WorkManager doWork被解雇两次

Question

我的目标是每小时执行一次简单的任务。在应用程序启动时，我用ExistingPeriodicWorkPolicy.KEEP标志注册了唯一的定期工作。

这是我的实现方式

public class MyWorker extends Worker {

    public MyWorker(Context context, WorkerParameters workerParams) {
        super(context, workerParams);
        // I don't do anyting with workerParams
    }

    public static void enqueueWork() {
        Constraints constraints = new Constraints.Builder()
                .setRequiresBatteryNotLow(true)
                .build();

        PeriodicWorkRequest request = new PeriodicWorkRequest
                .Builder(MyWorker.class, 1, TimeUnit.HOURS)
                .setConstraints(constraints)
                .addTag("MyWorkerWork")
                .build();

        WorkManager.getInstance().enqueueUniquePeriodicWork("MyWorkerWork",
                ExistingPeriodicWorkPolicy.KEEP, request);
    }


    @NonNull
    @Override
    public Result doWork() {
        Log.i(TAG, "doWork");
        return Result.success();
    }
}

我唯一叫enqueueWork()的地方是Application#onCreate。

public class MyApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();

        MyWorker.enqueueWork();
    }
}

以上安装程序运行正常。问题之一是有时doWork连续两次被调用，之间间隔约30秒。这不是100％可重现的，但是当我整夜离开手机并于第二天回来并首次打开手机显示屏时，我经常会看到这种情况。

典型日志如下：

01-13 13:29:04.601 19018    19449    I/MyApp: doWork
01-13 13:29:04.700 19018    19124    I/WM-WorkerWrapper: Worker result SUCCESS for Work [ id=37064d6c-297b-4c0d-9fd7-xxxxxxxxxxxx, tags={ com.xxx.MyWorker, MyWorkerWork } ] 
01-13 13:29:42.203 19018    19482    I/MyApp: doWork
01-13 13:29:42.292 19018    19145    I/WM-WorkerWrapper: Worker result SUCCESS for Work [ id=37064d6c-297b-4c0d-9fd7-xxxxxxxxxxxx, tags={ com.xxx.MyWorker, MyWorkerWork } ] 

有趣的是，这种情况不会被进程杀死。如果您以前曾经历过，请提供帮助。