我的应用程序在iphone中打开/关闭GPS位置

Question

我检查GPS位置on/off是否使用此代码

BOOL servicesEnabled = [CLLocationManager locationServicesEnabled];

在iphone中打开/关闭LocationServices时它可以正常工作，但我为我的应用设置了LocationServices，它只返回servicesEnabled到YES，那个时间[CLLocationManager locationServicesEnabled]如何检查{{ 1}}在我的应用程序中 例如：我禁用我的应用位置服务，如Instagram，如何解决此问题以检查iphone或ipad中的特定应用中的locationServicesEnabled？

Answer 1

使用CLLocationManagerDelegate's locationManager: didFailWithError:方法检查kCLErrorDenied错误，看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);
}

如果您的应用禁用了位置服务，那么它会给您错误

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