推送通知不工作迅速

Question

因此，当我的应用程序当前未打开并且收到推送通知时，当横幅出现并按下时，“didrecieveremotenotification”完美无缺。但是当应用程序打开时，根本没有横幅出现。我希望推送通知在应用程序打开时工作。

我试过使用UNNotificationCenter，但一般都丢失了推送通知。

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运行

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

时授予许可。

但是，当我不使用UNNotificationCenter并使用旧方法时，它不会失败。

为什么一个方法无法注册远程通知，但另一个不是？

更新2：在模拟器工作大声笑，这就是为什么它失败。但是现在，当我运行 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：我已经跑出去的可能的事情去尝试。什么会阻止代码发射willPresent而不是didReceive。这是残酷的。有没有人曾经有过这个问题？

更新4：已解决。我用于推送通知的服务要求用户与服务断开连接以发送推送通知。当你在后台时它会自动断开你的连接，这就是为什么这个工作正常，并且它不在前台工作。

奇怪的方式为他们配置，我可能会发一封电子邮件。

Answer 1

实施UNUserNotificationCenterDelegate委托方法获取通知（托盘顶部），而应用程序在前台。但它只会与IOS 10一起工作。

在你的didFinishLaunchingWithOptions方法集UNUserNotificationCenterDelegate委托像这样。

UNUserNotificationCenter.current().delegate = self 

实现委托方法...

//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() 
}