如何在不进行序列化的情况下将对象作为输入传递给WorkManager?

本文介绍了如何在不进行序列化的情况下将对象作为输入传递给WorkManager?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 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 MAX_DATA_BYTES .如果数据不是太大，则可能需要将其序列化为String并将其用作WorkRequest中的inputData.另一种方法是只将对象的引用放入inputData中. 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.