title: iPhone - Move object along touch and drag path
body: <p>I am developing a simple animation where an <code>UIImageView</code> moves along a <code>UIBezierPath</code>, now I want to provide user interation to the moving <code>UIImageView</code> so that user can guide the <code>UIImageView</code> by touching the <code>UIImageView</code> and drag the <code>UIImageview</code> around the screen.</p>