Как отправить уведомление, когда приложение закрыто в android 10?

Question

Я пишу этот код для отправки уведомления, но не работаю в android 10 !! Я не могу решить эту проблему. Как решить эту проблему?

Этот код работает в android ниже 10. Это работает в android p ie (API 28), но не работает в android 10

Мой класс обслуживания для отправки уведомления ниже кода

public class NotificationService extends Service {
Timer timer;
TimerTask timerTask;
String TAG = "Timers";
int Your_X_SECS = 20;


@Override
public IBinder onBind(Intent arg0) {
    return null;
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    Log.e(TAG, "onStartCommand");
    super.onStartCommand(intent, flags, startId);


    startTimer();

    return START_STICKY;
}


@Override
public void onCreate() {
    Log.e(TAG, "onCreate");


}

@Override
public void onDestroy() {
    Log.e(TAG, "onDestroy");
    //  stoptimertask();
    super.onDestroy();
    //  startTimer();

}

//we are going to use a handler to be able to run in our TimerTask
final Handler handler = new Handler();


public void startTimer() {

    timer = new Timer();


    initializeTimerTask();


    timer.schedule(timerTask, 5000,1000); //
}

public void stoptimertask() {
    //stop the timer, if it's not already null
    if (timer != null) {
        timer.cancel();
        timer = null;
    }
}

public void initializeTimerTask() {
    timerTask = new TimerTask() {
        public void run () {
            handler .post( new Runnable() {
                public void run () {
                    Calendar calendar = Calendar.getInstance();
                    calendar.setTimeInMillis(System.currentTimeMillis());

                    createNotification();
                }
            }) ;
        }
    } ;

}

private void createNotification () {
    NotificationManager mNotificationManager = (NotificationManager) getSystemService( 
NOTIFICATION_SERVICE ) ;
    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(getApplicationContext() , 
"1" ) ;
    mBuilder.setContentTitle( "My Notification" ) ;
    mBuilder.setContentText( "Notification Listener Service Example" ) ;
    mBuilder.setTicker( "Notification Listener Service Example" ) ;
    mBuilder.setSmallIcon(R.drawable. ic_launcher_foreground ) ;
    mBuilder.setAutoCancel( true ) ;




    if (android.os.Build.VERSION. SDK_INT >= android.os.Build.VERSION_CODES. O ) {
        int importance = NotificationManager. IMPORTANCE_HIGH ;
        NotificationChannel notificationChannel = new NotificationChannel( "1" , 
        "NOTIFICATION_CHANNEL_NAME" , importance) ;
        mBuilder.setChannelId( "1" ) ;
        assert mNotificationManager != null;
        mNotificationManager.createNotificationChannel(notificationChannel) ;
    }

    assert mNotificationManager != null;
    mNotificationManager.notify(( int ) System. currentTimeMillis () , mBuilder.build()) ;
}
}

Класс BoradcastReceiver ниже кода

public class Restarter extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
    Log.i("Broadcast Listened", "Service tried to stop");
    Toast.makeText(context, "Service restarted", Toast.LENGTH_SHORT).show();

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        context.startForegroundService(new Intent(context, NotificationService.class));
    } else {
        context.startService(new Intent(context, NotificationService.class));
    }
}

androidmonifest. xml здесь

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

 <application
    android:name=".BaseApplication"
    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"
    tools:ignore="GoogleAppIndexingWarning">
    <activity android:name=".ui.drugplan.activity.EditDrugPlanActivity"
        android:configChanges="uiMode"/>
    <activity android:name=".ui.drugplan.activity.DrugPlanDetailActivity"
        android:configChanges="uiMode"/>
    <activity android:name=".ui.drug.MoreOptionsActivity"
        android:configChanges="uiMode"/>
    <activity android:name=".ui.category.activity.AddCategoryActivity"
        android:configChanges="uiMode"/>
    <activity
        android:name=".ui.drugplan.activity.AddDrugPlanActivity"
        android:configChanges="uiMode" />
    <activity android:name=".ui.drugplan.activity.DrugPlanListActivity"
        android:configChanges="uiMode" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

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

    <service
        android:name=".notification.NotificationService"
        android:label="@string/app_name">
        <intent-filter>
            <action android:name="your.app.domain.NotificationService" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </service>

    <receiver
        android:name=".notification.Restarter"
        android:enabled="true"
        android:exported="true">
        <intent-filter>
            <action android:name="restartservice" />
          </intent-filter>
       </receiver>
    </application>

</manifest>