如何在iOS 10中处理用户通知操作

Question

如何在iOS 10中处理用户通知操作

iosswiftusernotificationsusernotificationsui

8

所以我可以像这样安排通知；

//iOS 10 Notification
if #available(iOS 10.0, *) {

    var displayDate: String {
        let dateFormatter = DateFormatter()
        dateFormatter.dateStyle = DateFormatter.Style.full
        return dateFormatter.string(from: datePicker.date as Date)
    }
    let notif = UNMutableNotificationContent()


    notif.title = "I am a Reminder"
    notif.subtitle = "\(displayDate)"
    notif.body = "Here's the body of the notification"
    notif.sound = UNNotificationSound.default()
    notif.categoryIdentifier = "reminderNotification"

    let today = NSDate()
    let interval = datePicker.date.timeIntervalSince(today as Date)

    let notifTrigger = UNTimeIntervalNotificationTrigger(timeInterval: interval, repeats: false)

    let request = UNNotificationRequest(identifier: "reminderNotif", content: notif, trigger: notifTrigger)

    UNUserNotificationCenter.current().add(request, withCompletionHandler: { error in
        if error != nil {
            print(error)
           // completion(Success: false)
        } else {
            //completion(Sucess: true)
        }
        })
}

我已经在appDelegate中请求了权限，并使用通知扩展显示了自定义视图的通知。我还为通知类别添加了通知操作，在appDelegate中也可以看到它们。

//Notifications Actions 

private func configureUserNotifications() {
    if #available(iOS 10.0, *) {

        let tomorrowAction = UNNotificationAction(identifier: "tomorrowReminder", title: "Remind Me Tomorrow", options: [])

        let dismissAction = UNNotificationAction(identifier: "dismissReminder", title: "Dismiss", options: [])


        let category = UNNotificationCategory(identifier: "reminderNotification", actions: [tomorrowAction, dismissAction], intentIdentifiers: [], options: [.customDismissAction])

        UNUserNotificationCenter.current().setNotificationCategories([category])

    } else {
        // Fallback on earlier versions
    }
}

在通知扩展的.plist文件中，我设置了相同的类别。当用户点击操作时，我在通知扩展中使用以下内容来更改文本。

 //Handle Notification Actions And Update Notification Window 


 private func didReceive(_ response: UNNotificationResponse, completionHandler done: (UNNotificationContentExtensionResponseOption) -> Void) {

    if response.actionIdentifier == "tomorrowReminder" {
        print("Tomrrow Button Pressed")
        subLabel.text = "Reminder For Tomorrow"
        subLabel.textColor = UIColor.blue
        done(.dismissAndForwardAction)
    }

    if response.actionIdentifier == "dismissReminder" {
        print("Dismiss Button Pressed")
        done(.dismiss)

    } else {
        print("Else response")
        done(.dismissAndForwardAction)
    }

}

然而，文本没有改变，也没有调用任何语句；

在appDelegate中，我有以下内容；

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {
    if #available(iOS 10.0, *) {
        UNUserNotificationCenter.current().delegate = self
        configureUserNotifications()

    }
}

extension AppDelegate: UNUserNotificationCenterDelegate {

@available(iOS 10.0, *)
private func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: (UNNotificationPresentationOptions) -> Void) {
    completionHandler([.alert, .sound])
}

@available(iOS 10.0, *)
private func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: () -> Void) {

    print("Recieved Action For \(response.actionIdentifier)")

    if response.actionIdentifier == "tomorrowReminder" {
        print("Tomorrow Reminder")


        //Set new reminder for tomorrow using the notification content title



        completionHandler()
    }

    if response.actionIdentifier == "dismissReminder" {
        print("Dismiss Reminder...")
        completionHandler()
    }
}

}

这两个函数都没有在appDelegate中被调用。我不确定更新扩展视图的问题是否与应用程序委托有关。我认为不是，我已经按照苹果的WWDC视频以及其他教程和文档API进行了操作，但仍无法解决以下问题：

通知扩展文本标签为什么没有更新？
为什么appDelegate中的函数没有被调用？
如何在应用程序委托中使用通知内容来执行操作？

PS：我花了过去几周的时间进行研究和尝试，看起来非常简单，但我不确定自己漏掉了什么。我知道我不是唯一遇到这些问题的人。

- A.Roe

1个回答

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可以查看英文原文，
原文链接

- OOPer · Accepted Answer

我还没有检查完您的所有代码，但至少以下这些函数头需要进行更改：

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

func userNotificationCenter(_ center: UNUserNotificationCenter,
                            didReceive response: UNNotificationResponse,
                            withCompletionHandler completionHandler: @escaping () -> Void) {

func didReceive(_ response: UNNotificationResponse,
                completionHandler done: @escaping (UNNotificationContentExtensionResponseOption) -> Void) {

简单的规则： 移除private，添加@escaping。

您可能会从Xcode中收到错误建议，但是如果将它们设置为private，则不会生成Objective-C入口点。iOS运行时在内部使用Objective-C选择器，因此无法找到您的方法，因此它们不会被执行。