如何每5秒重试一次WorkManager的工作 [英] How to run WorkManager's work retry every 5 seconds

问题描述

如何每5秒重试一次? 如果成功了就取消它吗?

How to retry work with every 5 seconds? And if was successful then cancel it?

下面的解决方案每10秒运行一次+时间线性增长.

With the solution below it runs every 10 seconds + Linear growth of time.

// todo: schedule, and invoke worker every 5 seconds
// todo: if the work is done and there is no more work in queue - cancel worker.

fun scheduleBatchUpload(uniqueWorkName: String) {
    val logBuilder = PeriodicWorkRequest.Builder(StreamLogWorker::class.java, 5, TimeUnit.SECONDS)

    logBuilder.setBackoffCriteria(BackoffPolicy.LINEAR, 5000, TimeUnit.MILLISECONDS) // Custom retry not working

    WorkManager.getInstance().enqueueUniquePeriodicWork(uniqueWorkName, ExistingPeriodicWorkPolicy.REPLACE, logBuilder.build())
}


class StreamLogWorker(context: Context, workerParams: WorkerParameters) : Worker(context, workerParams) {

    override fun doWork(): Result {
        Log.e("!!!!!!!!!!", "doWork")
        return Result.retry()
    }
}

推荐答案

对于PeriodicWorkRequest，这是不可能的.如果您查看PeriodicWorkRequest.Builder构造函数的文档正在使用中，您会看到它显示有关第二个参数的信息

That is not possible with the PeriodicWorkRequest. if you look at documentation of the the PeriodicWorkRequest.Builder constructor that you are using, you will see that it says following about the second parameter

重复间隔必须大于或等于 PeriodicWorkRequest.MIN_PERIODIC_INTERVAL_MILLIS.

The repeat interval must be greater than or equal to PeriodicWorkRequest.MIN_PERIODIC_INTERVAL_MILLIS.

PeriodicWorkRequest.MIN_PERIODIC_INTERVAL_MILLIS的值是900000，等于15分钟.

And the value of PeriodicWorkRequest.MIN_PERIODIC_INTERVAL_MILLIS is 900000, meaning it is equal to 15 minutes.

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