Android Background Job Scheduler Tutorial with Example

By | June 11, 2019
Background JobScheduler in Android Tutorial Example

What is Job Scheduler in Android ?

JobScheduler is a Android framework API for scheduling tasks or work. It was first included available in Android 5.0 (API level 21), and remains under active development.JobScheduler define in JobService.

You can create Job Schedule to extends of Job Service class. JobScheduler was introduced in Lollipop and it is the most efficient way to perform background work. It performs background work based on conditions, not on time. 

You can use JobScheduler to registering jobs specifying their requirements for network and timing. 

Advantage of JobScheduler in Android

Job Scheduler is a Custom SyncAdapter and Alarm Manager the JobScheduler supports batch scheduling of jobs.

Android system used JobScheduler can combine jobs to reduce battery consumption.

Job Task are not critical or user facing . it is require network access or a Wi-Fi connection.

How to Create Job in JobScheduler Android ?

It is work in Unit of JobInfo Object. This object specifies the scheduling criteria. The job scheduler allows to consider the state of the device .

You can Schedule the task of specific Condition Like Device is charging , Device is connected to network, Device is idle etc.

What is JobInfo in JobScheduler ?

Job info is a Container of data passed to the JobScheduler parameters required to schedule work against the calling application.it is constructed using the JobInfo.Builder . You must specify at least one sort of constraint on the JobInfo object that you are creating.

What is JobService in Job Schedule Android ?

Job Service is a background service. job service is declared in the manifest but not protected with this permission, that service will be ignored by the system.

It is used to Start Job and Stop Job in background service.You can bind service in AndroidManifest.xml file.

Example of Job Scheduler in Android

Add Permission in AndroidManifest.xml File.

Create activity_main.xml File Follow this Code.

Create MainActivity.java File Follow this Code.

Create MyJobScheduler.java File Follow this Code.

You Must Bind Job Service in AndroidManifest.xml File.

JobScheduler in android example with tutorial

In this Example of Create JobScheduler service. i have create two button of start job and stop job. it is implement of JobScheduler and Job Info object create and this job info is bind JobService class. Job service class is a background process to implement of onStartJob and onStopJob.

onStartJob to display message and then onStopJob to finished job.you can click start job button to JobScheduler object to schedule job and start the service and then you can click stop job button to destroy or finish job service.