CODEWITHSUNDEEP
androidandroid-viewpagerfragment
user2062024
user2062024

Reputation: 3661

When using ViewPager with Fragments, the fragments are destroyed upon swipe

My application has a ViewPager whose adapter returns three Fragments. Each Fragment loads a list of data from Web in the onCreateView. So let's call these fragments A, B, C.

Once the activity containing the viewPager is open, Fragments A and B are loaded. But only A is visible now. So if I swipe to the right, then B is visible and C is loaded behind the scene. If I swipe to right again, then C is visible. The problem is that, fragment A's onDestroyView() is called and all its loaded data is gone! So if I come back to fragment A, then A's onCreateView() is called again and A's data is loaded from the web again.

Is it a default behaviour of ViewPager when using it with Fragment? Is it possible to keek the fragment alive (by not calling onDestroyView()) even while it is not visible?

Thanks

Upvotes: 5

Views: 2262

Answers (1)

Adam Johns
Adam Johns

Reputation: 36373

try:

yourViewPager.setOffscreenPageLimit(2)

where 2 is the amount of pages to keep in memory on either side of the current page.

Upvotes: 10

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