我不明白为什么在调用 stopUpdatingLocation 后灰色 gps 箭头不会消失。这是我的代码:
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
if (self.locationManager == nil)
{
self.locationManager = [[[CLLocationManager alloc] init]autorelease];
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
self.locationManager.delegate = self;
}
CLLocation *location = [self.locationManager location];
CLLocationCoordinate2D coordinate = [location coordinate];
g_lat = coordinate.latitude;
g_lng = coordinate.longitude;
[self.locationManager startUpdatingLocation];
}
这是我的didUpdateLocation:
- (void) locationManager:(CLLocationManager *)manager didUpdateToLocation: (CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
NSLog(@"Core location has a position.");
CLLocationCoordinate2D coordinate = [newLocation coordinate];
global_lat = coordinate.latitude;
global_lng = coordinate.longitude;
[self.locationManager stopUpdatingLocation];
}
- (void) locationManager:(CLLocationManager *)manager
didFailWithError:(NSError *)error
{
NSLog(@"Core location can't get a fix.");
}
我还检查了是否有其他应用程序正在使用 GPS!20 分钟后,箭头仍然存在....感谢您的帮助!
编辑:
我想我错过了一些非常重要的东西,在应用程序启动后我的第一个视图中有一个谷歌地图!这是我的代码:
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:g_lat
longitude:g_lng
zoom:15];
self.mapView = [GMSMapView mapWithFrame:CGRectMake(1.0f, 160.0f, 320.0f, 100)
camera:camera];
self.mapView.delegate = self;
self.showsUserLocation = YES;
self.mapView.trafficEnabled = YES;
self.mapView.myLocationEnabled = YES;
self.mapView.settings.myLocationButton = YES;
self.mapView.settings.compassButton = YES;
[self.mapView setUserInteractionEnabled:YES];
[self.mapView setCamera:camera];
[self.containerView addSubview:self.mapView];
谷歌地图有可能一直在更新吗?如果是,我该如何阻止它?