我当时在开发一款升级到iOS 8的应用，位置服务停止了。你可能会在Debug区域得到一个错误，如下所示:

试图启动MapKit位置更新而没有提示位置授权。必须先调用-[CLLocationManager requestWhenInUseAuthorization]或-[CLLocationManager requestAlwaysAuthorization]。

我做了侵入性最小的手术。首先添加NSLocationAlwaysUsageDescription条目到你的info.plist:

注意，我没有填写这个键的值。这仍然有效，我并不担心，因为这是一个内部应用程序。此外，已经有一个标题要求使用位置服务，所以我不想做任何多余的事情。

接下来我为iOS 8创建了一个条件:

if ([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) {
    [_locationManager requestAlwaysAuthorization];
}

之后locationManager:didChangeAuthorizationStatus:方法为call:

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

现在一切正常。和往常一样，请查看文档。

保持可可钥匙信息总是在你的指尖为这些更新，这里是链接:

https://developer.apple.com/library/ios/documentation/General/Reference/InfoPlistKeyReference/Articles/CocoaKeys.html#//apple_ref/doc/uid/TP40009251-SW26

享受。

objective - c程序 遵循以下指示:

对于iOS-11 对于iOS 11，看看这个答案:iOS 11位置访问

需要在plist中添加两个键并提供如下图所示的消息:

 1. NSLocationAlwaysAndWhenInUseUsageDescription 
 2. NSLocationWhenInUseUsageDescription
 3. NSLocationAlwaysUsageDescription

对于iOS-10及以下版本:

NSLocationWhenInUseUsageDescription

locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyThreeKilometers;
if([locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]){
    [locationManager requestWhenInUseAuthorization];
}else{
    [locationManager startUpdatingLocation];
} 

委托方法

#pragma mark - Lolcation Update 
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
    NSLog(@"didFailWithError: %@", error);
    UIAlertView *errorAlert = [[UIAlertView alloc]
                               initWithTitle:@"Error" message:@"Failed to Get Your Location" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
    [errorAlert show];
}
-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
    switch (status) {
        case kCLAuthorizationStatusNotDetermined:
        case kCLAuthorizationStatusRestricted:
        case kCLAuthorizationStatusDenied:
        {
            // do some error handling
        }
            break;
        default:{
            [locationManager startUpdatingLocation];
        }
            break;
    }
}
- (void)locationManager:(CLLocationManager *)manager
     didUpdateLocations:(NSArray *)locations
{
    CLLocation *location = [locations lastObject];
    userLatitude =  [NSString stringWithFormat:@"%f", location.coordinate.latitude] ;
    userLongitude =  [NSString stringWithFormat:@"%f",location.coordinate.longitude];
    [locationManager stopUpdatingLocation];
}

迅速的过程

遵循以下指示:

对于iOS-11 对于iOS 11，看看这个答案:iOS 11位置访问

需要在plist中添加两个键并提供如下图所示的消息:

 1. NSLocationAlwaysAndWhenInUseUsageDescription 
 2. NSLocationWhenInUseUsageDescription
 3. NSLocationAlwaysUsageDescription

对于iOS-10及以下版本:

import CoreLocation
class ViewController: UIViewController ,CLLocationManagerDelegate {
var locationManager = CLLocationManager()

//MARK- Update Location 
func updateMyLocation(){
    locationManager.delegate = self;
    locationManager.desiredAccuracy = kCLLocationAccuracyThreeKilometers;
    if locationManager.respondsToSelector(#selector(CLLocationManager.requestWhenInUseAuthorization)){
       locationManager.requestWhenInUseAuthorization()
    }
    else{
        locationManager.startUpdatingLocation()
    }
}

委托方法

//MARK: Location Update
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
    NSLog("Error to update location :%@",error)
}
func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
    switch status {
    case .NotDetermined: break
    case .Restricted: break
    case .Denied:
            NSLog("do some error handling")
        break
    default:
        locationManager.startUpdatingLocation()
    }
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
     let location = locations.last! as CLLocation
    var latitude = location.coordinate.latitude
    var longitude = location.coordinate.longitude

}

要在iOS 8中访问用户位置，你必须添加，

NSLocationAlwaysUsageDescription in the Info.plist 

这将询问用户获取其当前位置的权限。

苹果的文件显示:

https://developer.apple.com/documentation/corelocation/requesting_permission_to_use_location_services https://developer.apple.com/documentation/corelocation/cllocationmanager/1620562-requestwheninuseauthorization

As of iOS 8, the presence of a NSLocationWhenInUseUsageDescription or a NSLocationAlwaysUsageDescription key value in your app's Info.plist file is required. It's then also necessary to request permission from the user prior to registering for location updates, either by calling [self.myLocationManager requestWhenInUseAuthorization] or [self.myLocationManager requestAlwaysAuthorization] depending on your need. The string you entered into the Info.plist will then be displayed in the ensuing dialog.

如果用户授予了权限，则业务照常进行。如果他们拒绝权限，则委托不会被告知位置更新。

这是ios 8的问题 将此添加到代码中

if (IS_OS_8_OR_LATER)
{
    [locationmanager requestWhenInUseAuthorization];

    [locationmanager requestAlwaysAuthorization];
}

到info.plist:

 <key>NSLocationUsageDescription</key>
 <string>I need location</string>
 <key>NSLocationAlwaysUsageDescription</key>
 <string>I need location</string>
 <key>NSLocationWhenInUseUsageDescription</key>
 <string>I need location</string>