Question

这是我的代码：

if (!self.locationManager) {
        self.locationManager = [[CLLocationManager alloc] init];
        self.locationManager.delegate = self;
        self.locationManager.desiredAccuracy =      kCLLocationAccuracyNearestTenMeters;
    }


if([CLLocationManager locationServicesEnabled]){
        [self findCurrentLocation];
        }

-(void)findCurrentLocation {
    if ([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) {

        [self.locationManager performSelector:@selector(requestAlwaysAuthorization)];
    }

    [self.locationManager startUpdatingLocation];
}

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
    self.isLocationEnabled=YES;
    self.currentLocation = newLocation;

    if (currentLocation!= nil) {

        latitudeValue = [NSString stringWithFormat:@"%.8f",currentLocation.coordinate.latitude];
        longitudeValue = [NSString stringWithFormat:@"%.8f",currentLocation.coordinate.longitude];

    }
    [self.locationManager stopUpdatingLocation];
}



- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
    if([error code] == kCLErrorDenied)
    {
        [locationManager stopUpdatingLocation];
    }
    self.isLocationEnabled=NO;
}

我没有收到任何错误，但是didUpdateToLocation从未被调用，它将进入didFailWithError（）

我获得纬度和经度的空值。请让我知道如何获得价值。

Answer 1

来自iOS8及以上版本的

：

向Info.plist添加密钥，并请求位置管理员授权启动。

NSLocationWhenInUseUsageDescription

NSLocationAlwaysUsageDescription

您需要请求相应位置方法的授权。

[self.locationManager requestWhenInUseAuthorization]
[self.locationManager requestAlwaysAuthorization]

请阅读此文档：http://nevan.net/2014/09/core-location-manager-changes-in-ios-8/

代码不进入DidupdateLocation（）方法，iOS，目标-c，进入didfailwithError（）

1 个答案: