WorkManager Basics: WorkStatus Observation

CancelWork.kt

WorkManager.getInstance().cancelWorkById(uploadWorkRequest.id) 
WorkManager.getInstance().cancelAllWorkByTag("sometag")

SimpleWorkStatusObservation.kt

// In your UI (activity, fragment, etc)
// Each WorkRequest has a unique id and that unique id is one way to look up the associated WorkInfo.
WorkManager.getInstance().getWorkInfoByIdLiveData(uploadWorkRequest.id)
        // The ability to observe and be notified when the WorkInfo changes is a feature provided by LiveData.
        .observe(lifecycleOwner, Observer { workInfo ->
            // Check if the current work's state is "successfully finished"
            if (workInfo != null && workInfo.state == WorkInfo.State.SUCCEEDED) {
                displayImage(workInfo.outputData.getString(KEY_IMAGE_URI))
            }
        })

// Observe by tag, which is something associated with the WorkRequest(s)
WorkManager.getInstance().getWorkInfoByTagLiveData("sometag")