Question

卸载iOS10应用后，位置服务停止工作。我在Info.plist中设置了描述，因此让我感到困惑的是为什么位置服务会停止工作。该应用未显示在“设置” - >“隐私” - >“位置服务”

中

<key>NSLocationAlwaysUsageDescription</key>
<string>This app needs to use your location so that it may send it to your selected contacts.</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>This app needs to use your location so that it may send it to your selected contacts.</string>

使用以下代码检查状态显示状态为未确定。

if ([CLLocationManager locationServicesEnabled]) {
    if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusRestricted) {
        NSLog(@"RESTRICTED");
    } else if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied) {
        NSLog(@"DENIED");
    } else if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined) {
        NSLog(@"NOT DETERMINED");
    } else if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedAlways) {
        NSLog(@"ALWAYS");
    } else if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedWhenInUse) {
        NSLog(@"WHEN IN USE");
    }
}

修改 viewController viewDidLoad方法包含以下代码：

- (void)viewDidLoad {
    [self.locationManager requestAlwaysAuthorization];
    [self.locationManager requestWhenInUseAuthorization];
    self.locationManager = [[CLLocationManager alloc] init];
    self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    self.locationManager.delegate = self;

    if ([CLLocationManager locationServicesEnabled]) {
        if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusRestricted) {
            NSLog(@"RESTRICTED");
        } else if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied) {
            NSLog(@"DENIED");
        } else if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined) {
            NSLog(@"NOT DETERMINED");
        } else if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedAlways) {
            NSLog(@"ALWAYS");
        } else if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedWhenInUse) {
            NSLog(@"WHEN IN USE");
        }
    }
}

Answer 1

您需要使用[yourLocationManager startUpdatingLocation]，这会提示使用位置的提醒。

在此之前authorizationStatus将为kCLAuthorizationStatusNotDetermined

修改

self.locationManager = [[CLLocationManager alloc] init]; self.locationManager.desiredAccuracy = kCLLocationAccuracyBest; [self.locationManager requestAlwaysAuthorization]; self.locationManager.delegate = self;

添加此

Answer 2

您需要检查授权状态，如果是xxx，则需要致电requestAlwaysAuthorization()或requestWhenInUseAuthorization()。这将触发对用户的警报。

如果您通过长按应用程序图标并点击X来删除应用程序，则会撤消用户使用位置服务的权限，因此在您致电{{{}之前，该应用将被拒绝访问再次1}}或requestAlwaysAuthorization()。

位置服务使用iOS10重新安装后停止工作

2 个答案: