CODEWITHSUNDEEP
androidmulti-touch
Pat
Pat

Reputation: 21

Multiple button presses for Android 2.x

I am relatively new to this still, and I have been developing a small app that would benefit greatly from a user being able to press 2 buttons at one time. What is the best method for achieving this? I dont think that an OnClickListener works like that, and I have seen examples for doing this with an OnTouch event. However, I do not know how to set up button presses with an OnTouch event.

Upvotes: 2

Views: 11078

Answers (2)

o0'.
o0'.

Reputation: 11863

@Override
public boolean onTouchEvent (MotionEvent event) {
    if (event.getAction()==MotionEvent.ACTION_UP) {
        // reset all buttons
        ...
    }
    else {
        int count=event.getPointerCount(),vx1=-1,vy1=-1,vx2=-1,vy2=-1;
        if (count>=1) {
            vx1=(int)event.getX(0);
            vy1=(int)event.getY(0);
        }
        if (count>=2) {
            vx2=(int)event.getX(1);
            vy2=(int)event.getY(1);
        }
        ...
    }
    return true;
}

Upvotes: 3

Romain Guy
Romain Guy

Reputation: 98521

You would have to handle touch events yourself. With the multi-pointers (aka multi-touch) API it's very easy. Just override the onTouchEvent() method or register an OnTouchListener on your buttons.

Upvotes: 5

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