使用ViewPager在片段内的片段 [英] Fragment inside a fragment with ViewPager

问题描述

是否可以在Android的片段中放入片段?考虑一下:说，我使用Fragment和ViewPager实现可滑动选项卡.现在，在每个可滑动片段中，我想实现另一个片段-有点像嵌套在另一个片段中的片段.但是需要将一个片段附加到Activity类.那怎么办呢?

Is it possible to put a fragment inside a fragment in Android? Consider this: Say, I implement swipeable tabs using Fragment and ViewPager. Now, inside each of these swipeable fragments, I want to implement another fragment - kind of like a fragment nested inside another fragment. But a fragment needs to be attached to an Activity class. So how can this be done?

推荐答案

是否可以在Android的片段中放入片段?

Is it possible to put a fragment inside a fragment in Android?

使用Android支持程序包的片段反向移植，是的.此外，Android 4.2及更高版本(API级别17+)上的本机片段支持嵌套片段.但是，API级别11-16中的本机片段则没有.

Using the Android Support package's backport of fragments, yes. Also, native fragments on Android 4.2 and higher (API Level 17+) support nested fragments. However, native fragments from API Level 11-16 do not.

说，我使用Fragment和ViewPager实现可滑动选项卡.现在，在每个可滑动片段中，我想实现另一个片段-有点像嵌套在另一个片段中的片段.但是需要将一个片段附加到Activity类.那怎么办呢?

Say, I implement swipeable tabs using Fragment and ViewPager. Now, inside each of these swipeable fragments, I want to implement another fragment - kind of like a fragment nested inside another fragment. But a fragment needs to be attached to an Activity class. So how can this be done?

此示例项目演示了，并使ViewPager本身位于一个片段中.关键是您提供给FragmentPagerAdapter 的FragmentManager必须是外部片段(即getChildFragmentManager())的子片段管理器.

This sample project demonstrates having fragments in a ViewPager and having the ViewPager itself be in a fragment. The key is that the FragmentManager you supply to your FragmentPagerAdapter must be the child fragment manager of the outer fragment (i.e., getChildFragmentManager()).

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