How to get a continuous Touch Event?

Question

My class extends View and I need to get continuous touch events on it.

If I use:

public boolean onTouchEvent(MotionEvent me) {

    if(me.getAction()         


        

Answer 1

All these answer are partially correct but they do not resolve in the right way the problem.

First of all, for everyone out there that decide to track when the event is ACTION_MOVE. Well that works only guess when? When user move his finger, so could if you decide to implement a custom thumb control is okay but for a normal custom button that's not the case.

Second, using a flag inside ACTION_DOWN and check it in ACTION_UP seems the logic way to do it, but as Clusterfux find out if you implement a while(!up_flag) logic you get stuck into troubles ;)

So the proper way to do it is mentioned here:

Continuous "Action_DOWN" in Android

Just keep in mind that if the logic you're going to write during the continuous press has to modify the UI in some way, you have to do it from the main thread in all the other cases it's better use another thread.