Move things back to its original place

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

@@ -204,7 +204,7 @@ public class CheckForNewAppVersionTask extends AsyncTask<Void, Void, String> {
      *
      * @param versionName    Name of new version
      * @param apkLocationUrl Url with the new apk
-     * @param versionCode    V
+     * @param versionCode    Code of new version
      */
     private void compareAppVersionAndShowNotification(final String versionName,
                                                       final String apkLocationUrl,

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

@@ -86,35 +86,41 @@ public class DownloadDialog extends DialogFragment
     private static final String TAG = "DialogFragment";
     private static final boolean DEBUG = MainActivity.DEBUG;
     private static final int REQUEST_DOWNLOAD_SAVE_AS = 0x1230;
-    private final CompositeDisposable disposables = new CompositeDisposable();
+
     @State
-    protected StreamInfo currentInfo;
+    StreamInfo currentInfo;
     @State
-    protected StreamSizeWrapper<AudioStream> wrappedAudioStreams = StreamSizeWrapper.empty();
+    StreamSizeWrapper<AudioStream> wrappedAudioStreams = StreamSizeWrapper.empty();
     @State
-    protected StreamSizeWrapper<VideoStream> wrappedVideoStreams = StreamSizeWrapper.empty();
+    StreamSizeWrapper<VideoStream> wrappedVideoStreams = StreamSizeWrapper.empty();
     @State
-    protected StreamSizeWrapper<SubtitlesStream> wrappedSubtitleStreams = StreamSizeWrapper.empty();
+    StreamSizeWrapper<SubtitlesStream> wrappedSubtitleStreams = StreamSizeWrapper.empty();
     @State
-    protected int selectedVideoIndex = 0;
+    int selectedVideoIndex = 0;
     @State
-    protected int selectedAudioIndex = 0;
+    int selectedAudioIndex = 0;
     @State
-    protected int selectedSubtitleIndex = 0;
+    int selectedSubtitleIndex = 0;
+
     private StoredDirectoryHelper mainStorageAudio = null;
     private StoredDirectoryHelper mainStorageVideo = null;
     private DownloadManager downloadManager = null;
     private ActionMenuItemView okButton = null;
     private Context context;
     private boolean askForSavePath;
+
     private StreamItemAdapter<AudioStream, Stream> audioStreamsAdapter;
     private StreamItemAdapter<VideoStream, AudioStream> videoStreamsAdapter;
     private StreamItemAdapter<SubtitlesStream, Stream> subtitleStreamsAdapter;
+
+    private final CompositeDisposable disposables = new CompositeDisposable();
+
     private EditText nameEditText;
     private Spinner streamsSpinner;
     private RadioGroup radioStreamsGroup;
     private TextView threadsCountTextView;
     private SeekBar threadsSeekBar;
+
     private SharedPreferences prefs;
 
     public static DownloadDialog newInstance(final StreamInfo info) {

app/src/main/java/org/schabi/newpipe/fragments/detail/VideoDetailFragment.java

@@ -109,54 +109,55 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         implements BackPressable, SharedPreferences.OnSharedPreferenceChangeListener,
         View.OnClickListener, View.OnLongClickListener {
     public static final String AUTO_PLAY = "auto_play";
+
+    private int updateFlags = 0;
     private static final int RELATED_STREAMS_UPDATE_FLAG = 0x1;
     private static final int RESOLUTIONS_MENU_UPDATE_FLAG = 0x2;
     private static final int TOOLBAR_ITEMS_UPDATE_FLAG = 0x4;
     private static final int COMMENTS_UPDATE_FLAG = 0x8;
-    private static final String COMMENTS_TAB_TAG = "COMMENTS";
+
-    private static final String RELATED_TAB_TAG = "NEXT VIDEO";
+    private boolean autoPlayEnabled;
-    private static final String EMPTY_TAB_TAG = "EMPTY TAB";
+    private boolean showRelatedStreams;
-    private static final String INFO_KEY = "info_key";
+    private boolean showComments;
-    private static final String STACK_KEY = "stack_key";
+    private String selectedTabTag;
-    /**
+
-     * Stack that contains the "navigation history".<br>
-     * The peek is the current video.
-     */
-    private final LinkedList<StackItem> stack = new LinkedList<>();
     @State
     protected int serviceId = Constants.NO_SERVICE_ID;
     @State
     protected String name;
     @State
     protected String url;
-    private int updateFlags = 0;
-    private boolean autoPlayEnabled;
-    private boolean showRelatedStreams;
-    private boolean showComments;
-    private String selectedTabTag;
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Views
-    //////////////////////////////////////////////////////////////////////////*/
     private StreamInfo currentInfo;
     private Disposable currentWorker;
     @NonNull
     private CompositeDisposable disposables = new CompositeDisposable();
     @Nullable
     private Disposable positionSubscriber = null;
+
     private List<VideoStream> sortedVideoStreams;
     private int selectedVideoStreamIndex = -1;
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Views
+    //////////////////////////////////////////////////////////////////////////*/
+
     private Menu menu;
+
     private Spinner spinnerToolbar;
+
     private LinearLayout contentRootLayoutHiding;
+
     private View thumbnailBackgroundButton;
     private ImageView thumbnailImageView;
     private ImageView thumbnailPlayButton;
     private AnimatedProgressBar positionView;
+
     private View videoTitleRoot;
     private TextView videoTitleTextView;
     private ImageView videoTitleToggleArrow;
     private TextView videoCountView;
+
     private TextView detailControlsBackground;
     private TextView detailControlsPopup;
     private TextView detailControlsAddToPlaylist;
@@ -164,30 +165,42 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
     private TextView appendControlsDetail;
     private TextView detailDurationView;
     private TextView detailPositionView;
+
     private LinearLayout videoDescriptionRootLayout;
     private TextView videoUploadDateView;
     private TextView videoDescriptionView;
+
     private View uploaderRootLayout;
     private TextView uploaderTextView;
     private ImageView uploaderThumb;
+
     private TextView thumbsUpTextView;
     private ImageView thumbsUpImageView;
     private TextView thumbsDownTextView;
     private ImageView thumbsDownImageView;
     private TextView thumbsDisabledTextView;
+
     private AppBarLayout appBarLayout;
     private ViewPager viewPager;
-
-
-    /*////////////////////////////////////////////////////////////////////////*/
     private TabAdaptor pageAdapter;
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Fragment's Lifecycle
-    //////////////////////////////////////////////////////////////////////////*/
     private TabLayout tabLayout;
     private FrameLayout relatedStreamsLayout;
 
+    /*////////////////////////////////////////////////////////////////////////*/
+
+    private static final String COMMENTS_TAB_TAG = "COMMENTS";
+    private static final String RELATED_TAB_TAG = "NEXT VIDEO";
+    private static final String EMPTY_TAB_TAG = "EMPTY TAB";
+
+    private static final String INFO_KEY = "info_key";
+    private static final String STACK_KEY = "stack_key";
+
+    /**
+     * Stack that contains the "navigation history".<br>
+     * The peek is the current video.
+     */
+    private final LinkedList<StackItem> stack = new LinkedList<>();
+
     public static VideoDetailFragment getInstance(final int serviceId, final String videoUrl,
                                                   final String name) {
         VideoDetailFragment instance = new VideoDetailFragment();
@@ -195,6 +208,11 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         return instance;
     }
 
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Fragment's Lifecycle
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onCreate(final Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -285,10 +303,6 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         disposables = null;
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // State Saving
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onDestroyView() {
         if (DEBUG) {
@@ -336,6 +350,10 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // State Saving
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onSaveInstanceState(final Bundle outState) {
         super.onSaveInstanceState(outState);
@@ -351,10 +369,6 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         outState.putSerializable(STACK_KEY, stack);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // OnClick
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     protected void onRestoreInstanceState(@NonNull final Bundle savedState) {
         super.onRestoreInstanceState(savedState);
@@ -371,9 +385,12 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
             //noinspection unchecked
             stack.addAll((Collection<? extends StackItem>) serializable);
         }
-
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // OnClick
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onClick(final View v) {
         if (isLoading.get() || currentInfo == null) {
@@ -449,10 +466,6 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         return true;
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Init
-    //////////////////////////////////////////////////////////////////////////*/
-
     private void toggleTitleAndDescription() {
         if (videoDescriptionRootLayout.getVisibility() == View.VISIBLE) {
             videoTitleTextView.setMaxLines(1);
@@ -465,6 +478,10 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Init
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     protected void initViews(final View rootView, final Bundle savedInstanceState) {
         super.initViews(rootView, savedInstanceState);
@@ -553,11 +570,6 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         };
     }
 
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Menu
-    //////////////////////////////////////////////////////////////////////////*/
-
     private void initThumbnailViews(@NonNull final StreamInfo info) {
         thumbnailImageView.setImageResource(R.drawable.dummy_thumbnail_dark);
         if (!TextUtils.isEmpty(info.getThumbnailUrl())) {
@@ -581,6 +593,10 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Menu
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onCreateOptionsMenu(final Menu m, final MenuInflater inflater) {
         this.menu = m;
@@ -654,10 +670,6 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         Log.e("-----", "missing code");
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // OwnStack
-    //////////////////////////////////////////////////////////////////////////*/
-
     private void setupActionBar(final StreamInfo info) {
         if (DEBUG) {
             Log.d(TAG, "setupActionBarHandler() called with: info = [" + info + "]");
@@ -687,7 +699,11 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         });
     }
 
-    public void pushToStack(final int sid, final String videoUrl, final String title) {
+    /*//////////////////////////////////////////////////////////////////////////
+    // OwnStack
+    //////////////////////////////////////////////////////////////////////////*/
+
+    private void pushToStack(final int sid, final String videoUrl, final String title) {
         if (DEBUG) {
             Log.d(TAG, "pushToStack() called with: serviceId = ["
                     + sid + "], videoUrl = [" + videoUrl + "], title = [" + title + "]");
@@ -706,7 +722,7 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         stack.push(new StackItem(sid, videoUrl, title));
     }
 
-    public void setTitleToUrl(final int sid, final String videoUrl, final String title) {
+    private void setTitleToUrl(final int sid, final String videoUrl, final String title) {
         if (title != null && !title.isEmpty()) {
             for (StackItem stackItem : stack) {
                 if (stack.peek().getServiceId() == sid
@@ -755,7 +771,7 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
         prepareAndLoadInfo();
     }
 
-    public void prepareAndHandleInfo(final StreamInfo info, final boolean scrollToTop) {
+    private void prepareAndHandleInfo(final StreamInfo info, final boolean scrollToTop) {
         if (DEBUG) {
             Log.d(TAG, "prepareAndHandleInfo() called with: "
                     + "info = [" + info + "], scrollToTop = [" + scrollToTop + "]");
@@ -774,7 +790,7 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo>
 
