iOS 8 Map Kit Obj-C无法获取用户位置

我使用Obj-C NOT SWIFT在iOS 8中使用Map Kit.我无法获得它设置的设备位置0.00,0.00,我收到错误:

Trying to start MapKit location updates without prompting for location authorization. Must call -[CLLocationManager requestWhenInUseAuthorization] or -[CLLocationManager requestAlwaysAuthorization] first.

我实施了:(我一次只试过一次,没有运气)

if(IS_OS_8_OR_LATER) {
    [self.locationManager requestWhenInUseAuthorization];
    [self.locationManager requestAlwaysAuthorization];
}
[self.locationManager startUpdatingLocation]; 

并在info.plist中

NSLocationWhenInUseUsageDescription  :   App would like to use your location.
NSLocationAlwaysUsageDescription  :  App would like to use your location.

我得到提示允许应用程序使用我的位置,但在我同意没有任何变化.该位置显示为0.00,0.00.

显示用户位置的代码:

//Get Location
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.distanceFilter = kCLDistanceFilterNone;
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[self.locationManager startUpdatingLocation];

MKCoordinateRegion region = { { 0.0, 0.0 }, { 0.0, 0.0 } };
region.center.latitude = self.locationManager.location.coordinate.latitude;
region.center.longitude = self.locationManager.location.coordinate.longitude;
region.span.longitudeDelta = 0.005f;
region.span.longitudeDelta = 0.005f;
[mapView setRegion:region animated:YES];

麦克风.

**编辑:查看下面的答案.