ios - CoreLocation 在 iOS 8 中不起作用

Question

我在我的应用中使用定位服务。

但是 [CLLocationManager authorizationStatus] 是 kCLAuthorizationStatusNotDetermined 都在 [self.locationManager startUpdatingLocation];

之前

项目代码:

实现

#import <CoreLocation/CoreLocation.h> 
@interface NewRunViewController () <CLLocationManagerDelegate>

@property (nonatomic, strong) CLLocationManager *locationManager;

- (void)viewDidLoad
{
    [super viewDidLoad];

    [self startLocationUpdates];
}

- (void)startLocationUpdates
{
    // Create the location manager if this object does not
    // already have one.
    if (self.locationManager == nil) {
        self.locationManager = [[CLLocationManager alloc] init];
    }

    self.locationManager.delegate = self;
    self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    self.locationManager.distanceFilter = 10;

    if ([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
        [self.locationManager requestWhenInUseAuthorization];
    }
    [self.locationManager startUpdatingLocation];
}

我还将 NSLocationWhenInUseUsageDescription 键添加到 info.plist 文件中。并且应用程序也不会请求用户许可来使用核心位置服务。谁能帮帮我？？

Answer 1

您必须为目标的键 NSLocationAlwaysUsageDescription 包含一个字符串值。

在 Xcode 中查看目标的信息页面。当系统要求用户允许在您的应用中使用位置服务时，该字符串将成为警报文本。

这是我自己的处理代码。它正在请求始终授权，但您可以将其替换为使用时。

  CLAuthorizationStatus auth = [CLLocationManager authorizationStatus];
  if (auth == kCLAuthorizationStatusNotDetermined && [self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) {
      [self.locationManager performSelector:@selector(requestAlwaysAuthorization) withObject:NULL];
  } else {
      if (auth == kCLAuthorizationStatusAuthorizedAlways) {
          [self notificationsSetup];
      } else {
          NSLog(@"Device is not authorized for proper use of the location Services, no logging will be performed");
      }
  }

您可能会发现我的 github 存储库很有帮助- TTLocationHandler on Githup