Exoplayer -如何在点击屏幕时只显示控制按钮

public class CustomExoPlayerView extends PlayerView {
    private boolean isControlsVisible = false;

    public CustomExoPlayerView(Context context) {
        super(context);
    }

    public CustomExoPlayerView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

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

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        switch (ev.getAction()) {
            case MotionEvent.ACTION_DOWN:
                // 用户点击屏幕时显示控制按钮
                showControls();
                break;
            case MotionEvent.ACTION_UP:
                // 用户松开屏幕时隐藏控制按钮
                hideControls();
                break;
        }
        return true;
    }

    private void showControls() {
        if (!isControlsVisible) {
            // 显示控制按钮的逻辑代码
            isControlsVisible = true;
        }
    }

    private void hideControls() {
        if (isControlsVisible) {
            // 隐藏控制按钮的逻辑代码
            isControlsVisible = false;
        }
    }
}