Android- Google Map v2绘制圆圈

Question

Google, on Feb 26, released Circle as an overlay type:

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

But how do I update to the new release of Google Map V2? When will it be available in Android SDK Manager? I have the previous Google Map V2 library within "Google Play Services" (Rev. 5) which does NOT include Circle class

Answer 1

To update Google MAP V2:

Open Android SDK Manager -> Go to Extras -> Check for the update of Google Play Service . if it doesn't shows the update available , then go to Packages->Reload . update the google play service to Revision 5 .

After that remove the old Google Play Service Library project from Eclipse Workspace. import it again. add this library project in your current project. now u will have the Circle class available under com.google.android.gms.maps.model package. and you can use that to add circle in your map.

To Add Circle :

mMap.addCircle(new CircleOptions()
        .center(new LatLng(location.getLatitude(), location.getLongitude()))
        .radius(100)
        .strokeColor(Color.RED)
        .fillColor(Color.BLUE));

And for your information, this is Release note for changes of February 2013 .

EDIT : This is Release notes for June 2016. You can now make the circles clickable, which may be helpful if you want to do some action with circle.