How can I know whether a JobScheduler is running?

Question

After I invoke Code A, the JobScheduler will keep running even if I close the APP.

But some customize Android system maybe clear JobScheduler when close the APP.

How can check if the JobScheduler is running programmatically?

Code A

private fun startScheduleRestore(mContext:Context){
   logError("Start Server")

   val interval=if (isDebug())
                    10*1000L
                 else
                    mContext.getInteger(R.integer.AutoRestoreInterval)*60*1000L

    val mJobScheduler = mContext.getSystemService(Context.JOB_SCHEDULER_SERVICE) as JobScheduler

    val jobInfo = JobInfo.Builder(mContext.getInteger(R.integer.JobID), ComponentName(mContext, RestoreService::class.java))
                        .setPeriodic(interval)
                        .setPersisted(true)
                        .build()

    mJobScheduler.schedule(jobInfo)
}

Code B

private fun stopScheduleRestore(mContext:Context){
    logError("Stop Server")

    val mJobScheduler = mContext.getSystemService(Context.JOB_SCHEDULER_SERVICE) as JobScheduler
    mJobScheduler.cancel(mContext.getInteger(R.integer.JobID))

}

Answer 1

You can use getAllPendingJobs method of JobScheduler. Based on documentation:

a list of all of the app's scheduled jobs. This includes jobs that are currently started as well as those that are still waiting to run.

public static boolean isJobSchedulerRunning(final Context context) {
    final JobScheduler jobScheduler = (JobScheduler) context.getSystemService( Context.JOB_SCHEDULER_SERVICE );    
    return jobScheduler.getAllPendingJobs().size() > 0;
}

If want to check if particular JobId is still valid then you can do following:

public static boolean isJobIdRunning( Context context, int JobId) {
    final JobScheduler jobScheduler = (JobScheduler) context.getSystemService( Context.JOB_SCHEDULER_SERVICE ) ;

    for ( JobInfo jobInfo : jobScheduler.getAllPendingJobs() ) {
        if ( jobInfo.getId() == JobId ) {
           return true;
        }
    }

    return false;
}

Answer 2

Run Adb Command

adb shell dumpsys jobscheduler

It will show you list of jobs scheduled and you can identify you own task