[release/10.0.1xx-sr10] Fix Android root-page back handling - #37729
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Manual backport of dotnet#37709 for .NET MAUI 10.0.101. Source head: 270c687 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 1e7f77e3-4862-4b92-a662-d12b5918bb59
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🚀 Dogfood this PR with:
curl -fsSL https://github.com/@raw/dotnet/maui/main/eng/scripts/get-maui-pr.sh | bash -s -- 37729Or
iex "& { $(irm https://raw.githubusercontent.com/dotnet/maui/main/eng/scripts/get-maui-pr.ps1) } 37729" |
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Pull request overview
Fixes Android root-page back handling by detecting custom OnBackButtonPressed() overrides while preserving navigation behavior.
Changes:
- Detects and caches application-defined overrides.
- Updates Android back-handling logic.
- Adds unit and Android UI regression coverage.
Reviewed changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.
Show a summary per file
| File | Summary |
|---|---|
src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue37706.cs |
Adds Android back-button regression coverage. |
src/Controls/tests/TestCases.HostApp/Issues/Issue37706.cs |
Adds the regression test page. |
src/Controls/tests/Core.UnitTests/WindowsTests.cs |
Adds unit coverage. |
src/Controls/src/Core/Window/Window.cs |
Enables handling for custom back-button overrides. |
src/Controls/src/Core/Page/Page.cs |
Detects and caches custom overrides. |
PureWeen
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Aug 21, 2026
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Adversarial review
No actionable code defects were identified by the independent reviewer consensus at this exact head. Required CI checks are still pending, so this is a comment-only assessment and not an approval.
This was referenced Aug 22, 2026
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SR10.1 merge assessmentRecommendation: do not merge yet. Current head Some failures are clearly unrelated infrastructure/flakes: Windows Debug could not read Rerun the failed/canceled suites or obtain an explicit release-owner disposition for each before merge. Independent approval must come from a maintainer other than the PR author. |
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 1e7f77e3-4862-4b92-a662-d12b5918bb59
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…load (#37746) <!-- Please let the below note in for people that find this PR --> > [!NOTE] > Are you waiting for the changes in this PR to be merged? > It would be very helpful if you could [test the resulting artifacts](https://github.com/dotnet/maui/wiki/Testing-PR-Builds) from this PR and let us know in a comment if this change resolves your issue. Thank you! <!-- release-readiness-agent: human-approval-required --> ## Summary Integrates the staged **.NET MAUI 10.0.101 (SR10.1)** payload from `inflight/10.0.101` into `release/10.0.1xx-sr10`, based on the shipped `10.0.100` release. The full release inventory and servicing decisions are tracked in #37723. The [authoritative regression query](https://github.com/dotnet/maui/issues?q=repo%3Adotnet%2Fmaui%20is%3Aissue%20is%3Aopen%20%28label%3A%22regressed-in-10.0.10%22%20OR%20label%3A%22regressed-in-10.0.20%22%20OR%20label%3A%22regressed-in-10.0.30%22%20OR%20label%3A%22regressed-in-10.0.40%22%20OR%20label%3A%22regressed-in-10.0.50%22%20OR%20label%3A%22regressed-in-10.0.60%22%20OR%20label%3A%22regressed-in-10.0.70%22%20OR%20label%3A%22regressed-in-10.0.80%22%20OR%20label%3A%22regressed-in-10.0.90%22%20OR%20label%3A%22regressed-in-10.0.100%22%29) remains the source for the servicing-regression scope. > [!IMPORTANT] > Checked items under **Staged in this PR** are merged into `inflight/10.0.101`, not yet into `release/10.0.1xx-sr10`. They reach the release branch only when this aggregate PR is merged. ## Status at a glance - [x] Stage the selected regression backports independently on `inflight/10.0.101`. - [x] Stage the SkiaSharp 4.150.1 payload and selective `SKPath.AddCircle` compatibility fix. - [x] Stage the isolated iOS 26 Liquid Glass TabBar payload from #37542. - [ ] Complete or explicitly defer the six unresolved servicing regressions listed below. - [ ] Complete the release gates and merge this PR into `release/10.0.1xx-sr10`. ## Staged in this PR ### Servicing regressions - [x] #35826 — Android MediaPicker completion from child activities. Source #35944; component backport #37724. - [x] #36298 — Windows dynamic `ContentPresenter` assignment. Source #36430; component backport #37725. - [x] #36749 — preserve custom iOS Button styling. Source #36769; component backport #37726. - [x] #36736 — align Android SwipeItem content. Source #36820; component backport #37727. - [x] #34563 — per-edge iOS safe-area handling. Source #37033; component backport #37728. - [x] #37706 — Android root-page back handling. Source #37709; component backport #37729. - [x] #37705 — Android Material 3 status-bar contrast. Source #37710; component backport #37730. - [x] #37423 — restore native iOS 26 Liquid Glass TabBar behavior through the isolated four-file payload from merged PR #37542. - [x] #37418 — Android off-screen `TranslationY` layout padding. Source fix #37772; focused backport commit `10799e67df`. - [x] #37361 — iOS RefreshView pull-to-refresh with an empty CollectionView. Source fix #37404; focused backport commit `d26faa8e93`. - [x] #37638 — Android `Screenshot.CaptureAsync` synchronous UI-thread deadlock. Source fix #37680; focused backport commit `778040a233`. ### Planned Skia payload - [x] Port the Skia/Svg.Skia update from #36255 through component backport #37731. - [x] Include only the required `SKPath.AddCircle` compatibility change from #36787; exclude its unrelated SourceGen changes. - [x] Confirm a matching SkiaSharp 4.150.1 native-assets/PDB build for `_SkiaSharpNativeAssetsVersion`, or record an explicit release-owner waiver. ### Integration follow-ups - [x] Apply the aggregate review fixes for safe-area cache invalidation, Activity-for-result cancellation ownership, and Android theme-test semantics. - [x] Keep the final branch payload as focused release commits without unrelated `inflight/current` history. - [x] Validate the #37418 and #37638 focused Android UI tests on the aggregate branch (2/2 passed). - [ ] Validate the #37361 focused iOS UI test on the aggregate branch. ## Already present on the SR10 base — no new merge needed - [x] #36852 — Android Shell hidden-fragment leak; fix #36903 is already in SR10. - [x] #36735 — Android ActivityIndicator visibility; fix #36748 is already in SR10. - [x] #36853 — Android Shell DI-singleton route blank page; fix #36903 is already in SR10. - [x] #36942 — Android UI event handling; fix #36988 is already in SR10. - [x] #37281 — Android scrolling inside shadowed containers; backport #37312 is already in SR10. ## Completed disposition — no backport required - [x] #37700 — closed as intended SR10 `SwipeView.Threshold` behavior from #36878; any SwipeItem sizing concern should be tracked separately. ## Not included yet — merge, defer, or explicitly disposition before payload freeze - [ ] #35301 — Windows CollectionView applies WinUI styling by default; no linked fix PR. - [ ] #34491 — Android CollectionView selection with `PointerGestureRecognizer`; replacement fix #37952 remains draft against `main`. - [ ] #35059 — iOS app becomes unresponsive when opening a ComboBox dropdown in landscape; no linked fix PR. - [ ] #37407 — iOS TimePicker default `t` format forces en-US; fix #37797 remains draft against `main`. - [ ] #36269 — Android `SafeAreaEdges` with Shell tab navigation and hidden TabBar; source fix #36474 remains open against `main` and has no SR10 backport. - [ ] #37657 — Android Shell/root-page `OnBackButtonPressed()` in Release builds; no linked fix PR. ## Release completion ### Before merging this PR - [ ] Refresh the authoritative query and reconcile #37723 with its current results. - [ ] Record an include/defer/close decision for every unresolved regression above. - [ ] Validate every included regression on its reported OS/version using the `10.0.101` candidate packages. - [ ] Complete current-head aggregate CI and resolve or explicitly waive every required build/device/UI-test failure. - [ ] Resolve or waive the Skia native-assets/PDB release gate. - [ ] Bump `eng/Versions.props` from patch `100` to `101` after the payload is frozen. - [ ] Obtain the required independent current-head maintainer approvals. - [ ] Merge #37746 into `release/10.0.1xx-sr10`. ### After merge - [ ] Confirm BAR promotion and the per-build validation feed used by the ship assessment. - [ ] Publish and tag `10.0.101`. - [ ] Complete the Visual Studio insertion/default-MAUI-version update. ## Notes - No automated `/backport` command was used for this release payload. - Supersedes #37745, which GitHub automatically closed when the integration branch was renamed from `vs/10.0.101` to `inflight/10.0.101`.
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Are you waiting for the changes in this PR to be merged?
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!
Summary
Manual backport of #37709 to
release/10.0.1xx-sr10for .NET MAUI 10.0.101.270c68781cde6a407da439b3f550c4f3c0a07e55.inflight/currentfrom amain-based head and has not flowed tomain; this manual port excludes all unrelated branch-flow commits and files.Validation
3cf2fd29cb41073887e5ab06f21ad3774a0a177f.WindowsTestsControls unit tests pass.Review gate
This agent-authored release PR must remain unmerged until two distinct non-bot MAUI maintainers with write access, other than the PR author, approve the current head SHA.