CODEWITHSUNDEEP
androidandroid-fragmentsandroid-viewpagerfragment
0xmars511
0xmars511

Reputation: 143

Use fragments in fragment

I am using FragmentStatePagerAdapter to create view pager for a list of objects. Each page is a fragment.

However, on that page, I am also using fragments to display some other data.

I got problem when doing this. I wonder can I put fragments in fragment. Or any other solutions to work this out?

Upvotes: 1

Views: 362

Answers (3)

Marcio Covre
Marcio Covre

Reputation: 4556

I have used Fragments inside an Fragment in a project. The way I ended up doing is adding these inside fragments via code and using the fragment attached to the activity as a "proxy" for the other, so on the oncreateview() of the fragment you instantiate the inside fragments, ondestroyview() you remove the inside fragments and so on.

Upvotes: 0

Marcin Orlowski
Marcin Orlowski

Reputation: 75619

Nested fragments are not supported by current fragment implementation (it was answered by Diane, Android engineer as well here:

Nested fragments are not currently supported. Trying to put a fragment within the UI of another fragment will result in undefined and likely broken behavior.

But it does not mean it is not doable - it can be achieved, however requires writing some more code than just fragment. There's comment in same thread by other user:

I managed this by extending FragmentActivity, FragmentManager, and FragmentTransaction. Basic premise is extend DeferringFragmentActivity in my activities, providing same api so no other code changes. When I call getFragmentManager, I get an instance that DeferringFragmentManager, and when I call beginTransaction, I get a DeferredTransaction. This transaction stores POJOs with the called method and arguments. When commit is call, we look for any pending DeferredTransactions first. Once all transactions have been committed, we start a real transaction and run all the stored methods with args

In general - unless you are desperated, just redesign your layout.

Upvotes: 1

Pauland
Pauland

Reputation: 2014

Fragments cannot hold other fragments. It's not supported (errors with state)

Upvotes: 0

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