NotificationService

Manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.panda.notifications">

    <uses-permission android:name="android.permission.INTERNET" />

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

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

        <meta-data
            android:name="com.google.firebase.messaging.default_notification_icon"
            android:resource="@drawable/ic_panda_notify" />
        <!-- Set color used with incoming notification messages. This is used when no color is set for the incoming
             notification message. See README(https://goo.gl/6BKBk7) for more. -->
        <meta-data
            android:name="com.google.firebase.messaging.default_notification_color"
            android:resource="@color/colorPrimary" />


    </application>

</manifest>

NotificationService.java

 

public class NotificationService extends FirebaseMessagingService {


    private static final String TAG = "FirebaseService";
    private static int count = 0;
    @RequiresApi(api = Build.VERSION_CODES.O)
    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {

        String click_action = remoteMessage.getNotification().getClickAction();

        if (remoteMessage.getNotification() != null) {
            sendNotification(remoteMessage.getNotification().getTitle(),
                    remoteMessage.getNotification().getBody(), remoteMessage.getData(),click_action);
        }
    }
    @RequiresApi(api = Build.VERSION_CODES.O)
    public void sendNotification(String messageTitle, String messageBody, Map<String, String> row, String click_action) {
        String CHANNEL_ID = "panda";
        CharSequence name = "panda";
        Uri NOTIFICATION_SOUND_URI = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + BuildConfig.APPLICATION_ID + "/" + R.raw.voice_notification);
        long[] VIBRATE_PATTERN    = {0, 500};
        int importance = NotificationManager.IMPORTANCE_HIGH;

        Intent resultIntent = new Intent(click_action);
        resultIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
        Bundle bundle = new Bundle();
        resultIntent.putExtras(bundle);
        resultIntent.putExtra("notify","true");
        NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);
        mChannel.setShowBadge(true);

        TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
        stackBuilder.addParentStack(MainActivity.class);
        stackBuilder.addNextIntent(resultIntent);

        PendingIntent pendingIntent = (PendingIntent) PendingIntent.getActivity(getApplicationContext(),0,resultIntent,
                PendingIntent.FLAG_UPDATE_CURRENT);
        Uri alarmSound  =  RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

        Notification notificationBuilder = new Notification.Builder(this)
                .setSmallIcon(R.drawable.ic_panda_notify)
                .setColor(getColor(R.color.colorPrimary))
                .setContentTitle(messageTitle)
                .setContentText(messageBody)
                .setVibrate(VIBRATE_PATTERN)
                .setAutoCancel(true)
                .setStyle(new Notification.BigTextStyle())
                .setContentIntent(pendingIntent).build();
        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(count, notificationBuilder);
        count++;
    }
}