Question

我正在开发的我的Xcode应用程序需要获取用户iOS设备的经度和纬度。虽然目前我得到的两个值都是0。它不会要求获得该位置的许可，而且我在真实设备上而不是模拟器。

NSLocationAlwaysUsageDescription位于我的info.plist

中

我还在我的.h文件中导入了CoreLocation

@interface LocationViewController : UIViewController <CLLocationManagerDelegate>

在我的.m文件中

@interface LocationViewController () <CLLocationManagerDelegate>

这是我的代码：

@implementation LocationViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    [self getCurrentLocation];
}

-(CLLocationCoordinate2D) getLocation{
    locationManager = [[CLLocationManager alloc] init];
    locationManager.delegate = self;
    locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    locationManager.distanceFilter = kCLDistanceFilterNone;
    [locationManager startUpdatingLocation];
    CLLocation *location = [locationManager location];
    CLLocationCoordinate2D coordinate = [location coordinate];
    return coordinate;
}

- (void)getCurrentLocation{
    CLLocationCoordinate2D coordinate = [self getLocation];
    NSString *latitude = [NSString stringWithFormat:@"%f", coordinate.latitude];
    NSString *longitude = [NSString stringWithFormat:@"%f", coordinate.longitude];
    NSLog(@"Latitude  = %@", latitude);
    NSLog(@"Longitude = %@", longitude);
}

Answer 1

在startUpdatingLocation

之前放下

#ifdef __IPHONE_8_0
if(IS_OS_8_OR_LATER) {
     // Use one or the other, not both. Depending on what you put in info.plist
    [self.locationManager requestWhenInUseAuthorization];
}
#endif
[self.locationManager startUpdatingLocation];

同时在viewDidLoad＆amp;中调用[self getCurrentLocation]; viewDidAppear两者。

它会起作用。

另外，请确保您也在info.plist文件中输入了requestWhenInUseAuthorization。

check this for more info

Answer 2

请参阅此answer。希望，这有帮助。

进行此更改：

-(CLLocationCoordinate2D) getLocation{
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
[locationManager requestWhenInUseAuthorization];
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
locationManager.distanceFilter = kCLDistanceFilterNone;
[locationManager startUpdatingLocation];
CLLocation *location = [locationManager location];
CLLocationCoordinate2D coordinate = [location coordinate];
return coordinate;
}

 -(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
     NSLog(@"Status : %d", status);
}

转到设置＆gt;隐私＆gt;位置＆gt;你的应用＆gt;总是

了解“状态”值如何变化。

当前位置返回0

2 个答案: