如何在不进行序列化的情况下将对象作为输入传递给WorkManager? [英] how to pass object as input to WorkManager without Serialization?

问题描述

我需要将复杂的对象传递给WorkManager.或者我需要序列化包含Livedata和Date的对象.

I need to pass complex object to WorkManager. Or I need to serialize object which contains Livedata and Date.

它抛出java.lang.IllegalArgumentException:关键CabId2具有无效的类型类com.example.sonyadmin.data.Task

It throws java.lang.IllegalArgumentException: Key cabinId2 has invalid type class com.example.sonyadmin.data.Task

     val data = workDataOf("cabinId2" to task)
     val uploadWorkRequest = OneTimeWorkRequestBuilder<WManager>()
         .setInputData(data)
         .build()

推荐答案

WorkManager的数据类仅接受某些特定类型作为值，如参考文档中所述:

WorkManager's Data class only accepts some specific types as values as explained in the reference documentation:

一组持久的键/值对，用作ListenableWorkers的输入和输出.键是字符串，值可以是字符串，原始类型或其数组变体.

A persistable set of key/value pairs which are used as inputs and outputs for ListenableWorkers. Keys are Strings, and values can be Strings, primitive types, or their array variants.

最重要的是，其大小限制约为10KB，由常量 WorkManager的代码实验室对此有一个示例，其中将图像的URI传递到WorkRequest中，并且该图像在文件系统上.

On top of that there's a size limit of about 10KB, specified by the constant MAX_DATA_BYTES.
If the data is not too big, you may want to serialize it to a String and use that as inputData in your WorkRequest. The alternative is to just put a reference of your objects in the inputData. WorkManager's codelab has a sample of this where an URI of an image is passed into a WorkRequest and the image is on the filesystem.

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