NotificationScheduler

Summary

• JobScheduler provides a flexible framework to intelligently accomplish background services.
• JobScheduler is only available on devices running API 21 and higher.
• To use the JobScheduler, you need two parts: JobService and JobInfo.
• JobInfo is a set of conditions that trigger the job to run.
• JobService implements the job to run under the conditions specified by JobInfo.
• You only have to implement the onStartJob() and onStopJob() callback methods, which you do in your JobService.
• The implementation of your job occurs, or is started, in onStartJob().
• The onStartJob() method returns a boolean value that indicates whether the service needs to process the work in a separate thread.
• If onStartJob() returns true, you must explicitly call jobFinished(). If onStartJob() returns false, the runtime calls jobFinished() on your behalf.
• JobService is processed on the main thread, so you should avoid lengthy calculations or I/O.
• JobScheduler is the manager class responsible for scheduling the task. JobScheduler batches tasks to maximize the efficiency of system resources, which means that you do not have exact control of when tasks are executed.