通过Ext进行手势处理

Ext手势处理提供了多种手势回调，通过对象mPlayerCore.playerGestureLayer来添加手势回调。

• 单击事件
  fun addOnSingleTapListener( ​ listener: OnSingleTapListener, ​ priority: Int = PriorityGestureProcessor.PRIORITY_NORMAL )
• 单指双击
  fun addOnDoubleTapListener(listener: OnDoubleTapListener, priority: Int = PriorityGestureProcessor.PRIORITY_NORMAL)
• 两指双击
  fun addOnTwoFingerDoubleTapListener(listener: OnTwoFingerDoubleTapListener, priority: Int = PriorityGestureProcessor.PRIORITY_NORMAL)
• 缩放
  fun setResizableGestureListener(listener: OnResizableGestureListener?)
• 水平滑动
  fun setHorizontalScrollListener(listener: HorizontalScrollListener?)
• 右边竖直滑动
  fun setVerticalScrollRightListener(listener: VerticalScrollRightListener?)
• 左边竖直滑动
  fun setVerticalScrollLeftListener(listener: VerticalScrollLeftListener?)
• 长按
  fun addOnLongPressListener(listener: OnLongPressListener, priority: Int = PriorityGestureProcessor.PRIORITY_NORMAL)
• 自定义
  fun setOnTouchListener(listener: OnTouchListener?)

在播放器销毁前，记得调用remove方法移除添加的listener。