Internet Speed Monitoring Service

package com.saud_khan_dev.speed_test.backend.services;

import android.app.IntentService;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.drawable.Icon;
import android.net.TrafficStats;
import android.os.Build;
import android.os.Handler;
import