,6 +23,7 @@ import java.security.KeyStoreException;
 import java.security.NoSuchAlgorithmException;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
@@ -40,9 +44,13 @@ import static org.schabi.newpipe.MainActivity.DEBUG;
 public final class DownloaderImpl extends Downloader {
     public static final String USER_AGENT
             = "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Firefox/68.0";
+    public static final String YOUTUBE_RESTRICTED_MODE_COOKIE_KEY
+            = "youtube_restricted_mode_key";
+    public static final String YOUTUBE_RESTRICTED_MODE_COOKIE = "PREF=f2=8000000";
+    public static final String YOUTUBE_DOMAIN = "youtube.com";
 
     private static DownloaderImpl instance;
-    private String mCookies;
+    private Map<String, String> mCookies;
     private OkHttpClient client;
 
     private DownloaderImpl(final OkHttpClient.Builder builder) {
@@ -54,6 +62,7 @@ public final class DownloaderImpl extends Downloader {
 //                .cache(new Cache(new File(context.getExternalCacheDir(), "okhttp"),
 //                        16 * 1024 * 1024))
                 .build();
+        this.mCookies = new HashMap<>();
     }
 
     /**
@@ -121,12 +130,50 @@ public final class DownloaderImpl extends Downloader {
         }
     }
 
-    public String getCookies() {
-        return mCookies;
+    public String getCookies(final String url) {
+        List<String> resultCookies = new ArrayList<>();
+        if (url.contains(YOUTUBE_DOMAIN)) {
+            String youtubeCookie = getCookie(YOUTUBE_RESTRICTED_MODE_COOKIE_KEY);
+            if (youtubeCookie != null) {
+                resultCookies.add(youtubeCookie);
+            }
+        }
+        // Recaptcha cookie is always added TODO: not sure if this is necessary
+        String recaptchaCookie = getCookie(ReCaptchaActivity.RECAPTCHA_COOKIES_KEY);
+        if (recaptchaCookie != null) {
+            resultCookies.add(recaptchaCookie);
+        }
+        return CookieUtils.concatCookies(resultCookies);
     }
 
-    public void setCookies(final String cookies) {
-        mCookies = cookies;
+    public String getCookie(final String key) {
+        return mCookies.get(key);
+    }
+
+    public void setCookie(final String key, final String cookie) {
+        mCookies.put(key, cookie);
+    }
+
+    public void removeCookie(final String key) {
+        mCookies.remove(key);
+    }
+
+    public void updateYoutubeRestrictedModeCookies(final Context context) {
+        String restrictedModeEnabledKey =
+                context.getString(R.string.youtube_restricted_mode_enabled);
+        boolean restrictedModeEnabled = PreferenceManager.getDefaultSharedPreferences(context)
+                .getBoolean(restrictedModeEnabledKey, false);
+        updateYoutubeRestrictedModeCookies(restrictedModeEnabled);
+    }
+
+    public void updateYoutubeRestrictedModeCookies(final boolean youtubeRestrictedModeEnabled) {
+        if (youtubeRestrictedModeEnabled) {
+            setCookie(YOUTUBE_RESTRICTED_MODE_COOKIE_KEY,
+                    YOUTUBE_RESTRICTED_MODE_COOKIE);
+        } else {
+            removeCookie(YOUTUBE_RESTRICTED_MODE_COOKIE_KEY);
+        }
+        InfoCache.getInstance().clearCache();
     }
 
     /**
@@ -152,8 +199,9 @@ public final class DownloaderImpl extends Downloader {
                     .method("GET", null).url(siteUrl)
                     .addHeader("User-Agent", USER_AGENT);
 
-            if (!TextUtils.isEmpty(mCookies)) {
-                requestBuilder.addHeader("Cookie", mCookies);
+            String cookies = getCookies(siteUrl);
+            if (!cookies.isEmpty()) {
+                requestBuilder.addHeader("Cookie", cookies);
             }
 
             final okhttp3.Request request = requestBuilder.build();
@@ -192,8 +240,9 @@ public final class DownloaderImpl extends Downloader {
                 .method(httpMethod, requestBody).url(url)
                 .addHeader("User-Agent", USER_AGENT);
 
-        if (!TextUtils.isEmpty(mCookies)) {
-            requestBuilder.addHeader("Cookie", mCookies);
+        String cookies = getCookies(url);
+        if (!cookies.isEmpty()) {
+            requestBuilder.addHeader("Cookie", cookies);
         }
 
         for (Map.Entry<String, List<String>> pair : headers.entrySet()) {

app/src/main/java/org/schabi/newpipe/MainActivity.java

@@ -165,7 +165,7 @@ public class MainActivity extends AppCompatActivity {
             drawerItems.getMenu()
                     .add(R.id.menu_tabs_group, kioskId, 0, KioskTranslator
                             .getTranslatedKioskName(ks, this))
-                    .setIcon(KioskTranslator.getKioskIcons(ks, this));
+                    .setIcon(KioskTranslator.getKioskIcon(ks, this));
             kioskId++;
         }
 
@@ -175,24 +175,24 @@ public class MainActivity extends AppCompatActivity {
                 .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_channel));
         drawerItems.getMenu()
                 .add(R.id.menu_tabs_group, ITEM_ID_FEED, ORDER, R.string.fragment_feed_title)
-                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.rss));
+                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_rss));
         drawerItems.getMenu()
                 .add(R.id.menu_tabs_group, ITEM_ID_BOOKMARKS, ORDER, R.string.tab_bookmarks)
                 .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_bookmark));
         drawerItems.getMenu()
                 .add(R.id.menu_tabs_group, ITEM_ID_DOWNLOADS, ORDER, R.string.downloads)
-                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.download));
+                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_file_download));
         drawerItems.getMenu()
                 .add(R.id.menu_tabs_group, ITEM_ID_HISTORY, ORDER, R.string.action_history)
-                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.history));
+                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_history));
 
         //Settings and About
         drawerItems.getMenu()
                 .add(R.id.menu_options_about_group, ITEM_ID_SETTINGS, ORDER, R.string.settings)
-                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.settings));
+                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_settings));
         drawerItems.getMenu()
                 .add(R.id.menu_options_about_group, ITEM_ID_ABOUT, ORDER, R.string.tab_about)
-                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.info));
+                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_info_outline));
 
         toggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.drawer_open,
                 R.string.drawer_close);
@@ -420,7 +420,7 @@ public class MainActivity extends AppCompatActivity {
             drawerItems.getMenu()
                     .add(R.id.menu_tabs_group, kioskId, ORDER,
                             KioskTranslator.getTranslatedKioskName(ks, this))
-                    .setIcon(KioskTranslator.getKioskIcons(ks, this));
+                    .setIcon(KioskTranslator.getKioskIcon(ks, this));
             kioskId++;
         }
 
