CLLocationCoordinate2D position2 = CLLocationCoordinate2DMake(59.957069, 30.323013);
GMSMarker *london2 = [GMSMarker markerWithPosition:position2];
london2.title = @"my office";
london2.snippet = @"description";
london2.map = mapView_;

- (void)viewDidLoad {
    [super viewDidLoad];
    self.mapView_.mapType = kGMSTypeNormal;
 self.mapView_.settings.compassButton = YES;
 self.mapView_.settings.myLocationButton = YES;
  self.mapView_.delegate = self;
 [GMSServices provideAPIKey:@"AIzaSyAob82BnXLkqTEKA675GbEveoTQZNBZst4"];
   GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.86
                                                            longitude:151.20
                                                                 zoom:1];
    mapView_ = [GMSMapView mapWithFrame:CGRectZero camera:camera];

    mapView_.myLocationEnabled = YES;
    mapView_.settings.compassButton = YES;
    mapView_.settings.myLocationButton = YES;
    //self.view = mapView_;

GMSMarker *london2 = [GMSMarker markerWithPosition:position2];
london2.title = @"my office";
london2.snippet = @"description";
london2.map = mapView_;