Question

我在RecyclerView项目中有一个视频播放器，文本，图像（想想社交媒体帖子）。每当用户在视频上向左或向右滑动时，我都想向前或向后搜索视频。通过将以下触摸侦听器设置为我的视频播放器视图，我实现了这一点：

public abstract class OnSwipeTouchListener implements View.OnTouchListener {

    private final GestureDetector gestureDetector;

    public OnSwipeTouchListener(Context context) {
        gestureDetector = new GestureDetector(context, new GestureListener());
    }

    public abstract void onSwipeLeft();
    public abstract void onSwipeRight();
    public abstract void onSingleTap();

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        return gestureDetector.onTouchEvent(event);
    }

    private final class GestureListener extends GestureDetector.SimpleOnGestureListener {

        private static final int SWIPE_DISTANCE_THRESHOLD = 100;
        private static final int SWIPE_VELOCITY_THRESHOLD = 100;

        @Override
        public boolean onDown(MotionEvent e) {
            return true;
        }

        @Override
        public boolean onSingleTapUp(MotionEvent e) {
            onSingleTap();
            return true;
        }

        @Override
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
            float distanceX = e2.getX() - e1.getX();
            float distanceY = e2.getY() - e1.getY();
            if (Math.abs(distanceX) > Math.abs(distanceY) && Math.abs(distanceX) > SWIPE_DISTANCE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
                if (distanceX > 0)
                    onSwipeRight();
                else
                    onSwipeLeft();
                return true;
            }
            return false;
        }
    }
}

这并不总是作为recyclerview工作，或者有什么东西妨碍我，只要我轻扫，只有onDown会在我的监听器和recyclerview滚动中调用。

如果没有其他视图拦截它，我怎样才能让我的视频播放器先获得动作？

RecyclerView中的项目没有收到onFling事件，而是回收视图滚动

0 个答案: