如何在我们点击通知后显示某个视图控制器并发送数据

Question

>我试图在这里阅读类似的线程 如何使您的推送通知打开某个视图控制器？但信息并不完整。

我正在尝试实现推送通知(firebase cloud messaging(。 收到通知警报后，我希望如果用户点击该通知，它将用户发送到某个视图控制器并打开从服务器发送的数据。

1. 如何从通过推送通知发送的服务器访问数据/信息？
2. 将该数据/信息发送到某个视图控制器？

这是我在应用程序委托中的代码

import UIKit
import Firebase
import UserNotifications

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, MessagingDelegate, UNUserNotificationCenterDelegate {
    var window: UIWindow?
    var fcmTokenUser : String?

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

        print(NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).last! as String)

        // To get FCM token that will be sent to APNS via Google FCM
        if #available(iOS 10.0, *) {
            // For iOS 10 display notification (sent via APNS)
            UNUserNotificationCenter.current().delegate = self
            let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
            UNUserNotificationCenter.current().requestAuthorization(
                options: authOptions,
                completionHandler: {_, _ in })
        } else {
            let settings: UIUserNotificationSettings =
                UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
            application.registerUserNotificationSettings(settings)
        }
        application.registerForRemoteNotifications()

        Messaging.messaging().delegate = self
        let token = Messaging.messaging().fcmToken
        fcmTokenUser = token


        return true
    }

    func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String){
         // This callback is fired at each app startup (when the user install the app for the very first time) and whenever a new token is generated due to The app is restored on a new device, The user uninstalls/reinstall the app, The user clears app data.
        // after fcm generated for the very first time,then fcm can also be retrieved in the 'didFinishLaunchingWithOptions' method above (let token = Messaging.messaging().fcmToken)

        fcmTokenUser = fcmToken


    }


    private func application(application: UIApplication,
                     didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
        Messaging.messaging().apnsToken = deviceToken as Data
    }


}

Answer 1

将此

代码添加到您的AppDelegate以检测用户tap(响应(，双击后，它将显示您指定的特定viewController。

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
        //THIS PRINT WILL SHOW YOU THE USER TAP ON NOTIFICATION    
        print("userNotificationCenter --- (response) --- ")
        let sb = UIStoryboard(name: "Main", bundle: nil)
        let otherVC = sb.instantiateViewController(withIdentifier: "yourViewControllerIdentifier") as! yourViewControllerClassName
        window?.rootViewController = otherVC;  
    }

要从通过push notification发送的服务器访问data/information -

通知数据以 application:didReceiveRemoteNotification: 的形式传递到您的应用程序。如果要在applicationDidBecomeActive:中处理它，则应将其存储在application:didReceiveRemoteNotification:中，然后在applicationDidBecomeActive.中再次读取它

Answer 2

委托方法以 在用户点击显示通知后处理通知消息。

 func application(_ application: UIApplication, didReceiveRemoteNotification data: [AnyHashable : Any]) {
    //get required values from data
    completionHandler();
//push to view controller
}

注意：解析后将此字典数据保存在模型中，或在项目级别保存字典对象，以便在项目中的任何位置使用。比之前推送到任何视图控制器声明字典或模态该控制器，您希望以哪种方式查看日期。