[kai engelhardt];

@andyl Hi Andy,
is there a way to set a minimum, maximum and preferred sidebar width for the UITabBarController API from iOS 18?

We have recently adopted this API and our bottomBarView is shrunk too much, so I expected we could control the column width like on a UISplitViewController, but I couldn‘t find any API for that.

Any help would be super appreciated!

Sep 8, 2025 at 6:32pmIvory for iOS
Show threadAndy LiangSep 14, 2025
@kaiengelhardt There’s no API to control the width for the sidebar. That being said, with iPadOS 26, it can now be resized by users within the system-defined range.
Show threadSteve Troughton-SmithSep 14, 2025
@andyl @kaiengelhardt that sounds like it could be another blocker for me — I have to set the initial split view sidebar width in my apps for certain languages to ensure their text isn't clipped out of the box, and that initial app layout is optimal for that first launch