ios – 没有调用CLLocation didupdatetolocation

花了几天时间试图解决这个问题但无法找到任何有效的解决方案.我已经检查了stackoverflow上的所有帖子,并尝试了所有他们的解决方案,似乎没有任何工作.我也尝试过CLLocation的苹果测试项目,对我来说很好.我使用了苹果测试项目的点点滴滴

https://developer.apple.com/library/ios/samplecode/LocateMe/Listings/README_md.html

但我的代码根本不起作用. DidupdateToLocation永远不会被调用.

这是我的代码(在viewDidLoad中)

_locationManager = [[CLLocationManager alloc] init];

self.locationManager.delegate = self;



// This is the most important property to set for the manager. It ultimately determines how the manager will

// attempt to acquire location and thus,the amount of power that will be consumed.

self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;



// Once configured,the location manager must be "started"

//

// for iOS 8,specific user level permission is required,// "when-in-use" authorization grants access to the user's location

//

// important: be sure to include NSLocationWhenInUseUsageDescription along with its

// explanation string in your Info.plist or startUpdatingLocation will not work.

//

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

    [self.locationManager requestWhenInUseAuthorization];

}

[self.locationManager startUpdatingLocation];



[self performSelector:@selector(stopUpdatingLocationWithMessage:)

           withObject:@"Timed Out"

           afterDelay:30];

我已检查以确保启用locationServicesEnabled.

我已将NSLoationWhenInUseUsageDescription属性添加到info.plist文件中.我需要添加或启用任何服务吗？

我不能因为上帝的爱而弄清楚我做错了什么.有人可以帮我这个.

解决方法

在iOS8上收到didChangeAuthorizationStatus回调后,你必须调用startUpdatingLocation.

//iOS 8 API change
if([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]){
    [self.locationManager requestWhenInUseAuthorization];
}else{
    [self.locationManager startUpdatingLocation];
}

实现这个委托方法：

-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
    switch (status) {
        case kCLAuthorizationStatusNotDetermined:
        case kCLAuthorizationStatusRestricted:
        case kCLAuthorizationStatusDenied:
        {
            // do some error handling
        }
            break;
        default:{
            [self.locationManager startUpdatingLocation];
        }
            break;
    }
}

ios – 没有调用CLLocation didupdatetolocation

解决方法

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