ios - 如何在后台快速跟踪用户位置

Question

我正在尝试在后台跟踪用户位置，我尝试在使用时使用和不使用时，但每次我最小化应用程序时，位置图标都会消失，我在教程中阅读过它应该显示蓝条，但我没有得到那个酒吧我还检查了更新位置的后台模式

  map.showsUserLocation = true
    locationManager.delegate = self
    locationManager.desiredAccuracy = kCLLocationAccuracyBest
    locationManager.requestWhenInUseAuthorization()
    locationManager.requestAlwaysAuthorization()
    locationManager.startUpdatingLocation()
    // Do any additional setup after loading the view, typically from a nib.
    alwaysAuthorization()
}

func alwaysAuthorization(){
    if CLLocationManager.locationServicesEnabled() && CLLocationManager.authorizationStatus() == .authorizedWhenInUse {
        locationManager.requestAlwaysAuthorization()
    }
}


func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    let location = locations.last
    let region  = MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude), span: MKCoordinateSpan (latitudeDelta: 0.2, longitudeDelta: 0.2))
    self.map.region = region
    print("location \(location!.coordinate.latitude) and \(location!.coordinate.longitude)")
}

标签： iosswiftgoogle-mapsbackgrounduserlocation

Answer 1

这就是我要找的

        locationManager.allowsBackgroundLocationUpdates = true