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WorkManager
Yoshihiro Wada a.k.a. @e10dokup
2019/1/28 at Potatotips #58
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a.k.a. e10dokup
CyberAgent Inc.
Ameba
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No content
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2018/12/23 - 1.0.0-beta01
2019/1/15 1.0.0-beta02
2018/12/12 - 1.0.0-alpha13
Breaking Change
Codelabs
WorkManager
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Android Jetpack
compileSdkVersion 28
API Play Services JobScheduler/AlermManager/
FirebaseJobDispatcher
etc
WorkManager
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Worker
WorkManager
WorkRequest
Worker Request WorkManager
Request WorkManager
WorkManager
WorkRequest
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extends Worker
doWork()
Worker.Result.success() / failure()
Worker
class MyWorker(
context: Context, params: WorkerParameters
) : Worker(context, params) {
override fun doWork(): Worker.Result {
// Կ͔͠Βͷॲཧ
return Worker.Result.success()
}
}
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Worker
Data build setInputData set
Worker getInputData
WorkRequest
// WorkerʹΛ༩͑Δ
val data = Data.Builder().putString("KEY", "VALUE").build()
OneTimeWorkRequest.Builder(MyWorker::class.java)
.setInputData(data)
.build()
// WorkerͰΛऔΓग़͢
getInputData().getString("KEY")
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OneTimeWorkRequest
Worker Request
PeriodicWorkRequest
Worker Request
WorkRequest
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WorkManager#enqueue
WorkRequest
workManager = WorkManager.getInstance()
val data = Data.Builder().putString("KEY", "VALUE").build()
val request = OneTimeWorkRequest.Builder(MyWorker::class.java)
.setInputData(data)
.build()
workManager.enqueue(request)
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WorkManager#beginWith Continuation then Work
Continuation#enqueue
Work
// AWorker -> BWorker -> CWorkerͷॱʹ࣮ߦ͞Ε͍ͯ͘WorkContinuation
val continuation =
workManager.beginWith(OneTimeWorkRequest.from(AWorker::class.java))
continuation.then(OneTimeWorkRequest.from(BWorker::class.java))
continuation.then(OneTimeWorkRequest.from(CWorker::class.java))
continuation.enqueue()
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WorkManager#beginUniqueWork
ExistingWorkPolicy
REPLACE -
KEEP -
APPEND -
Work -
var continuation = workManager.beginUniqueWork(
"unique_work_id",
ExistingWorkPolicy.REPLACE,
OneTimeWorkRequest.from(AWorker::class.java)
)
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WorkRequest Constraint
Work
// ͕ॆిதͰ͋Δ੍ΛՃ͑Δ
val constraints = Constraints.Builder()
.setRequiresCharging(true)
.build()
continuation = continuation.then(
OneTimeWorkRequest.Builder(AWorker::class.java)
.setConstraints(constraints)
.build()
)
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NetWorkType -
BatteryNotLow -
Charging -
StorageNotLow -
DeviceIdle - API23 Doze Idle
Work
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WorkRequest tag set WorkStatus
uniqueId Continuation
LiveData
RxJava2 -> RxWorker 1.0.0-alpha12
Codelabs
2-3