在應用程序開始時檢索Firebase通知

Question

我知道，當應用程序被殺時，它不能顯示任何Firebase通知...或者這是我的新應用程序會發生的情況：我殺了應用程序，新通知不會出現。

現在，我想以新的方式擺脫這個問題：我想檢索，當我的應用程序啓動時，應用程序「忘記」看到的所有通知。

這裏是我的代碼

IdService

public class FirebaseIDService extends FirebaseInstanceIdService { 
    private static final String TAG = "FirebaseIDService"; 

    @Override 
    public void onTokenRefresh() { 
     // Get updated InstanceID token. 
     String refreshedToken = FirebaseInstanceId.getInstance().getToken(); 
     Log.d(TAG, "Refreshed token: " + refreshedToken); 

     // TODO: Implement this method to send any registration to your app's servers. 
     sendRegistrationToServer(refreshedToken); 
    } 

    /** 
    * Persist token to third-party servers. 
    * 
    * Modify this method to associate the user's FCM InstanceID token with any server-side account 
    * maintained by your application. 
    * 
    * @param token The new token. 
    */ 
    private void sendRegistrationToServer(String token) { 
     // Add custom implementation, as needed. 
    } 
} 

和消息類

public class MyFirebaseMessagingService extends FirebaseMessagingService { 
    private static final String TAG = "FCM Service"; 
    @Override 
    public void onMessageReceived(RemoteMessage remoteMessage) { 
     // TODO: Handle FCM messages here. 
     // If the application is in the foreground handle both data and notification messages here. 
     // Also if you intend on generating your own notifications as a result of a received FCM 
     // message, here is where that should be initiated. 
     Log.d(TAG, "From: " + remoteMessage.getFrom()); 
     Log.d(TAG, "Notification Message Body: " + remoteMessage.getNotification().getBody()); 
     notifies(remoteMessage.getNotification().getBody()); 
    } 

    private void notifies(String body){ 
     NotificationCompat.Builder mBuilder = 
       new NotificationCompat.Builder(MyFirebaseMessagingService.this) 
         .setSmallIcon(android.R.drawable.ic_menu_help) 
         .setContentTitle("Congratulations!") 
         .setContentText(body); 
     Notification mNot= mBuilder.build(); 
// Display 
     NotificationManager mNotMan = (NotificationManager) 
       getSystemService(Context.NOTIFICATION_SERVICE); 
     mNotMan.notify(1,mNot); 
    } 

} 

你可以建議我什麼？感謝所有的答案：D

Answer 1

恕我直言，最好的辦法是創建一個通知中心服務器端。

因此，每當您發送推送通知時將其保存在服務器上。 當你的應用程序啓動時，遠程推送通知列表。