Cannot put a google maps GMSMapView in a subview of main main view?

Question

I'm struggling with this problem! I want to add a google maps GMSMapView into a UIView that is only a portion of the main UIView of my ViewController.

It should be simple... I created with the storyboard a UIView of the size I want and put it in the main UIView.

Snippet from Interface file:

@interface MapViewController : UIViewController <CLLocationManagerDelegate>  @property(nonatomic) IBOutlet GMSMapView *mapView; 

With the mapView linked with this UIView inside the main UIView.

What I do in the implementation:

@synthesize mapView = _mapView;  - (void)viewDidLoad {     [super viewDidLoad];     // Do any additional setup after loading the view.      GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.8683                                                             longitude:151.2086                                                                  zoom:10];     _mapView = [GMSMapView mapWithFrame:_mapView.bounds camera:camera];     _mapView.myLocationEnabled = YES;  } 

This should work, shouldn't it? What I get is that my internal UIView is empty.

If I instantiate a map following google's starting guide Google Map Integration Document, it works but it assigns the map to the MAIN UIView and thats a different thing.

I tried even changing the class of my mapView in the storyboard from UIView to GMSMapView. The map is showed in the inner view but it is initialized in a strange way making

1. The system throwing an error saying

"Failed to make complete frame buffer"

and slowing down a lot the loading of the view (it takes 2-3 seconds on the simulator)

2. The map not responding in any camera change done in the viewDidLoad method.

Any suggestions?

I read some posts here on StackOverflow but couldn't find a valid solution :(

Answer 1

Based on other answers, here are three ways that actually work.

1. Put a view on the XIB and change its class to GMSMapView in XIB builder. See *map1 below. Or...
2. Code it all. Add the map as a subview of the main view. See *map2 below. Or...
3. Add the map as a subview of another subview already in the XIB with an outlet. *map3 below.

.h

@interface GPViewController : UIViewController @property (strong, nonatomic) IBOutlet GMSMapView *map1; @property (strong, nonatomic) IBOutlet UIView *plainViewOnXIBHoldsMap3; @end 

.m

- (void)viewDidLoad{     [super viewDidLoad];     GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.0                                                         longitude:151.20                                                              zoom:6];      /* Option 1. view on XIB is class GSMMapView */     self.map1.camera = camera;      /* Option 2. add a map as a subview */     GMSMapView *map2 = [GMSMapView mapWithFrame:CGRectMake(0, 0, 100, 100) camera:camera];     [self.view addSubview:map2];      /* Option 3. add a map to a subview already on the XIB */     GMSMapView *map3 = [GMSMapView mapWithFrame:self.plainViewOnXIBHoldsMap3.bounds camera:camera];     [self.plainViewOnXIBHoldsMap addSubview:map3]; }