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This is my attempt to handle #6537 for the DropdownButtonFormField widget.

@github-actions github-actions bot added framework flutter/packages/flutter repository. See also f: labels. f: material design flutter/packages/flutter/material repository. labels Sep 4, 2025
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Code Review

This pull request adds a new widget test for DropdownButtonFormField. The test ensures that the widget does not crash when rendered in a zero-sized area, which is a valuable edge case to cover. My feedback focuses on enhancing the test coverage to also include the scenario described in the linked issue, where a crash occurs upon opening the dropdown menu within a container with unconstrained height, like a ListView.

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Checklist:

  • The test is in the correct file
  • The test name goes “does not crash at zero area”
  • The target widget is wrapped by Center (or is fullscreen)
  • The target widget does not have an overlay, or the overlay is tested
  • The target widget is expected to have a size of exactly Size.zero

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LGTM as well!

@MitchellGoodwin MitchellGoodwin added the autosubmit Merge PR when tree becomes green via auto submit App label Sep 24, 2025
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auto-submit bot commented Sep 24, 2025

autosubmit label was removed for flutter/flutter/174958, 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.

@dkwingsmt dkwingsmt added the autosubmit Merge PR when tree becomes green via auto submit App label Sep 24, 2025
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auto-submit bot commented Sep 24, 2025

autosubmit label was removed for flutter/flutter/174958, because - The status or check suite Linux web_skwasm_tests_3 has failed. Please fix the issues identified (or deflake) before re-applying this label.

@dkwingsmt dkwingsmt force-pushed the handle#6537-DropdownButtonFormField branch from d2442ed to 4541db7 Compare October 8, 2025 23:19
@dkwingsmt dkwingsmt added the autosubmit Merge PR when tree becomes green via auto submit App label Oct 8, 2025
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auto-submit bot commented Oct 8, 2025

autosubmit label was removed for flutter/flutter/174958, because - The status or check suite Google testing has failed. Please fix the issues identified (or deflake) before re-applying this label.

@auto-submit auto-submit bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Oct 8, 2025
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auto-submit bot commented Oct 9, 2025

autosubmit label was removed for flutter/flutter/174958, because Pull request flutter/flutter/174958 is not in a mergeable state.

@dkwingsmt dkwingsmt added the autosubmit Merge PR when tree becomes green via auto submit App label Oct 10, 2025
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Merged via the queue into flutter:master with commit b402dfa Oct 10, 2025
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…10229)

Manual roll Flutter from e11e2c11288b to 7cd821c21093 (73 revisions)

Manual roll requested by [email protected]

