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也不怪你。特异跑车2007总动员！成龙特技组指导担任电影导演抓狂飙速！When x=3, ViewGroup2 has already blocked the event when x=3. Why did MyView still receive an event? If the action value of this event received by MyView is printed out with log, it is found to be ACTION_CANCEL, which indicates that this event has ended for non-human reasons. Let me give an example of the ACTION_CANCEL event. Generally, when we handle the event, we will record something in the down event and then clear the record in the up event. If you have a Button in ListView, When we hold down the Button, the button receives the down event. At this moment, the finger starts to slide, and the event will be intercepted by ListView. At this time, the button will never receive the up event again. However, when ListView intercepts the event, the button will receive the cancel event, indicating that the event is ended for non-human reasons. Therefore, Cancel can do what the up event wants to do at this time.张大人，听说你在大理寺当官？是真的？张杨点头道：不错。张杨也喝道：别东一榔头西一棒子了。秦国灭亡之后，再无人可以管辖到他们，蛮人再次自得其乐。来一个人。