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[ios] Update the screen in didUpdateEffectiveGeometry - #195508
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This pull request adds support for responding to window scene geometry changes by implementing the windowScene:didUpdateEffectiveGeometry: delegate method across FlutterSceneLifeCycle, FlutterSceneDelegate, and associated tests. The feedback points out that the iOS availability checks incorrectly target iOS 26.0 instead of iOS 16.0, and recommends adding the API_AVAILABLE attribute to the implementation in FlutterSceneLifeCycle.mm. Additionally, a type mismatch in XCTAssertEqual within the tests should be resolved by comparing the array count to an integer literal instead of a double.
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…change (#14012) This accompanies this change: flutter/flutter#195508 On iPhone Duo, when switching between inner/outer screens, we want to make sure the display info is correctly updated to the dart side. ## Presubmit checklist - [x] If you are unwilling, or unable, to sign the CLA, even for a _tiny_, one-word PR, please file an issue instead of a PR. - [ ] If this PR is not meant to land until a future stable release, mark it as draft with an explanation. - [x] This PR follows the [Google Developer Documentation Style Guidelines](https://developers.google.com/style)—for example, it doesn't use _i.e._ or _e.g._, and it avoids _I_ and _we_ (first-person pronouns). - [ ] This PR uses [semantic line breaks](https://github.com/dart-lang/site-shared/blob/main/doc/writing-for-dart-and-flutter-websites.md#semantic-line-breaks) of 80 characters or fewer.
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Overall LGTM.
The Swift snippet in the PR description should probably have @available(iOS 26.0, *) just for completeness; no idea if anyone looks in there but sometimes we use them as a source for blog posts etc.
The comment on -[FlutterViewController updateEngineDisplays] from #195199 still says layout handles moving between the inner and outer displays. Can you update it here to point at the new check too?
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autosubmit label was removed for flutter/flutter/195508, because The base commit of the PR is older than 7 days and can not be merged. Please merge the latest changes from the main into this branch and resubmit the PR. |
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autosubmit label was removed for flutter/flutter/195508, because - The status or check suite ci.yaml validation has failed. Please fix the issues identified (or deflake) before re-applying this label.
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LGTM, but looks like presubmit is failing.
File an issue then kick off a re-run: |
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…13653) Manual roll Flutter from 9c427b5d7b1c to 1b9585481095 (32 revisions) Manual roll requested by [email protected] flutter/flutter@9c427b5...1b95854 2026-11-13 [email protected] Roll pub packages (flutter/flutter#196541) 2026-11-13 [email protected] Do not route PRs for review without cla, convert to draft (flutter/flutter#196341) 2026-11-13 [email protected] Roll Skia from d87a6c04da74 to 11f46cfe8838 (13 revisions) (flutter/flutter#196533) 2026-11-13 [email protected] [flutter_tools, flutter_test] Deprecate --experimental-faster-testing (flutter/flutter#196123) 2026-11-13 [email protected] [flutter_tools] Handle RPCError in ScreenshotCommand.runSkia (flutter/flutter#196132) 2026-11-13 [email protected] Roll Dart SDK from a8b961fd48bb to c91e8b6674e2 (2 revisions) (flutter/flutter#196502) 2026-11-13 [email protected] Roll Skia from 0c5ce4960cef to d87a6c04da74 (12 revisions) (flutter/flutter#196497) 2026-11-13 [email protected] Don't call `skia_image()` for raster-owned images in `DlImage::Equals` (flutter/flutter#196473) 2026-11-13 [email protected] [flutter_tools] Require FlutterCommandRunner DI fields and extract findCommandName (flutter/flutter#196331) 2026-11-13 [email protected] [web] Unify ui.Canvas behind a shared EngineCanvas frontend (flutter/flutter#196348) 2026-11-13 [email protected] Link to MediaQuery.displayFeaturesOf from DisplayFeatures (flutter/flutter#193728) 2026-11-13 [email protected] Removes reference to unnecessary ensureSemantics call in doc (flutter/flutter#195831) 2026-11-13 [email protected] [flutter_tools] Register trackWidgetCreation in AppleBuildOptionsBundle (flutter/flutter#196078) 2026-11-12 [email protected] [Android] Skip the HardwareBuffer defect fallback for platform views (flutter/flutter#193441) 2026-11-12 [email protected] Fix supports_decal check in framebuffer_blend.frag (flutter/flutter#196227) 2026-11-12 [email protected] [ios] Update the screen in didUpdateEffectiveGeometry (flutter/flutter#195508) 2026-11-12 [email protected] [flutter_tools] Add `Cache-Control` headers for web test assets (flutter/flutter#196414) 2026-11-12 [email protected] Roll Skia from 3b71ec08218f to 0c5ce4960cef (16 revisions) (flutter/flutter#196472) 2026-11-12 [email protected] [web] Render bounded ImageFilter.blur on wimp (flutter/flutter#196081) 2026-11-12 [email protected] Roll Dart SDK from 69567bd3c427 to a8b961fd48bb (2 revisions) (flutter/flutter#196464) 2026-11-12 [email protected] [engine] Release the Skia OpenGL resource context on shutdown (flutter/flutter#193592) 2026-11-12 [email protected] [web] Fix decoding of still AVIF images on Chrome (flutter/flutter#195958) 2026-11-12 [email protected] Gate SurfaceControl context setting on API 34+ (flutter/flutter#196394) 2026-11-12 [email protected] [flutter_tools] Only pass on a valid root tool in DASH__TOOL (flutter/flutter#196228) 2026-11-12 [email protected] Support GL_TEXTURE_EXTERNAL_OES embedder textures in Impeller (flutter/flutter#195857) 2026-11-12 [email protected] Stop building linux/wasm_release in local_engine_builds (flutter/flutter#196345) 2026-11-12 [email protected] Split flame out of Linux customer_testing (flutter/flutter#196347) 2026-11-12 Jiwon Lee [Windows] Fix Space input after Alt+Space with previous Microsoft IME (flutter/flutter#192105) 2026-11-12 [email protected] [flutter_tools] Add ToolExtensionException, exit() guard, graceful shutdown, and base modifiers (flutter/flutter#195908) 2026-11-12 [email protected] Roll Packages from 653628e to 14f9933 (9 revisions) (flutter/flutter#196450) 2026-11-12 [email protected] Roll Dart SDK from e5add7a25b32 to 69567bd3c427 (2 revisions) (flutter/flutter#196437) 2026-11-12 [email protected] Roll Skia from 9aa2513a4ac9 to 3b71ec08218f (1 revision) (flutter/flutter#196436) If this roll has caused a breakage, revert this CL and set the roller to dry run mode using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC [email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 ...
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This is a follow up to #195199
As discussed in this thread, For a fixed-size FlutterView,
viewDidLayoutSubviewsis called when switching from outer to inner display, but not called when switching from inner to outer display. This is a puzzling behavior (possibly a bug in UIKit), but it does prove that relying onviewDidLayoutSubviewsis not complete.The only API we can find that triggers when a scene changes screen is
didUpdateEffectiveGeometry. There won't be a breaking change, but it would requireFlutterSceneLifeCycleProviderusers to add a one-liner for this to work. We should update our website to include this (PR):Testing
I have manually verified with a fixed-size 300x300 FlutterView, and confirmed the information is correctly updated when switching screen.
It is not possible to write integration test - I don't think there's a
simctlsub-command that allows us to fold/unfold the simulator. We could add a integration test in the future if such api become available.Fixes #195177
If you had to change anything in the flutter/tests repo, include a link to the migration guide as per the breaking change policy.
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