Java 类com.google.android.exoplayer2.ui.SubtitleView 实例源码

public ExoPlayerView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);

    boolean useTextureView = false;

    ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(
            ViewGroup.LayoutParams.MATCH_PARENT,
            ViewGroup.LayoutParams.MATCH_PARENT);

    componentListener = new ComponentListener();

    FrameLayout.LayoutParams aspectRatioParams = new FrameLayout.LayoutParams(
            FrameLayout.LayoutParams.MATCH_PARENT,
            FrameLayout.LayoutParams.MATCH_PARENT);
    aspectRatioParams.gravity = Gravity.CENTER;
    layout = new AspectRatioFrameLayout(context);
    layout.setLayoutParams(aspectRatioParams);

    shutterView = new View(getContext());
    shutterView.setLayoutParams(params);
    shutterView.setBackgroundColor(ContextCompat.getColor(context, android.R.color.black));

    subtitleLayout = new SubtitleView(context);
    subtitleLayout.setLayoutParams(params);
    subtitleLayout.setUserDefaultStyle();
    subtitleLayout.setUserDefaultTextSize();

    View view = useTextureView ? new TextureView(context) : new SurfaceView(context);
    view.setLayoutParams(params);
    surfaceView = view;

    layout.addView(surfaceView, 0, params);
    layout.addView(shutterView, 1, params);
    layout.addView(subtitleLayout, 2, params);

    addViewInLayout(layout, 0, aspectRatioParams);
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_player);

    media = (MediaFile) getIntent().getSerializableExtra(MEDIA);

    videoFragment = (VideoFragment) getFragmentManager().findFragmentById(R.id.playback_fragment);
    VideoFragmentGlueHost glueHost = new VideoFragmentGlueHost(videoFragment);

    subtitleView = (SubtitleView) findViewById(R.id.subtitle_view);
    if (subtitleView != null) {
        subtitleView.setUserDefaultStyle();
        subtitleView.setUserDefaultTextSize();
    }

    Handler mainHandler = new Handler();
    BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveVideoTrackSelection.Factory(bandwidthMeter);
    MappingTrackSelector trackSelector = new DefaultTrackSelector(mainHandler, videoTrackSelectionFactory);
    LoadControl loadControl = new DefaultLoadControl();
    player = ExoPlayerFactory.newSimpleInstance(this, trackSelector, loadControl);
    player.addListener(this);
    player.setTextOutput(this);

    glueHelper = new ExoPlayerGlue(player, trackSelector, this);
    glueHelper.setHost(glueHost);

    session = new MediaSession(this, "ITPlayer");
    session.setCallback(new ExoPlayerMediaSessionCalback(player));
    session.setFlags(MediaSession.FLAG_HANDLES_MEDIA_BUTTONS | MediaSession.FLAG_HANDLES_TRANSPORT_CONTROLS);
    session.setActive(true);

    MediaMetadata.Builder metaBuilder = new MediaMetadata.Builder();
    session.setMetadata(metaBuilder.build());

    new SourceTask().execute(media);
}

/**
 * Gets the {@link SubtitleView}.
 *
 * @return The {@link SubtitleView}, or {@code null} if the layout has been customized and the
 *     subtitle view is not present.
 */
public SubtitleView getSubtitleView() {
    return subtitleView;
}