Текущее местоположение не обновляется на реальном устройстве

Question

Я новичок в разработке iOS. Моя проблема заключается в том, что, когда я хочу, чтобы попытаться получить текущее местоположение на реальном устройстве, но он не работает и дает мне следующую ошибку:

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

Я использую Xcode 6.2 и исходный код выглядит следующим образом:

////.h 

#import <UIKit/UIKit.h> 
#import <CoreLocation/CoreLocation.h> 

@protocol LocationViewDelegate <NSObject> 

-(void)sendLocationLatitude:(double)latitude 
        longitude:(double)longitude 
       andAddress:(NSString *)address; 
@end 

@interface HomeViewController : UIViewController 

@property (nonatomic, assign) id<LocationViewDelegate> delegate; 

- (instancetype)initWithLocation:(CLLocationCoordinate2D)locationCoordinate; 
@end 

////.m 
#import "HomeViewController.h" 
#import "anotation.h" 
#import <MapKit/MapKit.h> 
#import "LocationViewController.h" 

//In ViewDidLoad 

#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) 

static LocationViewController *defaultLocation = nil; 

@interface HomeViewController() <MKMapViewDelegate,CLLocationManagerDelegate> { 

    CLLocationManager *locationManager; 
    MKMapView *_mapView; 
    MKPointAnnotation *_annotation; 

    CLLocationCoordinate2D _currentLocationCoordinate; 
    BOOL _isSendLocation; 
} 

@property (strong, nonatomic) NSString *addressString; 
@end 

@implementation HomeViewController 

@synthesize addressString = _addressString; 

- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { 

    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 
     _isSendLocation = YES; 
    } 

    return self; 
} 

- (instancetype)initWithLocation:(CLLocationCoordinate2D)locationCoordinate { 
    self = [super initWithNibName:nil bundle:nil]; 
    if (self) { 
     _isSendLocation = NO; 
     _currentLocationCoordinate = locationCoordinate; 
    } 

    return self; 
} 

- (void)viewDidLoad { 
    [super viewDidLoad]; 

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

    float fOSVersion=[[[UIDevice currentDevice] systemVersion] floatValue]; 

    if(fOSVersion>=8.0) { 

     [locationManager requestAlwaysAuthorization]; 
     CLAuthorizationStatus status = [CLLocationManager authorizationStatus]; 
     if (status == kCLAuthorizationStatusNotDetermined) { 
      [locationManager requestWhenInUseAuthorization]; 
     } else { 
      [locationManager startUpdatingLocation]; 
     } 
    } 

    UIButton *backButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 100, 44)]; 
    [backButton setImage:[UIImage imageNamed:@"back.png"] forState:UIControlStateNormal]; 

    // [backButton setTitle:NSLocalizedString(@"back", @"") forState:UIControlStateNormal]; 
    [backButton addTarget:self.navigationController action:@selector(popViewControllerAnimated:) forControlEvents:UIControlEventTouchUpInside]; 

    UIView *backButtonView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 63, 33)]; 
    // backButtonView.backgroundColor=[UIColor whiteColor]; 
    backButtonView.bounds = CGRectOffset(backButtonView.bounds, 45, 5); 
    [backButtonView addSubview:backButton]; 

    UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithCustomView:backButtonView]; 

    [self.navigationItem setLeftBarButtonItem:backItem]; 

    _mapView = [[MKMapView alloc] initWithFrame:self.view.bounds]; 
    _mapView.delegate = self; 
    _mapView.mapType = MKMapTypeStandard; 
    _mapView.zoomEnabled = YES; 
    [self.view addSubview:_mapView]; 

    if (_isSendLocation) { 
     _mapView.showsUserLocation = YES;//显示当前位置 

     UIButton *sendButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 60, 44)]; 
     UIView *avatarButtonView = [[UIView alloc] initWithFrame:CGRectMake(290, 0, 63, 33)]; 
     [sendButton setTitle:@"发送" forState:UIControlStateNormal]; 

     [sendButton setTitleColor:[UIColor whiteColor]forState:UIControlStateNormal]; 

     [sendButton addTarget:self action:@selector(sendLocation) forControlEvents:UIControlEventTouchUpInside]; 

     //avatarButtonView.backgroundColor=[UIColor whiteColor]; 
     avatarButtonView.bounds = CGRectOffset(avatarButtonView.bounds, -25, 5); 
     [avatarButtonView addSubview:sendButton]; 