@@ -429,24 +429,24 @@ public class MainActivity extends AppCompatActivity {
                 .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_channel));
         drawerItems.getMenu()
                 .add(R.id.menu_tabs_group, ITEM_ID_FEED, ORDER, R.string.fragment_feed_title)
-                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.rss));
+                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_rss));
         drawerItems.getMenu()
                 .add(R.id.menu_tabs_group, ITEM_ID_BOOKMARKS, ORDER, R.string.tab_bookmarks)
                 .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_bookmark));
         drawerItems.getMenu()
                 .add(R.id.menu_tabs_group, ITEM_ID_DOWNLOADS, ORDER, R.string.downloads)
-                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.download));
+                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_file_download));
         drawerItems.getMenu()
                 .add(R.id.menu_tabs_group, ITEM_ID_HISTORY, ORDER, R.string.action_history)
-                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.history));
+                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_history));
 
         //Settings and About
         drawerItems.getMenu()
                 .add(R.id.menu_options_about_group, ITEM_ID_SETTINGS, ORDER, R.string.settings)
-                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.settings));
+                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_settings));
         drawerItems.getMenu()
                 .add(R.id.menu_options_about_group, ITEM_ID_ABOUT, ORDER, R.string.tab_about)
-                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.info));
+                .setIcon(ThemeHelper.resolveResourceIdFromAttr(this, R.attr.ic_info_outline));
     }
 
     @Override

app/src/main/java/org/schabi/newpipe/ReCaptchaActivity.java

@@ -51,6 +51,7 @@ public class ReCaptchaActivity extends AppCompatActivity {
     public static final String RECAPTCHA_URL_EXTRA = "recaptcha_url_extra";
     public static final String TAG = ReCaptchaActivity.class.toString();
     public static final String YT_URL = "https://www.youtube.com";
+    public static final String RECAPTCHA_COOKIES_KEY = "recaptcha_cookies";
 
     private WebView webView;
     private String foundCookies = "";
@@ -168,7 +169,7 @@ public class ReCaptchaActivity extends AppCompatActivity {
             prefs.edit().putString(key, foundCookies).apply();
 
             // give cookies to Downloader class
-            DownloaderImpl.getInstance().setCookies(foundCookies);
+            DownloaderImpl.getInstance().setCookie(RECAPTCHA_COOKIES_KEY, foundCookies);
             setResult(RESULT_OK);
         }
 

app/src/main/java/org/schabi/newpipe/RouterActivity.java

@@ -25,6 +25,7 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.content.res.AppCompatResources;
 import androidx.core.app.NotificationCompat;
 import androidx.fragment.app.FragmentManager;
 
@@ -43,15 +44,15 @@ import org.schabi.newpipe.player.playqueue.PlayQueue;
 import org.schabi.newpipe.player.playqueue.PlaylistPlayQueue;
 import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 import org.schabi.newpipe.report.UserAction;
+import org.schabi.newpipe.util.AndroidTvUtils;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.ExtractorHelper;
-import org.schabi.newpipe.util.AndroidTvUtils;
 import org.schabi.newpipe.util.ListHelper;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.PermissionHelper;
 import org.schabi.newpipe.util.ThemeHelper;
-import org.schabi.newpipe.views.FocusOverlayView;
 import org.schabi.newpipe.util.urlfinder.UrlFinder;
+import org.schabi.newpipe.views.FocusOverlayView;
 
 import java.io.Serializable;
 import java.util.ArrayList;
@@ -313,7 +314,9 @@ public class RouterActivity extends AppCompatActivity {
             final RadioButton radioButton
                     = (RadioButton) inflater.inflate(R.layout.list_radio_icon_item, null);
             radioButton.setText(item.description);
-            radioButton.setCompoundDrawablesWithIntrinsicBounds(item.icon, 0, 0, 0);
+            radioButton.setCompoundDrawablesWithIntrinsicBounds(
+                    AppCompatResources.getDrawable(getApplicationContext(), item.icon),
+                    null, null, null);
             radioButton.setChecked(false);
             radioButton.setId(id++);
             radioButton.setLayoutParams(new RadioGroup.LayoutParams(
@@ -366,26 +369,26 @@ public class RouterActivity extends AppCompatActivity {
 
         returnList.add(new AdapterChoiceItem(getString(R.string.show_info_key),
                 getString(R.string.show_info),
-                resolveResourceIdFromAttr(context, R.attr.info)));
+                resolveResourceIdFromAttr(context, R.attr.ic_info_outline)));
 
         if (capabilities.contains(VIDEO) && !(isExtVideoEnabled && linkType != LinkType.STREAM)) {
             returnList.add(new AdapterChoiceItem(getString(R.string.video_player_key),
                     getString(R.string.video_player),
-                    resolveResourceIdFromAttr(context, R.attr.play)));
+                    resolveResourceIdFromAttr(context, R.attr.ic_play_arrow)));
             returnList.add(new AdapterChoiceItem(getString(R.string.popup_player_key),
                     getString(R.string.popup_player),
-                    resolveResourceIdFromAttr(context, R.attr.popup)));
+                    resolveResourceIdFromAttr(context, R.attr.ic_popup)));
         }
 
         if (capabilities.contains(AUDIO) && !(isExtAudioEnabled && linkType != LinkType.STREAM)) {
             returnList.add(new AdapterChoiceItem(getString(R.string.background_player_key),
                     getString(R.string.background_player),
-                    resolveResourceIdFromAttr(context, R.attr.audio)));
+                    resolveResourceIdFromAttr(context, R.attr.ic_headset)));
         }
 
         returnList.add(new AdapterChoiceItem(getString(R.string.download_key),
                 getString(R.string.download),
-                resolveResourceIdFromAttr(context, R.attr.download)));
+                resolveResourceIdFromAttr(context, R.attr.ic_file_download)));
 
         return returnList;
     }

app/src/main/java/org/schabi/newpipe/about/LicenseFragment.java

@@ -2,8 +2,6 @@ package org.schabi.newpipe.about;
 
 import android.app.Activity;
 import android.content.Context;
-import android.content.Intent;
-import android.net.Uri;
 import android.os.Bundle;
 import android.view.ContextMenu;
 import android.view.LayoutInflater;
@@ -17,9 +15,9 @@ import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
 
 import org.schabi.newpipe.R;
+import org.schabi.newpipe.util.ShareUtils;
 
 import java.util.Arrays;
-import java.util.Comparator;
 