flutter/flutter@e11e2c1...7cd821c

2025-10-14 [email protected] Fix computeDistanceToActualBaseline throws when accessing child size (flutter/flutter#176906)
2025-10-14 [email protected] iOS can set application locale before view controller is set (flutter/flutter#176592)
2025-10-14 [email protected] Roll ANGLE to a branch based on d9fa255a5c22 (flutter/flutter#176747)
2025-10-14 [email protected] Relands "Fixes keyboard selects disabled radio" (flutter/flutter#176977)
2025-10-14 [email protected] Fix expansion tile is missing state announcement on non-Apple platforms (flutter/flutter#175480)
2025-10-14 [email protected] impeller: allows access of float uniforms by name (flutter/flutter#176728)
2025-10-14 [email protected] Roll dart sdk to 3.11.0-17.0.dev (flutter/flutter#176947)
2025-10-13 [email protected] Move iOS integration tests (flutter/flutter#176940)
2025-10-13 [email protected] Make sure that an InputDatePickerFormField doesn't crash in 0x0 envir… (flutter/flutter#176047)
2025-10-13 [email protected] [web] Match the behavior of other platforms in Web Locale.toString if the country code is an empty string (flutter/flutter#176862)
2025-10-13 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Fixes keyboard selects disabled radio (#176727)" (flutter/flutter#176958)
2025-10-13 [email protected] Fixes keyboard selects disabled radio (flutter/flutter#176727)
2025-10-13 [email protected] Roll Packages from e319c40 to d062181 (2 revisions) (flutter/flutter#176916)
2025-10-13 [email protected] Roll SwiftShader to 794b0cfce1d8 (flutter/flutter#176806)
2025-10-13 [email protected] Make DropdownMenu generic type non nullable (flutter/flutter#176711)
2025-10-12 [email protected] Roll Fuchsia Linux SDK from BWGpRvpdQh-HJpq1c... to _dd0Jv50H0oUI2Ad8... (flutter/flutter#176895)
2025-10-11 [email protected] Roll Fuchsia Linux SDK from JpiUsek1hU5r9QVKP... to BWGpRvpdQh-HJpq1c... (flutter/flutter#176880)
2025-10-11 [email protected] fix: content hash check for LUCI_CONTEXT (flutter/flutter#176867)
2025-10-11 [email protected] Feat: make tooltip position customizeable (flutter/flutter#175047)
2025-10-11 [email protected] Roll Dart SDK from d88d8bf2b53c to 65b171958c93 (3 revisions) (flutter/flutter#176871)
2025-10-11 [email protected] feat: apply radioGroup role to segmented control widgets (flutter/flutter#176157)
2025-10-10 [email protected] Make sure that a CheckboxMenuButton doesn't crash in 0x0 environment (flutter/flutter#176450)
2025-10-10 [email protected] [WebParagraph] Support for more styles, placeholders, decorations, etc (flutter/flutter#172853)
2025-10-10 [email protected] Set up a version of build_ios_framework_module_test that only runs on x64 machines and extend its timeout (flutter/flutter#176811)
2025-10-10 [email protected] Roll Packages from 0b41de3 to e319c40 (1 revision) (flutter/flutter#176833)
2025-10-10 [email protected] [tool/dap] Forward app.warning events from Flutter to DAP client (flutter/flutter#176827)
2025-10-10 [email protected] Roll Dart SDK from 70c00d3ceb3a to d88d8bf2b53c (1 revision) (flutter/flutter#176830)
2025-10-10 [email protected] Remove unnecessary nullable types in examples. (flutter/flutter#176713)
2025-10-10 [email protected] Roll Fuchsia Linux SDK from xArtL4DH0FsdwSqG_... to JpiUsek1hU5r9QVKP... (flutter/flutter#176822)
2025-10-10 [email protected] Cleanup OutlinedButton.icon documentation and implementation (flutter/flutter#176630)
2025-10-10 [email protected] [HCPP] Properly remove hcpp views that are no longer visible (flutter/flutter#176742)
2025-10-10 [email protected] Make sure that an InputChip doesn't crash in 0x0 environment (flutter/flutter#175930)
2025-10-10 [email protected] Update Flutter templates' Dart style (flutter/flutter#175963)
2025-10-10 [email protected] Make sure that a DropdownButtonFormField doesn't crash in 0x0 environ… (flutter/flutter#174958)
2025-10-10 [email protected] Make sure that an InkWell doesn't crash in 0x0 environment (flutter/flutter#175871)
2025-10-10 [email protected] Handle#6537 end drawer button (flutter/flutter#173026)
2025-10-10 [email protected] Roll Dart SDK from a9b7bd4b0b32 to 70c00d3ceb3a (4 revisions) (flutter/flutter#176815)
2025-10-10 [email protected] Change default Linux thread policy to merge platform and UI threads. (flutter/flutter#176759)
2025-10-09 [email protected] [ Tool ] Roll package:dwds to 26.0.0 (flutter/flutter#176808)
2025-10-09 [email protected] Update `CHANGELOG` to include 3.35.6 notes (flutter/flutter#176803)
2025-10-09 [email protected] Announce text and button together when DropdownMenu is treated as a button (flutter/flutter#176428)
2025-10-09 [email protected] [native_assets] create macOS CCompilerConfig via xcrun --find (flutter/flutter#175717)
2025-10-09 [email protected] [Impeller] Fix broken links in README. (flutter/flutter#176770)
2025-10-09 [email protected] Fix links to Custom Flutter Engine Embedders in README. (flutter/flutter#175807)
...
reidbaker pushed a commit to AbdeMohlbi/flutter that referenced this pull request Dec 10, 2025
flutter#174958)

This is my attempt to handle
flutter#6537 for the
DropdownButtonFormField widget.

Co-authored-by: Tong Mu <[email protected]>
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