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Fix for NavigationPage.TitleView does not expand with host window in iPadOS 26+ #33088

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Merged
jfversluis merged 6 commits into from
Feb 24, 2026
Merged

Fix for NavigationPage.TitleView does not expand with host window in iPadOS 26+ #33088

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f4bad65
Update NavigationRenderer.cs
SuthiYuvaraj Nov 25, 2025
550938a
testcases
SuthiYuvaraj Dec 9, 2025
fc4fffa
Testcases already added
SuthiYuvaraj Dec 10, 2025
bd2a145
Testcases already added
SuthiYuvaraj Dec 10, 2025
072ef67
Merge branch 'fix-32722' of https://github.com/SuthiYuvaraj/maui into…
SuthiYuvaraj Feb 9, 2026
9d67ddf
Update NavigationRenderer.cs
SuthiYuvaraj Feb 17, 2026
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16 changes: 16 additions & 0 deletions src/Controls/src/Core/Compatibility/Handlers/NavigationPage/iOS/NavigationRenderer.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1602,12 +1602,28 @@ UIImage GetEmptyBackIndicatorImage()
return empty;
}

/// <summary>
/// Called when the view controller's view transitions to a new size.
/// On iPad iOS 26+, manually updates TitleView frame to handle Stage Manager window resizing.
/// </summary>
public override void ViewWillTransitionToSize(SizeF toSize, IUIViewControllerTransitionCoordinator coordinator)
{
base.ViewWillTransitionToSize(toSize, coordinator);

if (UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Pad)
{
UpdateLeftBarButtonItem();

// For iOS 26+, force TitleView to re-layout on window size changes (iPad Stage Manager, multitasking)
// Complements TraitCollectionDidChange handling (device rotation) added in #32815
if (OperatingSystem.IsIOSVersionAtLeast(26) || OperatingSystem.IsMacCatalystVersionAtLeast(26))
{
coordinator.AnimateAlongsideTransition(_ =>
{
UpdateTitleViewFrameForOrientation();
}, null);
}
}
}

public override void TraitCollectionDidChange(UITraitCollection previousTraitCollection)
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