Problem
When a List / Form is added inside a TabView and navigationTitle is set, then switching between tabs causes the navigation title to flicker.
Feedback:
FB21436493
Environment
Xcode: 26.2 (17C52)
iOS: 26.2 (23C55)
Reproducible on: Both simulator and device
Root cause
When List / Form is commented out, issue doesn't occur
Steps to Reproduce
Run app on iOS
Switch between tabs
Notice that the navigation title flickers
Code
ContentView
import SwiftUI
struct ContentView: View {
@State private var selectedTab = TabItem.red
var body: some View {
NavigationStack {
TabView(selection: $selectedTab) {
ForEach(TabItem.allCases, id: \.self) { tab in
Tab(tab.rawValue, systemImage: tab.systemImageName , value: tab) {
// Problem occurs with a List / Form
// Commenting out list works without flickering title
List {
Text(tab.rawValue)
}
}
}
}
.navigationTitle(selectedTab.rawValue)
}
}
}
TabItem
enum TabItem: String, CaseIterable {
case red
case green
case blue
var systemImageName: String {
switch self {
case .red:
"car"
case .green:
"leaf"
case .blue:
"bus"
}
}
}
Screen recording:
Topic:
UI Frameworks
SubTopic:
SwiftUI
3
0
306