Android TV - Leanback 库如何向 VideoSupportFragmentGlueHost 添加更多按钮

Question

我正在使用 leanback-v17:27.1.0 库，我尝试自定义 VideoSupportFragmentGlueHost，我想在此处添加更多按钮，如重复或下一步按钮 enter image description here我尝试使用 leanback.app.PlaybackOverlayFragment 但在 leanback-v17:27 它没有像本教程那样的 PlaybackOverlayFragment 类 http://corochann.com/android-tv-application-hands-on-tutorial-7-159.html#PlaybackOverlayFragment有人可以帮我向这个 VideoSupportFragmentGlueHost 添加更多按钮

 public void initData(MovieSampleResult mObject)
{
    try {
        VideoSupportFragmentGlueHost glueHost =
                new VideoSupportFragmentGlueHost(PlayFullScreenVideoFragment.this);
        MediaPlayerAdapter playerAdapter = new MediaPlayerAdapter(getContext());
        playerAdapter.setRepeatAction(PlaybackControlsRow.RepeatAction.INDEX_NONE);
        mTransportControlGlue = new PlaybackTransportControlGlue<>(getContext(), playerAdapter);
        mTransportControlGlue.setHost(glueHost);
        mTransportControlGlue.setTitle(mObject.getName());
        //mTransportControlGlue.setSubtitle(mObject.getDescription());
        playerAdapter.setDataSource(Uri.parse(mObject.getVideo()));
        Log.e("TAG PLAY FULL",mObject.getVideo());
        MyTrackApplication myTrackApplication = MyTrackApplication.getInstance();
        myTrackApplication.trackScreenView(TAGSCREEN,
                mObject.getName(),
                "Watch Video on FullScreen Mode",0);
    } catch (Exception e) {
        e.printStackTrace();
        Log.e(TAG,e.getMessage());
    }
}

Answer 1

如果您想向默认传输控件布局添加其他操作，您需要扩展 PlaybackTransportControlGlue 类并覆盖添加操作的方法。

下面的示例展示了如何添加一个额外的主要操作(顶行，搜索栏上方)以跳至下一段内容，以及一个辅助操作(搜索栏下方)以启用隐藏式字幕。此示例使用 MediaPlayerAdapter 类，因为这是您在问题中使用的类，但这适用于任何 PlayerAdapter 实现。

public class VideoPlayerGlue extends PlaybackTransportControlGlue<MediaPlayerAdapter> {

    private PlaybackControlsRow.SkipNextAction skipNextAction;
    private PlaybackControlsRow.ClosedCaptioningAction closedCaptioningAction;

    public VideoPlayerGlue(Context context, MediaPlayerAdapter impl) {
        super(context, impl);

        closedCaptioningAction = new PlaybackControlsRow.ClosedCaptioningAction(context);
        skipNextAction = new PlaybackControlsRow.SkipNextAction(context);
    }

    @Override
    protected void onCreatePrimaryActions(ArrayObjectAdapter primaryActionsAdapter) {
        super.onCreatePrimaryActions(primaryActionsAdapter); // Adds play/pause first.
        primaryActionsAdapter.add(skipNextAction); // Adds skip next second. Order matters.
    }

    @Override
    protected void onCreateSecondaryActions(ArrayObjectAdapter secondaryActionsAdapter) {
        secondaryActionsAdapter.add(closedCaptioningAction); // Adds CC to row below seek bar.
    }

    @Override
    public void onActionClicked(Action action) {
        // Handle your action clicks here to allow them to interface with
        // the player and/or the PlayerAdapter.

        super.onActionClicked(action); // Allows for built-in play/pause and seek bar clicks.
    }
}