 /**
  * Fragment containing the software licenses.
@@ -27,7 +25,7 @@ import java.util.Comparator;
 public class LicenseFragment extends Fragment {
     private static final String ARG_COMPONENTS = "components";
     private SoftwareComponent[] softwareComponents;
-    private SoftwareComponent mComponentForContextMenu;
+    private SoftwareComponent componentForContextMenu;
 
     public static LicenseFragment newInstance(final SoftwareComponent[] softwareComponents) {
         if (softwareComponents == null) {
@@ -46,7 +44,7 @@ public class LicenseFragment extends Fragment {
      * @param context the context to use
      * @param license the license to show
      */
-    public static void showLicense(final Context context, final License license) {
+    private static void showLicense(final Context context, final License license) {
         new LicenseFragmentHelper((Activity) context).execute(license);
     }
 
@@ -57,45 +55,34 @@ public class LicenseFragment extends Fragment {
                 .getParcelableArray(ARG_COMPONENTS);
 
         // Sort components by name
-        Arrays.sort(softwareComponents, new Comparator<SoftwareComponent>() {
-            @Override
-            public int compare(final SoftwareComponent o1, final SoftwareComponent o2) {
-                return o1.getName().compareTo(o2.getName());
-            }
-        });
+        Arrays.sort(softwareComponents, (o1, o2) -> o1.getName().compareTo(o2.getName()));
     }
 
     @Nullable
     @Override
     public View onCreateView(final LayoutInflater inflater, @Nullable final ViewGroup container,
                              @Nullable final Bundle savedInstanceState) {
-        View rootView = inflater.inflate(R.layout.fragment_licenses, container, false);
-        ViewGroup softwareComponentsView = rootView.findViewById(R.id.software_components);
+        final View rootView = inflater.inflate(R.layout.fragment_licenses, container, false);
+        final ViewGroup softwareComponentsView = rootView.findViewById(R.id.software_components);
 
-        View licenseLink = rootView.findViewById(R.id.app_read_license);
-        licenseLink.setOnClickListener(new OnReadFullLicenseClickListener());
+        final View licenseLink = rootView.findViewById(R.id.app_read_license);
+        licenseLink.setOnClickListener(v ->
+                showLicense(getActivity(), StandardLicenses.GPL3));
 
         for (final SoftwareComponent component : softwareComponents) {
-            View componentView = inflater
+            final View componentView = inflater
                     .inflate(R.layout.item_software_component, container, false);
-            TextView softwareName = componentView.findViewById(R.id.name);
-            TextView copyright = componentView.findViewById(R.id.copyright);
+            final TextView softwareName = componentView.findViewById(R.id.name);
+            final TextView copyright = componentView.findViewById(R.id.copyright);
             softwareName.setText(component.getName());
-            copyright.setText(getContext().getString(R.string.copyright,
+            copyright.setText(getString(R.string.copyright,
                     component.getYears(),
                     component.getCopyrightOwner(),
                     component.getLicense().getAbbreviation()));
 
             componentView.setTag(component);
-            componentView.setOnClickListener(new View.OnClickListener() {
-                @Override
-                public void onClick(final View v) {
-                    Context context = v.getContext();
-                    if (context != null) {
-                        showLicense(context, component.getLicense());
-                    }
-                }
-            });
+            componentView.setOnClickListener(v ->
+                    showLicense(getActivity(), component.getLicense()));
             softwareComponentsView.addView(componentView);
             registerForContextMenu(componentView);
         }
@@ -105,40 +92,28 @@ public class LicenseFragment extends Fragment {
     @Override
     public void onCreateContextMenu(final ContextMenu menu, final View v,
                                     final ContextMenu.ContextMenuInfo menuInfo) {
-        MenuInflater inflater = getActivity().getMenuInflater();
-        SoftwareComponent component = (SoftwareComponent) v.getTag();
+        final MenuInflater inflater = getActivity().getMenuInflater();
+        final SoftwareComponent component = (SoftwareComponent) v.getTag();
         menu.setHeaderTitle(component.getName());
         inflater.inflate(R.menu.software_component, menu);
         super.onCreateContextMenu(menu, v, menuInfo);
-        mComponentForContextMenu = (SoftwareComponent) v.getTag();
+        componentForContextMenu = (SoftwareComponent) v.getTag();
     }
 
     @Override
     public boolean onContextItemSelected(final MenuItem item) {
         // item.getMenuInfo() is null so we use the tag of the view
-        final SoftwareComponent component = mComponentForContextMenu;
+        final SoftwareComponent component = componentForContextMenu;
         if (component == null) {
             return false;
         }
         switch (item.getItemId()) {
             case R.id.action_website:
-                openWebsite(component.getLink());
+                ShareUtils.openUrlInBrowser(getActivity(), component.getLink());
                 return true;
             case R.id.action_show_license:
-                showLicense(getContext(), component.getLicense());
+                showLicense(getActivity(), component.getLicense());
         }
         return false;
     }
-
-    private void openWebsite(final String componentLink) {
-        Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(componentLink));
-        startActivity(browserIntent);
-    }
-
-    private static class OnReadFullLicenseClickListener implements View.OnClickListener {
-        @Override
-        public void onClick(final View v) {
-            LicenseFragment.showLicense(v.getContext(), StandardLicenses.GPL3);
-        }
-    }
 }

app/src/main/java/org/schabi/newpipe/about/LicenseFragmentHelper.java

@@ -3,8 +3,10 @@ package org.schabi.newpipe.about;
 import android.app.Activity;
 import android.content.Context;
 import android.os.AsyncTask;
+import android.util.Base64;
 import android.webkit.WebView;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 
@@ -12,6 +14,7 @@ import org.schabi.newpipe.R;
 import org.schabi.newpipe.util.ThemeHelper;
 
 import java.io.BufferedReader;
+import java.io.IOException;
 import java.io.InputStreamReader;
 import java.lang.ref.WeakReference;
 import java.nio.charset.StandardCharsets;
@@ -26,28 +29,18 @@ public class LicenseFragmentHelper extends AsyncTask<Object, Void, Integer> {
         weakReference = new WeakReference<>(activity);
     }
 
