使用UNUserNotificationCenter支持iOS 10丰富通知，但通知从未显示。这只是发出警报而已

不确定，遗漏了什么，但我遇到了一个奇怪的问题

通知会发出声音，但不会显示

我已经注册了这个应用程序，只显示警报和声音，奇怪的是它从来没有显示过。我可以看到通知已成功添加。但是，似乎有一些琐碎的事情我无法理解

甚至删除通知也能起作用

import Foundation
import NotificationCenter
import UserNotifications

class NotificationManager: NSObject {

    private let categoryIdentifier = "notificationCategory"

    private var toDateComponents = NSDateComponents()

    private enum actionIdentifier : String {
        case openApp = "openApp"
        case playMusic = "playMusic"
    }

    // MARK: - Register for notifications

    func registerForNotifications(application: UIApplication) {
        if #available(iOS 10.0, *) {
            UNUserNotificationCenter.currentNotificationCenter().getNotificationSettingsWithCompletionHandler { notificationSettings in
                switch notificationSettings.authorizationStatus {
                case .NotDetermined:
                    UNUserNotificationCenter.currentNotificationCenter().requestAuthorizationWithOptions([.Alert, .Sound]) { (granted, error) in
                        // Enable or disable features based on authorization
                        if granted {
                            print("Access requested and was granted for sending notifications")
                            UNUserNotificationCenter.currentNotificationCenter().setNotificationCategories([])
                            UNUserNotificationCenter.currentNotificationCenter().delegate = self
                            self.setupNotificationActions()
                        } else {
                            print("Access requested and was denied for sending notifications")
                            print(error?.localizedDescription)
                        }
                    }
                case .Denied:
                    print("Notifications are turned off!!")
                break // nothing to do, pointless to go on
                case .Authorized:
                    self.setupNotificationActions()
                }
            }
        } else {
            // Nothing to do here
            print("iOS 9 says, Let's get started...")
            self.setupNotificationActions()
        }
    }

    // MARK: - Setup notification actions

    private func setupNotificationActions() {

        // Initialize and specify the notification actions
        if #available(iOS 10.0, *) {
            let openAppAction = UNNotificationAction(identifier: actionIdentifier.openApp.rawValue, title: "Open App", options: [.AuthenticationRequired, .Foreground])
            let playMusicAction = UNNotificationAction(identifier: actionIdentifier.playMusic.rawValue, title: "Play Music", options: [])
            let notificationCategory = UNNotificationCategory(identifier: categoryIdentifier, actions: [openAppAction, playMusicAction], intentIdentifiers: [], options: [.CustomDismissAction])

            UNUserNotificationCenter.currentNotificationCenter().setNotificationCategories([notificationCategory])
        } else {
            // Specify the notification actions
            let openAppAction = UIMutableUserNotificationAction()
            openAppAction.identifier = actionIdentifier.openApp.rawValue
            openAppAction.title = "Open App"
            openAppAction.activationMode = UIUserNotificationActivationMode.Foreground
            openAppAction.destructive = false

            let playMusicAction = UIMutableUserNotificationAction()
            playMusicAction.identifier = actionIdentifier.playMusic.rawValue
            playMusicAction.title = "Play Music"
            playMusicAction.activationMode = UIUserNotificationActivationMode.Background
            playMusicAction.destructive = false
            playMusicAction.authenticationRequired = false

            // Specify the category related to the above actions
            let notificationCategory = UIMutableUserNotificationCategory()
            notificationCategory.identifier = categoryIdentifier
            notificationCategory.setActions([openAppAction, playMusicAction], forContext: UIUserNotificationActionContext.Default)
            notificationCategory.setActions([playMusicAction], forContext: UIUserNotificationActionContext.Minimal)

            let notificationSettings = UIUserNotificationSettings(forTypes: [.Alert, .Sound], categories: NSSet(object: notificationCategory) as? Set<UIUserNotificationCategory>)
//            if (notificationSettings.types != UIUserNotificationType.None){
                UIApplication.sharedApplication().registerUserNotificationSettings(notificationSettings)
//            }
        }
    }

---

应正确分配代理。虽然，我无法解释为什么会发生这种情况，但下面的更改确保了通知的通过

副代表

class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {

    private let notificationManager = NotificationManager()

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

    UNUserNotificationCenter.currentNotificationCenter().delegate = self
    notificationManager.registerForNotifications()

    }
}

---

在AppDelegate本身中插入委托方法。

无论何时发送丰富的通知，请确保有效负载必须包含“可变内容”：1

像

{
  "aps": {
    "alert": "Test Rich Notification",
    "mutable-content": 1,
    "badge": "1"
  },
  "mediaUrl": "https://www.awaragroup.com/wp-content/uploads/2015/05/it-specialist.jpg",
  "mediaType": "jpg"
}

---

当您测试通知时，您的应用程序是否在前台？否。不是。请尝试这样做：清除所有现有的已传递通知，然后显示新通知。@prabodhprakash它是一样的！！：（@matt，我在查，让我看看。

{
  "aps": {
    "alert": "Test Rich Notification",
    "mutable-content": 1,
    "badge": "1"
  },
  "mediaUrl": "https://www.awaragroup.com/wp-content/uploads/2015/05/it-specialist.jpg",
  "mediaType": "jpg"
}