Hello!
The minimize behavior was working correctly while I was using Xcode 26 beta 4 with iOS 26 beta 4 simulator — when scrolling down, the Tab Bar would minimize as expected.
However, after upgrading both Xcode and iOS simulator to beta 5, the tabBarMinimizeBehavior setting no longer has any visible effect — the Tab Bar stays fixed in place.
Code snippet:
if #available(iOS 26.0, *) {
self.tabBarMinimizeBehavior = .onScrollDown
}
Steps to reproduce:
1. Create a UITabBarController with at least one tab containing a scrollable view (e.g., UITableView).
2. In viewDidLoad, set tabBarMinimizeBehavior to .onScrollDown.
3. Run on iOS 26 beta 5 simulator.
Expected behavior (beta 4): Scrolling down hides/minimizes the Tab Bar with animation.
Actual behavior (beta 5): Tab Bar remains fixed; no minimize animation is triggered.
Environment:
• Xcode 26 beta 5 (Build: 17A5295f)
• iOS 26 beta 5 simulator (Build: 1055) – iPhone 16 Pro
• Also tested on iPhone 13 mini – iOS 26 (Build: 23A5308g)