-    private static String getFinishString(final Activity activity) {
-        return activity.getApplicationContext().getResources().getString(R.string.finish);
-    }
-
     /**
      * @param context the context to use
      * @param license the license
      * @return String which contains a HTML formatted license page
      * styled according to the context's theme
      */
-    public static String getFormattedLicense(final Context context, final License license) {
-        if (context == null) {
-            throw new NullPointerException("context is null");
-        }
-        if (license == null) {
-            throw new NullPointerException("license is null");
-        }
-
-        StringBuilder licenseContent = new StringBuilder();
-        String webViewData;
+    private static String getFormattedLicense(@NonNull final Context context,
+                                              @NonNull final License license) {
+        final StringBuilder licenseContent = new StringBuilder();
+        final String webViewData;
         try {
-            BufferedReader in = new BufferedReader(new InputStreamReader(
+            final BufferedReader in = new BufferedReader(new InputStreamReader(
                     context.getAssets().open(license.getFilename()), StandardCharsets.UTF_8));
             String str;
             while ((str = in.readLine()) != null) {
@@ -56,13 +49,11 @@ public class LicenseFragmentHelper extends AsyncTask<Object, Void, Integer> {
             in.close();
 
             // split the HTML file and insert the stylesheet into the HEAD of the file
-            String[] insert = licenseContent.toString().split("</head>");
-            webViewData = insert[0] + "<style type=\"text/css\">"
-                    + getLicenseStylesheet(context) + "</style></head>"
-                    + insert[1];
-        } catch (Exception e) {
-            throw new NullPointerException("could not get license file:"
-                    + getLicenseStylesheet(context));
+            webViewData = licenseContent.toString().replace("</head>",
+                    "<style>" + getLicenseStylesheet(context) + "</style></head>");
+        } catch (IOException e) {
+            throw new IllegalArgumentException(
+                    "Could not get license file: " + license.getFilename(), e);
         }
         return webViewData;
     }
@@ -71,21 +62,19 @@ public class LicenseFragmentHelper extends AsyncTask<Object, Void, Integer> {
      * @param context
      * @return String which is a CSS stylesheet according to the context's theme
      */
-    public static String getLicenseStylesheet(final Context context) {
-        boolean isLightTheme = ThemeHelper.isLightThemeSelected(context);
-        return "body{padding:12px 15px;margin:0;background:#"
-                + getHexRGBColor(context, isLightTheme
+    private static String getLicenseStylesheet(final Context context) {
+        final boolean isLightTheme = ThemeHelper.isLightThemeSelected(context);
+        return "body{padding:12px 15px;margin:0;"
+                + "background:#" + getHexRGBColor(context, isLightTheme
                 ? R.color.light_license_background_color
-                : R.color.dark_license_background_color)
-                + ";color:#"
-                + getHexRGBColor(context, isLightTheme
+                : R.color.dark_license_background_color) + ";"
+                + "color:#" + getHexRGBColor(context, isLightTheme
                 ? R.color.light_license_text_color
-                : R.color.dark_license_text_color) + ";}"
-                + "a[href]{color:#"
-                + getHexRGBColor(context, isLightTheme
+                : R.color.dark_license_text_color) + "}"
+                + "a[href]{color:#" + getHexRGBColor(context, isLightTheme
                 ? R.color.light_youtube_primary_color
-                : R.color.dark_youtube_primary_color) + ";}"
-                + "pre{white-space: pre-wrap;}";
+                : R.color.dark_youtube_primary_color) + "}"
+                + "pre{white-space:pre-wrap}";
     }
 
     /**
@@ -95,13 +84,13 @@ public class LicenseFragmentHelper extends AsyncTask<Object, Void, Integer> {
      * @param color   the color number from R.color
      * @return a six characters long String with hexadecimal RGB values
      */
-    public static String getHexRGBColor(final Context context, final int color) {
+    private static String getHexRGBColor(final Context context, final int color) {
         return context.getResources().getString(color).substring(3);
     }
 
     @Nullable
     private Activity getActivity() {
-        Activity activity = weakReference.get();
+        final Activity activity = weakReference.get();
 
         if (activity != null && activity.isFinishing()) {
             return null;
@@ -118,22 +107,22 @@ public class LicenseFragmentHelper extends AsyncTask<Object, Void, Integer> {
 
     @Override
     protected void onPostExecute(final Integer result) {
-        Activity activity = getActivity();
+        final Activity activity = getActivity();
         if (activity == null) {
             return;
         }
 
-        String webViewData = getFormattedLicense(activity, license);
-        AlertDialog.Builder alert = new AlertDialog.Builder(activity);
+        final String webViewData = Base64.encodeToString(getFormattedLicense(activity, license)
+                .getBytes(StandardCharsets.UTF_8), Base64.NO_PADDING);
+        final WebView webView = new WebView(activity);
+        webView.loadData(webViewData, "text/html; charset=UTF-8", "base64");
+
+        final AlertDialog.Builder alert = new AlertDialog.Builder(activity);
         alert.setTitle(license.getName());
-
-        WebView wv = new WebView(activity);
-        wv.loadData(webViewData, "text/html; charset=UTF-8", null);
-
-        alert.setView(wv);
-        assureCorrectAppLanguage(activity.getApplicationContext());
-        alert.setNegativeButton(getFinishString(activity), (dialog, which) -> dialog.dismiss());
+        alert.setView(webView);
+        assureCorrectAppLanguage(activity);
+        alert.setNegativeButton(activity.getString(R.string.finish),
+                (dialog, which) -> dialog.dismiss());
         alert.show();
     }
-
 }

app/src/main/java/org/schabi/newpipe/database/feed/dao/FeedDAO.kt

@@ -1,12 +1,17 @@
 package org.schabi.newpipe.database.feed.dao
 
-import androidx.room.*
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Transaction
+import androidx.room.Update
 import io.reactivex.Flowable
+import java.util.Date
 import org.schabi.newpipe.database.feed.model.FeedEntity
 import org.schabi.newpipe.database.feed.model.FeedLastUpdatedEntity
 import org.schabi.newpipe.database.stream.model.StreamEntity
 import org.schabi.newpipe.database.subscription.SubscriptionEntity
-import java.util.*
 
 @Dao
 abstract class FeedDAO {

app/src/main/java/org/schabi/newpipe/database/feed/dao/FeedGroupDAO.kt

@@ -1,6 +1,11 @@
 package org.schabi.newpipe.database.feed.dao
 
-import androidx.room.*
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Transaction
+import androidx.room.Update
 import io.reactivex.Flowable
 import io.reactivex.Maybe
 import org.schabi.newpipe.database.feed.model.FeedGroupEntity

app/src/main/java/org/schabi/newpipe/database/feed/model/FeedEntity.kt

@@ -27,11 +27,11 @@ import org.schabi.newpipe.database.subscription.SubscriptionEntity
         ]
 )
 data class FeedEntity(
-        @ColumnInfo(name = STREAM_ID)
-        var streamId: Long,
+    @ColumnInfo(name = STREAM_ID)
+    var streamId: Long,
 
