Android notification is not showing it's content when app is not running

android java google-cloud-messaging android-notifications

2022-09-01 23:40:14

Here is my interesting problem. Android notification that comes from GCM is not showing title and content (just shows App Name, and when click, open the MainActivity) when app is not running.

But when the app is open, it's showing successfully title and content. What can be the problem? It was running without problem and I didn't change anything.

Manifest:

 <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_PHONE_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
    <uses-permission android:name="com.package.xxx.permission.C2D_MESSAGE" />
    <permission android:name="com.package.xxx.permission.C2D_MESSAGE" android:protectionLevel="signature" />

    <receiver
        android:name="com.google.android.gms.gcm.GcmReceiver"
        android:exported="true"
        android:permission="com.google.android.c2dm.permission.SEND" >
        <intent-filter>
            <action android:name="com.google.android.c2dm.intent.RECEIVE" />
            <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
            <category android:name="com.package.xxx" />
        </intent-filter>
    </receiver>

    <service
        android:name=".Service.GcmService"
        android:exported="false" >
        <intent-filter>
            <action android:name="com.google.android.c2dm.intent.RECEIVE" />
        </intent-filter>
    </service>

GcmService.java:

import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.text.TextUtils;
import android.util.Log;

import com.google.android.gms.gcm.GcmListenerService;
import com.package.xxx.Activity.ReadNormal;
import com.package.xxx.R;


public class GcmService extends GcmListenerService {

    public GcmService() {

    }

    @Override
    public void onMessageReceived(String from, Bundle data) {

        Log.d("GCMService", data.toString());

        String type = data.getString("type", "");

        if(type.equals("news")) {
           showNewsNotification(data);
        }

    }

    private void showNewsNotification(Bundle data) {

        String neId = data.getString("neId");

        if(TextUtils.isEmpty(neId)) {
            return;
        }

        int id = Integer.valueOf(neId);

        NotificationCompat.Builder mBuilder =   new NotificationCompat.Builder(this)
                .setContentTitle(data.getString("neTi"))
                .setContentText("Click to read more.")
                .setSmallIcon(R.drawable.ic_launcher)
                .setAutoCancel(true);

        Intent i = new Intent();
        i.putExtra("neSi", data.getString("neSi"));
        i.putExtra("neUr", data.getString("neUr"));
        i.putExtra("neTi", data.getString("neTi"));
        i.putExtra("neIm", data.getString("neIm"));
        i.putExtra("neId", id);
        i.setClass(this, ReadNormal.class);
        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        /***/
        PendingIntent pi = PendingIntent.getActivity(getApplicationContext(), 0, i, PendingIntent.FLAG_UPDATE_CURRENT);
        mBuilder.setContentIntent(pi);

        NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        mNotificationManager.notify(0, mBuilder.build());

    }

    @Override
    public void onDeletedMessages() {

    }

    @Override
    public void onMessageSent(String msgId) {
    }

    @Override
    public void onSendError(String msgId, String error) {
    }

Thank you.

Logs when app is running.

 D/GCMService: Bundle[{neId=4663755, neIm=http://icdn.posta.com.tr/editor/HD/30/1/2016/fft2mm7549077.jpg, neSi=Posta, neTi=Erdoğan: Rusya sonucuna katlanır, neUr=http://www.posta.com.tr/turkiye/HaberDetay/Erdogan--Rusya-sonucuna-katlanir.htm?ArticleID=324647, type=news, notification=Bundle[{e=1}], collapse_key=com.tekmobil.guncelhaber}]

Logs when app is NOT running.

(empty, there is no log)

答案 1

Found the problem. I was using 8.4.0 version (up-to-date) of play services.

compile 'com.google.android.gms:play-services-gcm:8.4.0' //GCM

I reduced the version to . It works as expected. 8.3.0

答案 2

Instead of

    NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    mNotificationManager.notify(0, mBuilder.build());

try using

NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
notificationManager.notify(0, mBuilder.build());