Swift 3-本地通知'；s DIDreceiveemotentification函数未激发

我已成功安排了一个通知，并在应用程序在前台运行/未运行时向用户显示该通知。现在我需要在点击此通知时显示一个

ViewController

func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {

    //Handle notification
}

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    // pull out the buried userInfo dictionary
    let userInfo = response.notification.request.content.userInfo

    if let customData = userInfo["customData"] as? String {
        print("Custom data received: \(customData)")

        switch response.actionIdentifier {
        case UNNotificationDefaultActionIdentifier:
            // the user swiped to unlock
            print("Default identifier")

        case "show":
            // the user tapped our "show more info…" button
            print("Show more information…")
            break

        default:
            break
        }
    }

    // you must call the completion handler when you're done
    completionHandler()
}

我知道，

didReceiveMemotentification

是用户点击通知时调用的函数。在我的例子中，这个函数永远不会被激发。

AppDelegate:

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

    let center = UNUserNotificationCenter.current()
    center.requestAuthorization(options: [.alert, .sound]) { (granted, error) in
            // Enable or disable features based on authorization.
        }

        return true
}

//didReceiveRemoteNotification goes here

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any]) {
        if ( application.applicationState == UIApplicationState.active)
        {
            print("Active")
            // App is foreground and notification is recieved,
            // Show a alert.
        }
        else if( application.applicationState == UIApplicationState.background)
        {
            print("Background")
            // App is in background and notification is received,
            // You can fetch required data here don't do anything with UI.
        }
        else if( application.applicationState == UIApplicationState.inactive)
        {
            print("Inactive")
            // App came in foreground by used clicking on notification,
            // Use userinfo for redirecting to specific view controller.
        }
}

DidReceiveMotonification功能：

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

    let center = UNUserNotificationCenter.current()
    center.requestAuthorization(options: [.alert, .sound]) { (granted, error) in
            // Enable or disable features based on authorization.
        }

        return true
}

//didReceiveRemoteNotification goes here

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any]) {
        if ( application.applicationState == UIApplicationState.active)
        {
            print("Active")
            // App is foreground and notification is recieved,
            // Show a alert.
        }
        else if( application.applicationState == UIApplicationState.background)
        {
            print("Background")
            // App is in background and notification is received,
            // You can fetch required data here don't do anything with UI.
        }
        else if( application.applicationState == UIApplicationState.inactive)
        {
            print("Inactive")
            // App came in foreground by used clicking on notification,
            // Use userinfo for redirecting to specific view controller.
        }
}

这是my

AppDelegate

中与通知相关的全部代码。我遗漏了什么吗？

对于您需要使用的框架，请使用

AppDelegate

实现

UnuseNotificationCenterDelegate

，并在

didFinishLaunchingWithOptions

方法中设置委托

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

    let center = UNUserNotificationCenter.current()
    center.delegate = self
    center.requestAuthorization(options: [.alert, .sound]) { (granted, error) in
        // Enable or disable features based on authorization.
    }

    return true
}

现在您需要实现和方法来获取通知

func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {

    //Handle notification
}

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    // pull out the buried userInfo dictionary
    let userInfo = response.notification.request.content.userInfo

    if let customData = userInfo["customData"] as? String {
        print("Custom data received: \(customData)")

        switch response.actionIdentifier {
        case UNNotificationDefaultActionIdentifier:
            // the user swiped to unlock
            print("Default identifier")

        case "show":
            // the user tapped our "show more info…" button
            print("Show more information…")
            break

        default:
            break
        }
    }

    // you must call the completion handler when you're done
    completionHandler()
}

---

您还可以查看此AppCoda教程以了解更多详细信息。

哈哈，感谢您为我在过去几天提出的所有iOS问题提供答案。非常新，所以我有很多问题；）是的，你的答案是有效的，但是当收到通知时就会被触发。我需要实现什么函数来捕获“tap”事件？@RickGrimesLikesWalkerSoup为此实现了

UnuseNotificationCenterDelegate

的此方法。它起作用了。如果不太麻烦的话，我可以问最后一个小问题吗。我如何识别被点击的通知？如中所示，通过其标识符识别通知，然后打开不同的视图控制器？@RickGrimesLikesWalkerSoup您可以使用

response.actionIdentifier

获得该通知。您可以将我链接到一个示例吗？