我的应用程序在iphone中打开/关闭GPS位置

Question

我正在检查GPS位置是on/off使用此代码

BOOL servicesEnabled = [CLLocationManager locationServicesEnabled];

它在iphone中打开/关闭LocationServices时工作正常，但我为我的应用程序设置了LocationServices它只返回servicesEnabled为YES ，那时候[CLLocationManager locationServicesEnabled]如何在我的应用程序中检查locationServicesEnabled Ex：我禁用我的应用程序位置服务像作为Instagram，如何解决这个问题来检查在iPhone或iPad的特定应用程序中的LocationServices ？

Answer 1

使用您的CLLocationManagerDelegate's locationManager: didFailWithError:方法并检查kCLErrorDenied错误以查看用户是否拒绝了位置服务。

- (void)viewDidLoad
{
    locationManager = [[CLLocationManager alloc] init];

    locationManager.delegate = self;

    locationManager.desiredAccuracy = kCLLocationAccuracyKilometer;

    // Set a movement threshold for new events.

    locationManager.distanceFilter = 500;

    [locationManager startUpdatingLocation];
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)locationManager:(CLLocationManager *)manager

     didUpdateLocations:(NSArray *)locations {

    // If it's a relatively recent event, turn off updates to save power

}

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{

    NSLog(@"%@",error);
}

如果位置服务禁用您的应用程序，那么它会给您错误

Error Domain=kCLErrorDomain Code=1 "The operation couldn’t be completed. (kCLErrorDomain error 1.)"