-        @ColumnInfo(name = SUBSCRIPTION_ID)
-        var subscriptionId: Long
+    @ColumnInfo(name = SUBSCRIPTION_ID)
+    var subscriptionId: Long
 ) {
 
     companion object {
@@ -40,4 +40,4 @@ data class FeedEntity(
         const val STREAM_ID = "stream_id"
         const val SUBSCRIPTION_ID = "subscription_id"
     }
-}
+}

app/src/main/java/org/schabi/newpipe/database/feed/model/FeedGroupEntity.kt

@@ -13,18 +13,18 @@ import org.schabi.newpipe.local.subscription.FeedGroupIcon
         indices = [Index(SORT_ORDER)]
 )
 data class FeedGroupEntity(
-        @PrimaryKey(autoGenerate = true)
-        @ColumnInfo(name = ID)
-        val uid: Long,
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = ID)
+    val uid: Long,
 
-        @ColumnInfo(name = NAME)
-        var name: String,
+    @ColumnInfo(name = NAME)
+    var name: String,
 
-        @ColumnInfo(name = ICON)
-        var icon: FeedGroupIcon,
+    @ColumnInfo(name = ICON)
+    var icon: FeedGroupIcon,
 
-        @ColumnInfo(name = SORT_ORDER)
-        var sortOrder: Long = -1
+    @ColumnInfo(name = SORT_ORDER)
+    var sortOrder: Long = -1
 ) {
     companion object {
         const val FEED_GROUP_TABLE = "feed_group"
@@ -36,4 +36,4 @@ data class FeedGroupEntity(
 
         const val GROUP_ALL_ID = -1L
     }
-}
+}

app/src/main/java/org/schabi/newpipe/database/feed/model/FeedGroupSubscriptionEntity.kt

@@ -29,11 +29,11 @@ import org.schabi.newpipe.database.subscription.SubscriptionEntity
         ]
 )
 data class FeedGroupSubscriptionEntity(
-        @ColumnInfo(name = GROUP_ID)
-        var feedGroupId: Long,
+    @ColumnInfo(name = GROUP_ID)
+    var feedGroupId: Long,
 
-        @ColumnInfo(name = SUBSCRIPTION_ID)
-        var subscriptionId: Long
+    @ColumnInfo(name = SUBSCRIPTION_ID)
+    var subscriptionId: Long
 ) {
 
     companion object {
@@ -42,4 +42,4 @@ data class FeedGroupSubscriptionEntity(
         const val GROUP_ID = "group_id"
         const val SUBSCRIPTION_ID = "subscription_id"
     }
-}
+}

app/src/main/java/org/schabi/newpipe/database/feed/model/FeedLastUpdatedEntity.kt

@@ -4,10 +4,10 @@ import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.ForeignKey
 import androidx.room.PrimaryKey
+import java.util.Date
 import org.schabi.newpipe.database.feed.model.FeedLastUpdatedEntity.Companion.FEED_LAST_UPDATED_TABLE
 import org.schabi.newpipe.database.feed.model.FeedLastUpdatedEntity.Companion.SUBSCRIPTION_ID
 import org.schabi.newpipe.database.subscription.SubscriptionEntity
-import java.util.*
 
 @Entity(
         tableName = FEED_LAST_UPDATED_TABLE,
@@ -20,12 +20,12 @@ import java.util.*
         ]
 )
 data class FeedLastUpdatedEntity(
-        @PrimaryKey
-        @ColumnInfo(name = SUBSCRIPTION_ID)
-        var subscriptionId: Long,
+    @PrimaryKey
+    @ColumnInfo(name = SUBSCRIPTION_ID)
+    var subscriptionId: Long,
 
-        @ColumnInfo(name = LAST_UPDATED)
-        var lastUpdated: Date? = null
+    @ColumnInfo(name = LAST_UPDATED)
+    var lastUpdated: Date? = null
 ) {
 
     companion object {
@@ -34,4 +34,4 @@ data class FeedLastUpdatedEntity(
         const val SUBSCRIPTION_ID = "subscription_id"
         const val LAST_UPDATED = "last_updated"
     }
-}
+}

app/src/main/java/org/schabi/newpipe/database/history/model/StreamHistoryEntry.kt

@@ -2,21 +2,21 @@ package org.schabi.newpipe.database.history.model
 
 import androidx.room.ColumnInfo
 import androidx.room.Embedded
+import java.util.Date
 import org.schabi.newpipe.database.stream.model.StreamEntity
-import java.util.*
 
 data class StreamHistoryEntry(
-        @Embedded
-        val streamEntity: StreamEntity,
+    @Embedded
+    val streamEntity: StreamEntity,
 
-        @ColumnInfo(name = StreamHistoryEntity.JOIN_STREAM_ID)
-        val streamId: Long,
+    @ColumnInfo(name = StreamHistoryEntity.JOIN_STREAM_ID)
+    val streamId: Long,
 
-        @ColumnInfo(name = StreamHistoryEntity.STREAM_ACCESS_DATE)
-        val accessDate: Date,
+    @ColumnInfo(name = StreamHistoryEntity.STREAM_ACCESS_DATE)
+    val accessDate: Date,
 
-        @ColumnInfo(name = StreamHistoryEntity.STREAM_REPEAT_COUNT)
-        val repeatCount: Long
+    @ColumnInfo(name = StreamHistoryEntity.STREAM_REPEAT_COUNT)
+    val repeatCount: Long
 ) {
 
     fun toStreamHistoryEntity(): StreamHistoryEntity {

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistStreamEntry.kt

@@ -8,14 +8,14 @@ import org.schabi.newpipe.database.stream.model.StreamEntity
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
 
 class PlaylistStreamEntry(
-        @Embedded
-        val streamEntity: StreamEntity,
+    @Embedded
+    val streamEntity: StreamEntity,
 
-        @ColumnInfo(name = PlaylistStreamEntity.JOIN_STREAM_ID)
-        val streamId: Long,
+    @ColumnInfo(name = PlaylistStreamEntity.JOIN_STREAM_ID)
+    val streamId: Long,
 
-        @ColumnInfo(name = PlaylistStreamEntity.JOIN_INDEX)
-        val joinIndex: Int
+    @ColumnInfo(name = PlaylistStreamEntity.JOIN_INDEX)
+    val joinIndex: Int
 ) : LocalItem {
 
