iOS, How to use GMSCoordinateBounds to show all the markers of the map?

- (void)focusMapToShowAllMarkers{    GMSCoordinateBounds *bounds = [[GMSCoordinateBounds alloc] init];    for (GMSMarker *marker in <An array of your markers>)        bounds = [bounds includingCoordinate:marker.position];    [<yourMap> animateWithCameraUpdate:[GMSCameraUpdate fitBounds:bounds withPadding:30.0f]];}

UPDATE:

are you sure there is nothing wrong in you array of markers and the coordinates?I've tried this code and is working perfectly. I've put this on the viewDidAppear

NSMutableArray *array = [[NSMutableArray alloc]initWithObjects:[[NSDictionary alloc]initWithObjectsAndKeys:@"44.66",@"latitude",@"21.33",@"longitude", nil],                         [[NSDictionary alloc]initWithObjectsAndKeys:@"44.66",@"latitude",@"21.453",@"longitude", nil],                         [[NSDictionary alloc]initWithObjectsAndKeys:@"44.44",@"latitude",@"21.993",@"longitude", nil],                         [[NSDictionary alloc]initWithObjectsAndKeys:@"44.635",@"latitude",@"21.553",@"longitude", nil],                         [[NSDictionary alloc]initWithObjectsAndKeys:@"44.3546",@"latitude",@"21.663",@"longitude", nil],                         [[NSDictionary alloc]initWithObjectsAndKeys:@"44.6643",@"latitude",@"21.212",@"longitude", nil],                         [[NSDictionary alloc]initWithObjectsAndKeys:@"44.63466",@"latitude",@"21.3523",@"longitude", nil],nil];GMSCoordinateBounds *bounds = [[GMSCoordinateBounds alloc] init];CLLocationCoordinate2D location;for (NSDictionary *dictionary in array){    location.latitude = [dictionary[@"latitude"] floatValue];    location.longitude = [dictionary[@"longitude"] floatValue];    // Creates a marker in the center of the map.    GMSMarker *marker = [[GMSMarker alloc] init];    marker.icon = [UIImage imageNamed:(@"marker.png")];    marker.position = CLLocationCoordinate2DMake(location.latitude, location.longitude);    bounds = [bounds includingCoordinate:marker.position];    marker.title = dictionary[@"type"];    marker.map = mapView_;}[mapView_ animateWithCameraUpdate:[GMSCameraUpdate fitBounds:bounds withPadding:30.0f]];

This is my result:

Swift 3 - Xcode 8

var bounds = GMSCoordinateBounds()        for marker in yourArrayOfMarkers        {            bounds = bounds.includingCoordinate(marker.position)        }        let update = GMSCameraUpdate.fit(bounds, withPadding: 60)        mapView.animate(with: update)

Clean swift 3 version:

let bounds = markers.reduce(GMSCoordinateBounds()) {     $0.includingCoordinate($1.position) }mapView.animate(with: .fit(bounds, withPadding: 30.0))