Get Canvas coordinates after scaling up/down or dragging in android

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Done it finally by myself.

Draw everything by applying this formula to (px,py) coordinates:

float px = ev.getX() / mScaleFactor + rect.left;
float py = ev.getY() / mScaleFactor + rect.top;
rect = canvas.getClipBounds();
//Get them in on Draw function and apply above formula before drawing

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