5 دسامبر 2018

این نسخه حاوی برخی از تغییرات API در حال شکستن است. لطفاً بخش Breaking API تغییرات را در زیر مشاهده کنید. این نسخه به احتمال زیاد به عنوان اولین بتا ما منتشر می شود. alpha12 همچنین حاوی به روزرسانی های گسترده مستندات است.

تغییرات API

• یک مصنوعات جدید ، work-rxjava2 ، RxWorker معرفی می کند. این یک ListenableWorker است که انتظار دارد یک Single<Payload> .
• پشتیبانی از Firebase JobDispatcher به دلیل استهلاک قریب الوقوع آن حذف شده است. این بدان معناست که مصنوعات work-firebase در حالی که به بتا می رویم دیگر به روز نمی شود. ما در آینده به دنبال اضافه کردن یک گزینه جایگزین خواهیم بود.
• Payload ترکیبی در Result . Result اکنون یک "کلاس مهر و موم شده" با سه پیاده سازی بتونی است که می توانید از طریق Result.success() (یا Result.success(Data) ) ، Result.failure() (یا Result.failure(Data) ) و Result.retry() بدست آورید. Result.retry() . اکنون به جای Payload Result ListenableFuture شما نتیجه می گیرد. Worker روش های گیرنده و تنظیم کننده ای برای Data خروجی ندارند. این یک تغییر شکستن است.
• Added Constraints.Builder.setTriggerContentMaxDelay(long, TimeUnit) and Constraints.Builder.setTriggerContentUpdateDelay(long, TimeUnit) and variants to better support slow triggering content URIs. b/119919774
• Added WorkRequest.Builder.setBackoffCriteria(BackoffPolicy, Duration) variant. This method requires API 26.
• Added Operation.await() and ListenableFuture.await() Kotlin extension methods.
• Renamed Operation.getException() to Operation.getThrowable() . This is a breaking change.
• The ContentUriTriggers class and methods referencing it are no longer available for public usage. This is a breaking change.
• Removed the rest of the varargs methods in WorkManager , WorkContinuation , and OneTimeWorkRequest to streamline the API. To fix any build problems, you can wrap your existing varargs with Arrays.asList(...) . We still include single-argument versions of each method. This is a breaking change.
• Removed WorkContinuation.combine(OneTimeWorkRequest, *) variants. They were presenting a confusing API; the existing combine methods are more understandable. This is a breaking change.

رفع اشکال

• Pre-Marshmallow implementations are now more reliable in recovering from process death of an already-executing task.
• LiveData that is observed via observeForever is tracked via WorkManager. This is a backport of a Room library fix. b/74477406
• Data.Builder.build() now throws an exception if the serialized object exceeds its maximum size. This previously would only happen on a background thread where you couldn't properly handle it.
• Further distinguished stopped vs. cancelled work; getWorkInfoById() will return a WorkInfo with the CANCELLED State during ListenableWorker.onStopped() .
• Treat null Result s as failures in ListenableWorker . b/120362353
• Speculative fix for Shield Tablets running API 24 that sometimes threw an IllegalArgumentException . b/119484416

Breaking API Changes

• Support for Firebase JobDispatcher has been removed because of its impending deprecation. This means that the work-firebase artifact will no longer be updated as we head into beta. We will be looking into adding an alternative in the future.
• Combined Payload into Result . Result is now a "sealed class" with three concrete implementations, which you can obtain via Result.success() (or Result.success(Data) ), Result.failure() (or Result.failure(Data) ), and Result.retry() . Your ListenableFuture s now result Result instead of Payload . Worker s don't have getter and setter methods for output Data .
• Added Operation.await() and ListenableFuture.await() Kotlin extension methods.
• Renamed Operation.getException() to Operation.getThrowable() .
• The ContentUriTriggers class and methods referencing it are no longer available for public usage.
• Removed the rest of the varargs methods in WorkManager , WorkContinuation , and OneTimeWorkRequest to streamline the API. To fix any build problems, you can wrap your existing varargs with Arrays.asList(...) . We still include single-argument versions of each method.
• Removed WorkContinuation.combine(OneTimeWorkRequest, *) variants. They were presenting a confusing API; the existing combine methods are more understandable.

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