ios-臨時禁止後CLLocationManager不返回位置

臨時禁止後CLLocationManager不返回位置

臨時禁用了本地服務和應用許可，這樣可以測試一些處理場景的代碼。再次開啟後，就不能再獲取當前位置了，代碼如下：

CLLocationManager *locationManager = [ [CLLocationManager alloc] init];
[locationManager startUpdatingLocation];
CLLocation *currentLocation = locationManager.location;
[locationManager stopUpdatingLocation];

運行代碼後locationManager.location等於nil

設備是ios6的iPad。

最佳回答：

設置CLLocationManager代理：

CLLocationManager *locationManager = [ [CLLocationManager alloc] init];
locationManager.delegate = self;
[locationManager startUpdatingLocation];

然後試試CLLocationManager的代理：

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
    self.currentLocation = newLocation;            
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
    // The location "unknown" error simply means the manager is currently unable to get the location.
    // We can ignore this error for the scenario of getting a single location fix, because we already have a
    // timeout that will stop the location manager to save power.
    if ([error code] != kCLErrorLocationUnknown) {
        [self stopUpdatingLocation:NSLocalizedString(@"Error", @"Error")];
    }
}