     }
 
-    protected void prepareAndLoadInfo() {
+    private void prepareAndLoadInfo() {
         appBarLayout.setExpanded(true, true);
         pushToStack(serviceId, url, name);
         startLoading(false);

app/src/main/java/org/schabi/newpipe/fragments/list/BaseListFragment.java

@@ -44,20 +44,22 @@ import static org.schabi.newpipe.util.AnimationUtils.animateView;
 public abstract class BaseListFragment<I, N> extends BaseStateFragment<I>
         implements ListViewContract<I, N>, StateSaver.WriteRead,
         SharedPreferences.OnSharedPreferenceChangeListener {
+    private static final int LIST_MODE_UPDATE_FLAG = 0x32;
+    protected StateSaver.SavedState savedState;
+
+    private boolean useDefaultStateSaving = true;
+    private int updateFlags = 0;
+
     /*//////////////////////////////////////////////////////////////////////////
     // Views
     //////////////////////////////////////////////////////////////////////////*/
 
-    private static final int LIST_MODE_UPDATE_FLAG = 0x32;
     protected InfoListAdapter infoListAdapter;
     protected RecyclerView itemsList;
-    protected StateSaver.SavedState savedState;
 
     /*//////////////////////////////////////////////////////////////////////////
     // LifeCycle
     //////////////////////////////////////////////////////////////////////////*/
-    private boolean useDefaultStateSaving = true;
-    private int updateFlags = 0;
 
     @Override
     public void onAttach(final Context context) {
@@ -81,10 +83,6 @@ public abstract class BaseListFragment<I, N> extends BaseStateFragment<I>
                 .registerOnSharedPreferenceChangeListener(this);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // State Saving
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onDestroy() {
         super.onDestroy();
@@ -111,6 +109,10 @@ public abstract class BaseListFragment<I, N> extends BaseStateFragment<I>
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // State Saving
+    //////////////////////////////////////////////////////////////////////////*/
+
     /**
      * If the default implementation of {@link StateSaver.WriteRead} should be used.
      *

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

@@ -70,6 +70,7 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
     /*//////////////////////////////////////////////////////////////////////////
     // Views
     //////////////////////////////////////////////////////////////////////////*/
+
     private SubscriptionManager subscriptionManager;
     private View headerRootLayout;
     private ImageView headerChannelBanner;
@@ -83,10 +84,6 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
     private LinearLayout headerBackgroundButton;
     private MenuItem menuRssButton;
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // LifeCycle
-    //////////////////////////////////////////////////////////////////////////*/
-
     public static ChannelFragment getInstance(final int serviceId, final String url,
                                               final String name) {
         ChannelFragment instance = new ChannelFragment();
@@ -104,6 +101,10 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // LifeCycle
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onAttach(final Context context) {
         super.onAttach(context);
@@ -117,10 +118,6 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         return inflater.inflate(R.layout.fragment_channel, container, false);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Init
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onDestroy() {
         super.onDestroy();
@@ -133,7 +130,7 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
     }
 
     /*//////////////////////////////////////////////////////////////////////////
-    // Menu
+    // Init
     //////////////////////////////////////////////////////////////////////////*/
 
     protected View getListHeader() {
@@ -154,6 +151,10 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         return headerRootLayout;
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Menu
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
         super.onCreateOptionsMenu(menu, inflater);
@@ -179,10 +180,6 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         }
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Channel Subscription
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public boolean onOptionsItemSelected(final MenuItem item) {
         switch (item.getItemId()) {
@@ -208,6 +205,10 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         return true;
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Channel Subscription
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void monitorSubscription(final ChannelInfo info) {
         final Consumer<Throwable> onError = (Throwable throwable) -> {
             animateView(headerSubscribeButton, false, 100);

app/src/main/java/org/schabi/newpipe/fragments/list/playlist/PlaylistFragment.java

@@ -294,7 +294,7 @@ public class PlaylistFragment extends BaseListInfoFragment<PlaylistInfo> {
                     }
                 });
             }
-        } else { // Else say we have no uploader
+        } else { // Otherwise say we have no uploader
             headerUploaderName.setText(R.string.playlist_no_uploader);
         }
 

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

@@ -80,7 +80,6 @@ import static org.schabi.newpipe.util.AnimationUtils.animateView;
 
 public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.InfoItemsPage>
         implements BackPressable {
-
     /*//////////////////////////////////////////////////////////////////////////
     // Search
     //////////////////////////////////////////////////////////////////////////*/
@@ -97,35 +96,45 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
      */
     private static final int SUGGESTIONS_DEBOUNCE = 120; //ms
     private final PublishSubject<String> suggestionPublisher = PublishSubject.create();
-    private final CompositeDisposable disposables = new CompositeDisposable();
+
     @State
-    protected int filterItemCheckedId = -1;
+    int filterItemCheckedId = -1;
+
     @State
     protected int serviceId = Constants.NO_SERVICE_ID;
-    // this three represet the current search query
+
+    // these three represents the current search query
     @State
-    protected String searchString;
+    String searchString;
+
     /**
-     * No content filter should add like contentfilter = all
+     * No content filter should add like contentFilter = all
      * be aware of this when implementing an extractor.
      */
     @State
-    protected String[] contentFilter = new String[0];
+    String[] contentFilter = new String[0];
+
     @State
-    protected String sortFilter;
+    String sortFilter;
-    // these represtent the last search
+
+    // these represents the last search
     @State
-    protected String lastSearchedString;
+    String lastSearchedString;
+
     @State
-    protected boolean wasSearchFocused = false;
+    boolean wasSearchFocused = false;
+
     private Map<Integer, String> menuItemToFilterName;
     private StreamingService service;
     private String currentPageUrl;
     private String nextPageUrl;
     private String contentCountry;
     private boolean isSuggestionsEnabled = true;
+
     private Disposable searchDisposable;
     private Disposable suggestionDisposable;
+    private final CompositeDisposable disposables = new CompositeDisposable();
+
     private SuggestionListAdapter suggestionListAdapter;
     private HistoryRecordManager historyRecordManager;
 
@@ -141,6 +150,7 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
     private RecyclerView suggestionsRecyclerView;
 
     /*////////////////////////////////////////////////////////////////////////*/
+
     private TextWatcher textWatcher;
 
     public static SearchFragment getInstance(final int serviceId, final String searchString) {
@@ -154,10 +164,6 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         return searchFragment;
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Fragment's LifeCycle
-    //////////////////////////////////////////////////////////////////////////*/
-
     /**
      * Set wasLoading to true so when the fragment onResume is called, the initial search is done.
      */
@@ -165,6 +171,10 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         wasLoading.set(true);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Fragment's LifeCycle
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onAttach(final Context context) {
         super.onAttach(context);
@@ -287,10 +297,6 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         }
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Init
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
         switch (requestCode) {
@@ -310,7 +316,7 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
     }
 
     /*//////////////////////////////////////////////////////////////////////////
-    // State Saving
+    // Init
     //////////////////////////////////////////////////////////////////////////*/
 
     @Override
@@ -344,6 +350,10 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         searchClear = searchToolbarContainer.findViewById(R.id.toolbar_search_clear);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // State Saving
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void writeTo(final Queue<Object> objectsToSave) {
         super.writeTo(objectsToSave);
@@ -358,10 +368,6 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         nextPageUrl = (String) savedObjects.poll();
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Init's
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onSaveInstanceState(final Bundle bundle) {
         searchString = searchEditText != null
@@ -371,7 +377,7 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
     }
 
     /*//////////////////////////////////////////////////////////////////////////
-    // Menu
+    // Init's
     //////////////////////////////////////////////////////////////////////////*/
 
     @Override
@@ -390,6 +396,10 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Menu
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
         super.onCreateOptionsMenu(menu, inflater);
@@ -430,10 +440,6 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         return true;
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Search
-    //////////////////////////////////////////////////////////////////////////*/
-
     private void restoreFilterChecked(final Menu menu, final int itemId) {
         if (itemId != -1) {
             MenuItem item = menu.findItem(itemId);
@@ -445,6 +451,10 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Search
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void showSearchOnStart() {
         if (DEBUG) {
             Log.d(TAG, "showSearchOnStart() called, searchQuery → "

app/src/main/java/org/schabi/newpipe/fragments/list/videos/RelatedVideosFragment.java

@@ -34,16 +34,15 @@ public class RelatedVideosFragment extends BaseListInfoFragment<RelatedStreamInf
     private static final String INFO_KEY = "related_info_key";
     private CompositeDisposable disposables = new CompositeDisposable();
     private RelatedStreamInfo relatedStreamInfo;
+
     /*//////////////////////////////////////////////////////////////////////////
     // Views
     //////////////////////////////////////////////////////////////////////////*/
+
     private View headerRootLayout;
     private Switch aSwitch;
-    private boolean mIsVisibleToUser = false;
 
-    /*//////////////////////////////////////////////////////////////////////////
+    private boolean mIsVisibleToUser = false;
-    // LifeCycle
-    //////////////////////////////////////////////////////////////////////////*/
 
     public static RelatedVideosFragment getInstance(final StreamInfo info) {
         RelatedVideosFragment instance = new RelatedVideosFragment();
@@ -57,6 +56,10 @@ public class RelatedVideosFragment extends BaseListInfoFragment<RelatedStreamInf
         mIsVisibleToUser = isVisibleToUser;
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // LifeCycle
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onAttach(final Context context) {
         super.onAttach(context);
@@ -141,10 +144,6 @@ public class RelatedVideosFragment extends BaseListInfoFragment<RelatedStreamInf
         }
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // OnError
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void handleNextItems(final ListExtractor.InfoItemsPage result) {
         super.handleNextItems(result);
@@ -159,7 +158,7 @@ public class RelatedVideosFragment extends BaseListInfoFragment<RelatedStreamInf
     }
 
     /*//////////////////////////////////////////////////////////////////////////
-    // Utils
+    // OnError
     //////////////////////////////////////////////////////////////////////////*/
 
     @Override
@@ -174,6 +173,10 @@ public class RelatedVideosFragment extends BaseListInfoFragment<RelatedStreamInf
         return true;
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Utils
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void setTitle(final String title) {
         return;

app/src/main/java/org/schabi/newpipe/local/bookmark/BookmarkFragment.java

@@ -92,10 +92,6 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         return inflater.inflate(R.layout.fragment_bookmarks, container, false);
     }
 
-    ///////////////////////////////////////////////////////////////////////////
-    // Fragment LifeCycle - Views
-    ///////////////////////////////////////////////////////////////////////////
-
     @Override
     public void setUserVisibleHint(final boolean isVisibleToUser) {
         super.setUserVisibleHint(isVisibleToUser);
@@ -104,15 +100,15 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         }
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Fragment LifeCycle - Views
+    ///////////////////////////////////////////////////////////////////////////
+
     @Override
     protected void initViews(final View rootView, final Bundle savedInstanceState) {
         super.initViews(rootView, savedInstanceState);
     }
 
-    ///////////////////////////////////////////////////////////////////////////
-    // Fragment LifeCycle - Loading
-    ///////////////////////////////////////////////////////////////////////////
-
     @Override
     protected void initListeners() {
         super.initListeners();
@@ -149,7 +145,7 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
     }
 
     ///////////////////////////////////////////////////////////////////////////
-    // Fragment LifeCycle - Destruction
+    // Fragment LifeCycle - Loading
     ///////////////////////////////////////////////////////////////////////////
 
