public static bool PerformRuntimePermissionCheckForLocation(this AppCompatActivity activity, int requestCode) { if (activity.HasLocationPermissions()) { return(true); } if (activity.MustShowPermissionRationale()) { var layoutForSnackbar = activity.FindViewById(Android.Resource.Id.Content); var requestPermissionAction = new Action <View>(delegate { ActivityCompat.RequestPermissions(activity, PERMISSIONS_LOCATION, requestCode); }); Snackbar.Make(layoutForSnackbar, xMarksThePub.Resource.String.location_permission_rationale, Snackbar.LengthIndefinite) .SetAction(xMarksThePub.Resource.String.ok, requestPermissionAction); } else { ActivityCompat.RequestPermissions(activity, PERMISSIONS_LOCATION, requestCode); } return(false); }