Android 如何使用Workmanager/PeriodicWorkRequest在间隔之间保存数据

我需要IntervalWork类中的一个变量在不同的调用或间隔期间保存它的数据。在类中使变量成为静态或全局变量不起作用。怎么做

间隔（“保留”总是失去价值）：

主要活动：

        Constraints IntervalWorkerCS = new Constraints.Builder()
            .setRequiresBatteryNotLow(true)
            .build();
    //W/WM-WorkSpec: Interval duration lesser than minimum allowed value; Changed to 900000(15 minutes)
    PeriodicWorkRequest periodicWork = new PeriodicWorkRequest.Builder(IntervalWork.class, 15, TimeUnit.MINUTES)
            .setConstraints(IntervalWorkerCS)
            .setInitialDelay(delay,TimeUnit.MINUTES)
            .addTag("MyID")
            .build();
        WorkManager.getInstance(this).cancelAllWork();
        WorkManager.getInstance(this).enqueueUniquePeriodicWork("MyID", ExistingPeriodicWorkPolicy.KEEP, periodicWork);

---

您的流程可能在工作项之间终止。因此，如果您希望保留数据，请将其保存在文件（数据库、

SharedReferences

等）或服务器上

        Constraints IntervalWorkerCS = new Constraints.Builder()
            .setRequiresBatteryNotLow(true)
            .build();
    //W/WM-WorkSpec: Interval duration lesser than minimum allowed value; Changed to 900000(15 minutes)
    PeriodicWorkRequest periodicWork = new PeriodicWorkRequest.Builder(IntervalWork.class, 15, TimeUnit.MINUTES)
            .setConstraints(IntervalWorkerCS)
            .setInitialDelay(delay,TimeUnit.MINUTES)
            .addTag("MyID")
            .build();
        WorkManager.getInstance(this).cancelAllWork();
        WorkManager.getInstance(this).enqueueUniquePeriodicWork("MyID", ExistingPeriodicWorkPolicy.KEEP, periodicWork);