Remove unnecessary nullable types in examples. #176713
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It looks like this pull request may not have tests. Please make sure to add tests or get an explicit test exemption before merging. If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix? Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing. If you believe this PR qualifies for a test exemption, contact "@test-exemption-reviewer" in the #hackers channel in Discord (don't just cc them here, they won't see it!). The test exemption team is a small volunteer group, so all reviewers should feel empowered to ask for tests, without delegating that responsibility entirely to the test exemption group. |
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This pull request correctly removes unnecessary nullable types from onChanged callbacks in several examples, which improves code clarity and aligns with best practices. I've found one area where the implementation can be further improved for better readability and adherence to idiomatic Dart/Flutter code.
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test-exempt: code refactor with no semantic change |
dkwingsmt
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LGTM! (I'm surprised that these files compile at all)
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@dkwingsmt, me either. Thanks a lot for the review! According to the Gemini:
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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. 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(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) ...
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### Description - Removes unnecessary `bool?` usage in examples ## Pre-launch Checklist - [X] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [X] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [X] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [X] I signed the [CLA]. - [ ] I listed at least one issue that this PR fixes in the description above. - [ ] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [X] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [X] All existing and new tests are passing. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
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Description
bool?usage in examplesPre-launch Checklist
///).