ReactVideoView.java 文件源码

public ReactVideoView(ThemedReactContext themedReactContext) {
    super(themedReactContext);

    mThemedReactContext = themedReactContext;
    mEventEmitter = themedReactContext.getJSModule(RCTEventEmitter.class);
    themedReactContext.addLifecycleEventListener(this);

    initializeMediaPlayerIfNeeded();
    setSurfaceTextureListener(this);

    mProgressUpdateRunnable = new Runnable() {
        @Override
        public void run() {

            if (mMediaPlayerValid && !isCompleted &&!mPaused) {
                WritableMap event = Arguments.createMap();
                event.putDouble(EVENT_PROP_CURRENT_TIME, mMediaPlayer.getCurrentPosition() / 1000.0);
                event.putDouble(EVENT_PROP_PLAYABLE_DURATION, mVideoBufferedDuration / 1000.0); //TODO:mBufferUpdateRunnable
                mEventEmitter.receiveEvent(getId(), Events.EVENT_PROGRESS.toString(), event);

                // Check for update after an interval
                // TODO: The update interval is fixed at 250. There is a property in React component that defines this value. Totally ignored !!!
                mProgressUpdateHandler.postDelayed(mProgressUpdateRunnable, 250);
            }
        }
    };
}