工作状态观察者始终处于排队状态 [英] workstatus observer always in enqueued state

问题描述

我正在尝试观察我的workers，但是它们始终处于queued状态，或者有时是RUNNING，但从未处于SUCCEED或FAILED.

I am trying to observe my workers but they are always in queued state or sometime it's RUNNING but never SUCCEED or FAILED.

workStatus.state是从doWork()返回的还是不同的?

is workStatus.state from return in doWork() or it's different?

这是我的工作脚本:

package com.mockie.daikokuten.sync.workers

import androidx.work.Worker


class TestWorker:Worker()
{

override fun doWork():Worker.Result
{
    return Worker.Result.SUCCESS
}

}

这是观察工人的脚本:

 val test = PeriodicWorkRequest.Builder(
            TestWorker::class.java,
            PeriodicWorkRequest.MIN_PERIODIC_INTERVAL_MILLIS,
            TimeUnit.MILLISECONDS)
            .addTag("test_worker")
            .build()

    WorkManager.getInstance()?.enqueueUniquePeriodicWork("test_worker", ExistingPeriodicWorkPolicy.KEEP, test)

    WorkManager.getInstance()!!.getStatusesByTag("test_worker")
            .observe(this, Observer { workStatus ->
                if (workStatus != null)
                {
                    for(ws in workStatus)
                    {
                        Log.d(":dump2 id ", ws.id.toString())
                        Log.d(":dump2 tag", ws.tags.toString())
                        Log.d(":dump2 state", ws.state.toString())
                    }
                }
            })

这是Logcat中的结果:

this is the result in Logcat:

 07-23 17:12:30.901 29740-29740/com.mockie.daikokuten D/:dump2 id: 5c6297f7-11d8-4f2f-a327-773672a7435c
 07-23 17:12:30.901 29740-29740/com.mockie.daikokuten D/:dump2 tag: [test_worker, com.mockie.daikokuten.sync.workers.TestWorker]
 07-23 17:12:30.901 29740-29740/com.mockie.daikokuten D/:dump2 state: ENQUEUED

推荐答案

对于您的定期工作要求，您应该看到

For your periodic work request you should see

ENQUEUED - RUNNING - ENQUEUED

其中后一个ENQUEUED是下一个工作请求的状态.

where the latter ENQUEUED is the state of the next work request.

在运行和入队之间，您可能会短暂获得成功，但我从未见过.

You might get very briefly a SUCCEEDED between RUNNING and ENQUEUED, but I have never seen that.

对于一次性工作请求，您会看到

For a onetime work request you see

ENQUEUED - RUNNING - SUCCEEDED

或您在doWork()中返回的任何内容.

or whatever you return in doWork().

(Android 8.1 API 27，1.0.0-alpha04)

(Android 8.1 API 27, 1.0.0-alpha04)

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