Clarify route transition animations#186552
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This pull request enhances the documentation for PageRouteBuilder and RouteTransitionsBuilder by detailing the roles of the animation and secondaryAnimation parameters in route transitions and coordination. The review feedback recommends using square brackets for parameter references to ensure consistency with Flutter documentation standards and suggests providing more specific details regarding transition coordination methods.
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victorsanni
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autosubmit label was removed for flutter/flutter/186552, 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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flutter/flutter@e70534d...b05a9d7 2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from 47155534833e to d9d6b440c4e7 (1 revision) (flutter/flutter#187301) 2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from f93ed13d77fb to 47155534833e (4 revisions) (flutter/flutter#187291) 2026-05-29 kevmoo@users.noreply.github.com [web_ui] Optimize skwasm text layout and path decoding to eliminate dynamic boxing churn under Wasm (flutter/flutter#186978) 2026-05-29 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from SBpmmPxqx3lAvGojE... to jMR_VXQi07kAk8vbR... (flutter/flutter#187279) 2026-05-29 burak.karahan@mail.ru Remove Material import from sliver tree rendering test (flutter/flutter#187000) 2026-05-29 bdero@google.com [Impeller] Remove the y_coord_scale Y-flip plumbing (flutter/flutter#187224) 2026-05-29 31859944+LongCatIsLooong@users.noreply.github.com Add/remove overlay child RenderObject from the tree in `attach`/`detach` (flutter/flutter#186564) 2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from fcfe5975c945 to f93ed13d77fb (4 revisions) (flutter/flutter#187273) 2026-05-28 evanwall@buffalo.edu Handle complex RSE rendering in the uber SDF pipeline (flutter/flutter#186434) 2026-05-28 engine-flutter-autoroll@skia.org Roll Dart SDK from 082191101fcc to 683322426411 (2 revisions) (flutter/flutter#187270) 2026-05-28 mvincentong@gmail.com Clarify route transition animations (flutter/flutter#186552) 2026-05-28 116356835+AbdeMohlbi@users.noreply.github.com document that the default Key is null and explain proper usage in list diffing (flutter/flutter#185197) 2026-05-28 srawlins@google.com [flutter_tools] Use super parameters in missed spots (flutter/flutter#186197) 2026-05-28 mr_nadeem_iqbal@yahoo.com docs: Document MediaQueryData.alwaysUse24HourFormat on macOS, Windows, Linux, web (#160664) (flutter/flutter#186642) 2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from 5493e4c144cd to fcfe5975c945 (3 revisions) (flutter/flutter#187256) 2026-05-28 30870216+gaaclarke@users.noreply.github.com Shares opengles golden context (flutter/flutter#187243) 2026-05-28 jason-simmons@users.noreply.github.com Update the Curl CIPD package in .ci.yaml to version 8.20.0 (flutter/flutter#187133) 2026-05-28 737941+loic-sharma@users.noreply.github.com Improve SizedBox's docs (flutter/flutter#187208) 2026-05-28 bdero@google.com [Impeller] Support instanced rendering across all backends (flutter/flutter#186653) 2026-05-28 43054281+camsim99@users.noreply.github.com [Android] Reset system UI visibility flags when setting edge-to-edge mode (flutter/flutter#187207) 2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from a38708fb7926 to 5493e4c144cd (7 revisions) (flutter/flutter#187241) 2026-05-28 30870216+gaaclarke@users.noreply.github.com Turned on impeller by default on macos (flutter/flutter#186546) 2026-05-28 mvincentong@gmail.com Clarify lazy scroll extent docs (flutter/flutter#186864) 2026-05-28 mdebbar@google.com [web] Fix WebParagraph locales test (flutter/flutter#186813) 2026-05-28 engine-flutter-autoroll@skia.org Roll Packages from 4b424d7 to 10cbdc5 (3 revisions) (flutter/flutter#187238) 2026-05-28 engine-flutter-autoroll@skia.org Roll Dart SDK from f3db7b7d9801 to 082191101fcc (8 revisions) (flutter/flutter#187235) 2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from 32acea791248 to a38708fb7926 (1 revision) (flutter/flutter#187221) 2026-05-28 bdero@google.com [Flutter GPU] Add r32Float and remove Apple-only XR pixel formats (flutter/flutter#187069) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC boetger@google.com,stuartmorgan@google.com 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 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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…r#11803) flutter/flutter@e70534d...b05a9d7 2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from 47155534833e to d9d6b440c4e7 (1 revision) (flutter/flutter#187301) 2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from f93ed13d77fb to 47155534833e (4 revisions) (flutter/flutter#187291) 2026-05-29 kevmoo@users.noreply.github.com [web_ui] Optimize skwasm text layout and path decoding to eliminate dynamic boxing churn under Wasm (flutter/flutter#186978) 2026-05-29 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from SBpmmPxqx3lAvGojE... to