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WorkManager Stableに向けての所感
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Yoshihiro WADA
March 18, 2019
Programming
2
470
WorkManager Stableに向けての所感
2019/3/18に開催されたOtemachi.apk #2の発表資料です。当日はFirebaseJobDispatcher周りについて事実とは異なる発言をしているので修正したものになります。
Yoshihiro WADA
March 18, 2019
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Transcript
WorkManager Stable Yoshihiro Wada a.k.a. @e10dokup Otemachi.apk #2 - 2019/03/18
2019/3/20
Yoshihiro Wada a.k.a. @e10dokup CyberAgant Inc. / Ameba Ameba
WorkManager
Android Jetpack compileSdkVersion 28 API Play Services JobScheduler/AlermManager/FirebaseJobDispatcher FirebaseJobDispatcher 1.0.0-alpha12
FirebaseJobDispatcher deprecated etc WorkManager
FirebaseJobDispatcher
None
WorkManager Stable 1.0.0 Released
Beta RC Stable bug x Breaking API Changes 2018/12/12 1.0.0-alpha13
Codelabs API Changes
WorkManager
Worker WorkManager WorkRequest Worker Request WorkManager Request WorkManager WorkManager WorkRequest
WorkManager
Worker doWork() WorkManager ˖ FYUFOET8PSLFSזؙٓأ甧ג ˖ EP8PSL ⰻד䗳銲זⳢ椚鎸鶢ׅ ˖ 䧭⸆٥㸣✪ח䘔ׄג8PSLFS3FTVMUTVDDFTT
GBJMVSF 鵤ׅ 8PSLFS class MyWorker( context: Context, params: WorkerParameters ) : Worker(context, params) { override fun doWork(): Worker.Result { // Կ͔͠Βͷॲཧ return Worker.Result.success() } }
WorkRequest optional Worker OneTimeWorkRequest - WorkRequest PeriodicWorkRequest - WorkRequest WorkManager
˖ 8PSLFSח㹋遤ח䗳銲ז⦼♷ִ ˖ %BUBؙٓأCVJME׃ךTFU*OQVU%BUBדTFUׅ ˖ 8PSLFS⩎דכHFU*OQVU%BUBד《⳿ׅ 8PSL3FRVFTU // WorkerʹΛ༩͑Δ val data = Data.Builder().putString("KEY", "VALUE").build() OneTimeWorkRequest.Builder(MyWorker::class.java) .setInputData(data) .build() // WorkerͰΛऔΓग़͢ getInputData().getString("KEY")
WorkManager WorkRequest enqueue WorkManager // Workerに値を与える val data = Data.Builder().putString(“KEY”,
“VALUE”).build() OneTimeWorkRequest.Builder(MyWorker::class.java) .setInputData(data) .build() // Workerで値を取り出す getInputData().getString(“KEY”) ˖ 8PSL.BOBHFSFORVFVFֽׅ 欰䧭׃8PSL3FRVFTUך㹋遤 workManager = WorkManager.getInstance() val data = Data.Builder().putString("KEY", "VALUE").build() val request = OneTimeWorkRequest.Builder(MyWorker::class.java) .setInputData(data) .build() workManager.enqueue(request)
potatotips 8PSL.BOBHFS :PTIJIJSP8BEBBLB!FEPLVQ BU1PUBUPUJQT ְתׁ https://bit.ly/2UF3k4Q
WorkManager Executor Constraints
DB Worker GreedyScheduler ThreadPool JobSchedulers createBestAvailableBackgroundScheduler API Level 23 JobSchedulers
Google Play Services FirebaseJobDispatcher AlermManager + BroadCastReceiver Executor ref: https://speakerdeck.com/takahirom/workmanager (58P)
DB Worker GreedyScheduler ThreadPool JobSchedulers createBestAvailableBackgroundScheduler API Level 23 JobSchedulers
AlermManager + BroadCastReceiver Executor ref: https://speakerdeck.com/takahirom/workmanager (58P)
Constraints WorkRequest Constraints ˖ 8PSL3FRVFTU⡲媮ꥡד$POTUSBJOU♷ִֿהד㹋遤儗חⵖ秈⸇ִ 8PSLך㹋遤朐䡾ⵖꣲ׃ְ // ͕ॆిதͰ͋Δ੍ΛՃ͑Δ val constraints
= Constraints.Builder() .setRequiresCharging(true) .build() continuation = continuation.then( OneTimeWorkRequest.Builder(AWorker::class.java) .setConstraints(constraints) .build() )
WorkManager Constraints NetworkType - BatterNotLow - Charging - StorageNotLow -
DeviceIdle - Doze Idle API23 Constraints
WorkManager Constraints NetworkType - BatterNotLow - Charging - StorageNotLow -
DeviceIdle - Doze Idle API23 Constraints ConstraintController Tracker Constraints
WorkManager Constraints NetworkType - BatterNotLow - Charging - StorageNotLow -
DeviceIdle - Doze Idle API23 Constraints ConstraintController Tracker Constraints
Constrains Builder Charging Constraints WorkManager TaskExecuter Worker WorkerFactory Tracker ConstraintController
Charging Constraint public @NonNull Builder setRequiresCharging(boolean requiresCharging) { this.mRequiresCharging = requiresCharging; return this; }
BatteryChargingController Room DB Charging Constraint BatteryChargingTracker ACTION_BATTERY_CHANGED intent ACTION_CHARGING /
ACTION_POWER_CONNECTED Tracker Constraint Back-o Worker Charging Constraint
https://android.googlesource.com/platform/frameworks/support/+/androidx- master-dev/work/workmanager/src/main/java/androidx/work/impl/constraints BatteryNotLow 15% ACTION_BATTERY_OKAY/LOW NetworkType ConnectivityManager METERED CONNECTED ROAMING
StorageNotLow ACTION_DEVICE_STORAGE_OK / LOW API 26 AndroidManifest BroadcastReceiver deprecated BroadcastReceiver Constraints
Executor Constraints Firebase JobDispatcher WorkManager migrating https://developer.android.com/topic/libraries/architecture/workmanager/ migrating-fb