     @Override
@@ -163,6 +159,10 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
                 .subscribe(getPlaylistsSubscriber());
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Fragment LifeCycle - Destruction
+    ///////////////////////////////////////////////////////////////////////////
+
     @Override
     public void onPause() {
         super.onPause();
@@ -183,10 +183,6 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         databaseSubscription = null;
     }
 
-    ///////////////////////////////////////////////////////////////////////////
-    // Subscriptions Loader
-    ///////////////////////////////////////////////////////////////////////////
-
     @Override
     public void onDestroy() {
         super.onDestroy();
@@ -200,6 +196,10 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         itemsListState = null;
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Subscriptions Loader
+    ///////////////////////////////////////////////////////////////////////////
+
     private Subscriber<List<PlaylistLocalItem>> getPlaylistsSubscriber() {
         return new Subscriber<List<PlaylistLocalItem>>() {
             @Override
@@ -229,9 +229,6 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
             public void onComplete() { }
         };
     }
-    ///////////////////////////////////////////////////////////////////////////
-    // Fragment Error Handling
-    ///////////////////////////////////////////////////////////////////////////
 
     @Override
     public void handleResult(@NonNull final List<PlaylistLocalItem> result) {
@@ -252,6 +249,10 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         hideLoading();
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Fragment Error Handling
+    ///////////////////////////////////////////////////////////////////////////
+
     @Override
     protected boolean onError(final Throwable exception) {
         if (super.onError(exception)) {
@@ -263,10 +264,6 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         return true;
     }
 
-    ///////////////////////////////////////////////////////////////////////////
-    // Utils
-    ///////////////////////////////////////////////////////////////////////////
-
     @Override
     protected void resetFragment() {
         super.resetFragment();
@@ -275,6 +272,10 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         }
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Utils
+    ///////////////////////////////////////////////////////////////////////////
+
     private void showRemoteDeleteDialog(final PlaylistRemoteEntity item) {
         showDeleteDialog(item.getName(), remotePlaylistManager.deletePlaylist(item.getUid()));
     }

app/src/main/java/org/schabi/newpipe/local/history/StatisticsPlaylistFragment.java

@@ -80,16 +80,16 @@ public class StatisticsPlaylistFragment
         }
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Fragment LifeCycle - Creation
+    ///////////////////////////////////////////////////////////////////////////
+
     @Override
     public void onCreate(final Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         recordManager = new HistoryRecordManager(getContext());
     }
 
-    ///////////////////////////////////////////////////////////////////////////
-    // Fragment LifeCycle - Creation
-    ///////////////////////////////////////////////////////////////////////////
-
     @Override
     public View onCreateView(@NonNull final LayoutInflater inflater,
                              @Nullable final ViewGroup container,
@@ -111,6 +111,10 @@ public class StatisticsPlaylistFragment
         inflater.inflate(R.menu.menu_history, menu);
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Fragment LifeCycle - Views
+    ///////////////////////////////////////////////////////////////////////////
+
     @Override
     protected void initViews(final View rootView, final Bundle savedInstanceState) {
         super.initViews(rootView, savedInstanceState);
@@ -119,10 +123,6 @@ public class StatisticsPlaylistFragment
         }
     }
 
-    ///////////////////////////////////////////////////////////////////////////
-    // Fragment LifeCycle - Views
-    ///////////////////////////////////////////////////////////////////////////
-
     @Override
     protected View getListHeader() {
         final View headerRootLayout = activity.getLayoutInflater()
@@ -210,6 +210,10 @@ public class StatisticsPlaylistFragment
         return true;
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Fragment LifeCycle - Loading
+    ///////////////////////////////////////////////////////////////////////////
+
     @Override
     public void startLoading(final boolean forceLoad) {
         super.startLoading(forceLoad);
@@ -219,7 +223,7 @@ public class StatisticsPlaylistFragment
     }
 
     ///////////////////////////////////////////////////////////////////////////
-    // Fragment LifeCycle - Loading
+    // Fragment LifeCycle - Destruction
     ///////////////////////////////////////////////////////////////////////////
 
     @Override
@@ -228,10 +232,6 @@ public class StatisticsPlaylistFragment
         itemsListState = itemsList.getLayoutManager().onSaveInstanceState();
     }
 
-    ///////////////////////////////////////////////////////////////////////////
-    // Fragment LifeCycle - Destruction
-    ///////////////////////////////////////////////////////////////////////////
-
     @Override
     public void onDestroyView() {
         super.onDestroyView();
@@ -262,6 +262,10 @@ public class StatisticsPlaylistFragment
         itemsListState = null;
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Statistics Loader
+    ///////////////////////////////////////////////////////////////////////////
+
     private Subscriber<List<StreamStatisticsEntry>> getHistoryObserver() {
         return new Subscriber<List<StreamStatisticsEntry>>() {
             @Override
@@ -294,10 +298,6 @@ public class StatisticsPlaylistFragment
         };
     }
 
-    ///////////////////////////////////////////////////////////////////////////
-    // Statistics Loader
-    ///////////////////////////////////////////////////////////////////////////
-
     @Override
     public void handleResult(@NonNull final List<StreamStatisticsEntry> result) {
         super.handleResult(result);
@@ -331,6 +331,10 @@ public class StatisticsPlaylistFragment
         hideLoading();
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Fragment Error Handling
+    ///////////////////////////////////////////////////////////////////////////
+
     @Override
     protected void resetFragment() {
         super.resetFragment();
@@ -338,9 +342,6 @@ public class StatisticsPlaylistFragment
             databaseSubscription.cancel();
         }
     }
-    ///////////////////////////////////////////////////////////////////////////
-    // Fragment Error Handling
-    ///////////////////////////////////////////////////////////////////////////
 
     @Override
     protected boolean onError(final Throwable exception) {
@@ -353,6 +354,10 @@ public class StatisticsPlaylistFragment
         return true;
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Utils
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void toggleSortMode() {
         if (sortMode == StatisticSortMode.LAST_PLAYED) {
             sortMode = StatisticSortMode.MOST_PLAYED;
@@ -370,10 +375,6 @@ public class StatisticsPlaylistFragment
         startLoading(true);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Utils
-    //////////////////////////////////////////////////////////////////////////*/
-
     private PlayQueue getPlayQueueStartingAt(final StreamStatisticsEntry infoItem) {
         return getPlayQueue(Math.max(itemListAdapter.getItemsList().indexOf(infoItem), 0));
     }

app/src/main/java/org/schabi/newpipe/local/playlist/LocalPlaylistFragment.java

@@ -56,12 +56,14 @@ public class LocalPlaylistFragment extends BaseLocalListFragment<List<PlaylistSt
     // Save the list 10 seconds after the last change occurred
     private static final long SAVE_DEBOUNCE_MILLIS = 10000;
     private static final int MINIMUM_INITIAL_DRAG_VELOCITY = 12;
+
     @State
     protected Long playlistId;
     @State
     protected String name;
     @State
-    protected Parcelable itemsListState;
+    Parcelable itemsListState;
+
     private View headerRootLayout;
     private TextView headerTitleView;
     private TextView headerStreamCount;

app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionsImportFragment.java

@@ -47,18 +47,20 @@ public class SubscriptionsImportFragment extends BaseFragment {
     private static final int REQUEST_IMPORT_FILE_CODE = 666;
 
     @State
-    protected int currentServiceId = Constants.NO_SERVICE_ID;
+    int currentServiceId = Constants.NO_SERVICE_ID;
 
     private List<SubscriptionExtractor.ContentSource> supportedSources;
     private String relatedUrl;
+
     @StringRes
     private int instructionsString;
-    private TextView infoTextView;
-    private EditText inputText;
 
     /*//////////////////////////////////////////////////////////////////////////
     // Views
     //////////////////////////////////////////////////////////////////////////*/
+
+    private TextView infoTextView;
+    private EditText inputText;
     private Button inputButton;
 
     public static SubscriptionsImportFragment getInstance(final int serviceId) {
@@ -67,7 +69,7 @@ public class SubscriptionsImportFragment extends BaseFragment {
         return instance;
     }
 
-    public void setInitialData(final int serviceId) {
+    private void setInitialData(final int serviceId) {
         this.currentServiceId = serviceId;
     }
 

app/src/main/java/org/schabi/newpipe/local/subscription/services/BaseImportExportService.java

@@ -53,9 +53,16 @@ import io.reactivex.processors.PublishProcessor;
 
 public abstract class BaseImportExportService extends Service {
     protected final String TAG = this.getClass().getSimpleName();
-    private static final int NOTIFICATION_SAMPLING_PERIOD = 2500;
+
     protected final CompositeDisposable disposables = new CompositeDisposable();
     protected final PublishProcessor<String> notificationUpdater = PublishProcessor.create();
+
+    protected NotificationManagerCompat notificationManager;
+    protected NotificationCompat.Builder notificationBuilder;
+    protected SubscriptionManager subscriptionManager;
+
+    private static final int NOTIFICATION_SAMPLING_PERIOD = 2500;
+
     protected final AtomicInteger currentProgress = new AtomicInteger(-1);
     protected final AtomicInteger maxProgress = new AtomicInteger(-1);
     protected final ImportExportEventListener eventListener = new ImportExportEventListener() {
@@ -71,13 +78,7 @@ public abstract class BaseImportExportService extends Service {
             notificationUpdater.onNext(itemName);
         }
     };
-    protected NotificationManagerCompat notificationManager;
-    protected NotificationCompat.Builder notificationBuilder;
-    protected SubscriptionManager subscriptionManager;
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Notification Impl
-    //////////////////////////////////////////////////////////////////////////*/
     protected Toast toast;
 
     @Nullable
@@ -103,6 +104,10 @@ public abstract class BaseImportExportService extends Service {
         disposables.clear();
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Notification Impl
+    //////////////////////////////////////////////////////////////////////////*/
+
     protected abstract int getNotificationId();
 
     @StringRes

app/src/main/java/org/schabi/newpipe/local/subscription/services/SubscriptionsImportService.java

