MauiScrollView resets ContentOffset on first layout pass - fix #30453
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Pull Request Overview
This PR prevents MauiScrollView on iOS from inadvertently resetting its scroll position on the very first layout pass by adding an explicit check against _previousEffectiveUserInterfaceLayoutDirection.
- Introduces a guard so that on the initial layout pass (when
_previousEffectiveUserInterfaceLayoutDirectionisnull),ContentOffsetisn’t reset. - Ensures that on subsequent layout passes (when the layout direction is known), the old scroll offset logic still applies.
Comments suppressed due to low confidence (1)
src/Core/src/Platform/iOS/MauiScrollView.cs:67
- Consider adding a unit test to verify that on the initial layout pass (when
_previousEffectiveUserInterfaceLayoutDirectionis null) theContentOffsetremains unchanged, and that on subsequent passes it resets correctly.
else if (_previousEffectiveUserInterfaceLayoutDirection is not null)
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jsuarezruiz
reviewed
Jul 7, 2025
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Azure Pipelines successfully started running 3 pipeline(s). |
rmarinho
approved these changes
Jul 8, 2025
github-project-automation
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in MAUI SDK Ongoing
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@PureWeen do we want to backdoor this one? |
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AFAICT the scenario is a bit edge case that regressed |
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Note
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It would be very helpful if you could test the resulting artifacts from this PR and let us know in a comment if this change resolves your issue. Thank you!
Description of Change
@mjo151 could you please verify if this PR fixes your issue, since you did not provide your repro so that I can test it
https://github.com/dotnet/maui/wiki/Testing-PR-Builds
Issues Fixed
Fixes #30147