Home/ Questions/Q 9097789
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-17T00:12:09+00:00

I’d like to cache a fragment view. My Activity has swipeable tabs and each

  • 0

I’d like to cache a fragment view. My Activity has swipeable tabs and each tab calls a different fragment. But when i swipe between tabs the transition seems a quite slow because of the destruction of the fragment view, that is rebuilded during the swipe operation. Does anyone know how can i cache the view of each fragment to prevent this issue?
I work with library support v4 and api 14

I tried to implement a constructor for the fragments, called by the activity container of the fragments: i call the constructor, the fragments are created as variable of the activity class and then, whenever a fragment has to show itself, the activity class returns the fragment object i created before, but this doesn’t improve my application a lot because the view of the fragment is destroyed anyway

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    This is because internally by default the pager loads a maximum of 3 pages (fragments) at the time:
    the one displaying, previous and next so if you have 5 fragments this will happen while you move from first to last: (where x is a loaded fragment)

    xx000
    ->
    xxx00
    ->
    0xxx0
    ->
    00xxx
    ->
    000xx

    Try using 

    myPager.setOffscreenPageLimit(ITEMS_COUNT-1);

    This will tell the pager to keep all of them in memory and not destroy/create with every swipe (keep a close look on the memory management)

    • 0