如果我在一个XML布局声明一个片段，我怎么把它传递一个包？

问题描述

我有，我已经更换成片段的活动。活动采取了原意，即对哪些数据的活动应该显示一些额外的信息。

现在，我的活动仅仅是一个围绕一个片段，做同样的工作，我如何得到这个包的片段，如果我宣布了片段与XML标签包装？

如果我是用FragmentTransaction把碎片成一个ViewGroup中，我会得到通过这个信息沿着片段构造一个机会，但我不知道在哪里的片段在XML中定义的情况。

解决方案

您不能。

不过，欢迎您来电 findFragmentById（）在 FragmentManager 检索片段后的通货膨胀，然后调用片段上的一些方法将数据与它相关联。虽然显然这不可能是 setArguments（），您的片段可以安排守住数据本身过去通过其他方式进行配置更改（的onSaveInstanceState <$ C C $>（） ， setRetainInstance（真），等等）。

I've got an activity that I've replaced with a fragment. The activity took an Intent that had some extra information on what data the activity was supposed to display.

Now that my Activity is just a wrapper around a Fragment that does the same work, how do I get that bundle to the Fragment if I declare the fragment in XML with the tag?

If I were to use a FragmentTransaction to put the Fragment into a ViewGroup, I'd get a chance to pass this info along in the Fragment constructor, but I'm wondering about the situation where the fragment is defined in XML.

解决方案

You can't.

However, you are welcome to call findFragmentById() on your FragmentManager to retrieve the fragment post-inflation, then call some method on the fragment to associate data with it. While apparently that cannot be setArguments(), your fragment could arrange to hold onto the data itself past a configuration change by some other means (onSaveInstanceState(), setRetainInstance(true), etc.).

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