CupertinoTabScaffold multiple pages

[benoitjadinon]

Whenever you set a bottomNavBar on ios, the CupertinoPageScaffold creates a CupertinoTabScaffold, but its tabBuilder recreates a new CupertinoPageScaffold on each tab click without using the index argument, so it just basically duplicates the body, making the nav bar useless.
Any idea on how to handle ios navigation ? a callback inside CupertinoPageScaffoldData ?
thanks

[aqwert]

I will need to look into this a little more. Hopefully in the next few days.

in the meantime could you provide sample code of how you are using it?

[aqwert]

I found the issue you are experiencing. Will be getting a fix out soon

[benoitjadinon]

ok it's when using a body with a GlobalKey, I get a "Multiple widgets used with the same GlobalKey" error, the current body of the platformscaffold is also used as a CupertinoPageScaffold child (Widget child = body ?? data?.body;) for the newly created CupertinoPageScaffold after a click on a tab, so they maybe both exist at the same time (even for a millisecond before the new body is recalculated), creating this error, that's why the second page also showed the body of the first tab (default body)

I probably shouldn't have used a GlobalKey there (because I had a scaffold as the body of an other one, to get an inside drawer),
about having the scaffold body as base for the other tab pages, at first I thought it was weird, but thinking of it, it's pretty clever ;-)
there may be no simpler way to deal with it, because of the need for a CupertinoPageScaffold wrap, so ok

thanks

[benoitjadinon]

have you experienced the same issue ? what would the fix be ?

[nuzelac]

I think I am experiencing the same issue:

[aqwert]

Can you post sample code that displays this issue

[deakjahn]

It's basically completely wrong, yes. One workaround could be to make sure you pass a PageView in this case as the body of your scaffold and modify the code to extract the page in question (in createIosWidget()):

child: iosContentPad(context, (body as PageView).childrenDelegate.build(context, index), navigationBar, tabBar),