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Setting BackCardsDepth causes items to flash in and out

See original GitHub issue

Repro steps:

  1. Have a list with a bunch of items (eg. 6). Use IsCyclical="False"
  2. Set BackCardsDepth to a large number (eg. 10)
  3. Create two buttons which increment/decrement SelectedIndex
  4. Scroll to the end of the list, then scroll back to the start

Expected Results: Nothing unusual

Actual results: When you scroll back to the first item, the last item briefly (~250ms) flashes on the screen

Issue Analytics

  • State:closed
  • Created 2 years ago
  • Comments:7 (4 by maintainers)

github_iconTop GitHub Comments

AndreiMisiukevichcommented, May 16, 2021

Anyway, that’s not a bug. That’s the limitation of Forms. XF can’t render so many views at the same time, that’s why some glitches appear.

If you want to forbid reusing views among different items while scrolling the carousel, then just set IsViewReusingEnabled to False

And optionally set DesiredMaxChildrenCount to 12 for example

yonkahloncommented, Jun 2, 2021

CoverFlowView works perfectly 😃

Thanks for pointing me in the right direction!

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