[英]CLLocationManager - Authorization prompt goes away?
我嘗試為使用CLLocation的處理方法建立一個locationHelper類,這樣我就不必在每個視圖控制器中都重寫它們。 我的LocationHelper類有一個方法checkStatus()來檢查用戶是否已授予使用其位置的身份驗證。 但是,如果我調用該方法,而用戶尚未授予該權限,則提示會出現,但是會在提示后2秒鍾消失。 我認為問題出在類的實現上,因為如果我在ViewController中編寫代碼,則提示將一直保留到用戶做出決定為止。 我的LocationHelper.swift:
import Foundation
import CoreLocation
class LocationHelper: NSObject, CLLocationManagerDelegate{
var locationManager: CLLocationManager!
var delegate: CLLocationManagerDelegate!
override init(){
super.init()
self.locationManager = CLLocationManager()
locationManager.delegate = self
}
func requestPermission() -> Void {
self.locationManager?.requestWhenInUseAuthorization()
}
//func getLocationInstance() -> CLLocationManager {
// return self.locationManager?
//}
func checkStatus() -> Void {
switch CLLocationManager.authorizationStatus() {
case .notDetermined:
// Request when-in-use authorization initially
print("not determined")
locationManager?.requestWhenInUseAuthorization()
case .restricted, .denied:
// Disable location features
print("status: fail")
case .authorizedWhenInUse:
// Enable basic location features
print("in use")
case .authorizedAlways:
print("always")
}
}
}
我的ViewController:
import UIKit
class LiveDataViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.view.backgroundColor = UIColor(red: 0.12, green: 0.67, blue: 0.478, alpha: 1)
let locHelp = LocationHelper()
locHelp.checkStatus()
//locHelp LocationHelper = LocationHelper()
//locHelp.requestPermission()
}
如果有人可以幫助我,我會很高興。
嘗試保存對定位助手的引用。
視圖加載后,它可能會自動釋放。
像這樣:
import UIKit
class LiveDataViewController: UIViewController {
let locHelp = LocationHelper()
override func viewDidLoad() {
super.viewDidLoad()
locHelp.checkStatus()
}
}
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