jMR_VXQi07kAk8vbR... (flutter/flutter#187279) 2026-05-29 burak.karahan@mail.ru Remove Material import from sliver tree rendering test (flutter/flutter#187000) 2026-05-29 bdero@google.com [Impeller] Remove the y_coord_scale Y-flip plumbing (flutter/flutter#187224) 2026-05-29 31859944+LongCatIsLooong@users.noreply.github.com Add/remove overlay child RenderObject from the tree in `attach`/`detach` (flutter/flutter#186564) 2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from fcfe5975c945 to f93ed13d77fb (4 revisions) (flutter/flutter#187273) 2026-05-28 evanwall@buffalo.edu Handle complex RSE rendering in the uber SDF pipeline (flutter/flutter#186434) 2026-05-28 engine-flutter-autoroll@skia.org Roll Dart SDK from 082191101fcc to 683322426411 (2 revisions) (flutter/flutter#187270) 2026-05-28 mvincentong@gmail.com Clarify route transition animations (flutter/flutter#186552) 2026-05-28 116356835+AbdeMohlbi@users.noreply.github.com document that the default Key is null and explain proper usage in list diffing (flutter/flutter#185197) 2026-05-28 srawlins@google.com [flutter_tools] Use super parameters in missed spots (flutter/flutter#186197) 2026-05-28 mr_nadeem_iqbal@yahoo.com docs: Document MediaQueryData.alwaysUse24HourFormat on macOS, Windows, Linux, web (#160664) (flutter/flutter#186642) 2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from 5493e4c144cd to fcfe5975c945 (3 revisions) (flutter/flutter#187256) 2026-05-28 30870216+gaaclarke@users.noreply.github.com Shares opengles golden context (flutter/flutter#187243) 2026-05-28 jason-simmons@users.noreply.github.com Update the Curl CIPD package in .ci.yaml to version 8.20.0 (flutter/flutter#187133) 2026-05-28 737941+loic-sharma@users.noreply.github.com Improve SizedBox's docs (flutter/flutter#187208) 2026-05-28 bdero@google.com [Impeller] Support instanced rendering across all backends (flutter/flutter#186653) 2026-05-28 43054281+camsim99@users.noreply.github.com [Android] Reset system UI visibility flags when setting edge-to-edge mode (flutter/flutter#187207) 2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from a38708fb7926 to 5493e4c144cd (7 revisions) (flutter/flutter#187241) 2026-05-28 30870216+gaaclarke@users.noreply.github.com Turned on impeller by default on macos (flutter/flutter#186546) 2026-05-28 mvincentong@gmail.com Clarify lazy scroll extent docs (flutter/flutter#186864) 2026-05-28 mdebbar@google.com [web] Fix WebParagraph locales test (flutter/flutter#186813) 2026-05-28 engine-flutter-autoroll@skia.org Roll Packages from 4b424d7 to 10cbdc5 (3 revisions) (flutter/flutter#187238) 2026-05-28 engine-flutter-autoroll@skia.org Roll Dart SDK from f3db7b7d9801 to 082191101fcc (8 revisions) (flutter/flutter#187235) 2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from 32acea791248 to a38708fb7926 (1 revision) (flutter/flutter#187221) 2026-05-28 bdero@google.com [Flutter GPU] Add r32Float and remove Apple-only XR pixel formats (flutter/flutter#187069) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC boetger@google.com,stuartmorgan@google.com 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 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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Issue: fixes flutter#23206 The `PageRouteBuilder` and `RouteTransitionsBuilder` docs pointed readers to `ModalRoute.buildTransitions`, but the callback docs themselves did not explain the practical difference between the primary `animation` and `secondaryAnimation` parameters. Fix: Clarify that `animation` drives the route's own push/pop transition, while `secondaryAnimation` lets the route coordinate with a route pushed above it. The docs now also mention that `secondaryAnimation` only runs when the adjacent routes allow transition coordination through `canTransitionTo`/`canTransitionFrom`. Tests: - `./bin/dart format --output=none --set-exit-if-changed packages/flutter/lib/src/widgets/routes.dart packages/flutter/lib/src/widgets/pages.dart` - `./bin/flutter analyze packages/flutter/lib/src/widgets/routes.dart packages/flutter/lib/src/widgets/pages.dart` - `git diff --check` Risk: Docs-only change in two route API comments. No runtime behavior changes.
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Issue: fixes #23206
The
PageRouteBuilderandRouteTransitionsBuilderdocs pointed readers toModalRoute.buildTransitions, but the callback docs themselves did not explain the practical difference between the primaryanimationandsecondaryAnimationparameters.Fix:
Clarify that
animationdrives the route's own push/pop transition, whilesecondaryAnimationlets the route coordinate with a route pushed above it. The docs now also mention thatsecondaryAnimationonly runs when the adjacent routes allow transition coordination throughcanTransitionTo/canTransitionFrom.Tests:
./bin/dart format --output=none --set-exit-if-changed packages/flutter/lib/src/widgets/routes.dart packages/flutter/lib/src/widgets/pages.dart./bin/flutter analyze packages/flutter/lib/src/widgets/routes.dart packages/flutter/lib/src/widgets/pages.dartgit diff --checkRisk:
Docs-only change in two route API comments. No runtime behavior changes.