@@ -67,15 +67,18 @@ public class SubscriptionsImportService extends BaseImportExportService {
      */
     public static final String IMPORT_COMPLETE_ACTION = "org.schabi.newpipe.local.subscription"
             + ".services.SubscriptionsImportService.IMPORT_COMPLETE";
+
     /**
      * How many extractions running in parallel.
      */
     public static final int PARALLEL_EXTRACTIONS = 8;
+
     /**
      * Number of items to buffer to mass-insert in the subscriptions table,
      * this leads to a better performance as we can then use db transactions.
      */
     public static final int BUFFER_COUNT_BEFORE_INSERT = 50;
+
     private Subscription subscription;
     private int currentMode;
     private int currentServiceId;
@@ -131,10 +134,6 @@ public class SubscriptionsImportService extends BaseImportExportService {
         return 4568;
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Imports
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public int getTitle() {
         return R.string.import_ongoing;
@@ -148,6 +147,10 @@ public class SubscriptionsImportService extends BaseImportExportService {
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Imports
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void startImport() {
         showToast(R.string.import_ongoing);
 

app/src/main/java/org/schabi/newpipe/player/BasePlayer.java

@@ -99,10 +99,22 @@ import static com.google.android.exoplayer2.Player.DISCONTINUITY_REASON_SEEK_ADJ
 @SuppressWarnings({"WeakerAccess"})
 public abstract class BasePlayer implements
         Player.EventListener, PlaybackListener, ImageLoadingListener {
-
     public static final boolean DEBUG = !BuildConfig.BUILD_TYPE.equals("release");
     @NonNull
     public static final String TAG = "BasePlayer";
+
+    public static final int STATE_PREFLIGHT = -1;
+    public static final int STATE_BLOCKED = 123;
+    public static final int STATE_PLAYING = 124;
+    public static final int STATE_BUFFERING = 125;
+    public static final int STATE_PAUSED = 126;
+    public static final int STATE_PAUSED_SEEK = 127;
+    public static final int STATE_COMPLETED = 128;
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Intent
+    //////////////////////////////////////////////////////////////////////////*/
+
     @NonNull
     public static final String REPEAT_MODE = "repeat_mode";
     @NonNull
@@ -123,26 +135,43 @@ public abstract class BasePlayer implements
     public static final String START_PAUSED = "start_paused";
     @NonNull
     public static final String SELECT_ON_APPEND = "select_on_append";
-    /*//////////////////////////////////////////////////////////////////////////
-    // Intent
-    //////////////////////////////////////////////////////////////////////////*/
     @NonNull
     public static final String IS_MUTED = "is_muted";
-    public static final int STATE_PREFLIGHT = -1;
-    public static final int STATE_BLOCKED = 123;
-    public static final int STATE_PLAYING = 124;
-    public static final int STATE_BUFFERING = 125;
-    public static final int STATE_PAUSED = 126;
-    public static final int STATE_PAUSED_SEEK = 127;
-    public static final int STATE_COMPLETED = 128;
-    protected static final float[] PLAYBACK_SPEEDS = {0.5f, 0.75f, 1f, 1.25f, 1.5f, 1.75f, 2f};
-    protected static final int PLAY_PREV_ACTIVATION_LIMIT_MILLIS = 5000; // 5 seconds
-    protected static final int PROGRESS_LOOP_INTERVAL_MILLIS = 500;
 
     /*//////////////////////////////////////////////////////////////////////////
     // Playback
     //////////////////////////////////////////////////////////////////////////*/
-    protected static final int RECOVERY_SKIP_THRESHOLD_MILLIS = 3000; // 3 seconds
+
+    protected static final float[] PLAYBACK_SPEEDS = {0.5f, 0.75f, 1f, 1.25f, 1.5f, 1.75f, 2f};
+
+    protected PlayQueue playQueue;
+    protected PlayQueueAdapter playQueueAdapter;
+
+    @Nullable
+    protected MediaSourceManager playbackManager;
+
+    @Nullable
+    private PlayQueueItem currentItem;
+    @Nullable
+    private MediaSourceTag currentMetadata;
+    @Nullable
+    private Bitmap currentThumbnail;
+
+    @Nullable
+    protected Toast errorToast;
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Player
+    //////////////////////////////////////////////////////////////////////////*/
+
+    protected static final int PLAY_PREV_ACTIVATION_LIMIT_MILLIS = 5000; // 5 seconds
+    protected static final int PROGRESS_LOOP_INTERVAL_MILLIS = 500;
+
+    protected SimpleExoPlayer simpleExoPlayer;
+    protected AudioReactor audioReactor;
+    protected MediaSessionManager mediaSessionManager;
+
+
     @NonNull
     protected final Context context;
     @NonNull
@@ -158,39 +187,17 @@ public abstract class BasePlayer implements
     @NonNull
     private final LoadControl loadControl;
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Player
-    //////////////////////////////////////////////////////////////////////////*/
     @NonNull
     private final RenderersFactory renderFactory;
     @NonNull
     private final SerialDisposable progressUpdateReactor;
     @NonNull
     private final CompositeDisposable databaseUpdateReactor;
-    protected PlayQueue playQueue;
-    protected PlayQueueAdapter playQueueAdapter;
-    @Nullable
-    protected MediaSourceManager playbackManager;
-    @Nullable
-    protected Toast errorToast;
-    protected SimpleExoPlayer simpleExoPlayer;
 
-    //////////////////////////////////////////////////////////////////////////*/
-    protected AudioReactor audioReactor;
-    protected MediaSessionManager mediaSessionManager;
-    protected int currentState = STATE_PREFLIGHT;
-    @Nullable
-    private PlayQueueItem currentItem;
-    @Nullable
-    private MediaSourceTag currentMetadata;
-    @Nullable
-    private Bitmap currentThumbnail;
     private boolean isPrepared = false;
     private Disposable stateLoader;
 
-    /*//////////////////////////////////////////////////////////////////////////
+    protected int currentState = STATE_PREFLIGHT;
-    // Thumbnail Loading
-    //////////////////////////////////////////////////////////////////////////*/
 
     public BasePlayer(@NonNull final Context context) {
         this.context = context;
@@ -247,8 +254,7 @@ public abstract class BasePlayer implements
         registerBroadcastReceiver();
     }
 
-    public void initListeners() {
+    public void initListeners() { }
-    }
 
     public void handleIntent(final Intent intent) {
         if (DEBUG) {
@@ -324,10 +330,6 @@ public abstract class BasePlayer implements
                 /*playOnInit=*/!intent.getBooleanExtra(START_PAUSED, false), isMuted);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Broadcast Receiver
-    //////////////////////////////////////////////////////////////////////////*/
-
     protected void initPlayback(@NonNull final PlayQueue queue,
                                 @Player.RepeatMode final int repeatMode,
                                 final float playbackSpeed,
@@ -398,9 +400,12 @@ public abstract class BasePlayer implements
 
         databaseUpdateReactor.clear();
         progressUpdateReactor.set(null);
-
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Thumbnail Loading
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void initThumbnail(final String url) {
         if (DEBUG) {
             Log.d(TAG, "Thumbnail - initThumbnail() called");
@@ -413,10 +418,6 @@ public abstract class BasePlayer implements
                 .loadImage(url, ImageDisplayConstants.DISPLAY_THUMBNAIL_OPTIONS, this);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // States Implementation
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onLoadingStarted(final String imageUri, final View view) {
         if (DEBUG) {
@@ -453,6 +454,10 @@ public abstract class BasePlayer implements
         currentThumbnail = null;
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Broadcast Receiver
+    //////////////////////////////////////////////////////////////////////////*/
+
     /**
      * Add your action in the intentFilter.
      *
@@ -488,6 +493,10 @@ public abstract class BasePlayer implements
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // States Implementation
+    //////////////////////////////////////////////////////////////////////////*/
+
     public void changeState(final int state) {
         if (DEBUG) {
             Log.d(TAG, "changeState() called with: state = [" + state + "]");
@@ -1328,6 +1337,7 @@ public abstract class BasePlayer implements
             playQueue.append(autoQueue.getStreams());
         }
     }
+
     /*//////////////////////////////////////////////////////////////////////////
     // Getters and Setters
     //////////////////////////////////////////////////////////////////////////*/

app/src/main/java/org/schabi/newpipe/player/MainVideoPlayer.java

@@ -1181,11 +1181,14 @@ public final class MainVideoPlayer extends AppCompatActivity
     private class PlayerGestureListener extends GestureDetector.SimpleOnGestureListener
             implements View.OnTouchListener {
         private static final int MOVEMENT_THRESHOLD = 40;
+
         private final boolean isVolumeGestureEnabled = PlayerHelper
                 .isVolumeGestureEnabled(getApplicationContext());
         private final boolean isBrightnessGestureEnabled = PlayerHelper
                 .isBrightnessGestureEnabled(getApplicationContext());
+
         private final int maxVolume = playerImpl.getAudioReactor().getMaxVolume();
+
         private boolean isMoving;
 
         @Override

app/src/main/java/org/schabi/newpipe/player/ServicePlayerActivity.java

@@ -54,14 +54,19 @@ public abstract class ServicePlayerActivity extends AppCompatActivity
         View.OnClickListener, PlaybackParameterDialog.Callback {
     private static final int RECYCLER_ITEM_POPUP_MENU_GROUP_ID = 47;
     private static final int SMOOTH_SCROLL_MAXIMUM_DISTANCE = 80;
+
     protected BasePlayer player;
+
     private boolean serviceBound;
     private ServiceConnection serviceConnection;
+
+    private boolean seeking;
+    private boolean redraw;
+
     ////////////////////////////////////////////////////////////////////////////
     // Views
     ////////////////////////////////////////////////////////////////////////////
-    private boolean seeking;
+
-    private boolean redraw;
     private View rootView;
 
     private RecyclerView itemsList;

app/src/main/java/org/schabi/newpipe/player/VideoPlayer.java

@@ -90,51 +90,69 @@ public abstract class VideoPlayer extends BasePlayer
         Player.EventListener,
         PopupMenu.OnMenuItemClickListener,
         PopupMenu.OnDismissListener {
+    public final String TAG;
     public static final boolean DEBUG = BasePlayer.DEBUG;
-    public static final int DEFAULT_CONTROLS_DURATION = 300; // 300 millis
 
     /*//////////////////////////////////////////////////////////////////////////
     // Player
     //////////////////////////////////////////////////////////////////////////*/
+
+    public static final int DEFAULT_CONTROLS_DURATION = 300; // 300 millis
     public static final int DEFAULT_CONTROLS_HIDE_TIME = 2000;  // 2 Seconds
     protected static final int RENDERER_UNAVAILABLE = -1;
-    public final String TAG;
+
     @NonNull
     private final VideoPlaybackResolver resolver;
-    private final Handler controlsVisibilityHandler = new Handler();
+
-    private final int qualityPopupMenuGroupId = 69;
+    private List<VideoStream> availableStreams;
-    private final int playbackSpeedPopupMenuGroupId = 79;
+    private int selectedStreamIndex;
+
+    protected boolean wasPlaying = false;
+
     /*//////////////////////////////////////////////////////////////////////////
     // Views
     //////////////////////////////////////////////////////////////////////////*/
-    private final int captionPopupMenuGroupId = 89;
+
-    protected boolean wasPlaying = false;
-    boolean isSomePopupMenuVisible = false;
-    private List<VideoStream> availableStreams;
-    private int selectedStreamIndex;
     private View rootView;
+
     private AspectRatioFrameLayout aspectRatioFrameLayout;
     private SurfaceView surfaceView;
     private View surfaceForeground;
+
     private View loadingPanel;
     private ImageView endScreen;
     private ImageView controlAnimationView;
+
     private View controlsRoot;
     private TextView currentDisplaySeek;
+
     private View bottomControlsRoot;
     private SeekBar playbackSeekBar;
     private TextView playbackCurrentTime;
     private TextView playbackEndTime;
     private TextView playbackLiveSync;
     private TextView playbackSpeedTextView;
+
     private View topControlsRoot;
     private TextView qualityTextView;
+
     private SubtitleView subtitleView;
+
     private TextView resizeView;
     private TextView captionTextView;
+
     private ValueAnimator controlViewAnimator;
+    private final Handler controlsVisibilityHandler = new Handler();
+
+    boolean isSomePopupMenuVisible = false;
+
+    private final int qualityPopupMenuGroupId = 69;
     private PopupMenu qualityPopupMenu;
+
+    private final int playbackSpeedPopupMenuGroupId = 79;
     private PopupMenu playbackSpeedPopupMenu;
+
+    private final int captionPopupMenuGroupId = 89;
     private PopupMenu captionPopupMenu;
 
