Android的 - 问题与Serializable接口 [英] Android - Problem with the Serializable interface

问题描述

我一直在使用序列化接口将对象传递从一个活动到另一个。我使用 putExtra 在发送方和 getSerializable 在接收端。一切工作正常，但我收到（首次）以下的错误报告：

I have been using the Serializable interface to pass an object from one activity to another. I am using putExtra on the sender side and getSerializable on the receiver side. Everything works fine but I have received (for the first time) the following error report:

了java.lang.RuntimeException：Parcelable遇到IOException异常读数
  Serializable对象

java.lang.RuntimeException: Parcelable encountered IOException reading a Serializable object

我不明白，因为我使用 getSerializable ，而不是 getParcelable 为什么这个异常已经产生。

I don't understand why this exception has been generated since I am using getSerializable and not getParcelable.

我知道我应该实现，而不是因为它已经为Android专门设计（这是我最终会做）的 Parcelable 接口，但我想知道为什么我收到此错误。

I know that I should implement the Parcelable interface instead because it has been designed specifically for Android (and that's what I will end up doing) but I want to understand why I am getting this error.

谢谢！

推荐答案

Parcelable 在这个错误被提及，因为意图您从一个活动到另一个发送有一个捆绑内，本捆绑是 Parcelable 。当你调用 Intent.putExtra（）这个额外添加到里面的捆绑。当意图的活动之间传递的捆绑转换和从字节数组，和你的序列化对象。

Parcelable is mentioned in this error because an Intent you send from one Activity to another has a Bundle inside and this Bundle is Parcelable. When you call Intent.putExtra() this extra is added to the inner Bundle. When Intent is passed between activities its Bundle is converted to and from a byte array and so is your Serializable object.

但我不知道为什么这个错误发生时。也许是因为在的writeObject（） / 的readObject（）实施

But I don't know why this error occurs. Maybe it's because of some bug in writeObject()/readObject() implementation.

这篇关于Android的 - 问题与Serializable接口的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！