AsyncTask 线程规则 - 它真的只能使用一次吗? [英] AsyncTask Threading Rule - Can it really only be used once?

问题描述

在关于AsyncTask的文档中，它给出了以下规则与线程相关:

In the documentation on AsyncTask it gives the following as a rule related to threading:

• 该任务只能执行一次(如果尝试第二次执行，则会抛出异常.)

所有这一切意味着，每次要使用该类时，都必须创建该类的新实例，对吗?换句话说，必须这样做:

All this means is that you have to create a new instance of the class every time you want to use it, right? In other words, it must be done like this:

new DownloadFilesTask().execute(url1, url2, url3);
new DownloadFilesTask().execute(url4, url5, url6);

或者相反，您不能执行以下操作:

Or conversely, you can NOT do the following:

DownloadFilesTask dfTask = new DownloadFilesTask();
dfTask.execute(url1, url2, url3);
dfTask.execute(url4, url5, url6);

有人可以验证这是一个准确的解释吗?

Can someone verify this is an accurate interpretation?

我意识到我在打字时几乎只是为自己回答了这个问题......但对我来说并不是很明显，所以我认为尽管如此，这仍然会很有用.

I realize I pretty much just answered this for myself as I was typing this out... But it wasn't immediately obvious to me so I think this would be useful to have posted nonetheless.

推荐答案

有人可以验证这是准确的吗解释?

Can someone verify this is an accurate interpretation?

这是一个非常准确的解释.

That is a very accurate interpretation.

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