iOS 10中位置权限对话框频繁弹出

Question

iOS 10中，有时在安装应用程序时，位置权限提示会打开很多次，并且卡住所有应用程序，无法继续操作。

以下是我的代码，在iOS 10之前可以正常工作：

-(void)startLocationManager{  
    self.locationManager=[[CLLocationManager alloc]init];
    self.locationManager.desiredAccuracy=kCLLocationAccuracyBest;
    self.locationManager.delegate=self;
    if ([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
        [self.locationManager requestWhenInUseAuthorization];
    }

    [self.locationManager startUpdatingLocation];
}

-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{
    if (self.myCurrentLocation==nil) {
        self.myCurrentLocation=[locations lastObject];
        [[WALocationManager WALocationSharedInstance] checkLatestLocation];
    }
    else{
        if (self.myCurrentLocation.horizontalAccuracy < 0){
            return;
        }
        self.myCurrentLocation=[locations lastObject];
        if([[WALocationManager WALocationSharedInstance] currentLocation]!=self.myCurrentLocation ){

        }
    }
}

在我的plist文件中，

<key>NSLocationAlwaysUsageDescription</key>
<string>This app will use your location to get most nearyby activity around you.</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>This app will use your location.</string>

- Bhavin Bhadani

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你在哪里调用了startLocationManager？ - Anbu.Karthik

@Anbu.Karthik 在 appdelegate 中.. didlaunch - Bhavin Bhadani

从那里移除，并添加到某个类中，然后尝试一次。 - Anbu.Karthik

抱歉，这不是一个演示项目...它在iOS 9上工作正常，但在10上有时会出现很多提示，应用程序无法处理。 - Bhavin Bhadani

在调用 requestWhenInUseAuthorization 之前，请检查授权状态。 - Sachin Vas

Answer 1

无论使用iOS 10还是其他版本，只有在获得了权限后才能开始更新位置信息。在请求权限之前，您还应该检查是否已经获得了权限。

-(void)startLocationManager{
    self.locationManager=[[CLLocationManager alloc]init];
    self.locationManager.desiredAccuracy=kCLLocationAccuracyBest;
    self.locationManager.delegate=self;
    // Check for current permissions
    [self checkLocationAuth:[CLLocationManager authorizationStatus]];
}

-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status{
    [self checkLocationAuth:status];
}


-(void)checkLocationAuth:(CLAuthorizationStatus)status{
    switch (status) {
        case kCLAuthorizationStatusAuthorizedWhenInUse:
        case kCLAuthorizationStatusAuthorizedAlways:
            [self.locationManager startUpdatingLocation];
            break;
            // did not ask for permission, ask now
        case kCLAuthorizationStatusNotDetermined:
            if ([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
                [self.locationManager requestWhenInUseAuthorization];
            } else { // iOS < 8? implicitly request permission
                [self.locationManager startUpdatingLocation];
            }
            break;
        // Also need to handle failures, etc
        default:
            break;
    }
}

- Moshe Gottlieb

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好的，让我试试这个。 - Bhavin Bhadani

Answer 2

也许您可以尝试以下检查，看看是否有帮助：

不要每次都调用requestWhenInUseAuthorization。

检查locationServicesEnabled和authorizationStatus，只有在authorizationStatus为kCLAuthorizationStatusDenied且locationServicesEnabled返回false时才调用requestWhenInUseAuthorization。

例如：

if(![CLLocationManager locationServicesEnabled] && 
   [CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied)
{
   if ([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {

        [self.locationManager requestWhenInUseAuthorization];

    }
}

希望能有所帮助 :)

- Ronak Chaniyara

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好的，我会尝试这个方法并检查它是否有帮助。谢谢。 - Bhavin Bhadani