Offscreenpagelimit vs setItemViewCacheSize ViewPager2

Asked Oct 09 '19 at 10:20

Active May 31 '22 at 18:22

Viewed 3,802 times

I'm using ViewPager2, newest version 'androidx.viewpager2:viewpager2:1.0.0-beta04'

I have 10 pages and each page is Fragment.

If i set viewpager2.offscreenPageLimit = 1 I have to scroll to page 5 to make the first page destroy.

What happened???, the first page supposed to be destroyed when I scroll to page 3 right??

Then i try the other way to make it right

(viewpager2.getChildAt(0) as RecyclerView).layoutManager?.isItemPrefetchEnabled = false
(viewpager2.getChildAt(0) as RecyclerView).setItemViewCacheSize(1)

This way, the first page will be destroyed when i scroll to page 3, it's working now

Can anyone explain to me the differences between these 2 attributes, please?

edited May 31 '22 at 18:22

TylerH

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asked Oct 09 '19 at 10:20

little_Friend

This seems like a bug to me. I've created a report for this in IssueTracker [here](https://issuetracker.google.com/issues/171180138). – Adil Hussain Oct 19 '20 at 17:33
It seems like this issue https://issuetracker.google.com/issues/150297771 – Long Ranger Nov 29 '20 at 10:04
viewpager2.offscreenPageLimit = 10, its will worked but very slow – Ihdina Jun 02 '21 at 14:12

Offscreenpagelimit vs setItemViewCacheSize ViewPager2

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