如何在 Firebase 通知上添加 URL？使用键值对？

Question

我想向用户发送推送通知，要求他们更新应用程序，当他们点击它时，我希望他们转到应用程序商店/Playstore。

如何在 Firebase 通知上添加 URL？使用键值对？

有人可以帮忙吗？

Answer 1

您可以将 URL 包含在通知的数据负载中。当用户点击通知时，通知单击事件会将其重定向到指定的 URL。例如，您的 JSON 负载可能如下所示：

{
  "to": "<FCM_TOKEN>",
  "notification": {
    "title": "Update Available",
    "body": "A new version of the app is available. Please update now."
  },
  "data": {
    "url": "https://play.google.com/store/apps/details?id=com.yourapp"
  }
}

在您的应用程序中，您需要处理通知单击事件并将用户重定向到 URL。根据您的应用程序是适用于 Android 还是 iOS，这可以采用不同的方式完成，但您说过您想同时为两者执行此操作。

因此，对于 Android，您需要创建一个扩展

FirebaseMessagingService

的服务并重写

onMessageReceived

方法。在此方法中，检查消息是否包含数据，提取 URL，然后使用

Intent

处理 URL。

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);

        // check if the message contains data
        if (remoteMessage.getData().size() > 0) {
            Map<String, String> data = remoteMessage.getData();
            String url = data.get("url");

            sendNotification(remoteMessage.getNotification().getTitle(), remoteMessage.getNotification().getBody(), url);
        }
    }

    private void sendNotification(String title, String messageBody, String url) {
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);

        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, "default")
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle(title)
                .setContentText(messageBody)
                .setAutoCancel(true)
                .setContentIntent(pendingIntent);

        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(0, notificationBuilder.build());
    }
}

在您的

AndroidManifest.xml

:

中注册此服务

<service
    android:name=".MyFirebaseMessagingService"
    android:exported="false">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT"/>
    </intent-filter>
</service>

对于 iOS，您需要修改

AppDelegate.swift

来处理通知。确保应用程序配置为处理通知并在收到通知时打开 URL。

import UserNotifications
import Firebase

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        FirebaseApp.configure()
        UNUserNotificationCenter.current().delegate = self
        return true
    }

    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
        if let url = userInfo["url"] as? String {
            if let url = URL(string: url) {
                UIApplication.shared.open(url, options: [:], completionHandler: nil)
            }
        }
        completionHandler(UIBackgroundFetchResult.newData)
    }
}

@available(iOS 10, *)
extension AppDelegate : UNUserNotificationCenterDelegate {

    func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
        completionHandler([.alert, .sound, .badge])
    }

    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
        let userInfo = response.notification.request.content.userInfo
        if let url = userInfo["url"] as? String {
            if let url = URL(string: url) {
                UIApplication.shared.open(url, options: [:], completionHandler: nil)
            }
        }
        completionHandler()
    }
}