how to detect collision of image views in a puzzle game
<p>i am doing a simple  jigsaw puzzle game.</p>

<p>for that i crop a single image into 9 pieces and display it on 9 image views.</p>

<p>Now i need to detect collision when one image view is comes over the half of another image view frame,</p>

<p>and replace image or image view each other.</p>

<p>how can i done can any one please help me.  </p>
