对事件的分发支持如下：
####### 这里的View是只textview类似的不能有子View的View，不是最大的父类View.
重写textview的时候 可以继承到dispatchTouchEvent 这是从View里面拿到的
textview类似的view里面没有这个方法 也就不会处理 但你继承了 就会处理
ACTION_CANCEL的执行 只是在你滑动超过了这个控件之外的时候 才会触发
每个轮流执行下去的都会执行ACTION_DOWN 但是只有最后处理事件的地方或者返回true的地方才会执行move和up 事件
所谓消费了此事件就是down move up都执行了 其他的 都只会执行一个down事件
| Activity | ViewGroup | View | |
| dispatchTouchEvent | Yes | Yes | Yes |
| onInterceptTouchEvent | No | Yes | No |
| onTouchEvent | Yes | Yes | Yes |
顺序是Activity——>ViewGroup——>View
如果都返回Super默认值 执行的逻辑是
Activity onTouchEvent 返回true 返回false 他们都一样
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
ViewGroup onInterceptTouchEvent ACTION_DOWN
View dispatchTouchEvent ACTION_DOWN
View onTouchEvent ACTION_DOWN
ViewGroup onTouchEvent ACTION_DOWN
Activity onTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
Activity onTouchEvent ACTION_MOVE
……
（dispatchTouchEvent和onTouchEvent的ACTION_MOVE 会顺序一起执行多次）
Activity dispatchTouchEvent ACTION_UP
Activity onTouchEvent ACTION_UP
Activity dispatchTouchEvent 返回true 或者false 其他都默认
####### dispatchTouchEvent这里的 true 或者false是一样的结果 都会拦截 只有默认的不会拦截
Activity dispatchTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
Activity dispatchTouchEvent ACTION_UP
一个down一个up中间全是move 别的都不会执行
View dispatchTouchEvent 返回true 其他都默认
所有的onTouchEvent 都不会执行 其余的全部执行
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
ViewGroup onInterceptTouchEvent ACTION_DOWN
View dispatchTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
ViewGroup dispatchTouchEvent ACTION_MOVE
ViewGroup onInterceptTouchEvent ACTION_MOVE
View dispatchTouchEvent ACTION_MOVE
Activity dispatchTouchEvent ACTION_UP
ViewGroup dispatchTouchEvent ACTION_UP
ViewGroup onInterceptTouchEvent ACTION_UP
View dispatchTouchEvent ACTION_UP
View dispatchTouchEvent 返回false 其他都默认
这时候 view的onTouchEvent 不会执行 其余的down都会执行
最终由Activity的dispatchTouchEvent和onTouchEvent执行ACTION_MOVE和最终的ACTION_UP
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
ViewGroup onInterceptTouchEvent ACTION_DOWN
View dispatchTouchEvent ACTION_DOWN
ViewGroup onTouchEvent ACTION_DOWN
Activity onTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
Activity onTouchEvent ACTION_MOVE
……
Activity dispatchTouchEvent ACTION_UP
Activity onTouchEvent ACTION_UP
View onTouchEvent 返回true 其他都默认
Activity和ViewGroup的onTouchEvent不会执行 别的全部动作都执行
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
ViewGroup onInterceptTouchEvent ACTION_DOWN
View dispatchTouchEvent ACTION_DOWN
View onTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
ViewGroup dispatchTouchEvent ACTION_MOVE
ViewGroup onInterceptTouchEvent ACTION_MOVE
View dispatchTouchEvent ACTION_MOVE
View onTouchEvent ACTION_MOVE
……
Activity dispatchTouchEvent ACTION_UP
ViewGroup dispatchTouchEvent ACTION_UP
ViewGroup onInterceptTouchEvent ACTION_UP
View dispatchTouchEvent ACTION_UP
View onTouchEvent ACTION_UP
View onTouchEvent 返回false 其他都默认 所有的down都会执行
最终由Activity的dispatchTouchEvent和onTouchEvent执行ACTION_MOVE和最终的ACTION_UP
