Android JobScheduler with Idle requirement does not get fired

问题

I have a service that extends JobService as below:

public class MyService extends JobService {
    private int notificationNumber = 0;

    private Thread thread;


    @Override
    public boolean onStartJob(JobParameters params) {
        Toast.makeText(this, "Service1 Started with JobId: " + params.getJobId(), Toast.LENGTH_LONG).show();
        thread = new WorkerThread(this, params);
        thread.start();
        return true;
    }

    @Override
    public boolean onStopJob(JobParameters params) {
        createNotification("Service1 onStop with JobId");
        return false;
    }

    public void createNotification(String msg) {
        notificationNumber++;
        NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
        builder.setContentText(msg);
        builder.setContentTitle("New Notification #" + notificationNumber);
        builder.setSmallIcon(R.mipmap.ic_launcher);
        builder.setAutoCancel(true);

        NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        Notification notification = builder.build();
        manager.notify(notificationNumber, notification);
    }

}

class WorkerThread extends Thread {
    private MyService service;
    private JobParameters params;
    public WorkerThread(MyService service, JobParameters params) {
        this.service = service;
        this.params = params;
    }

    @Override
    public void run() {
        try {
            service.createNotification("Service1.WorkerThread Started");
            Thread.sleep(10000);

            service.createNotification("Service1.WorkerThread Finished");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            Log.i("##########", "Job Finished");
            service.jobFinished(params, false);
        }
    }
}

and using JobInfo.builder I instantiate from that and get it run by JobScheduler as below:

public void scheduleService() {
        int JOB_ID =1;
        long y=100;
        ComponentName serviceName = new ComponentName(this, MyService.class);
        JobInfo jobInfo = new JobInfo.Builder(JOB_ID, serviceName)
//                .setRequiredNetworkType(JobInfo.NETWORK_TYPE_UNMETERED)
//                .setBackoffCriteria(y,JobInfo.BACKOFF_POLICY_LINEAR)
                .setPeriodic(y)
                .setRequiresDeviceIdle(true)
                .build();
        JobScheduler scheduler = (JobScheduler) this.getSystemService(Context.JOB_SCHEDULER_SERVICE);
        int result = scheduler.schedule(jobInfo);
        if (result == JobScheduler.RESULT_SUCCESS) {
            Log.d("Test", "Job scheduled successfully!");
        }
    }

even when I use:

        JobInfo jobInfo = new JobInfo.Builder(JOB_ID, serviceName)
//                .setRequiredNetworkType(JobInfo.NETWORK_TYPE_UNMETERED)
//                .setBackoffCriteria(y,JobInfo.BACKOFF_POLICY_LINEAR)
                .setPeriodic(y)
//                .setRequiresDeviceIdle(true)
                .build();

nothing works. Although this:

if (result == JobScheduler.RESULT_SUCCESS) {
        Log.d("Test", "Job scheduled successfully!");
    }

shows that job is scheduled correctly but even 1 line of the service won't get called! Any Idea?

And about the manifest:

       <service
        android:name=".MyService"
        android:enabled="true"
        android:permission="android.permission.BIND_JOB_SERVICE"
        android:exported="true"></service>

Everything seems right!!!

===========Edit without Idle requirement is gets fired but after a long time.

TG.

回答1:

Finally I found the reason. Everything was ok but the minimum time.

I found my question's answer at here:

Job Scheduler not running on Android N

As you see here the minimum time to set for scheduling is about 15 minutes. I left the phone 15 mins in the Idle mode and it got fired.

The corresponding log that I wasn't caring it was this:

01-19 22:39:01.775 31125-31125/ir.cclever.prepareforclass W/JobInfo: Specified interval for 114 is +10ms. Clamped to +15m0s0ms

I wish this post helps others encountering this issue.

TG.

来源：https://stackoverflow.com/questions/41749740/android-jobscheduler-with-idle-requirement-does-not-get-fired