Android 具有空闲要求的 JobScheduler 不会被解雇

Question

我有一个 service 扩展 JobService 如下：

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);
        }
    }
}

并使用 JobInfo.builder 我从中实例化并通过 JobScheduler 获取它运行如下：

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!");
        }
    }

即使我使用：

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

没有任何效果。虽然这样：

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

表明作业已正确安排，但即使有 1 行服务也不会被调用！有什么想法吗？

关于清单：

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

一切似乎都是对的！！！

===========编辑没有空闲要求会被解雇但是很长一段时间后。

TG.

Answer 1

终于找到原因了。一切正常，但最短时间。

我在这里找到了问题的答案：

正如您在此处看到的，为日程安排设置的最短时间约为 15 分钟。我在空闲模式下 phone 15 分钟后它被解雇了。

我没在意的对应日志是这样的：

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

我希望这 post 能帮助其他遇到此问题的人。

TG.

Android 具有空闲要求的 JobScheduler 不会被解雇

Android JobScheduler with Idle requirement does not get fired

service

android

android-jobscheduler