     ///////////////////////////////////////////////////////////////////////////
@@ -238,10 +256,6 @@ public abstract class VideoPlayer extends BasePlayer
         }
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // UI Builders
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void handleIntent(final Intent intent) {
         if (intent == null) {
@@ -255,6 +269,10 @@ public abstract class VideoPlayer extends BasePlayer
         super.handleIntent(intent);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // UI Builders
+    //////////////////////////////////////////////////////////////////////////*/
+
     public void buildQualityMenu() {
         if (qualityPopupMenu == null) {
             return;
@@ -354,9 +372,6 @@ public abstract class VideoPlayer extends BasePlayer
         }
         captionPopupMenu.setOnDismissListener(this);
     }
-    /*//////////////////////////////////////////////////////////////////////////
-    // Playback Listener
-    //////////////////////////////////////////////////////////////////////////*/
 
     private void updateStreamRelatedViews() {
         if (getCurrentMetadata() == null) {
@@ -413,6 +428,10 @@ public abstract class VideoPlayer extends BasePlayer
         playbackSpeedTextView.setVisibility(View.VISIBLE);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Playback Listener
+    //////////////////////////////////////////////////////////////////////////*/
+
     protected abstract VideoPlaybackResolver.QualityResolver getQualityResolver();
 
     protected void onMetadataChanged(@NonNull final MediaSourceTag tag) {
@@ -420,16 +439,16 @@ public abstract class VideoPlayer extends BasePlayer
         updateStreamRelatedViews();
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // States Implementation
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     @Nullable
     public MediaSource sourceOf(final PlayQueueItem item, final StreamInfo info) {
         return resolver.resolve(info);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // States Implementation
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onBlocked() {
         super.onBlocked();
@@ -494,10 +513,6 @@ public abstract class VideoPlayer extends BasePlayer
         showAndAnimateControl(-1, true);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // ExoPlayer Video Listener
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onCompleted() {
         super.onCompleted();
@@ -510,6 +525,10 @@ public abstract class VideoPlayer extends BasePlayer
         animateView(surfaceForeground, true, 100);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // ExoPlayer Video Listener
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onTracksChanged(final TrackGroupArray trackGroups,
                                 final TrackSelectionArray trackSelections) {
@@ -537,15 +556,15 @@ public abstract class VideoPlayer extends BasePlayer
         aspectRatioFrameLayout.setAspectRatio(((float) width) / height);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // ExoPlayer Track Updates
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onRenderedFirstFrame() {
         animateView(surfaceForeground, false, 100);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // ExoPlayer Track Updates
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void onTextTrackUpdate() {
         final int textRenderer = getRendererIndex(C.TRACK_TYPE_TEXT);
 

app/src/main/java/org/schabi/newpipe/player/helper/CacheFactory.java

@@ -20,17 +20,20 @@ import java.io.File;
 
 /* package-private */ class CacheFactory implements DataSource.Factory {
     private static final String TAG = "CacheFactory";
+
     private static final String CACHE_FOLDER_NAME = "exoplayer";
     private static final int CACHE_FLAGS = CacheDataSource.FLAG_BLOCK_ON_CACHE
             | CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR;
+
+    private final DefaultDataSourceFactory dataSourceFactory;
+    private final File cacheDir;
+    private final long maxFileSize;
+
     // Creating cache on every instance may cause problems with multiple players when
     // sources are not ExtractorMediaSource
     // see: https://stackoverflow.com/questions/28700391/using-cache-in-exoplayer
     // todo: make this a singleton?
     private static SimpleCache cache;
-    private final DefaultDataSourceFactory dataSourceFactory;
-    private final File cacheDir;
-    private final long maxFileSize;
 
     CacheFactory(@NonNull final Context context,
                  @NonNull final String userAgent,

app/src/main/java/org/schabi/newpipe/player/helper/PlaybackParameterDialog.java

@@ -23,19 +23,23 @@ import static org.schabi.newpipe.util.Localization.assureCorrectAppLanguage;
 
 public class PlaybackParameterDialog extends DialogFragment {
     // Minimum allowable range in ExoPlayer
-    public static final double MINIMUM_PLAYBACK_VALUE = 0.10f;
+    private static final double MINIMUM_PLAYBACK_VALUE = 0.10f;
-    public static final double MAXIMUM_PLAYBACK_VALUE = 3.00f;
+    private static final double MAXIMUM_PLAYBACK_VALUE = 3.00f;
-    public static final char STEP_UP_SIGN = '+';
+
-    public static final char STEP_DOWN_SIGN = '-';
+    private static final char STEP_UP_SIGN = '+';
-    public static final double STEP_ONE_PERCENT_VALUE = 0.01f;
+    private static final char STEP_DOWN_SIGN = '-';
-    public static final double STEP_FIVE_PERCENT_VALUE = 0.05f;
+
-    public static final double STEP_TEN_PERCENT_VALUE = 0.10f;
+    private static final double STEP_ONE_PERCENT_VALUE = 0.01f;
-    public static final double STEP_TWENTY_FIVE_PERCENT_VALUE = 0.25f;
+    private static final double STEP_FIVE_PERCENT_VALUE = 0.05f;
-    public static final double STEP_ONE_HUNDRED_PERCENT_VALUE = 1.00f;
+    private static final double STEP_TEN_PERCENT_VALUE = 0.10f;
-    public static final double DEFAULT_TEMPO = 1.00f;
+    private static final double STEP_TWENTY_FIVE_PERCENT_VALUE = 0.25f;
-    public static final double DEFAULT_PITCH = 1.00f;
+    private static final double STEP_ONE_HUNDRED_PERCENT_VALUE = 1.00f;
-    public static final double DEFAULT_STEP = STEP_TWENTY_FIVE_PERCENT_VALUE;
+
-    public static final boolean DEFAULT_SKIP_SILENCE = false;
+    private static final double DEFAULT_TEMPO = 1.00f;
+    private static final double DEFAULT_PITCH = 1.00f;
+    private static final double DEFAULT_STEP = STEP_TWENTY_FIVE_PERCENT_VALUE;
+    private static final boolean DEFAULT_SKIP_SILENCE = false;
+
     @NonNull
     private static final String TAG = "PlaybackParameterDialog";
     @NonNull
@@ -49,18 +53,22 @@ public class PlaybackParameterDialog extends DialogFragment {
     private static final String PITCH_KEY = "pitch_key";
     @NonNull
     private static final String STEP_SIZE_KEY = "step_size_key";
+
     @NonNull
     private final SliderStrategy strategy = new SliderStrategy.Quadratic(
             MINIMUM_PLAYBACK_VALUE, MAXIMUM_PLAYBACK_VALUE,
             /*centerAt=*/1.00f, /*sliderGranularity=*/10000);
+
     @Nullable
     private Callback callback;
+
     private double initialTempo = DEFAULT_TEMPO;
     private double initialPitch = DEFAULT_PITCH;
     private boolean initialSkipSilence = DEFAULT_SKIP_SILENCE;
     private double tempo = DEFAULT_TEMPO;
     private double pitch = DEFAULT_PITCH;
     private double stepSize = DEFAULT_STEP;
+
     @Nullable
     private SeekBar tempoSlider;
     @Nullable
@@ -96,25 +104,10 @@ public class PlaybackParameterDialog extends DialogFragment {
         return dialog;
     }
 
-    @NonNull
-    private static String getStepUpPercentString(final double percent) {
-        return STEP_UP_SIGN + getPercentString(percent);
-    }
-
     /*//////////////////////////////////////////////////////////////////////////
     // Lifecycle
     //////////////////////////////////////////////////////////////////////////*/
 
-    @NonNull
-    private static String getStepDownPercentString(final double percent) {
-        return STEP_DOWN_SIGN + getPercentString(percent);
-    }
-
-    @NonNull
-    private static String getPercentString(final double percent) {
-        return PlayerHelper.formatPitch(percent);
-    }
-
     @Override
     public void onAttach(final Context context) {
         super.onAttach(context);
@@ -125,10 +118,6 @@ public class PlaybackParameterDialog extends DialogFragment {
         }
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Dialog
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onCreate(@Nullable final Bundle savedInstanceState) {
         assureCorrectAppLanguage(getContext());
@@ -143,10 +132,6 @@ public class PlaybackParameterDialog extends DialogFragment {
         }
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Control Views
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onSaveInstanceState(final Bundle outState) {
         super.onSaveInstanceState(outState);
@@ -158,6 +143,10 @@ public class PlaybackParameterDialog extends DialogFragment {
         outState.putDouble(STEP_SIZE_KEY, getCurrentStepSize());
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Dialog
+    //////////////////////////////////////////////////////////////////////////*/
+
     @NonNull
     @Override
     public Dialog onCreateDialog(@Nullable final Bundle savedInstanceState) {
@@ -179,6 +168,10 @@ public class PlaybackParameterDialog extends DialogFragment {
         return dialogBuilder.create();
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Control Views
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void setupControlViews(@NonNull final View rootView) {
         setupHookingControl(rootView);
         setupSkipSilenceControl(rootView);
@@ -273,10 +266,6 @@ public class PlaybackParameterDialog extends DialogFragment {
         }
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Sliders
-    //////////////////////////////////////////////////////////////////////////*/
-
     private void setupStepSizeSelector(@NonNull final View rootView) {
         TextView stepSizeOnePercentText = rootView.findViewById(R.id.stepSizeOnePercent);
         TextView stepSizeFivePercentText = rootView.findViewById(R.id.stepSizeFivePercent);
@@ -355,6 +344,10 @@ public class PlaybackParameterDialog extends DialogFragment {
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Sliders
+    //////////////////////////////////////////////////////////////////////////*/
+
     private SeekBar.OnSeekBarChangeListener getOnTempoChangedListener() {
         return new SeekBar.OnSeekBarChangeListener() {
             @Override
@@ -430,10 +423,6 @@ public class PlaybackParameterDialog extends DialogFragment {
         setPitchSlider(newValue);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Helper
-    //////////////////////////////////////////////////////////////////////////*/
-
     private void setTempoSlider(final double newTempo) {
         if (tempoSlider == null) {
             return;
@@ -448,6 +437,10 @@ public class PlaybackParameterDialog extends DialogFragment {
         pitchSlider.setProgress(strategy.progressOf(newPitch));
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Helper
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void setCurrentPlaybackParameters() {
         setPlaybackParameters(getCurrentTempo(), getCurrentPitch(), getCurrentSkipSilence());
     }
@@ -483,6 +476,21 @@ public class PlaybackParameterDialog extends DialogFragment {
         return skipSilenceCheckbox != null && skipSilenceCheckbox.isChecked();
     }
 
