Sp4Rx

public class TilingDrawable extends android.support.v7.graphics.drawable.DrawableWrapper {

    private boolean callbackEnabled = true;

    public TilingDrawable(Drawable drawable) {
        super(drawable);
    }

    @Override
    public void draw(Canvas canvas) {

Sp4Rx

package com.example.suvajit.servicedemo;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.support.annotation.Nullable;
import android.widget.Toast;

public class BackgroundService extends Service {
    @Nullable

Sp4Rx

package com.example.suvajit.servicedemo;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.support.annotation.Nullable;
import android.widget.Toast;

public class BackgroundService extends Service {
    @Nullable

Sp4Rx

package com.example.suvajit.servicedemopersistant;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.support.annotation.Nullable;
import android.widget.Toast;

public class BackgroundService extends Service {
    @Nullable