You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
1.8 KiB
60 lines
1.8 KiB
#if !defined(__has_feature) || !__has_feature(objc_arc) |
|
#error "This file requires ARC support." |
|
#endif |
|
|
|
#import "GoogleMapsDemos/Samples/MyLocationViewController.h" |
|
|
|
#import <GoogleMaps/GoogleMaps.h> |
|
|
|
@implementation MyLocationViewController { |
|
GMSMapView *_mapView; |
|
BOOL _firstLocationUpdate; |
|
} |
|
|
|
- (void)viewDidLoad { |
|
[super viewDidLoad]; |
|
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.868 |
|
longitude:151.2086 |
|
zoom:12]; |
|
|
|
_mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera]; |
|
_mapView.settings.compassButton = YES; |
|
_mapView.settings.myLocationButton = YES; |
|
|
|
// Listen to the myLocation property of GMSMapView. |
|
[_mapView addObserver:self |
|
forKeyPath:@"myLocation" |
|
options:NSKeyValueObservingOptionNew |
|
context:NULL]; |
|
|
|
self.view = _mapView; |
|
|
|
// Ask for My Location data after the map has already been added to the UI. |
|
dispatch_async(dispatch_get_main_queue(), ^{ |
|
_mapView.myLocationEnabled = YES; |
|
}); |
|
} |
|
|
|
- (void)dealloc { |
|
[_mapView removeObserver:self |
|
forKeyPath:@"myLocation" |
|
context:NULL]; |
|
} |
|
|
|
#pragma mark - KVO updates |
|
|
|
- (void)observeValueForKeyPath:(NSString *)keyPath |
|
ofObject:(id)object |
|
change:(NSDictionary *)change |
|
context:(void *)context { |
|
if (!_firstLocationUpdate) { |
|
// If the first location update has not yet been recieved, then jump to that |
|
// location. |
|
_firstLocationUpdate = YES; |
|
CLLocation *location = [change objectForKey:NSKeyValueChangeNewKey]; |
|
_mapView.camera = [GMSCameraPosition cameraWithTarget:location.coordinate |
|
zoom:14]; |
|
} |
|
} |
|
|
|
@end
|
|
|