触发事件传递

一、View(Button,TextView等)

点击事件,正常执行顺序:

按下触发ACTION_DOWN

(Activity)dispatchTouchEvent->(View)dispatchTouchEvent->(View)注册的onTouch监听事件->(View)onTouchEvent

接着弹起触发ACTION_UP

(Activity)dispatchTouchEvent->(View)dispatchTouchEvent->(View)注册的onTouch监听事件->(View)onTouchEvent->(View)onClick监听事件

如果不想执行onClick监听事件，则可以在onTouch监听事件中返回true，则不会执行onTouchEvent，也就不会去执行onClick监听事件

二、ViewGroup(LinearLayout,ListView等)

点击事件,正常执行顺序:

按下触发ACTION_DOWN

(Activity)dispatchTouchEvent->(ViewGroup)dispatchTouchuEvent->(ViewGroup)onInterceptTouchEvent->(View)dispatchTouchEvent->(View)注册的onTouch监听事件->(View)onTouchEvent

接着弹起触发ACTION_UP

(Activity)dispatchTouchEvent->(ViewGroup)dispatchTouchuEvent->(ViewGroup)onInterceptTouchEvent->(View)dispatchTouchEvent->(View)注册的onTouch监听事件->(View)onTouchEvent->(View)onClick监听事件

这里如果ViewGroup的onInterceptTouchuEvent返回true，则下面的View事件不会执行，而会执行(ViewGroup)注册的onTouch监听事件->(ViewGroup)onTouchEvent->(ViewGroup)注册的onClick监听事件

一篇比较好的事件传递文章：http://blog.youkuaiyun.com/lmj623565791/article/details/39102591