Get X/Y coordinates on ImageView touch

Question

So, I need to get coordinates of my touch on ImageView.

I have already successfully tried to get coordinates in OnTouchListener event. But it is not what i really need.

The problem is that the resolution of the screen is much lower than the resolution of the picture in ImageView.

How to get actual coordinates (maybe certain pixels) of the image?

score 2 · Answer 1 · answered Jul 27 '17 at 20:56

2

There's getLocationOnScreen() and getLocationInWindow() methods for the purpose.

imageView.setOnTouchListener(new OnTouchListener() {
            @Override public boolean onTouch(View view, MotionEvent motionEvent) {
                int[] locations = new int[2];
                view.getLocationOnScreen(locations);
                //view.getLocationInWindow(locations);
                return false;
            }
        });

answered Jul 27 '17 at 20:56

Fatih Santalu

4,641
2
17
34

it always returns me 0/256, any ideas? – Dmitry Ushkevich Jul 27 '17 at 21:21
1

Because this indicates absolute coordinate of your view. If you are looking for touch locations you can use motionEvent.getX(), motionEvent.getY() methods – Fatih Santalu Jul 27 '17 at 21:41
Much thanks for explanation, i ve already used these methods. Works fine for me. – Dmitry Ushkevich Jul 27 '17 at 21:49

score 2 · Accepted Answer · answered Jul 27 '17 at 20:57

2

Android: How do I get the x y coordinates within an image / ImageView?

imageView.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View view) {
            int[] values = new int[2]; 
            view.getLocationOnScreen(values);
            Log.d("X & Y",values[0]+" "+values[1]);
        }
    });

Something like this?

answered Jul 27 '17 at 20:57

Suhail Purkar

104
14

1

@Jana_Doe it seems strange but it always returns me 0/256 – Dmitry Ushkevich Jul 27 '17 at 21:20
Could I see the code you're using? Also maybe try some of the other implementations from the link that I posted. – Suhail Purkar Jul 27 '17 at 21:24
1

Thanks, found all required by your link – Dmitry Ushkevich Jul 27 '17 at 21:48

Get X/Y coordinates on ImageView touch

2 Answers2