     @Throws(IllegalArgumentException::class)

app/src/main/java/org/schabi/newpipe/database/stream/StreamStatisticsEntry.kt

@@ -2,24 +2,24 @@ package org.schabi.newpipe.database.stream
 
 import androidx.room.ColumnInfo
 import androidx.room.Embedded
+import java.util.Date
 import org.schabi.newpipe.database.LocalItem
 import org.schabi.newpipe.database.history.model.StreamHistoryEntity
 import org.schabi.newpipe.database.stream.model.StreamEntity
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
-import java.util.*
 
 class StreamStatisticsEntry(
-        @Embedded
-        val streamEntity: StreamEntity,
+    @Embedded
+    val streamEntity: StreamEntity,
 
-        @ColumnInfo(name = StreamHistoryEntity.JOIN_STREAM_ID)
-        val streamId: Long,
+    @ColumnInfo(name = StreamHistoryEntity.JOIN_STREAM_ID)
+    val streamId: Long,
 
-        @ColumnInfo(name = STREAM_LATEST_DATE)
-        val latestAccessDate: Date,
+    @ColumnInfo(name = STREAM_LATEST_DATE)
+    val latestAccessDate: Date,
 
-        @ColumnInfo(name = STREAM_WATCH_COUNT)
-        val watchCount: Long
+    @ColumnInfo(name = STREAM_WATCH_COUNT)
+    val watchCount: Long
 ) : LocalItem {
 
     fun toStreamInfoItem(): StreamInfoItem {

app/src/main/java/org/schabi/newpipe/database/stream/dao/StreamDAO.kt

@@ -1,15 +1,19 @@
 package org.schabi.newpipe.database.stream.dao
 
-import androidx.room.*
+import androidx.room.ColumnInfo
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Transaction
 import io.reactivex.Flowable
+import java.util.Date
 import org.schabi.newpipe.database.BasicDAO
 import org.schabi.newpipe.database.stream.model.StreamEntity
 import org.schabi.newpipe.database.stream.model.StreamEntity.Companion.STREAM_ID
 import org.schabi.newpipe.extractor.stream.StreamType
 import org.schabi.newpipe.extractor.stream.StreamType.AUDIO_LIVE_STREAM
 import org.schabi.newpipe.extractor.stream.StreamType.LIVE_STREAM
-import java.util.*
-import kotlin.collections.ArrayList
 
 @Dao
 abstract class StreamDAO : BasicDAO<StreamEntity> {
@@ -94,7 +98,6 @@ abstract class StreamDAO : BasicDAO<StreamEntity> {
             if (existentMinimalStream.duration > 0 && newerStream.duration < 0) {
                 newerStream.duration = existentMinimalStream.duration
             }
-
         }
     }
 
@@ -116,21 +119,22 @@ abstract class StreamDAO : BasicDAO<StreamEntity> {
      * Minimal entry class used when comparing/updating an existent stream.
      */
     internal data class StreamCompareFeed(
-            @ColumnInfo(name = STREAM_ID)
-            var uid: Long = 0,
+        @ColumnInfo(name = STREAM_ID)
+        var uid: Long = 0,
 
-            @ColumnInfo(name = StreamEntity.STREAM_TYPE)
-            var streamType: StreamType,
+        @ColumnInfo(name = StreamEntity.STREAM_TYPE)
+        var streamType: StreamType,
 
-            @ColumnInfo(name = StreamEntity.STREAM_TEXTUAL_UPLOAD_DATE)
-            var textualUploadDate: String? = null,
+        @ColumnInfo(name = StreamEntity.STREAM_TEXTUAL_UPLOAD_DATE)
+        var textualUploadDate: String? = null,
 
-            @ColumnInfo(name = StreamEntity.STREAM_UPLOAD_DATE)
-            var uploadDate: Date? = null,
+        @ColumnInfo(name = StreamEntity.STREAM_UPLOAD_DATE)
+        var uploadDate: Date? = null,
 
-            @ColumnInfo(name = StreamEntity.STREAM_IS_UPLOAD_DATE_APPROXIMATION)
-            var isUploadDateApproximation: Boolean? = null,
+        @ColumnInfo(name = StreamEntity.STREAM_IS_UPLOAD_DATE_APPROXIMATION)
+        var isUploadDateApproximation: Boolean? = null,
 
-            @ColumnInfo(name = StreamEntity.STREAM_DURATION)
-            var duration: Long)
+        @ColumnInfo(name = StreamEntity.STREAM_DURATION)
+        var duration: Long
+    )
 }

app/src/main/java/org/schabi/newpipe/database/stream/model/StreamEntity.kt

@@ -1,6 +1,13 @@
 package org.schabi.newpipe.database.stream.model
 
-import androidx.room.*
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.Ignore
+import androidx.room.Index
+import androidx.room.PrimaryKey
+import java.io.Serializable
+import java.util.Calendar
+import java.util.Date
 import org.schabi.newpipe.database.stream.model.StreamEntity.Companion.STREAM_SERVICE_ID
 import org.schabi.newpipe.database.stream.model.StreamEntity.Companion.STREAM_TABLE
 import org.schabi.newpipe.database.stream.model.StreamEntity.Companion.STREAM_URL
@@ -9,8 +16,6 @@ import org.schabi.newpipe.extractor.stream.StreamInfo
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
 import org.schabi.newpipe.extractor.stream.StreamType
 import org.schabi.newpipe.player.playqueue.PlayQueueItem
-import java.io.Serializable
-import java.util.*
 
 @Entity(tableName = STREAM_TABLE,
         indices = [
@@ -18,42 +23,42 @@ import java.util.*
         ]
 )
 data class StreamEntity(
-        @PrimaryKey(autoGenerate = true)
-        @ColumnInfo(name = STREAM_ID)
-        var uid: Long = 0,
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = STREAM_ID)
+    var uid: Long = 0,
 
-        @ColumnInfo(name = STREAM_SERVICE_ID)
-        var serviceId: Int,
+    @ColumnInfo(name = STREAM_SERVICE_ID)
+    var serviceId: Int,
 
-        @ColumnInfo(name = STREAM_URL)
-        var url: String,
+    @ColumnInfo(name = STREAM_URL)
+    var url: String,
 
-        @ColumnInfo(name = STREAM_TITLE)
-        var title: String,
+    @ColumnInfo(name = STREAM_TITLE)
+    var title: String,
 
-        @ColumnInfo(name = STREAM_TYPE)
-        var streamType: StreamType,
+    @ColumnInfo(name = STREAM_TYPE)
+    var streamType: StreamType,
 
