Google Maps iOS SDK Fails

Question

I am using Google Maps iOS SDK with storyboard. An application starting with a navigation view controller with a root view controller with a map.

@implementation MyViewController @synthesize btnMyLock; @synthesize btnNearby; GMSMapView *mapView_; - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:20 longitude:20 zoom:0]; mapView_ = [GMSMapView mapWithFrame:CGRectZero camera:camera]; mapView_.myLocationEnabled = YES; self.view = mapView_; // Creates a marker in the center of the map. GMSMarker *marker = [[GMSMarker alloc] init]; [marker setIcon:[UIImage imageNamed:@"pin"]]; marker.position = CLLocationCoordinate2DMake(-33.86, 151.20); marker.title = @"Sydney"; marker.snippet = @"Australia"; marker.map = mapView_; mapView_.settings.compassButton = YES; [mapView_ addSubview:btnMyLock]; [mapView_ addSubview:btnNearby]; } 

The btnMyLock button presses the table view controller. On iOS 7, this is normal. But iOS 6 my application crashes. Sometimes a crash with EXC_BAD_ACCESS (code = 1) or code = 2

Answer 1

The problem is that I used the Autolayout view.

Answer 2

you forgot step 4: " Drag and Drop GoogleMaps.bundle " from the "Resources" folder into your project.

I suggest putting it in the Frameworks group. When prompted, make sure that “Copy items to target groups folder” is not selected. I ran into the same problem and this fixed it.

Answer 3

I don’t know if this caused a problem, but I wouldn’t do this:

 self.view = mapView_; 

Just add mapView_ to the subtitle, for example:

 [self.view addSubview:mapView_]; 

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In general, EXC_BAD_ACCESS crashes occur when you incorrectly manage memory (for example, an object is freed prematurely). Try to figure out which object is crashing.

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Create your buttons in code, not in xib like IBOutlets. Otherwise, they do not load, since you are not using xib.

Answer 4

Use this code when you use a Google map, and then check if it is missing when switching to another screen.

 - (void)dealloc { [super dealloc]; [mapView_ removeObserver:self forKeyPath:@"myLocation" context:NULL]; }