推送通知不工作迅速

Question

因此，當我的應用程序當前未打開並且收到推送通知時，當橫幅出現並按下時，「didrecieveremotenotification」完美無缺。但是當應用程序打開時，根本沒有橫幅出現。我希望推送通知在應用程序打開時工作。

我試過使用UNNotificationCenter，但一般都丟失了推送通知。

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 
    UNUserNotificationCenter.current().delegate = self 
    UNUserNotificationCenter.current().requestAuthorization(options: [.badge, .sound, .alert], completionHandler: {(granted, error) in 
     if (granted) { 
      UIApplication.shared.registerForRemoteNotifications() 
     } else{ 
      print("Notification permissions not granted") 
     } 
    }) 
} 


//Called when a notification is delivered to a foreground app. 
public func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Swift.Void) { 
    completionHandler([.sound, .alert, .badge]) 
} 

//Called to let your app know which action was selected by the user for a given notification. 
public func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping() -> Swift.Void) { 
    completionHandler() 
} 

更新：UNUserNotificationCenter.current().requestAuthorization運行

func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) 

時授予許可。

但是，當我不使用UNNotificationCenter並使用舊方法時，它不會失敗。

爲什麼一個方法無法註冊遠程通知，但另一個不是？

更新2：在模擬器工作大聲笑，這就是爲什麼它失敗。但是現在，當我運行 UNUserNotificationCenterDelegate 方法只有

public func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive方法的工作，而不是

public func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent

更新3：我已經跑出去的可能的事情去嘗試。什麼會阻止代碼發射willPresent而不是didReceive。這是殘酷的。有沒有人曾經有過這個問題？

更新4：已解決。我用於推送通知的服務要求用戶與服務斷開連接以發送推送通知。當你在後臺時它會自動斷開你的連接，這就是爲什麼這個工作正常，並且它不在前臺工作。

奇怪的方式爲他們配置，我可能會發一封電子郵件。

Answer 1

實施UNUserNotificationCenterDelegate委託方法獲取通知（托盤頂部），而應用程序在前臺。但它只會與IOS 10一起工作。

在你的didFinishLaunchingWithOptions方法集UNUserNotificationCenterDelegate委託像這樣。

UNUserNotificationCenter.current().delegate = self 

實現委託方法...

//Called when a notification is delivered to a foreground app. 
public func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Swift.Void) { 
    completionHandler([.sound, .alert, .badge]) 
} 

//Called to let your app know which action was selected by the user for a given notification. 
public func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping() -> Swift.Void) { 
    completionHandler() 
}