-        @ColumnInfo(name = STREAM_DURATION)
-        var duration: Long,
+    @ColumnInfo(name = STREAM_DURATION)
+    var duration: Long,
 
-        @ColumnInfo(name = STREAM_UPLOADER)
-        var uploader: String,
+    @ColumnInfo(name = STREAM_UPLOADER)
+    var uploader: String,
 
-        @ColumnInfo(name = STREAM_THUMBNAIL_URL)
-        var thumbnailUrl: String? = null,
+    @ColumnInfo(name = STREAM_THUMBNAIL_URL)
+    var thumbnailUrl: String? = null,
 
-        @ColumnInfo(name = STREAM_VIEWS)
-        var viewCount: Long? = null,
+    @ColumnInfo(name = STREAM_VIEWS)
+    var viewCount: Long? = null,
 
-        @ColumnInfo(name = STREAM_TEXTUAL_UPLOAD_DATE)
-        var textualUploadDate: String? = null,
+    @ColumnInfo(name = STREAM_TEXTUAL_UPLOAD_DATE)
+    var textualUploadDate: String? = null,
 
-        @ColumnInfo(name = STREAM_UPLOAD_DATE)
-        var uploadDate: Date? = null,
+    @ColumnInfo(name = STREAM_UPLOAD_DATE)
+    var uploadDate: Date? = null,
 
-        @ColumnInfo(name = STREAM_IS_UPLOAD_DATE_APPROXIMATION)
-        var isUploadDateApproximation: Boolean? = null
+    @ColumnInfo(name = STREAM_IS_UPLOAD_DATE_APPROXIMATION)
+    var isUploadDateApproximation: Boolean? = null
 ) : Serializable {
 
     @Ignore

app/src/main/java/org/schabi/newpipe/database/subscription/SubscriptionDAO.kt

@@ -1,6 +1,10 @@
 package org.schabi.newpipe.database.subscription
 
-import androidx.room.*
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Transaction
 import io.reactivex.Flowable
 import io.reactivex.Maybe
 import org.schabi.newpipe.database.BasicDAO

app/src/main/java/org/schabi/newpipe/download/DownloadDialog.java

@@ -396,13 +396,11 @@ public class DownloadDialog extends DialogFragment
             Log.d(TAG, "initToolbar() called with: toolbar = [" + toolbar + "]");
         }
 
-        boolean isLight = ThemeHelper.isLightThemeSelected(getActivity());
-
         toolbar.setTitle(R.string.download_dialog_title);
-        toolbar.setNavigationIcon(isLight ? R.drawable.ic_arrow_back_black_24dp
-                : R.drawable.ic_arrow_back_white_24dp);
+        toolbar.setNavigationIcon(
+            ThemeHelper.resolveResourceIdFromAttr(requireContext(), R.attr.ic_arrow_back));
         toolbar.inflateMenu(R.menu.dialog_url);
-        toolbar.setNavigationOnClickListener(v -> getDialog().dismiss());
+        toolbar.setNavigationOnClickListener(v -> requireDialog().dismiss());
         toolbar.setNavigationContentDescription(R.string.cancel);
 
         okButton = toolbar.findViewById(R.id.okay);

app/src/main/java/org/schabi/newpipe/fragments/MainFragment.java

@@ -1,7 +1,9 @@
 package org.schabi.newpipe.fragments;
 
 import android.content.Context;
+import android.content.res.ColorStateList;
 import android.os.Bundle;
+import android.preference.PreferenceManager;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.Menu;
@@ -30,6 +32,7 @@ import org.schabi.newpipe.settings.tabs.Tab;
 import org.schabi.newpipe.settings.tabs.TabsManager;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.ServiceHelper;
+import org.schabi.newpipe.util.ThemeHelper;
 import org.schabi.newpipe.views.ScrollableTabLayout;
 
 import java.util.ArrayList;
@@ -45,6 +48,9 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
 
     private boolean hasTabsChanged = false;
 
+    private boolean previousYoutubeRestrictedModeEnabled;
+    private String youtubeRestrictedModeEnabledKey;
+
     /*//////////////////////////////////////////////////////////////////////////
     // Fragment's LifeCycle
     //////////////////////////////////////////////////////////////////////////*/
@@ -53,7 +59,6 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
     public void onCreate(final Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setHasOptionsMenu(true);
-
         tabsManager = TabsManager.getManager(activity);
         tabsManager.setSavedTabsListener(() -> {
             if (DEBUG) {
@@ -66,6 +71,11 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
                 hasTabsChanged = true;
             }
         });
+
+        youtubeRestrictedModeEnabledKey = getString(R.string.youtube_restricted_mode_enabled);
+        previousYoutubeRestrictedModeEnabled =
+                PreferenceManager.getDefaultSharedPreferences(getContext())
+                        .getBoolean(youtubeRestrictedModeEnabledKey, false);
     }
 
     @Override
@@ -82,6 +92,8 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
         tabLayout = rootView.findViewById(R.id.main_tab_layout);
         viewPager = rootView.findViewById(R.id.pager);
 
+        tabLayout.setTabIconTint(ColorStateList.valueOf(
+                ThemeHelper.resolveColorFromAttr(requireContext(), R.attr.colorAccent)));
         tabLayout.setupWithViewPager(viewPager);
         tabLayout.addOnTabSelectedListener(this);
 
@@ -92,7 +104,13 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
     public void onResume() {
         super.onResume();
 
-        if (hasTabsChanged) {
+        boolean youtubeRestrictedModeEnabled =
+                PreferenceManager.getDefaultSharedPreferences(getContext())
+                        .getBoolean(youtubeRestrictedModeEnabledKey, false);
+        if (previousYoutubeRestrictedModeEnabled != youtubeRestrictedModeEnabled) {
+            previousYoutubeRestrictedModeEnabled = youtubeRestrictedModeEnabled;
+            setupTabs();
+        } else if (hasTabsChanged) {
             setupTabs();
         }
     }

app/src/main/java/org/schabi/newpipe/fragments/list/channel/ChannelFragment.java

@@ -21,6 +21,7 @@ import android.widget.TextView;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.content.ContextCompat;
 
 import com.jakewharton.rxbinding2.view.RxView;
@@ -38,6 +39,7 @@ import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
 import org.schabi.newpipe.local.subscription.SubscriptionManager;
 import org.schabi.newpipe.player.playqueue.ChannelPlayQueue;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
+import org.schabi.newpipe.report.ErrorActivity;
 import org.schabi.newpipe.report.UserAction;
 import org.schabi.newpipe.util.AnimationUtils;
 import org.schabi.newpipe.util.ExtractorHelper;
@@ -45,6 +47,7 @@ import org.schabi.newpipe.util.ImageDisplayConstants;
 import org.schabi.newpipe.util.Localization;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.ShareUtils;
+import org.schabi.newpipe.util.ThemeHelper;
 
 import java.util.ArrayList;
 import java.util.Iterator;
@@ -65,7 +68,8 @@ import static org.schabi.newpipe.util.AnimationUtils.animateBackgroundColor;
 import static org.schabi.newpipe.util.AnimationUtils.animateTextColor;
 import static org.schabi.newpipe.util.AnimationUtils.animateView;
 