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
ViewGroup onInterceptTouchEvent ACTION_DOWN
View dispatchTouchEvent ACTION_DOWN
View onTouchEvent ACTION_DOWN
ViewGroup onTouchEvent ACTION_DOWN
Activity onTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
Activity onTouchEvent ACTION_MOVE
……
Activity dispatchTouchEvent ACTION_UP
Activity onTouchEvent ACTION_UP
ViewGroup dispatchTouchEvent 返回true 其他都默认
这时候只执行了Activity和ViewGroup的dispatchTouchEvent方法
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
ViewGroup dispatchTouchEvent ACTION_MOVE
……
Activity dispatchTouchEvent ACTION_UP
ViewGroup dispatchTouchEvent ACTION_UP
ViewGroup dispatchTouchEvent 返回false 其他都默认
这时候 执行了Activity和ViewGroup的dispatchTouchEvent
的ACTION_DOWN方法 之后由还有activity的dispatchTouchEvent和onTouchEvent方法执行到底
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
Activity onTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
Activity onTouchEvent ACTION_MOVE
……
Activity dispatchTouchEvent ACTION_UP
Activity onTouchEvent ACTION_UP
ViewGroup onInterceptTouchEvent 返回true 其他都默认
这时候 执行了Activity和ViewGroup的所有ACTION_DOWN方法
之后还由activity的dispatchTouchEvent和onTouchEvent方法执行到底
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
ViewGroup onInterceptTouchEvent ACTION_DOWN
ViewGroup onTouchEvent ACTION_DOWN
Activity onTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
Activity onTouchEvent ACTION_MOVE
……
Activity dispatchTouchEvent ACTION_UP
Activity onTouchEvent ACTION_UP
ViewGroup onInterceptTouchEvent 返回false 其他都默认
这时候 执行了所有ACTION_DOWN方法
之后还由activity的dispatchTouchEvent和onTouchEvent方法执行到底
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
ViewGroup onInterceptTouchEvent ACTION_DOWN
View onInterceptTouchEvent ACTION_DOWN
View onTouchEvent ACTION_DOWN
ViewGroup onTouchEvent ACTION_DOWN
Activity onTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
Activity onTouchEvent ACTION_MOVE
……
Activity dispatchTouchEvent ACTION_UP
Activity onTouchEvent ACTION_UP
ViewGroup onTouchEvent 返回true 其他都默认
这时候 activity的ACTION_DOWN不执行 执行了其他的所有ACTION_DOWN方法
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
ViewGroup onInterceptTouchEvent ACTION_DOWN
View onInterceptTouchEvent ACTION_DOWN
View onTouchEvent ACTION_DOWN
ViewGroup onTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
ViewGroup dispatchTouchEvent ACTION_MOVE
ViewGroup onTouchEvent ACTION_MOVE
……
Activity dispatchTouchEvent ACTION_UP
ViewGroup dispatchTouchEvent ACTION_UP
ViewGroup onTouchEvent ACTION_UP
ViewGroup onTouchEvent 返回false 其他都默认
这时候 执行了所有ACTION_DOWN方法
之后还由activity的dispatchTouchEvent和onTouchEvent方法执行到底
Activity dispatchTouchEvent ACTION_DOWN
ViewGroup dispatchTouchEvent ACTION_DOWN
ViewGroup onInterceptTouchEvent ACTION_DOWN
View onInterceptTouchEvent ACTION_DOWN
View onTouchEvent ACTION_DOWN
ViewGroup onTouchEvent ACTION_DOWN
Activity onTouchEvent ACTION_DOWN
Activity dispatchTouchEvent ACTION_MOVE
Activity onTouchEvent ACTION_MOVE
……
Activity dispatchTouchEvent ACTION_UP
Activity onTouchEvent ACTION_UP