WorkManager Stableに向けての所感

Transcript

1. WorkManager Stable Yoshihiro Wada a.k.a. @e10dokup Otemachi.apk #2 - 2019/03/18

   2019/3/20

2. Yoshihiro Wada a.k.a. @e10dokup CyberAgant Inc. / Ameba Ameba

3. WorkManager

4. Android Jetpack compileSdkVersion 28 API Play Services JobScheduler/AlermManager/FirebaseJobDispatcher FirebaseJobDispatcher 1.0.0-alpha12

   FirebaseJobDispatcher deprecated etc WorkManager

5. FirebaseJobDispatcher

6. None

7. WorkManager Stable 1.0.0 Released

8. Beta RC Stable bug x Breaking API Changes 2018/12/12 1.0.0-alpha13

   Codelabs API Changes

9. WorkManager

10. Worker WorkManager WorkRequest Worker Request WorkManager Request WorkManager WorkManager WorkRequest

    WorkManager

11. Worker doWork() WorkManager ˖ FYUFOET
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    GBJMVSF
    ׾鵤ׅ 8PSLFS class MyWorker( context: Context, params: WorkerParameters ) : Worker(context, params) { override fun doWork(): Worker.Result { // Կ͔͠Βͷॲཧ return Worker.Result.success() } }

12. WorkRequest optional Worker OneTimeWorkRequest - WorkRequest PeriodicWorkRequest - WorkRequest WorkManager

    ˖ 8PSLFSח㹋遤ח䗳銲ז⦼׾♷ִ׷
    ˖ %BUBؙٓأ׾CVJME׃׋׮ך׾TFU*OQVU%BUBדTFUׅ׷
    ˖ 8PSLFS⩎דכHFU*OQVU%BUBד《׶⳿ׅ 8PSL3FRVFTU // Workerʹ஋Λ༩͑Δ val data = Data.Builder().putString("KEY", "VALUE").build() OneTimeWorkRequest.Builder(MyWorker::class.java) .setInputData(data) .build() // WorkerͰ஋ΛऔΓग़͢ getInputData().getString("KEY")

13. 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.BOBHFSFORVFVFׅ׷׌ֽ 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)

14. potatotips 8PSL.BOBHFS :PTIJIJSP
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    ְתׁ׵ https://bit.ly/2UF3k4Q

15. WorkManager Executor Constraints

16. DB Worker GreedyScheduler ThreadPool JobSchedulers createBestAvailableBackgroundScheduler API Level 23 JobSchedulers

    Google Play Services FirebaseJobDispatcher AlermManager + BroadCastReceiver Executor ref: https://speakerdeck.com/takahirom/workmanager （58P）

17. DB Worker GreedyScheduler ThreadPool JobSchedulers createBestAvailableBackgroundScheduler API Level 23 JobSchedulers

    AlermManager + BroadCastReceiver Executor ref: https://speakerdeck.com/takahirom/workmanager （58P）

18. Constraints WorkRequest Constraints ˖ 8PSL3FRVFTU׾⡲׷媮ꥡד$POTUSBJOU׾♷ִ׷ֿהד㹋遤儗חⵖ秈׾⸇ִ׵׸׷ 8PSLך㹋遤朐䡾׾ⵖꣲ׃׋ְ // ୺຤͕ॆిதͰ͋Δ੍໿ΛՃ͑Δ val constraints

    = Constraints.Builder() .setRequiresCharging(true) .build() continuation = continuation.then( OneTimeWorkRequest.Builder(AWorker::class.java) .setConstraints(constraints) .build() )

19. WorkManager Constraints NetworkType - BatterNotLow - Charging - StorageNotLow -

    DeviceIdle - Doze Idle API23 Constraints

20. WorkManager Constraints NetworkType - BatterNotLow - Charging - StorageNotLow -

    DeviceIdle - Doze Idle API23 Constraints ConstraintController Tracker Constraints

21. WorkManager Constraints NetworkType - BatterNotLow - Charging - StorageNotLow -

    DeviceIdle - Doze Idle API23 Constraints ConstraintController Tracker Constraints

22. Constrains Builder Charging Constraints WorkManager TaskExecuter Worker WorkerFactory Tracker ConstraintController

    Charging Constraint public @NonNull Builder setRequiresCharging(boolean requiresCharging) { this.mRequiresCharging = requiresCharging; return this; }

23. BatteryChargingController Room DB Charging Constraint BatteryChargingTracker ACTION_BATTERY_CHANGED intent ACTION_CHARGING /

    ACTION_POWER_CONNECTED Tracker Constraint Back-o Worker Charging Constraint

24. 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

25. Executor Constraints Firebase JobDispatcher WorkManager migrating https://developer.android.com/topic/libraries/architecture/workmanager/ migrating-fb