深入理解 Android事件分发机制源码(基于9.0)

touch事件最开始从Activity 的 dispatchTouchEvent() 方法开始的 /frameworks/base/core/java/android/app/Activity.java /** * Called to process touch screen events. You can override this to * intercept all touch screen events before they are dispatched to the * window. Be sure to call this implementation for to