     UIBarButtonItem *avatarItem = [[UIBarButtonItem alloc] initWithCustomView:avatarButtonView]; 
     [self.navigationItem setRightBarButtonItem:avatarItem]; 
     //  self.navigationItem.rightBarButtonItem.enabled = ; 

     [self startLocation]; 
    } 
    else { 

     [self removeToLocation:_currentLocationCoordinate]; 
    } 
} 

- (void)didReceiveMemoryWarning { 

    [super didReceiveMemoryWarning]; 
    // Dispose of any resources that can be recreated. 
} 


#pragma marks StatusBar 
- (UIStatusBarStyle)preferredStatusBarStyle { 

    return UIStatusBarStyleLightContent; 
} 

- (BOOL)prefersStatusBarHidden { 
    return NO; 
} 

-(void)viewWillAppear:(BOOL)animated { 

    [super viewWillAppear:animated]; 
    [self.navigationController setNavigationBarHidden:NO]; 
} 

-(void)viewWillDisappear:(BOOL)animated { 

    [super viewWillDisappear:animated]; 
} 

#pragma mark - class methods 

+ (instancetype)defaultLocation { 

    static dispatch_once_t onceToken; 
    dispatch_once(&onceToken, ^{ 
     defaultLocation = [[LocationViewController alloc] initWithNibName:nil bundle:nil]; 
    }); 

    return defaultLocation; 
} 

#pragma mark - MKMapViewDelegate 

- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation { 

    __weak typeof(self) weakSelf = self; 
    CLGeocoder *geocoder = [[CLGeocoder alloc] init]; 
    [geocoder reverseGeocodeLocation:userLocation.location completionHandler:^(NSArray *array, NSError *error) { 
     if (!error && array.count > 0) { 
      CLPlacemark *placemark = [array objectAtIndex:0]; 
      weakSelf.addressString = placemark.name; 

      [self removeToLocation:userLocation.coordinate]; 
     } 
    }]; 
} 

- (void)mapView:(MKMapView *)mapView didFailToLocateUserWithError:(NSError *)error 
{ 
} 

#pragma mark - public 

- (void)startLocation { 

    if (_isSendLocation) { 

     self.navigationItem.rightBarButtonItem.enabled = NO; 
    } 
} 

-(void)createAnnotationWithCoords:(CLLocationCoordinate2D)coords { 

    if (_annotation == nil) { 
     _annotation = [[MKPointAnnotation alloc] init]; 
    } 
    else{ 
     [_mapView removeAnnotation:_annotation]; 
    } 
    _annotation.coordinate = coords; 
    [_mapView addAnnotation:_annotation]; 
} 

- (void)removeToLocation:(CLLocationCoordinate2D)locationCoordinate { 

    _currentLocationCoordinate = locationCoordinate; 
    float zoomLevel = 0.01; 
    MKCoordinateRegion region = MKCoordinateRegionMake(_currentLocationCoordinate, MKCoordinateSpanMake(zoomLevel, zoomLevel)); 
    [_mapView setRegion:[_mapView regionThatFits:region] animated:YES]; 

    if (_isSendLocation) { 
     self.navigationItem.rightBarButtonItem.enabled = YES; 
    } 

    [self createAnnotationWithCoords:_currentLocationCoordinate]; 
} 

- (void)sendLocation { 

    if (_delegate && [_delegate respondsToSelector:@selector(sendLocationLatitude:longitude:andAddress:)]) { 
     [_delegate sendLocationLatitude:_currentLocationCoordinate.latitude longitude:_currentLocationCoordinate.longitude andAddress:_addressString]; 
    } 

    [self.navigationController popViewControllerAnimated:YES]; 
} 

- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status { 

    if (status != kCLAuthorizationStatusNotDetermined) { 
     [locationManager startUpdatingLocation]; 
    } 
} 
@end 

Answer 1

Изменение здесь

if (status != kCLAuthorizationStatusNotDetermined) { 
     [locationManager startUpdatingLocation]; 
    } 

Для

if (status == kCLAuthorizationStatusAuthorized) { 
      [locationManager startUpdatingLocation]; 
     } 

И Удалить

CLAuthorizationStatus status = [CLLocationManager authorizationStatus]; 
    if (status == kCLAuthorizationStatusNotDetermined) { 
     [locationManager requestWhenInUseAuthorization]; 
    } else { 
     [locationManager startUpdatingLocation]; 
    } 

Если вы не добавить NSLocationAlwaysUsageDescription в вашем PLIST добавить его, чтобы описать, почему вы хотите использовать местоположение службы