Feature : support for a list of 2 items

[giboin]

Description

Hi everyone, thanks for this amazing package!
Here is my problem : I need to display a slider of 2 elements like this :

Simulator.Screen.Recording.-.iPhone.15.Pro.-.2024-06-20.at.16.18.47.mp4

(sorry for the performance of this demo, not my best work here 😅)

Because of the assert itemCountBefore + itemCountAfter +1 >= children.length, I need to specify either itemCountBefore = 0 or itemCountAfter = 0.
If I say that itemCountAfter = 0, then when the first item is selected, we don't see the second one.
If I say that itemCountBefore = 0, then when the second item is selected we won't see the first one.

Ideas on how to solve

• We could allow to pass any value to itemCountAfter and itemCountBefore, and virtually add SizedBow.shrink to children (by virtually I mean that they are rendered by the slider but the controller and the scrollPosition can't go to them)
• Maybe find a way to keep rendering every children that stay on the screen, so that I can say itemCountAfter = 1 and itemCountBefore = 0 but the first item doesn't disappear when the second one is selected

Thank you!

[brun0xon]

Solved by:

itemCountBefore: switch (_currentIndex) {
            0 || 1 when items.length <= 2 => 0,
            _ => 1,
          },
itemCountAfter: switch (_currentIndex) {
            0 when items.length == 1 => 0,
            1 when items.length == 2 => 1,
            _ => 1,
          },