import

Question

必须先致电-[CLLocationManager requestWhenInUseAuthorization]或-[CLLocationManager requestAlwaysAuthorization]。实际上我在Didload中调用了这个方法，甚至在info.plist中添加了这个错误。

    - (void)viewDidLoad {
    [super viewDidLoad];
    self.navigationItem.title = @"MapView";

    [MapView setMapType:MKMapTypeStandard];
    [MapView setZoomEnabled:YES];
    [MapView setScrollEnabled:YES];
    [MapView setShowsUserLocation:YES];
    MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
    region.center.latitude = 23.0804 ;
    region.center.longitude = 72.5241;
    region.span.longitudeDelta = 0.01f;
    region.span.latitudeDelta = 0.01f;
    [MapView setRegion:region animated:YES];

    [MapView setDelegate:self];

    CLLocationManager *locationManager = [[CLLocationManager alloc] init];
    locationManager.delegate = self;
    locationManager.distanceFilter = kCLDistanceFilterNone; //whenever we move
    locationManager.desiredAccuracy = kCLLocationAccuracyBest;

    [locationManager requestAlwaysAuthorization];
    [locationManager requestWhenInUseAuthorization];

    [locationManager startUpdatingLocation];

    Display *ann = [[Display alloc] init];
    ann.title = @" Gujarat";
    ann.subtitle = @"High Court";
    ann.coordinate = region.center;
    [MapView addAnnotation:ann];

}
-(MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:
(id <MKAnnotation>)annotation {
    MKPinAnnotationView *pinView = nil;
    if(annotation != MapView.userLocation)
    {
        static NSString *defaultPinID = @"com.invasivecode.pin";
        pinView = (MKPinAnnotationView *)[MapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
        if ( pinView == nil ) pinView = [[MKPinAnnotationView alloc]
                                         initWithAnnotation:annotation reuseIdentifier:defaultPinID];

        pinView.pinColor = MKPinAnnotationColorRed;
        pinView.canShowCallout = YES;
        pinView.animatesDrop = YES;
        pinView.draggable = YES;
    }
    else {
        [MapView.userLocation setTitle:@"I am here"];
    }
    return pinView;
}


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

{

    if (status == kCLAuthorizationStatusAuthorizedWhenInUse)
    {
        [locationManager startUpdatingLocation];
    }
    else if (status == kCLAuthorizationStatusDenied)
    {
        //Alert to show for user if any when status is declined
    }
    else
        NSLog(@"Wrong location status");
}

和Annotation的Display类

<MKAnnotation> {

    CLLocationCoordinate2D coordinate; 
    NSString *title; 
    NSString *subtitle;
}
@property (nonatomic, assign) CLLocationCoordinate2D coordinate; 
@property (nonatomic, copy) NSString *title; 
@property (nonatomic, copy) NSString *subtitle;

此处的代码未显示用户访问其位置的提示，因此我们无法获取所需位置的位置。亲爱的，从昨天开始帮助我。

Answer 1

检查您应用中的以下内容。

1）创建CLLocation Manager的类对象。如果您创建CLLocation管理器的本地对象，则在用户响应对话框之前释放CLLocationManager对象。

2）转到设置＆gt;隐私＆gt;位置服务。并检查您的应用是否列在位置服务列表中。如果是，则点按您的应用程序并进入内部检查开关是否打开。

3）使用

检查是否支持requestAlwaysAuthorization :.

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

4）尝试使用

检查位置管理器的状态

-(void)checkStatus{

CLAuthorizationStatus status = [CLLocationManager authorizationStatus];

if (status==kCLAuthorizationStatusNotDetermined) {
_status.text = @"Not Determined";
}

if (status==kCLAuthorizationStatusDenied) {
_status.text = @"Denied";
}

if (status==kCLAuthorizationStatusRestricted) {
_status.text = @"Restricted";
}

if (status==kCLAuthorizationStatusAuthorizedAlways) {
_status.text = @"Always Allowed";
}

if (status==kCLAuthorizationStatusAuthorizedWhenInUse) {
_status.text = @"When In Use Allowed";
  }

}

有关详细信息，请访问

1）http://www.devfright.com/location-authorization-ios-8/
2）http://nshipster.com/core-location-in-ios-8/

Answer 2

你需要做两件事：

将CLLocationManager *locationManager声明为全局变量。随着范围结束，位置管理器将被释放。因此，一旦范围结束，弹出即可显示授权将隐藏。

[locationManager startUpdatingLocation]。

import

@interface ViewController () <CLLocationManagerDelegate>

{
   CLLocationManager *locationManager;
}

@implementation ViewController
- (void)viewDidLoad {
    [super viewDidLoad]; 

    [MapView setMapType:MKMapTypeStandard];
    [MapView setZoomEnabled:YES];
    [MapView setScrollEnabled:YES];
    [MapView setShowsUserLocation:YES];
    MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
    region.center.latitude = 23.0804 ;
    region.center.longitude = 72.5241;
    region.span.longitudeDelta = 0.01f;
    region.span.latitudeDelta = 0.01f;
    [MapView setRegion:region animated:YES];

    locationManager = [[CLLocationManager alloc] init];
    locationManager.delegate = self;
    locationManager.distanceFilter = kCLDistanceFilterNone; //whenever we move
    locationManager.desiredAccuracy = kCLLocationAccuracyBest;


    if ([locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)])
    {
        [locationManager requestWhenInUseAuthorization];
    }

    Display *ann = [[Display alloc] init];
    ann.title = @" Gujarat";
    ann.subtitle = @"High Court";
    ann.coordinate = region.center;
    [MapView addAnnotation:ann];
}

-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status {
        if (status == kCLAuthorizationStatusAuthorizedWhenInUse)
        {
            [locationManager startUpdatingLocation];
        }
        else if (status == kCLAuthorizationStatusDenied)
        {
        //Alert to show for user if any when status is declined
        }
        else
            NSLog(@"Wrong location status");
}

Answer 3

我在 .plist 屏幕截图中可以看到的是

NSLocationAlwaysUsageDescription or NSLocationWhenInUseUsageDescription key in Info.plist

缺少。这是为了在您的应用首次启动时显示提示。添加这些解决了问题。

Answer 4

实际上有两个info.plist和我正在改变Mapview演示测试plist文件中的值。当我在Info.plist It Worked中添加NSLocationAlwaysUsageDescription或NSLocationWhenInUseUsageDescription键时。

没有获得MapKit中用户的权限

4 个答案:

import

import