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いまさらWorkManager
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Yoshihiro WADA
January 28, 2019
Programming
1
890
いまさらWorkManager
2019/1/28に開催されたPotatotips #58にて発表した資料です
Yoshihiro WADA
January 28, 2019
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Transcript
WorkManager Yoshihiro Wada a.k.a. @e10dokup 2019/1/28 at Potatotips #58
a.k.a. e10dokup CyberAgent Inc. Ameba
None
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
Android Jetpack compileSdkVersion 28 API Play Services JobScheduler/AlermManager/ FirebaseJobDispatcher etc
WorkManager
Worker WorkManager WorkRequest Worker Request WorkManager Request WorkManager WorkManager WorkRequest
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() } }
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")
OneTimeWorkRequest Worker Request PeriodicWorkRequest Worker Request WorkRequest
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)
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()
WorkManager#beginUniqueWork ExistingWorkPolicy REPLACE - KEEP - APPEND - Work -
var continuation = workManager.beginUniqueWork( "unique_work_id", ExistingWorkPolicy.REPLACE, OneTimeWorkRequest.from(AWorker::class.java) )
WorkRequest Constraint Work // ͕ॆిதͰ͋Δ੍ΛՃ͑Δ val constraints = Constraints.Builder() .setRequiresCharging(true)
.build() continuation = continuation.then( OneTimeWorkRequest.Builder(AWorker::class.java) .setConstraints(constraints) .build() )
NetWorkType - BatteryNotLow - Charging - StorageNotLow - DeviceIdle -
API23 Doze Idle Work
WorkRequest tag set WorkStatus uniqueId Continuation LiveData RxJava2 -> RxWorker
1.0.0-alpha12 Codelabs 2-3