+    @NonNull
+    private static String getStepUpPercentString(final double percent) {
+        return STEP_UP_SIGN + getPercentString(percent);
+    }
+
+    @NonNull
+    private static String getStepDownPercentString(final double percent) {
+        return STEP_DOWN_SIGN + getPercentString(percent);
+    }
+
+    @NonNull
+    private static String getPercentString(final double percent) {
+        return PlayerHelper.formatPitch(percent);
+    }
+
     public interface Callback {
         void onPlaybackParameterChanged(float playbackTempo, float playbackPitch,
                                         boolean playbackSkipSilence);

app/src/main/java/org/schabi/newpipe/player/helper/PlayerHelper.java

@@ -58,6 +58,10 @@ public final class PlayerHelper {
 
     private PlayerHelper() { }
 
+    ////////////////////////////////////////////////////////////////////////////
+    // Exposed helpers
+    ////////////////////////////////////////////////////////////////////////////
+
     public static String getTimeString(final int milliSeconds) {
         int seconds = (milliSeconds % 60000) / 1000;
         int minutes = (milliSeconds % 3600000) / 60000;
@@ -72,9 +76,6 @@ public final class PlayerHelper {
                 ? STRING_FORMATTER.format("%d:%02d:%02d", hours, minutes, seconds).toString()
                 : STRING_FORMATTER.format("%02d:%02d", minutes, seconds).toString();
     }
-    ////////////////////////////////////////////////////////////////////////////
-    // Exposed helpers
-    ////////////////////////////////////////////////////////////////////////////
 
     public static String formatSpeed(final double speed) {
         return SPEED_FORMATTER.format(speed);
@@ -177,14 +178,14 @@ public final class PlayerHelper {
                 ? null : getAutoQueuedSinglePlayQueue(autoQueueItems.get(0));
     }
 
-    public static boolean isResumeAfterAudioFocusGain(@NonNull final Context context) {
-        return isResumeAfterAudioFocusGain(context, false);
-    }
-
     ////////////////////////////////////////////////////////////////////////////
     // Settings Resolution
     ////////////////////////////////////////////////////////////////////////////
 
+    public static boolean isResumeAfterAudioFocusGain(@NonNull final Context context) {
+        return isResumeAfterAudioFocusGain(context, false);
+    }
+
     public static boolean isVolumeGestureEnabled(@NonNull final Context context) {
         return isVolumeGestureEnabled(context, true);
     }
@@ -322,15 +323,15 @@ public final class PlayerHelper {
         setScreenBrightness(context, setScreenBrightness, System.currentTimeMillis());
     }
 
+    ////////////////////////////////////////////////////////////////////////////
+    // Private helpers
+    ////////////////////////////////////////////////////////////////////////////
+
     @NonNull
     private static SharedPreferences getPreferences(@NonNull final Context context) {
         return PreferenceManager.getDefaultSharedPreferences(context);
     }
 
-    ////////////////////////////////////////////////////////////////////////////
-    // Private helpers
-    ////////////////////////////////////////////////////////////////////////////
-
     private static boolean isResumeAfterAudioFocusGain(@NonNull final Context context,
                                                        final boolean b) {
         return getPreferences(context)

app/src/main/java/org/schabi/newpipe/player/playback/MediaSourceManager.java

@@ -44,16 +44,21 @@ import static org.schabi.newpipe.player.mediasource.FailedMediaSource.StreamInfo
 import static org.schabi.newpipe.player.playqueue.PlayQueue.DEBUG;
 
 public class MediaSourceManager {
+    @NonNull
+    private final String TAG = "MediaSourceManager@" + hashCode();
+
     /**
      * Determines how many streams before and after the current stream should be loaded.
      * The default value (1) ensures seamless playback under typical network settings.
-     * <br><br>
+     * <p>
      * The streams after the current will be loaded into the playlist timeline while the
      * streams before will only be cached for future usage.
+     * </p>
      *
      * @see #onMediaSourceReceived(PlayQueueItem, ManagedMediaSource)
      */
     private static final int WINDOW_SIZE = 1;
+
     /**
      * Determines the maximum number of disposables allowed in the {@link #loaderReactor}.
      * Once exceeded, new calls to {@link #loadImmediate()} will evict all disposables in the
@@ -63,12 +68,12 @@ public class MediaSourceManager {
      * @see #maybeLoadItem(PlayQueueItem)
      */
     private static final int MAXIMUM_LOADER_SIZE = WINDOW_SIZE * 2 + 1;
-    @NonNull
+
-    private final String TAG = "MediaSourceManager@" + hashCode();
     @NonNull
     private final PlaybackListener playbackListener;
     @NonNull
     private final PlayQueue playQueue;
+
     /**
      * Determines the gap time between the playback position and the playback duration which
      * the {@link #getEdgeIntervalSignal()} begins to request loading.
@@ -76,35 +81,45 @@ public class MediaSourceManager {
      * @see #progressUpdateIntervalMillis
      */
     private final long playbackNearEndGapMillis;
+
     /**
      * Determines the interval which the {@link #getEdgeIntervalSignal()} waits for between
      * each request for loading, once {@link #playbackNearEndGapMillis} has reached.
      */
     private final long progressUpdateIntervalMillis;
+
     @NonNull
     private final Observable<Long> nearEndIntervalSignal;
+
     /**
      * Process only the last load order when receiving a stream of load orders (lessens I/O).
-     * <br><br>
+     * <p>
      * The higher it is, the less loading occurs during rapid noncritical timeline changes.
-     * <br><br>
+     * </p>
+     * <p>
      * Not recommended to go below 100ms.
+     * </p>
      *
      * @see #loadDebounced()
      */
     private final long loadDebounceMillis;
+
     @NonNull
     private final Disposable debouncedLoader;
     @NonNull
     private final PublishSubject<Long> debouncedSignal;
+
+    @NonNull
+    private Subscription playQueueReactor;
+
     @NonNull
     private final CompositeDisposable loaderReactor;
     @NonNull
     private final Set<PlayQueueItem> loadingItems;
+
     @NonNull
     private final AtomicBoolean isBlocked;
-    @NonNull
+
-    private Subscription playQueueReactor;
     @NonNull
     private ManagedMediaSourcePlaylist playlist;
 
@@ -160,42 +175,6 @@ public class MediaSourceManager {
     // Exposed Methods
     //////////////////////////////////////////////////////////////////////////*/
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Manager Helpers
-    //////////////////////////////////////////////////////////////////////////*/
-    @Nullable
-    private static ItemsToLoad getItemsToLoad(@NonNull final PlayQueue playQueue) {
-        // The current item has higher priority
-        final int currentIndex = playQueue.getIndex();
-        final PlayQueueItem currentItem = playQueue.getItem(currentIndex);
-        if (currentItem == null) {
-            return null;
-        }
-
-        // The rest are just for seamless playback
-        // Although timeline is not updated prior to the current index, these sources are still
-        // loaded into the cache for faster retrieval at a potentially later time.
-        final int leftBound = Math.max(0, currentIndex - MediaSourceManager.WINDOW_SIZE);
-        final int rightLimit = currentIndex + MediaSourceManager.WINDOW_SIZE + 1;
-        final int rightBound = Math.min(playQueue.size(), rightLimit);
-        final Set<PlayQueueItem> neighbors = new ArraySet<>(
-                playQueue.getStreams().subList(leftBound, rightBound));
-
-        // Do a round robin
-        final int excess = rightLimit - playQueue.size();
-        if (excess >= 0) {
-            neighbors.addAll(playQueue.getStreams()
-                    .subList(0, Math.min(playQueue.size(), excess)));
-        }
-        neighbors.remove(currentItem);
-
-        return new ItemsToLoad(currentItem, neighbors);
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Event Reactor
-    //////////////////////////////////////////////////////////////////////////*/
-
     /**
      * Dispose the manager and releases all message buses and loaders.
      */
@@ -211,6 +190,10 @@ public class MediaSourceManager {
         loaderReactor.dispose();
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Event Reactor
+    //////////////////////////////////////////////////////////////////////////*/
+
     private Subscriber<PlayQueueEvent> getReactor() {
         return new Subscriber<PlayQueueEvent>() {
             @Override
@@ -233,10 +216,6 @@ public class MediaSourceManager {
         };
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Playback Locking
-    //////////////////////////////////////////////////////////////////////////*/
-
     private void onPlayQueueChanged(final PlayQueueEvent event) {
         if (playQueue.isEmpty() && playQueue.isComplete()) {
             playbackListener.onPlaybackShutdown();
@@ -298,6 +277,10 @@ public class MediaSourceManager {
         playQueueReactor.request(1);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Playback Locking
+    //////////////////////////////////////////////////////////////////////////*/
+
     private boolean isPlayQueueReady() {
         final boolean isWindowLoaded = playQueue.size() - playQueue.getIndex() > WINDOW_SIZE;
         return playQueue.isComplete() || isWindowLoaded;
@@ -332,10 +315,6 @@ public class MediaSourceManager {
         isBlocked.set(true);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Metadata Synchronization
-    //////////////////////////////////////////////////////////////////////////*/
-
     private void maybeUnblock() {
         if (DEBUG) {
             Log.d(TAG, "maybeUnblock() called.");
@@ -347,6 +326,10 @@ public class MediaSourceManager {
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Metadata Synchronization
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void maybeSync() {
         if (DEBUG) {
             Log.d(TAG, "maybeSync() called.");
@@ -360,10 +343,6 @@ public class MediaSourceManager {
         playbackListener.onPlaybackSynchronize(currentItem);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // MediaSource Loading
-    //////////////////////////////////////////////////////////////////////////*/
-
     private synchronized void maybeSynchronizePlayer() {
         if (isPlayQueueReady() && isPlaybackReady()) {
             maybeUnblock();
@@ -371,6 +350,10 @@ public class MediaSourceManager {
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // MediaSource Loading
+    //////////////////////////////////////////////////////////////////////////*/
+
     private Observable<Long> getEdgeIntervalSignal() {
         return Observable.interval(progressUpdateIntervalMillis, TimeUnit.MILLISECONDS)
                 .observeOn(AndroidSchedulers.mainThread())
@@ -523,9 +506,6 @@ public class MediaSourceManager {
         }
         playlist.invalidate(currentIndex, removeMediaSourceHandler, this::loadImmediate);
     }
-    /*//////////////////////////////////////////////////////////////////////////
-    // MediaSource Playlist Helpers
-    //////////////////////////////////////////////////////////////////////////*/
 
     private void maybeClearLoaders() {
         if (DEBUG) {
@@ -538,6 +518,10 @@ public class MediaSourceManager {
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // MediaSource Playlist Helpers
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void resetSources() {
         if (DEBUG) {
             Log.d(TAG, "resetSources() called.");
@@ -554,6 +538,39 @@ public class MediaSourceManager {
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Manager Helpers
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Nullable
+    private static ItemsToLoad getItemsToLoad(@NonNull final PlayQueue playQueue) {
+        // The current item has higher priority
+        final int currentIndex = playQueue.getIndex();
+        final PlayQueueItem currentItem = playQueue.getItem(currentIndex);
+        if (currentItem == null) {
+            return null;
+        }
+
+        // The rest are just for seamless playback
+        // Although timeline is not updated prior to the current index, these sources are still
+        // loaded into the cache for faster retrieval at a potentially later time.
+        final int leftBound = Math.max(0, currentIndex - MediaSourceManager.WINDOW_SIZE);
+        final int rightLimit = currentIndex + MediaSourceManager.WINDOW_SIZE + 1;
+        final int rightBound = Math.min(playQueue.size(), rightLimit);
+        final Set<PlayQueueItem> neighbors = new ArraySet<>(
+                playQueue.getStreams().subList(leftBound, rightBound));
+
+        // Do a round robin
+        final int excess = rightLimit - playQueue.size();
+        if (excess >= 0) {
+            neighbors.addAll(playQueue.getStreams()
+                    .subList(0, Math.min(playQueue.size(), excess)));
+        }
+        neighbors.remove(currentItem);
+
+        return new ItemsToLoad(currentItem, neighbors);
+    }
+
     private static class ItemsToLoad {
         @NonNull
         private final PlayQueueItem center;

app/src/main/java/org/schabi/newpipe/player/playqueue/AbstractInfoPlayQueue.java

@@ -16,10 +16,11 @@ import io.reactivex.annotations.NonNull;
 import io.reactivex.disposables.Disposable;
 
 abstract class AbstractInfoPlayQueue<T extends ListInfo, U extends InfoItem> extends PlayQueue {
-    final int serviceId;
-    final String baseUrl;
     boolean isInitial;
     private boolean isComplete;
+
+    final int serviceId;
+    final String baseUrl;
     String nextUrl;
 
     private transient Disposable fetchReactor;
@@ -40,16 +41,6 @@ abstract class AbstractInfoPlayQueue<T extends ListInfo, U extends InfoItem> ext
         this.isComplete = !isInitial && (nextPageUrl == null || nextPageUrl.isEmpty());
     }
 
