如何在應用中呈現apns令牌？在SWIFT 4

如何的appdelegate使用函數從視圖控制器？在迅速4.如何在應用中呈現apns令牌？在SWIFT 4

let viewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "ViewController") as! ViewController 

viewController.setapnsText(token: deviceTokenString) 
public func setapnsText(token: String) -> Void { 
      apnsToken.text=token 
}

我試過了，它不起作用。

來源

2017-08-02 Itay Geffen

可以澄清你想達到的結果嗎？ –

不要轉發問題。我將你的[上一個問題]（https://stackoverflow.com/questions/45459888/how-to-present-apns-token-in-view-controller）標記爲重複。在鏈接的問題有很多的方式來獲得設備令牌作爲字符串，這個作品甚至可能在斯威夫特4.除此之外，目前還不清楚你要完成的任務。 – vadian

您可以將訪問令牌存儲在用戶默認值中。 – Jaydeep

只能收到的設備標識上的每個發射如果當用戶/授予您的應用程序權限推送通知。此外，這通常可以在AppDelegate中輕鬆捕獲。（推薦更多的，因爲你可以，如果你啓用了您的應用程序利用本地加密）

所以這裏我舉的例子，我保存到兩個UserDefaults（較少推薦），核心數據。

您請求授權，像這樣，對於應用其目的是要在iOS上10 +工作並請求推送通知在發射..：

class AppDelegate: UIResponder, UIApplicationDelegate { 


    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 

     notificationHandler(application) 
     return true 

    } 


    func notificationHandler(_ application: UIApplication) { 
     if #available(iOS 10.0, *) { 
      let center = UNUserNotificationCenter.current() 
      center.getNotificationSettings(){ (settings) in 
       switch settings.authorizationStatus { 
       case .authorized: 
        print("Authorized Push Notifications by User") 
        self.registerPushNotifications() 
       case .denied: 
        print("show user a view explaining why it's better to enable") 
        self.registerPushNotifications() 
       case .notDetermined: 
        self.requestPushNotifications(center: center, { (granted) in 
         if granted { 
          self.registerPushNotifications() 
          return 
         } 
         print("User did not grant Remote Notifications Authorizations") 
        }) 
       } 
      } 
     } else { 
      print("App does not meet minimum OS Requirements") 
      return 
     } 
    } 

    fileprivate func requestPushNotifications(center: UNUserNotificationCenter,_ result: @escaping(Bool)->Void) { 
     center.requestAuthorization(options:[.badge, .alert, .sound]) { (granted, error) in 
      if error != nil { 
       print("Could not request Authorization for Notifications - Yet is undetermined") 
      } else { 
       result(granted) 
      } 
     } 
    } 

    func registerPushNotifications() { 
      if #available(iOS 10.0, *) { 

       UIApplication.shared.registerForRemoteNotifications() 

      } else { 
       print("App does not meet base OS requirements") 
      } 
    } 

    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) { 
      let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)}) 
      UserDefaults.standard.set(deviceTokenString, forKey: "devicetoken") 
      coreDataManager.saveDeviceToken(deviceTokenString) 
     } 

}

最後，如果你只想在這個請求在您的應用程序的其他時刻，你可以擴展NSObject，因爲它是既AppDelegate和UIViewController的超類（也就是根類的所有控制器型類的反正。

class AppDelegate: UIResponder, UIApplicationDelegate { 


    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 

     notificationHandler(application) 
     return true 

    } 

    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) { 
      let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)}) 
      UserDefaults.standard.set(deviceTokenString, forKey: "devicetoken") 
      coreDataManager.saveDeviceToken(deviceTokenString) 
     } 

} 

extension NSObject { 

    func notificationHandler(_ application: UIApplication) { 
     if #available(iOS 10.0, *) { 
      let center = UNUserNotificationCenter.current() 
      center.getNotificationSettings(){ (settings) in 
       switch settings.authorizationStatus { 
       case .authorized: 
        print("Authorized Push Notifications by User") 
        self.registerPushNotifications() 
       case .denied: 
        print("show user a view explaining why it's better to enable") 
        self.registerPushNotifications() 
       case .notDetermined: 
        self.requestPushNotifications(center: center, { (granted) in 
         if granted { 
          self.registerPushNotifications() 
          return 
         } 
         print("User did not grant Remote Notifications Authorizations") 
        }) 
       } 
      } 
     } else { 
      print("App does not meet minimum OS Requirements") 
      return 
     } 
    } 

    fileprivate func requestPushNotifications(center: UNUserNotificationCenter,_ result: @escaping(Bool)->Void) { 
     center.requestAuthorization(options:[.badge, .alert, .sound]) { (granted, error) in 
      if error != nil { 
       print("Could not request Authorization for Notifications - Yet is undetermined") 
      } else { 
       result(granted) 
      } 
     } 
    } 

    func registerPushNotifications() { 
     if #available(iOS 10.0, *) { 

      UIApplication.shared.registerForRemoteNotifications() 

     } else { 
      print("App does not meet base OS requirements") 
     } 
    } 

}

然後，您可以撥打這裏面一個按鈕的鏈接的方法如下：

class SomeController : UIViewController { 

    override viewDidLoad() { 
     super.viewDidLoad() 
    } 

    func requestNotificationsAuthorization() { 
     notificationHandler(UIApplication.current) 
    } 

}

來源

2017-08-02 15:34:55 murphguy

如何在應用中呈現apns令牌？在SWIFT 4

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