Android ImageView - Get coordinates of tap (click) regardless of scroll location or zoom scale

Question

Background: I have an ImageView that I\'ve modified to be scrollable (drag) and zoom-able (pinch zoom). I used the exact technique mentioned in the \"Hello,

Answer 1

You can also calculate the inverse matrix and use the mapPoints() method:

 // Get the inverse matrix
 Matrix inverseMatrix = new Matrix();
 matrix.invert(inverseMatrix);

 // Transform to relative coordinates
 float[] point = new float[2];
 point[0] = e.getX();
 point[1] = e.getY();
 inverseMatrix.mapPoints(point);