title: Draw a Circle GeoFence with Preview in Android
body: <p>First of all my question is a bit different from other questions about GeoFencing in gmap in Android.</p>
  
  <p>When the user start to define a circle as a GeoFence area I want to show a fixed circle in the center of the screen. In this stage the user should be able to move the map and map's zoom level. Neither move action nor zoom in/out action can change the size of the circle relative to the screen. </p>
  
  <p>When the user press to save button I want to pin that circle to the map as a CircleOption object. Then I will be able to get lon/lat and radius of CircleOption object in meters. </p>
  
  <p>I am currently working on RelativeLayout issue. I draw a fixed circle with RelativeLayout as I expect however I couldn't get current radius of that RelativeLayout circle. You can see how my RelativeLayout looks like right now:</p>
  
  <p><img src="https://i.stack.imgur.com/WcoTe.png" alt="enter image description here"></p>
  
  <p>I am not sure about the correct way of doing this. My searches redirected me to use RelativeLayout and then CircleOption. What is your advice?</p>
  
  <p>Thanks in advance!</p>