Draw a Circle GeoFence with Preview in Android

Question

First of all my question is a bit different from other questions about GeoFencing in gmap in Android.

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.

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.

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:

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?

Thanks in advance!

Answer 1

https://developers.google.com/android/reference/com/google/android/gms/maps/model/Circle


CircleOptions circleOptions = new CircleOptions()
  .center( new LatLng(fence.getLatitude(), fence.getLongitude()) )
  .radius( fence.getRadius() )
  .fillColor(0x40ff0000) <Your Color code>
  .strokeColor(Color.TRANSPARENT)
  .strokeWidth(2);