[iOS] SwipeView Closes when Content Changes - fix

[kubaflo]

Issues Fixed

Fixes #29086

Before	After
Screen.Recording.2025-04-19.at.21.31.37.mov	Screen.Recording.2025-04-19.at.21.30.32.mov

[Copilot]

Pull Request Overview

This PR fixes an issue where the SwipeView unexpectedly closes when its content changes on iOS. It implements a layout adjustment to reapply the swipe state, refactors the animation logic, and adds tests to verify the behavior.

• Update MauiSwipeView to reapply swipe state during layout.
• Refactor the swipe animation by extracting the frame-setting logic.
• Add corresponding UI and automated tests for Issue29086.

Reviewed Changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
src/Core/src/Platform/iOS/MauiSwipeView.cs	Adjusts layout and swipe animation logic to maintain the open state
src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue29086.cs	Introduces a test case verifying that the SwipeView remains open
src/Controls/tests/TestCases.HostApp/Issues/Issue29086.xaml.cs	Adds UI for the test case

Files not reviewed (1)

• src/Controls/tests/TestCases.HostApp/Issues/Issue29086.xaml: Language not supported

Comments suppressed due to low confidence (2)

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue29086.cs:24

• [nitpick] Consider augmenting the screenshot verification with explicit assertions on the SwipeView state to better capture the intended non-closing behavior.

VerifyScreenshot();

src/Core/src/Platform/iOS/MauiSwipeView.cs:84

• Calling Swipe(animated: false) from within LayoutSubviews could potentially trigger repeated layout passes. Please verify that this invocation does not lead to unintended recursive layout updates.

if (_isOpen)

[jsuarezruiz]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 3 pipeline(s).

[jsuarezruiz]

LGTM, just trigger a build. Pending test snapshots in all the platforms.

[darrabam]

what’s the status of this? will the fix be rolled out in the coming release?

[darrabam]

@jfversluis could you please spare sometime to review and approve this?

[jfversluis]

/azp run MAUI-public

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[jfversluis]

@darrabam would you be able to test the result of this build following these instructions? https://github.com/dotnet/maui/wiki/Testing-PR-Builds

[darrabam]

@darrabam would you be able to test the result of this build following these instructions? https://github.com/dotnet/maui/wiki/Testing-PR-Builds

I haven’t tested it since the video above confirms the the fix, but sure I’ll give it a try following the instructions and test it on some edge cases too.

Thanks for pointing out the testing instructions!

[darrabam]

@kubaflo Thank you very much for the fix, it resolves the issue for Left & Top items, but not for Right & Bottom. I've updated the sample for you to test with:
https://github.com/darrabam/SwipeViewBugMAUI

2025-06-23-17-53-01.mp4

[kubaflo]

@darrabam Thanks for letting me know! You're right. Here's a fix: #30182