title: Google Maps iOS Draw circle using pan or touch gesture & show marker inside drawn circle
body: <p><a href="https://i.stack.imgur.com/4CsSb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4CsSb.png" alt="Show cluster of marker inside google maps iOS"></a>How to show some markers inside the circle I have drawn on screen with touch(pan) gesture.</p>