-    private static List<PlayQueueItem> extractListItems(final List<StreamInfoItem> infos) {
-        List<PlayQueueItem> result = new ArrayList<>();
-        for (final InfoItem stream : infos) {
-            if (stream instanceof StreamInfoItem) {
-                result.add(new PlayQueueItem((StreamInfoItem) stream));
-            }
-        }
-        return result;
-    }
-
     protected abstract String getTag();
 
     @Override
@@ -134,4 +125,14 @@ abstract class AbstractInfoPlayQueue<T extends ListInfo, U extends InfoItem> ext
         }
         fetchReactor = null;
     }
+
+    private static List<PlayQueueItem> extractListItems(final List<StreamInfoItem> infos) {
+        List<PlayQueueItem> result = new ArrayList<>();
+        for (final InfoItem stream : infos) {
+            if (stream instanceof StreamInfoItem) {
+                result.add(new PlayQueueItem((StreamInfoItem) stream));
+            }
+        }
+        return result;
+    }
 }

app/src/main/java/org/schabi/newpipe/player/playqueue/PlayQueue.java

@@ -36,17 +36,22 @@ import io.reactivex.subjects.BehaviorSubject;
  * <p>
  * This class contains basic manipulation of a playlist while also functions as a
  * message bus, providing all listeners with new updates to the play queue.
+ * </p>
  * <p>
  * This class can be serialized for passing intents, but in order to start the
  * message bus, it must be initialized.
+ * </p>
  */
 public abstract class PlayQueue implements Serializable {
-    public static final boolean DEBUG = !BuildConfig.BUILD_TYPE.equals("release");
     private final String TAG = "PlayQueue@" + Integer.toHexString(hashCode());
-    @NonNull
+    public static final boolean DEBUG = !BuildConfig.BUILD_TYPE.equals("release");
-    private final AtomicInteger queueIndex;
+
     private ArrayList<PlayQueueItem> backup;
     private ArrayList<PlayQueueItem> streams;
+
+    @NonNull
+    private final AtomicInteger queueIndex;
+
     private transient BehaviorSubject<PlayQueueEvent> eventBroadcast;
     private transient Flowable<PlayQueueEvent> broadcastReceiver;
     private transient Subscription reportingReactor;

app/src/main/java/org/schabi/newpipe/player/playqueue/PlayQueueAdapter.java

@@ -28,19 +28,23 @@ import io.reactivex.disposables.Disposable;
  * <p>
  * Copyright (C) Christian Schabesberger 2016 <chris.schabesberger@mailbox.org>
  * InfoListAdapter.java is part of NewPipe.
+ * </p>
  * <p>
  * NewPipe 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.
+ * </p>
  * <p>
  * NewPipe 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.
+ * </p>
  * <p>
  * You should have received a copy of the GNU General Public License
  * along with NewPipe.  If not, see <http://www.gnu.org/licenses/>.
+ * </p>
  */
 
 public class PlayQueueAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

app/src/main/java/org/schabi/newpipe/player/resolver/VideoPlaybackResolver.java

@@ -32,6 +32,7 @@ public class VideoPlaybackResolver implements PlaybackResolver {
     private final PlayerDataSource dataSource;
     @NonNull
     private final QualityResolver qualityResolver;
+
     @Nullable
     private String playbackQuality;
 

app/src/main/java/org/schabi/newpipe/report/ErrorActivity.java

@@ -181,25 +181,6 @@ public class ErrorActivity extends AppCompatActivity {
         return out;
     }
 
-    /**
-     * Get the checked activity.
-     *
-     * @param returnActivity the activity to return to
-     * @return the casted return activity or null
-     */
-    @Nullable
-    static Class<? extends Activity> getReturnActivity(final Class<?> returnActivity) {
-        Class<? extends Activity> checkedReturnActivity = null;
-        if (returnActivity != null) {
-            if (Activity.class.isAssignableFrom(returnActivity)) {
-                checkedReturnActivity = returnActivity.asSubclass(Activity.class);
-            } else {
-                checkedReturnActivity = MainActivity.class;
-            }
-        }
-        return checkedReturnActivity;
-    }
-
     @Override
     protected void onCreate(final Bundle savedInstanceState) {
         assureCorrectAppLanguage(this);
@@ -315,6 +296,25 @@ public class ErrorActivity extends AppCompatActivity {
         return text.toString();
     }
 
+    /**
+     * Get the checked activity.
+     *
+     * @param returnActivity the activity to return to
+     * @return the casted return activity or null
+     */
+    @Nullable
+    static Class<? extends Activity> getReturnActivity(final Class<?> returnActivity) {
+        Class<? extends Activity> checkedReturnActivity = null;
+        if (returnActivity != null) {
+            if (Activity.class.isAssignableFrom(returnActivity)) {
+                checkedReturnActivity = returnActivity.asSubclass(Activity.class);
+            } else {
+                checkedReturnActivity = MainActivity.class;
+            }
+        }
+        return checkedReturnActivity;
+    }
+
     private void goToReturnActivity() {
         Class<? extends Activity> checkedReturnActivity = getReturnActivity(returnActivity);
         if (checkedReturnActivity == null) {

app/src/main/java/org/schabi/newpipe/settings/PeertubeInstanceListFragment.java

@@ -54,17 +54,20 @@ import io.reactivex.schedulers.Schedulers;
 
 public class PeertubeInstanceListFragment extends Fragment {
     private static final int MENU_ITEM_RESTORE_ID = 123456;
-    public InstanceListAdapter instanceListAdapter;
+
     private List<PeertubeInstance> instanceList = new ArrayList<>();
     private PeertubeInstance selectedInstance;
     private String savedInstanceListKey;
+    private InstanceListAdapter instanceListAdapter;
+
     private ProgressBar progressBar;
     private SharedPreferences sharedPreferences;
 
+    private CompositeDisposable disposables = new CompositeDisposable();
+
     /*//////////////////////////////////////////////////////////////////////////
     // Lifecycle
     //////////////////////////////////////////////////////////////////////////*/
-    private CompositeDisposable disposables = new CompositeDisposable();
 
     @Override
     public void onCreate(@Nullable final Bundle savedInstanceState) {
@@ -122,9 +125,6 @@ public class PeertubeInstanceListFragment extends Fragment {
         super.onPause();
         saveChanges();
     }
-    /*//////////////////////////////////////////////////////////////////////////
-    // Menu
-    //////////////////////////////////////////////////////////////////////////*/
 
     @Override
     public void onDestroy() {
@@ -135,6 +135,10 @@ public class PeertubeInstanceListFragment extends Fragment {
         disposables = null;
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Menu
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
         super.onCreateOptionsMenu(menu, inflater);
@@ -284,10 +288,6 @@ public class PeertubeInstanceListFragment extends Fragment {
         instanceListAdapter.notifyDataSetChanged();
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // List Handling
-    //////////////////////////////////////////////////////////////////////////*/
-
     private ItemTouchHelper.SimpleCallback getItemTouchCallback() {
         return new ItemTouchHelper.SimpleCallback(ItemTouchHelper.UP | ItemTouchHelper.DOWN,
                 ItemTouchHelper.START | ItemTouchHelper.END) {
@@ -348,6 +348,10 @@ public class PeertubeInstanceListFragment extends Fragment {
         };
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // List Handling
+    //////////////////////////////////////////////////////////////////////////*/
+
     private class InstanceListAdapter
             extends RecyclerView.Adapter<InstanceListAdapter.TabViewHolder> {
         private final LayoutInflater inflater;

app/src/main/java/org/schabi/newpipe/settings/SelectChannelFragment.java

@@ -57,18 +57,18 @@ public class SelectChannelFragment extends DialogFragment {
     /**
      * This contains the base display options for images.
      */
-    public static final DisplayImageOptions DISPLAY_IMAGE_OPTIONS
+    private static final DisplayImageOptions DISPLAY_IMAGE_OPTIONS
             = new DisplayImageOptions.Builder().cacheInMemory(true).build();
-    private final ImageLoader imageLoader = ImageLoader.getInstance();
-    OnSelectedLisener onSelectedLisener = null;
-    OnCancelListener onCancelListener = null;
-    private ProgressBar progressBar;
 
-    /*//////////////////////////////////////////////////////////////////////////
+    private final ImageLoader imageLoader = ImageLoader.getInstance();
-    // Interfaces
+
-    //////////////////////////////////////////////////////////////////////////*/
+    private OnSelectedLisener onSelectedLisener = null;
+    private OnCancelListener onCancelListener = null;
+
+    private ProgressBar progressBar;
     private TextView emptyView;
     private RecyclerView recyclerView;
+
     private List<SubscriptionEntity> subscriptions = new Vector<>();
 
     public void setOnSelectedLisener(final OnSelectedLisener listener) {
@@ -79,6 +79,10 @@ public class SelectChannelFragment extends DialogFragment {
         onCancelListener = listener;
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Init
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public View onCreateView(@NonNull final LayoutInflater inflater, final ViewGroup container,
                              final Bundle savedInstanceState) {
@@ -105,7 +109,7 @@ public class SelectChannelFragment extends DialogFragment {
     }
 
     /*//////////////////////////////////////////////////////////////////////////
-    // Init
+    // Handle actions
     //////////////////////////////////////////////////////////////////////////*/
 
     @Override
@@ -116,11 +120,6 @@ public class SelectChannelFragment extends DialogFragment {
         }
     }
 
