title: How to find touch area for android devices?
body: <p>Im trying to find touch area for android screen like how much area is covered by any finger,i know about <code>event.getSize()</code> method but its always gives me <code>0</code> output and <code>pointerIndex</code> is also <code>0</code>. how can i find touch area for all android devices as further i also need to calculate touch pressure?</p>