Question

This is a fairly simple question I am sure, but I can’t seem to figure out a way around this little thing. First, here is my code:

switch (event.getAction() & MotionEvent.ACTION_MASK) {

        case MotionEvent.ACTION_DOWN:
            Log.w("Platformer", "primary down");
            break;

        case MotionEvent.ACTION_UP:
            Log.w("Platformer", "primary up");
            break;

        case MotionEvent.ACTION_POINTER_1_DOWN:
            Log.w("Platformer", "secondary down");
            break;

        case MotionEvent.ACTION_POINTER_1_UP:
            Log.w("Platformer", "secondary up");
            break;
        }

All I wanted it to do was when I pressed down, it would show me in the log whether the primary or secondary pointer was down, and when I release, do the same thing. The problem is, it always works on the down, but on up, whatever the 1st finger that comes up is, regardless of if it was the primary or secondary pointer originally, it returns that the secondary pointer was removed. Any idea around this? I am guessing it is something simple, but I don’t know where to look truthfully. Thanks in advance.

WWaldo

Answer 1

Use getPointerId to get which pointer is being selected.

Edit

To answer the question in the comment, try:

    for (int i = 0; i < ev.getPointerCount(); i++) {
        switch (ev.getAction() & MotionEvent.ACTION_MASK) {
        case MotionEvent.ACTION_DOWN:
        case MotionEvent.ACTION_POINTER_DOWN:
            Log.d(TAG,"down "+ ev.getPointerId(i));
            break;
        case MotionEvent.ACTION_MOVE:
            Log.d(TAG,"move "+ ev.getPointerId(i));
            break;
        case MotionEvent.ACTION_UP:
        case MotionEvent.ACTION_POINTER_UP:
            Log.d(TAG,"up "+ ev.getPointerId(i));
            break;  
        }
    }