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[cupertino_ui] Fix CupertinoMagnifier focalPointOffset animation scaling - #13118

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auto-submit[bot] merged 5 commits into
flutter:mainfrom
Mairramer:fix-cupertino-magnifier-focal-point
Oct 16, 2026
Merged

auto-submit[bot] merged 5 commits into
flutter:mainfrom
Mairramer:fix-cupertino-magnifier-focal-point

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Fixes flutter/flutter#193767

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@flutter-dashboard flutter-dashboard Bot added the CICD Run CI/CD label Oct 3, 2026
@github-actions github-actions Bot added p: cupertino_ui triage-design Should be looked at in design triage labels Oct 3, 2026

@gemini-code-assist gemini-code-assist Bot left a comment

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Code Review

This pull request refactors the focal point offset calculation in CupertinoMagnifier to correctly scale with the animation value, adds a widget test to verify this behavior, and includes a changelog entry. Review feedback suggests optimizing the offset calculation by constructing the final Offset directly to avoid intermediate object allocations.

@Mairramer
Mairramer requested a review from Piinks October 4, 2026 16:28
@QuncCccccc
QuncCccccc requested a review from dkwingsmt October 6, 2026 20:53

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LGTM thank you!

@Mairramer
Mairramer requested a review from dkwingsmt October 15, 2026 19:30

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LGTM. Thank you!

@dkwingsmt dkwingsmt added the autosubmit Merge PR when tree becomes green via auto submit App label Oct 16, 2026
@auto-submit
auto-submit Bot merged commit 8d1c565 into flutter:main Oct 16, 2026
13 checks passed
opensource-fork-sync Bot pushed a commit to cla7aye15I4nd/opensource-flutter__flutter that referenced this pull request Oct 19, 2026
flutter/packages@93eede7...10a178c

2026-10-19 [email protected] [material_ui]
Fixes SearchAnchor and SearchBar semantics (flutter/packages#12680)
2026-10-17 [email protected] [shared_preferences] switch to ffi/jni
pigeon (flutter/packages#12329)
2026-10-17 [email protected]
[in_app_purchase_storekit] Add show manage subscriptions path
(flutter/packages#12454)
2026-10-17 [email protected] [material_ui] Fix installing command
material UI (flutter/packages#13135)
2026-10-16 [email protected] [file_selector_ios] Drop deprecated
UIDocumentPickerMode code path (flutter/packages#13292)
2026-10-16 [email protected] [camera_avfoundation] Fixes sendability
mismatch in completion handler (flutter/packages#13298)
2026-10-16 [email protected] [local_auth_darwin] Fix Swift 6 concurrency
analyzer errors from lifecycle delegate methods (flutter/packages#13296)
2026-10-16 [email protected] [pointer_interceptor_ios] Use 'let' for
unmutated var (flutter/packages#13297)
2026-10-16 [email protected] [image_picker_ios] Fix Swift warnings in
ImagePickerPluginTests (flutter/packages#13299)
2026-10-16 [email protected] [camera]delete
fake bitrate/fps integration tests (flutter/packages#13291)
2026-10-16 [email protected] [google_maps_flutter_ios] Use 'let' for
unmutated var (flutter/packages#13300)
2026-10-16 [email protected] [VPAT] Declare input purpose on
a11y_assessments text fields (flutter/packages#13243)
2026-10-16 [email protected] [cupertino_ui]
Fix CupertinoMagnifier focalPointOffset animation scaling
(flutter/packages#13118)
2026-10-16 [email protected] [tool] Exempt `test_apps/` from version
and changelog checks (flutter/packages#13255)
2026-10-16 [email protected] [material_ui] Fallback theme
follows platform cherry pick (flutter/packages#13278)
2026-10-16 [email protected] Roll Flutter from
5c7e45a to a3d71d8 (26 revisions) (flutter/packages#13290)
2026-10-16 [email protected] [camera]do not
sleep to avoid hang due to merged thread (flutter/packages#13289)
2026-10-16 [email protected] [camera]fix
camera failure due to wrong jpg extension (flutter/packages#13285)

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-flutter-autoroll
Please CC [email protected] on the revert to ensure that a
human
is aware of the problem.

To file a bug in Flutter:
https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
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Documentation for the AutoRoller is here:
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suryaKommana2662 pushed a commit to suryaKommana2662/flutter that referenced this pull request Oct 29, 2026
flutter/packages@93eede7...10a178c

2026-10-19 [email protected] [material_ui]
Fixes SearchAnchor and SearchBar semantics (flutter/packages#12680)
2026-10-17 [email protected] [shared_preferences] switch to ffi/jni
pigeon (flutter/packages#12329)
2026-10-17 [email protected]
[in_app_purchase_storekit] Add show manage subscriptions path
(flutter/packages#12454)
2026-10-17 [email protected] [material_ui] Fix installing command
material UI (flutter/packages#13135)
2026-10-16 [email protected] [file_selector_ios] Drop deprecated
UIDocumentPickerMode code path (flutter/packages#13292)
2026-10-16 [email protected] [camera_avfoundation] Fixes sendability
mismatch in completion handler (flutter/packages#13298)
2026-10-16 [email protected] [local_auth_darwin] Fix Swift 6 concurrency
analyzer errors from lifecycle delegate methods (flutter/packages#13296)
2026-10-16 [email protected] [pointer_interceptor_ios] Use 'let' for
unmutated var (flutter/packages#13297)
2026-10-16 [email protected] [image_picker_ios] Fix Swift warnings in
ImagePickerPluginTests (flutter/packages#13299)
2026-10-16 [email protected] [camera]delete
fake bitrate/fps integration tests (flutter/packages#13291)
2026-10-16 [email protected] [google_maps_flutter_ios] Use 'let' for
unmutated var (flutter/packages#13300)
2026-10-16 [email protected] [VPAT] Declare input purpose on
a11y_assessments text fields (flutter/packages#13243)
2026-10-16 [email protected] [cupertino_ui]
Fix CupertinoMagnifier focalPointOffset animation scaling
(flutter/packages#13118)
2026-10-16 [email protected] [tool] Exempt `test_apps/` from version
and changelog checks (flutter/packages#13255)
2026-10-16 [email protected] [material_ui] Fallback theme
follows platform cherry pick (flutter/packages#13278)
2026-10-16 [email protected] Roll Flutter from
5c7e45a to a3d71d8 (26 revisions) (flutter/packages#13290)
2026-10-16 [email protected] [camera]do not
sleep to avoid hang due to merged thread (flutter/packages#13289)
2026-10-16 [email protected] [camera]fix
camera failure due to wrong jpg extension (flutter/packages#13285)

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-flutter-autoroll
Please CC [email protected] on the revert to ensure that a
human
is aware of the problem.

To file a bug in Flutter:
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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[cupertino_ui] CupertinoMagnifier inOutAnimation scale is ignored due to Offset immutability

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