全球定位系統位置服務不適用於iOS 8

Question

我的程序在iOS7中工作正常，但不在iOS8中。 locationManager這裏是CLLocationManager的對象。

在開始這段代碼在iOS7中工作正常，我不明白爲什麼這發生在我身上。

- (void)getCurrentLocation{ 
    locationManager = [[CLLocationManager alloc] init]; 
    geocoder = [[CLGeocoder alloc] init]; 
    locationManager.delegate = self; 
    locationManager.distanceFilter = kCLDistanceFilterNone; 
    locationManager.desiredAccuracy = kCLLocationAccuracyBest; 
    [locationManager startUpdatingLocation]; 
} 
#pragma mark - CLLocationManagerDelegate 
- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status{ 
    if (status == kCLAuthorizationStatusAuthorized) { 

     NSUserDefaults *notify = [NSUserDefaults standardUserDefaults]; 
     [notify setObject:@"GPS" forKey:@"Notification"]; 
     [notify synchronize]; 

     appDelegate = (JobDiagnosisAppDelegate *)[[UIApplication sharedApplication] delegate]; 
     [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:TRUE]; 
     [appDelegate showIndicator]; 
     [notify setObject:nil forKey:@"Notification"]; 
     [notify synchronize]; 
    } 
} 
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error 
{ 
    NSLog(@"didFailWithError: %@", error); 
    [appDelegate.objActivityAlertView close]; 
    [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:FALSE]; 

    appDelegate = (JobDiagnosisAppDelegate *)[[UIApplication sharedApplication] delegate]; 
    [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:TRUE]; 
    [appDelegate showIndicator]; 
    [self callWebserviceLocation]; 
} 

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations 
{ 
    NSLog(@"Resolving the Address"); 
    [geocoder reverseGeocodeLocation: locationManager.location completionHandler: 
    ^(NSArray *placemarks, NSError *error) { 

     //Get address 
     CLPlacemark *placemark = [placemarks objectAtIndex:0]; 

     //String to address 
     NSString *locatedaddress =[placemark valueForKey:@"administrativeArea"] ; 
     //Print the location in the console 
     NSLog(@"Currently address is: %@",locatedaddress); 

     NSUserDefaults *notifyLocation = [NSUserDefaults standardUserDefaults]; 
     [notifyLocation setObject:locatedaddress forKey:@"notifyLocation"]; 
     [notifyLocation synchronize]; 

     locationManager.delegate = nil; 
     [self callWebserviceUnRegistered]; 

    }]; 
    [locationManager stopUpdatingLocation]; 

} 

請幫忙解決這個位置問題。我是新的定位服務。

在此先感謝！

Answer 1

需要實現 [locationManager requestWhenInUseAuthorization];或

[locationManager requestAlwaysAuthorization];

如果你不做出以下兩種請求的，iOS的會忽略startUpdateLocation請求。

此外，

包括NSLocationAlwaysUsageDescription或根據其權限你所要求的NSLocationWhenInUseUsageDescription鍵的Info.plist。該字符串將由iOS顯示給用戶，以便用戶可以獲得激動人心的想法爲什麼我們的應用程序需要權限。

所以你methood改變

- (void)getCurrentLocation{ 
    locationManager = [[CLLocationManager alloc] init]; 
    geocoder = [[CLGeocoder alloc] init]; 
    locationManager.delegate = self; 
    [locationManager requestWhenInUseAuthorization]; 
    locationManager.distanceFilter = kCLDistanceFilterNone; 
    locationManager.desiredAccuracy = kCLLocationAccuracyBest; 
    [locationManager startUpdatingLocation]; 
} 

而且ASLO在info.plist中添加所需的關鍵。

希望這會有所幫助。

Answer 2

首先，不要忘了，與IOS 8，你需要NSLocationWhenInUseUsageDescription財產，以便添加到Info.plist文件提示警報，以獲得用戶的許可，並使用[locationManager requestWhenInUseAuthorization]加[locationManager requestAlwaysAuthorization];

_locationManager = [CLLocationManager new]; 

if(SYSTEM_IS_OS_8_OR_LATER) { 
    [_locationManager requestWhenInUseAuthorization]; 
    [_locationManager requestAlwaysAuthorization]; 

} 

_locationManager.delegate = self; 
_locationManager.desiredAccuracy = kCLLocationAccuracyBest; 
_locationManager startUpdatingLocation]; 

和在didUpdateLocations

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{ 

     _currentLocation = [locations objectAtIndex:0]; 
     //do your stuff with the location 

    } 

[iOS的8：定位服務不工作]的