使用objective-c在ios 9中尝试在不提示位置授权的情况下启动MapKit位置更新

我正在尝试在iOS 8上使用MapKit，但不断出现错误：

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

---

在这里查找时，我发现我必须在plist中的usagedescription中实现nslocation，但什么都没有发生，我仍然在控制台中得到该错误。我做错了什么？

只需在

CLLocationManager

初始化中添加这些代码

例如：

@property（强，非原子）CLLocationManager*locationManager
然后在您的实现中，只需调用
[self.locationManager requestwhenuseauthorization]。
在您的
cllocationmanager
初始化检查ios 8并请求许可后

locationManager = [[CLLocationManager alloc] init];// [[[CLLocationManager alloc] init] autorelease];
    locationManager.delegate = self;
    // Check for iOS 8. Without this guard the code will crash with "unknown selector" on iOS 7.
    if ([locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
        [locationManager requestWhenInUseAuthorization];
    }

参考
1.-将以下行添加到您的info.plist

<key>NSLocationWhenInUseUsageDescription</key>
<string>The spirit of stack overflow is coders helping coders</string>

<key>NSLocationAlwaysUsageDescription</key>
<string>I have learned more on stack overflow than anything else</string>

3.-当用户接受时更新位置

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

        if (status == kCLAuthorizationStatusAuthorizedAlways || status == kCLAuthorizationStatusAuthorizedWhenInUse) {
            [self.locationManager startUpdatingLocation];

    }
}

除了实现PList中的键（我有
nslocationwhenUsageDescription
和
隐私-位置使用说明
），我用以下代码解决了警告：

if ([CLLocationManager locationServicesEnabled])
{
    CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
    if (status == kCLAuthorizationStatusRestricted || status == kCLAuthorizationStatusDenied || status ==  kCLAuthorizationStatusNotDetermined) {
    } else {
        _mapView.showsUserLocation = YES;
    }
}

if ([CLLocationManager locationServicesEnabled])
{
    CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
    if (status == kCLAuthorizationStatusRestricted || status == kCLAuthorizationStatusDenied || status ==  kCLAuthorizationStatusNotDetermined) {
    } else {
        _mapView.showsUserLocation = YES;
    }
}