How to implement Android JobScheduler

In this android programming source code example, we are going to implement Android JobScheduler.

You can copy and adopt this source code example to your android project without reinventing the wheel.

Below is a step by step source code to implement Android JobScheduler.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"    tools:context=".WorkManagerAndJobSchedule.WorkManagerAndJobScheduleActivity14">

    <Button
        android:id="@+id/schedule"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorAccent"
        android:text="Schedule Job"
        android:textAllCaps="false"
        android:textColor="#ffffff"
        android:textSize="19sp"
        android:layout_marginStart="10dp"
        android:layout_marginEnd="10dp"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity.java

import androidx.appcompat.app.AppCompatActivity;

import android.app.job.JobInfo;
import android.app.job.JobScheduler;
import android.content.ComponentName;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;


public class WorkManagerAndJobScheduleActivity14 extends AppCompatActivity {
    private Button schedule;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_work_manager_and_job_schedule14);
        schedule = (Button) findViewById(R.id.schedule);
        schedule.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startJob();
            }
        });
    }

    private void startJob(){
        ComponentName componentName = new ComponentName(this, JobScheduler14.class);
        JobInfo jobInfo = new JobInfo.Builder(12, componentName)
                .setRequiresCharging(true)
                .build();
        JobScheduler jobScheduler = (JobScheduler)getSystemService(JOB_SCHEDULER_SERVICE);
        int resultCode = jobScheduler.schedule(jobInfo);
        if(resultCode == JobScheduler.RESULT_SUCCESS){
            Toast.makeText(WorkManagerAndJobScheduleActivity14.this, "Job Schedule",Toast.LENGTH_LONG).show();
        }else{
            Toast.makeText(WorkManagerAndJobScheduleActivity14.this, "Job Not Schedule",Toast.LENGTH_LONG).show();
        }

    }
}

JobScheduler14.java

import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.job.JobParameters;
import android.app.job.JobService;
import android.content.Context;
import android.os.Build;

import androidx.core.app.NotificationCompat;


public class JobScheduler14 extends JobService {


    @Override
    public boolean onStartJob(JobParameters jobParameters) {
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        showNotification("Inducesmile", "Job finished");
        return false;
    }

    @Override
    public boolean onStopJob(JobParameters jobParameters) {

        return false;
    }

    private void showNotification(String title, String task){
        NotificationManager notificationManager = (NotificationManager) getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE);
        if(Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O){
            NotificationChannel notificationChannel = new NotificationChannel("inducesmile", "inducesmile", NotificationManager.IMPORTANCE_DEFAULT);
            notificationManager.createNotificationChannel(notificationChannel);
        }
        NotificationCompat.Builder notification = new NotificationCompat.Builder(getApplicationContext(),"inducesmile")
                .setContentTitle(title)
                .setContentText(task)
                .setSmallIcon(R.mipmap.ic_launcher);
        notificationManager.notify(1, notification.build());
    }
}

AndroidManifest.xml

<service
            android:name=".JobScheduler14"
            android:permission="android.permission.BIND_JOB_SERVICE" />

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