Flow of touch events

Question

What is the complete flow of events when touching the screen in Android?

As per my understanding, when user touches the screen:

1. Touch driver will find the co-ordinates and pass them to kernel
2. Kernel will pass it to framework
3. Framework will ask the graphic library to perform zoom and render (after it determines how much to zoom)

How do the drivers, kernel, native libraries, framework and application interact to achieve a desired action? I'd be great to have some light shed on this.

Answer 1

Please take a look at [diagram here]. In nutshell it is system calls and they are handled by OS

Answer 2

Hope this is will help you out

Touch Event Flow in Android