We can get WorkInfo by
- Unique Work Name:
WorkManager.getWorkInfosForUniqueWork - ID
- Tag
But we can only check for state, but we won't know when it will run next.
I run work manager
- with unique work name: I use this to query WorkInfo at later stage
- I add a timestamp tag to the work request, to indicate what time this work is expected to run
val workManager = WorkManager.getInstance(context)val workName = "reminder1"val delayInSeconds = 60*5val timestamp = LocalDateTime.now().toEpochSecond()!! + delayInSecondsval workRequest = OneTimeWorkRequestBuilder<ReminderWorker>() .setInitialDelay(delayInSeconds, TimeUnit.SECONDS) // .setInputData(data) .addTag("time:$timestamp") .build()workManager.enqueueUniqueWork(workName, ExistingWorkPolicy.REPLACE, workRequest)fun LocalDateTime.toEpochSecond(zone: ZoneId = ZoneId.systemDefault()) = atZone(zone)?.toEpochSecond()Now I can check when this work is expected to run
val workName = "reminder1"val workInfos = workManager.getWorkInfosForUniqueWork(workName).await()if (workInfos.size == 1) { val workInfo = workInfos[0] if (!workInfo.state.isFinished) { val re = "time:(\\d+)".toRegex() val timeTag = workInfo.tags.find { it.startsWith("time:") } if (timeTag != null) { val timestamp = re.find(timeTag)?.groupValues?.get(1)?.toLong() if (timestamp != null) { val now = LocalDateTime.now().toEpochSecond()!! if (now > timestamp + 60*5) { Timber.i("$workName expired ${now - timestamp}s") } else { Timber.i("$workName will run in ${timestamp - now}s") } } else { Timber.i("$workName timeTag extract fail") } } else { Timber.i("$workName missing timeTag") } } else { Timber.i("$workName isFinished") }}else { Timber.i("$workName WorkInfo missing=${workInfos.size}")}