SupportingPaneScaffold - seekBack :back: I am on ...

# compose

[Jonas]

SupportingPaneScaffold - seekBack 🔙
I am on an endeavour to implement predictive in (CMP).
As the implementation was doing nothing I tried to call seekBack directly and noticed that it also does nothing.
With debugging I realised that the transition property of the SeekableTransitionState is null.
Am I missing a crucial setup step? Has anyone observed a similar behaviour?

[Jonas]

Example.kt

Example.kt

[Jonas]

Figured it out, I have to use the SupportingPaneScaffold which takes navigator.scaffoldState instead of navigator.scaffoldValue as argument.

[Jonas]

Example.kt

Example.kt

[Jonas]

Basically exactly the inverted mistake I did here.

[Jonas]

Ok, not solved yet. With this change the scaffold does not switch to multi pane on resize or if it has initially enough space.

[Jonas]

For reference, @Yang Dai (FireWoW) reported this issue two months ago: https://youtrack.jetbrains.com/issue/CMP-8962/ListDetailPaneScaffold-detail-pane-doesnt-adapt-to-window-size-when-scaffoldState-is-used