ios - 点击通知后如何显示某个 View Controller 并发送数据？

Question

我试图在这里阅读类似的帖子 How to make your push notification Open a certain view controller?但信息不完整。

我正在尝试实现推送通知(firebase 云消息传递)。收到通知警报后，我希望如果用户点击该通知，它会将用户发送到某个 View Controller 并打开已从服务器发送的数据。

1. how to access the data/information from the server that has been sent through push notification?
2. send that data/information to a certain view controller?

这是我在 app delegate 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检测用户 tap (响应)，双击后它会显示一个特定的 viewController正如您指定的那样。

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;  
    }

访问data/information从已通过 push notification 发送的服务器-

通知数据在 application:didReceiveRemoteNotification: 中传送到您的应用程序.如果要在applicationDidBecomeActive:中处理您应该将其存储在 application:didReceiveRemoteNotification: 中并在 applicationDidBecomeActive. 中再次阅读