-public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
+public class ChannelFragment extends BaseListInfoFragment<ChannelInfo>
+        implements View.OnClickListener {
     private static final int BUTTON_DEBOUNCE_INTERVAL = 100;
     private final CompositeDisposable disposables = new CompositeDisposable();
     private Disposable subscribeButtonMonitor;
@@ -79,6 +83,8 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
     private ImageView headerChannelBanner;
     private ImageView headerAvatarView;
     private TextView headerTitleView;
+    private ImageView headerSubChannelAvatarView;
+    private TextView headerSubChannelTitleView;
     private TextView headerSubscribersTextView;
     private Button headerSubscribeButton;
     private View playlistCtrl;
@@ -156,7 +162,10 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         headerSubscribersTextView = headerRootLayout.findViewById(R.id.channel_subscriber_view);
         headerSubscribeButton = headerRootLayout.findViewById(R.id.channel_subscribe_button);
         playlistCtrl = headerRootLayout.findViewById(R.id.playlist_control);
-
+        headerSubChannelAvatarView =
+                headerRootLayout.findViewById(R.id.sub_channel_avatar_view);
+        headerSubChannelTitleView =
+                headerRootLayout.findViewById(R.id.sub_channel_title_view);
 
         headerPlayAllButton = headerRootLayout.findViewById(R.id.playlist_ctrl_play_all_button);
         headerPopupButton = headerRootLayout.findViewById(R.id.playlist_ctrl_play_popup_button);
@@ -165,6 +174,14 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         return headerRootLayout;
     }
 
+    @Override
+    protected void initListeners() {
+        super.initListeners();
+
+        headerSubChannelTitleView.setOnClickListener(this);
+        headerSubChannelAvatarView.setOnClickListener(this);
+    }
+
     /*//////////////////////////////////////////////////////////////////////////
     // Menu
     //////////////////////////////////////////////////////////////////////////*/
@@ -358,8 +375,8 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         int backgroundDuration = isButtonVisible ? 300 : 0;
         int textDuration = isButtonVisible ? 200 : 0;
 
-        int subscribeBackground = ContextCompat
-                .getColor(activity, R.color.subscribe_background_color);
+        int subscribeBackground = ThemeHelper
+                .resolveColorFromAttr(activity, R.attr.colorPrimary);
         int subscribeText = ContextCompat.getColor(activity, R.color.subscribe_text_color);
         int subscribedBackground = ContextCompat
                 .getColor(activity, R.color.subscribed_background_color);
@@ -394,6 +411,34 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         return ExtractorHelper.getChannelInfo(serviceId, url, forceLoad);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // OnClick
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void onClick(final View v) {
+        if (isLoading.get() || currentInfo == null) {
+            return;
+        }
+
+        switch (v.getId()) {
+            case R.id.sub_channel_avatar_view:
+            case R.id.sub_channel_title_view:
+                if (!TextUtils.isEmpty(currentInfo.getParentChannelUrl())) {
+                    try {
+                        NavigationHelper.openChannelFragment(getFragmentManager(),
+                                currentInfo.getServiceId(), currentInfo.getParentChannelUrl(),
+                                currentInfo.getParentChannelName());
+                    } catch (Exception e) {
+                        ErrorActivity.reportUiError((AppCompatActivity) getActivity(), e);
+                    }
+                } else if (DEBUG) {
+                    Log.i(TAG, "Can't open parent channel because we got no channel URL");
+                }
+                break;
+        }
+    }
+
     /*//////////////////////////////////////////////////////////////////////////
     // Contract
     //////////////////////////////////////////////////////////////////////////*/
@@ -404,6 +449,7 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
 
         IMAGE_LOADER.cancelDisplayTask(headerChannelBanner);
         IMAGE_LOADER.cancelDisplayTask(headerAvatarView);
+        IMAGE_LOADER.cancelDisplayTask(headerSubChannelAvatarView);
         animateView(headerSubscribeButton, false, 100);
     }
 
@@ -416,6 +462,8 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
                 ImageDisplayConstants.DISPLAY_BANNER_OPTIONS);
         IMAGE_LOADER.displayImage(result.getAvatarUrl(), headerAvatarView,
                 ImageDisplayConstants.DISPLAY_AVATAR_OPTIONS);
+        IMAGE_LOADER.displayImage(result.getParentChannelAvatarUrl(), headerSubChannelAvatarView,
+                ImageDisplayConstants.DISPLAY_AVATAR_OPTIONS);
 
         headerSubscribersTextView.setVisibility(View.VISIBLE);
         if (result.getSubscriberCount() >= 0) {
@@ -425,6 +473,17 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
             headerSubscribersTextView.setText(R.string.subscribers_count_not_available);
         }
 
+        if (!TextUtils.isEmpty(currentInfo.getParentChannelName())) {
+            headerSubChannelTitleView.setText(String.format(
+                            getString(R.string.channel_created_by),
+                            currentInfo.getParentChannelName())
+            );
+            headerSubChannelTitleView.setVisibility(View.VISIBLE);
+            headerSubChannelAvatarView.setVisibility(View.VISIBLE);
+        } else {
+            headerSubChannelTitleView.setVisibility(View.GONE);
+        }
+
         if (menuRssButton != null) {
             menuRssButton.setVisible(!TextUtils.isEmpty(result.getFeedUrl()));
         }

app/src/main/java/org/schabi/newpipe/fragments/list/search/SearchFragment.java

@@ -41,12 +41,12 @@ import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.search.SearchExtractor;
 import org.schabi.newpipe.extractor.search.SearchInfo;
-import org.schabi.newpipe.util.AndroidTvUtils;
 import org.schabi.newpipe.fragments.BackPressable;
 import org.schabi.newpipe.fragments.list.BaseListFragment;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.report.ErrorActivity;
 import org.schabi.newpipe.report.UserAction;
+import org.schabi.newpipe.util.AndroidTvUtils;
 import org.schabi.newpipe.util.AnimationUtils;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.ExtractorHelper;