在Android-27中查看源码: 首先我们来查看单个View的触摸事件的处理,在View的dispatchTouchEvent方法中看看源码是如何处理的. public boolean dispatchTouchEvent(MotionEvent event) { // If the event should be handled by accessibility focus first. if (event.isTargetAccessibilityFocus()) { // We don'…