Shulou(Shulou.com)06/02 Report--

What this article shares with you is about the transmission process after the Android Touch incident. The editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article. Without saying much, let's take a look at it with the editor.

After the user touches the screen, it is passed by the dispatchTouchEvent method of the current top-most viewGroup.

The onInterceptTouchEvent method is then triggered. The OnTouch event is then triggered.

The process is as follows:

First trigger the dispatchTouchEvent of ACTIVITY

Then trigger the onUserInteraction of ACTIVITY

Then trigger the dispatchTouchEvent of LAYOUT

Then trigger the onInterceptTouchEvent of LAYOUT.

Gesture identification (detector) in Android is implemented through the GestureDetector.OnGestureListener interface, and the input to this interface is the generated Touch event MotionEvent.

You can put the onTouchEvent of GestureDetector into the above methods according to the actual situation you want to deal with.

The above is what the transmission process is like after the Android Touch event. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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