gistfile1.txt

-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {
    [mapView_ clear];
    
    CLLocation *location = (CLLocation*)locations.firstObject;
    
    GMSMarker *pinview = [[GMSMarker alloc] init];
    pinview.position = CLLocationCoordinate2DMake(location.coordinate.latitude, location.coordinate.longitude);
    pinview.icon = [GMSMarker markerImageWithColor:[UIColor blueColor]];
    pinview.title = @"title";
    pinview.snippet = @"sub title";
    pinview.map = mapView_;
    
    GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:location.coordinate.latitude
                                                            longitude:location.coordinate.longitude
                                                                 zoom:6];
    
    [mapView_ animateToCameraPosition:camera];
}