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Handle actions
-    //////////////////////////////////////////////////////////////////////////*/
-
     private void clickedItem(final int position) {
         if (onSelectedLisener != null) {
             SubscriptionEntity entry = subscriptions.get(position);
@@ -130,6 +129,10 @@ public class SelectChannelFragment extends DialogFragment {
         dismiss();
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Item handling
+    //////////////////////////////////////////////////////////////////////////*/
+
     private void displayChannels(final List<SubscriptionEntity> newSubscriptions) {
         this.subscriptions = newSubscriptions;
         progressBar.setVisibility(View.GONE);
@@ -141,10 +144,6 @@ public class SelectChannelFragment extends DialogFragment {
 
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Item handling
-    //////////////////////////////////////////////////////////////////////////*/
-
     private Observer<List<SubscriptionEntity>> getSubscriptionObserver() {
         return new Observer<List<SubscriptionEntity>>() {
             @Override
@@ -165,29 +164,28 @@ public class SelectChannelFragment extends DialogFragment {
         };
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Error
+    //////////////////////////////////////////////////////////////////////////*/
+
     protected void onError(final Throwable e) {
         final Activity activity = getActivity();
         ErrorActivity.reportError(activity, e, activity.getClass(), null, ErrorActivity.ErrorInfo
                 .make(UserAction.UI_ERROR, "none", "", R.string.app_ui_crash));
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Interfaces
+    //////////////////////////////////////////////////////////////////////////*/
+
     public interface OnSelectedLisener {
         void onChannelSelected(int serviceId, String url, String name);
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Error
-    //////////////////////////////////////////////////////////////////////////*/
-
     public interface OnCancelListener {
         void onCancel();
     }
 
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // ImageLoaderOptions
-    //////////////////////////////////////////////////////////////////////////*/
-
     private class SelectChannelAdapter
             extends RecyclerView.Adapter<SelectChannelAdapter.SelectChannelItemHolder> {
         @Override
@@ -219,8 +217,8 @@ public class SelectChannelFragment extends DialogFragment {
 
         public class SelectChannelItemHolder extends RecyclerView.ViewHolder {
             public final View view;
-            public final CircleImageView thumbnailView;
+            final CircleImageView thumbnailView;
-            public final TextView titleView;
+            final TextView titleView;
             SelectChannelItemHolder(final View v) {
                 super(v);
                 this.view = v;

app/src/main/java/org/schabi/newpipe/settings/SelectKioskFragment.java

@@ -50,9 +50,6 @@ public class SelectKioskFragment extends DialogFragment {
     private RecyclerView recyclerView = null;
     private SelectKioskAdapter selectKioskAdapter = null;
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Interfaces
-    //////////////////////////////////////////////////////////////////////////*/
     private OnSelectedLisener onSelectedLisener = null;
     private OnCancelListener onCancelListener = null;
 
@@ -80,6 +77,10 @@ public class SelectKioskFragment extends DialogFragment {
         return v;
     }
 
+   /*//////////////////////////////////////////////////////////////////////////
+    // Handle actions
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onCancel(final DialogInterface dialogInterface) {
         super.onCancel(dialogInterface);
@@ -96,7 +97,7 @@ public class SelectKioskFragment extends DialogFragment {
     }
 
     /*//////////////////////////////////////////////////////////////////////////
-    // Handle actions
+    // Error
     //////////////////////////////////////////////////////////////////////////*/
 
     protected void onError(final Throwable e) {
@@ -105,6 +106,10 @@ public class SelectKioskFragment extends DialogFragment {
                 .make(UserAction.UI_ERROR, "none", "", R.string.app_ui_crash));
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Interfaces
+    //////////////////////////////////////////////////////////////////////////*/
+
     public interface OnSelectedLisener {
         void onKioskSelected(int serviceId, String kioskId, String kioskName);
     }
@@ -113,10 +118,6 @@ public class SelectKioskFragment extends DialogFragment {
         void onCancel();
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Error
-    //////////////////////////////////////////////////////////////////////////*/
-
     private class SelectKioskAdapter
             extends RecyclerView.Adapter<SelectKioskAdapter.SelectKioskItemHolder> {
         private final List<Entry> kioskList = new Vector<>();

app/src/main/java/org/schabi/newpipe/settings/tabs/ChooseTabsFragment.java

@@ -45,10 +45,11 @@ import static org.schabi.newpipe.settings.tabs.Tab.typeFrom;
 
 public class ChooseTabsFragment extends Fragment {
     private static final int MENU_ITEM_RESTORE_ID = 123456;
-    private ChooseTabsFragment.SelectedTabsAdapter selectedTabsAdapter;
+
     private TabsManager tabsManager;
 
     private List<Tab> tabList = new ArrayList<>();
+    private ChooseTabsFragment.SelectedTabsAdapter selectedTabsAdapter;
 
     /*//////////////////////////////////////////////////////////////////////////
     // Lifecycle
@@ -93,16 +94,16 @@ public class ChooseTabsFragment extends Fragment {
         updateTitle();
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Menu
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public void onPause() {
         super.onPause();
         saveChanges();
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Menu
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Override
     public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
         super.onCreateOptionsMenu(menu, inflater);
@@ -216,7 +217,7 @@ public class ChooseTabsFragment extends Fragment {
         }
     }
 
-    public ChooseTabListItem[] getAvailableTabs(final Context context) {
+    private ChooseTabListItem[] getAvailableTabs(final Context context) {
         final ArrayList<ChooseTabListItem> returnList = new ArrayList<>();
 
         for (Tab.Type type : Tab.Type.values()) {

app/src/main/java/org/schabi/newpipe/settings/tabs/Tab.java

@@ -39,6 +39,10 @@ public abstract class Tab {
         readDataFromJson(jsonObject);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Tab Handling
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Nullable
     public static Tab from(@NonNull final JsonObject jsonObject) {
         final int tabId = jsonObject.getInt(Tab.JSON_TAB_ID_KEY, -1);
@@ -85,10 +89,6 @@ public abstract class Tab {
         return type.getTab();
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // JSON Handling
-    //////////////////////////////////////////////////////////////////////////*/
-
     public abstract int getTabId();
 
     public abstract String getTabName(Context context);
@@ -104,10 +104,6 @@ public abstract class Tab {
      */
     public abstract Fragment getFragment(Context context) throws ExtractionException;
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Tab Handling
-    //////////////////////////////////////////////////////////////////////////*/
-
     @Override
     public boolean equals(final Object obj) {
         if (obj == this) {
@@ -118,6 +114,10 @@ public abstract class Tab {
                 && ((Tab) obj).getTabId() == this.getTabId();
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // JSON Handling
+    //////////////////////////////////////////////////////////////////////////*/
+
     public void writeJsonOn(final JsonSink jsonSink) {
         jsonSink.object();
 

app/src/main/java/org/schabi/newpipe/settings/tabs/TabsManager.java

@@ -41,10 +41,6 @@ public final class TabsManager {
         sharedPreferences.edit().putString(savedTabsKey, jsonToSave).apply();
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Listener
-    //////////////////////////////////////////////////////////////////////////*/
-
     public void resetTabs() {
         sharedPreferences.edit().remove(savedTabsKey).apply();
     }
@@ -53,6 +49,10 @@ public final class TabsManager {
         return TabsJsonHelper.getDefaultTabs();
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Listener
+    //////////////////////////////////////////////////////////////////////////*/
+
     public void setSavedTabsListener(final SavedTabsChangeListener listener) {
         if (preferenceChangeListener != null) {
             sharedPreferences.unregisterOnSharedPreferenceChangeListener(preferenceChangeListener);
@@ -83,12 +83,4 @@ public final class TabsManager {
     public interface SavedTabsChangeListener {
         void onTabsChanged();
     }
-
 }
-
-
-
-
-
-
-

app/src/main/java/org/schabi/newpipe/util/InfoCache.java

@@ -32,18 +32,20 @@ import org.schabi.newpipe.extractor.InfoItem;
 import java.util.Map;
 
 public final class InfoCache {
+    private final String TAG = getClass().getSimpleName();
     private static final boolean DEBUG = MainActivity.DEBUG;
+
     private static final InfoCache INSTANCE = new InfoCache();
     private static final int MAX_ITEMS_ON_CACHE = 60;
     /**
      * Trim the cache to this size.
      */
     private static final int TRIM_CACHE_TO = 30;
+
     private static final LruCache<String, CacheData> LRU_CACHE = new LruCache<>(MAX_ITEMS_ON_CACHE);
-    private final String TAG = getClass().getSimpleName();
 
     private InfoCache() {
-        //no instance
+        // no instance
     }
 
     public static InfoCache getInstance() {

app/src/main/java/org/schabi/newpipe/views/CollapsibleView.java

@@ -47,26 +47,26 @@ import static org.schabi.newpipe.MainActivity.DEBUG;
  * A view that can be fully collapsed and expanded.
  */
 public class CollapsibleView extends LinearLayout {
+    private static final String TAG = CollapsibleView.class.getSimpleName();
+
+    private static final int ANIMATION_DURATION = 420;
+
     public static final int COLLAPSED = 0;
     public static final int EXPANDED = 1;
-    private static final String TAG = CollapsibleView.class.getSimpleName();
-    private static final int ANIMATION_DURATION = 420;
-    private final List<StateListener> listeners = new ArrayList<>();
 
     @State
     @ViewMode
     int currentState = COLLAPSED;
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Collapse/expand logic
-    //////////////////////////////////////////////////////////////////////////*/
     private boolean readyToChangeState;
+
     private int targetHeight = -1;
     private ValueAnimator currentAnimator;
+    private final List<StateListener> listeners = new ArrayList<>();
 
     public CollapsibleView(final Context context) {
         super(context);
     }
+
     public CollapsibleView(final Context context, @Nullable final AttributeSet attrs) {
         super(context, attrs);
     }
@@ -75,12 +75,17 @@ public class CollapsibleView extends LinearLayout {
                            final int defStyleAttr) {
         super(context, attrs, defStyleAttr);
     }
+
     @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
     public CollapsibleView(final Context context, final AttributeSet attrs, final int defStyleAttr,
                            final int defStyleRes) {
         super(context, attrs, defStyleAttr, defStyleRes);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Collapse/expand logic
+    //////////////////////////////////////////////////////////////////////////*/
+
     /**
      * This method recalculates the height of this view so it <b>must</b> be called when
      * some child changes (e.g. add new views, change text).
@@ -198,6 +203,10 @@ public class CollapsibleView extends LinearLayout {
         listeners.remove(listener);
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // State Saving
+    //////////////////////////////////////////////////////////////////////////*/
+
     @Nullable
     @Override
     public Parcelable onSaveInstanceState() {
@@ -212,7 +221,7 @@ public class CollapsibleView extends LinearLayout {
     }
 
     /*//////////////////////////////////////////////////////////////////////////
-    // State Saving
+    // Internal
     //////////////////////////////////////////////////////////////////////////*/
 
     public String getDebugLogString(final String description) {
@@ -226,12 +235,7 @@ public class CollapsibleView extends LinearLayout {
 
     @Retention(SOURCE)
     @IntDef({COLLAPSED, EXPANDED})
-    public @interface ViewMode {
+    public @interface ViewMode { }
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Internal
-    //////////////////////////////////////////////////////////////////////////*/
 
     /**
      * Simple interface used for listening state changes of the {@link CollapsibleView}.