創建CLLocationManager時分配CLLocationManager委托

Question

我該如何進行以下操作而不會出現錯誤？ 行locationManager.delegate = self表示Cannot assign value of type '(APPLocationManager) -> () -> (APPLocationManager)' to type 'CLLocationManagerDelegate?'

let locationManager: CLLocationManager = {
    let locationManager = CLLocationManager()

    locationManager.delegate = self
    locationManager.activityType = CLActivityType.other
    locationManager.allowsBackgroundLocationUpdates = true
    locationManager.pausesLocationUpdatesAutomatically = true
    locationManager.distanceFilter = APPLocationManagerDistanceFilter

    return locationManager
}()

我希望委托是locationManager屬性所屬的類的實例。

Answer 1

在啟動任何服務之前，應將委托對象分配給CLLocationManager對象的委托屬性。 作為-

class ViewController: UIViewController, CLLocationManagerDelegate{
lazy var locationManager: CLLocationManager = {
        let locationManager = CLLocationManager()

        locationManager.delegate = self
        locationManager.activityType = CLActivityType.other
        locationManager.allowsBackgroundLocationUpdates = true
        locationManager.pausesLocationUpdatesAutomatically = true
        locationManager.distanceFilter = APPLocationManagerDistanceFilter

        return locationManager
    }()