小编use*_*803的帖子

嗨，我正在将chromecast功能集成到我现有的应用程序中。我具有以下代码：

public class VideoBrowserActivity extends AppCompatActivity {

    private static final String TAG = "VideoBrowserActivity";
    private boolean mIsHoneyCombOrAbove = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB;
    private Toolbar mToolbar;
    private CastContext mCastContext;
    private MenuItem mediaRouteMenuItem;
    private IntroductoryOverlay mIntroductoryOverlay;
    private CastStateListener mCastStateListener;

    /*
     * (non-Javadoc)
     * @see android.support.v4.app.FragmentActivity#onCreate(android.os.Bundle)
     */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.video_browser);
        setupActionBar();

        mCastStateListener = new CastStateListener() {
            @Override
            public void onCastStateChanged(int newState) {
                if (newState != CastState.NO_DEVICES_AVAILABLE) {
                    Log.e("DEBUG","===");
                    showIntroductoryOverlay();
                }
            }
        };

        mCastContext = CastContext.getSharedInstance(this);
    }

    @Override
    protected void …