Get the co-ordinates of a touch event on Android

Question

I\'m new to Android, I\'ve followed the hello world tutorial through and have a basic idea of what\'s going on. I\'m particularly interested in the touch screen of my T-Mob

Answer 1

You can use this function : http://developer.android.com/reference/android/view/View.html#setOnTouchListener(android.view.View.OnTouchListener)

You will probably put it in your onCreate method roughly this way (tested this time) :

Activity onCreate code

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    final TextView textView = (TextView)findViewById(R.id.textView);
    // this is the view on which you will listen for touch events
    final View touchView = findViewById(R.id.touchView);
    touchView.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            textView.setText("Touch coordinates : " +
                String.valueOf(event.getX()) + "x" + String.valueOf(event.getY()));
                return true;
        }
    });
}

layout code

Edit: I tried my code and indeed there were a few errors. Anyway, with the layout I give you here it works on my emulator. Can you provide maybe more code/context so I can see what's wrong?