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Migrate to null aware elements - Part 3 #172307

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@jamilsaadeh97 jamilsaadeh97 commented Jul 17, 2025 •
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Replace null checks with null aware elements - part 3

Part of #172188

Pre-launch Checklist

If you need help, consider asking for advice on the #hackers-new channel on Discord.

@jamilsaadeh97 jamilsaadeh97 requested a review from a team as a code owner July 17, 2025 19:55
@github-actions github-actions bot added tool Affects the "flutter" command-line tool. See also t: labels. team-android Owned by Android platform team labels Jul 17, 2025
@jamilsaadeh97 jamilsaadeh97 force-pushed the null_aware_elements_3 branch from 6f07700 to ea3d691 Compare July 17, 2025 22:32
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These LGTM! Thanks for the clean up :)

@camsim99 camsim99 requested a review from a team July 21, 2025 15:58
@jamilsaadeh97 jamilsaadeh97 force-pushed the null_aware_elements_3 branch from 9e547cb to 181545a Compare July 24, 2025 23:01
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Migrate to null aware elements - Part 3 (flutter#172307)
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Replace null checks with null aware elements - part 3

Part of flutter#172188

## 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].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- Links -->
[Contributor Guide]:
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Roll Flutter from 20788c07fcb8 to cfbaa18bdecc (43 revisions) (#9688)
10b3d18 
Roll Flutter from 20788c07fcb8 to cfbaa18bdecc (43 revisions)

flutter/flutter@20788c0...cfbaa18

2025-07-28 [email protected] Remove shortner (flutter/flutter#172844)
2025-07-28 [email protected] Update `flutter pub get` to use `flutter.version.json` (instead of `version`) (flutter/flutter#172798)
2025-07-27 [email protected] Roll Fuchsia Linux SDK from i7RS-4iBtdndwa3Jy... to tK_PAaLeo0pUxi8hv... (flutter/flutter#172827)
2025-07-26 [email protected] Roll Fuchsia Linux SDK from 4IewCwqcEm7r4QsXd... to i7RS-4iBtdndwa3Jy... (flutter/flutter#172808)
2025-07-26 98614782+auto-submit[bot]@users.noreply.github.com Reverts "fix: get content hash for master on local engine branches (#172792)" (flutter/flutter#172805)
2025-07-26 [email protected] fix: build size_exp artifacts in post (flutter/flutter#172802)
2025-07-26 [email protected] fix: get content hash for master on local engine branches (flutter/flutter#172792)
2025-07-25 [email protected] Update `main`/`master` repoExceptions analysis set (flutter/flutter#172796)
2025-07-25 [email protected] Remove deprecated `--[no-]-disable-dds` (flutter/flutter#172791)
2025-07-25 [email protected] `last_engine_commit.ps1`: Use `$flutterRoot` instead of `$gitTopLevel` (flutter/flutter#172786)
2025-07-25 [email protected] Check file contents, remove tests that are now invalid (`: 'none'`) (flutter/flutter#172788)
2025-07-25 [email protected] windows: allow pwsh.bat wrapper (flutter/flutter#171778)
2025-07-25 [email protected] [Impeller] Log glCheckFrameBufferStatus output when it fails in blit pass. (flutter/flutter#172592)
2025-07-25 [email protected] Remove deprecated `AssetManifest.json` file (flutter/flutter#172594)
2025-07-25 [email protected] Refactor `verifyVersion` into typed `Version` object, use it (flutter/flutter#172780)
2025-07-25 [email protected] Bump the customer tests to pick up an update to Zulip's tests, for th… (flutter/flutter#172733)
2025-07-25 [email protected] Rename `AppRunLogger`, stop writing status messages that break JSON (flutter/flutter#172591)
2025-07-25 [email protected] Add `--dart-define`, `-D` to `assemble`, deprecate `--define`, `-d`. (flutter/flutter#172510)
2025-07-25 [email protected] Fix previous text input connection interrupts enter/space (flutter/flutter#171973)
2025-07-25 [email protected] Update CHANGELOG.md for 3.32.8 (flutter/flutter#172779)
2025-07-25 [email protected] Fix an `omit-type` lint that is breaking the tree (flutter/flutter#172776)
2025-07-25 [email protected] feat(tool): Respect user-data-dir flag from web-browser-flag (flutter/flutter#169445)
2025-07-25 [email protected] [web] Fix empty first frame in multiview mode (flutter/flutter#172493)
2025-07-25 [email protected] Migrate to null aware elements - Part 3 (flutter/flutter#172307)
2025-07-25 [email protected] Update few links in docs (flutter/flutter#172166)
2025-07-25 [email protected] Roll Skia from 768ace3fd144 to 409e1c7ba09b (1 revision) (flutter/flutter#172745)
2025-07-25 [email protected] Roll Fuchsia Linux SDK from a_55b5hqpRnigzuNC... to 4IewCwqcEm7r4QsXd... (flutter/flutter#172742)
2025-07-25 [email protected] Roll Skia from 094ac350125f to 768ace3fd144 (18 revisions) (flutter/flutter#172735)
2025-07-25 [email protected] Remove 2023 deprecated `'platforms'` key from daemon output (flutter/flutter#172593)
2025-07-24 [email protected] Manual roll of Dart from 26dece893751 to 5ede85aff798 (flutter/flutter#172731)
2025-07-24 [email protected] 169108 ci debug (flutter/flutter#172589)
2025-07-24 [email protected] Improve assertion message in `_MixedBorderRadius.resolve()` (flutter/flutter#172100)
2025-07-24 [email protected] Make sure that a BottomAppBar doesn't crash in 0x0 environment (flutter/flutter#172097)
2025-07-24 [email protected] Handle#6537 bottom navigation bar (flutter/flutter#172404)
2025-07-24 [email protected] Make sure that a MaterialBanner doesn't crash in 0x0 environment (flutter/flutter#172074)
2025-07-24 [email protected] Remove support for `pluginClass: none` (on `master`; `> 3.35.0`) (flutter/flutter#172579)
2025-07-24 [email protected] Make sure that a Card doesn't crash in 0x0 environment (flutter/flutter#172373)
2025-07-24 [email protected] Make sure that an AboutDialog doesn't crash in 0x0 environment (flutter/flutter#172444)
2025-07-24 [email protected] Make sure that an ActionChip doesn't crash in 0x0 environment (flutter/flutter#172684)
2025-07-24 [email protected] Delete (unused) `dev/checks_tool` directory (flutter/flutter#172715)
2025-07-24 [email protected] [Android] Add missing ci configuration for `Linux android_java17_tool_integration_tests` (flutter/flutter#172702)
2025-07-24 [email protected] Flutter-Cherrypick-Process.md - Spell cherry-pick consistently (flutter/flutter#172697)
2025-07-24 [email protected] Bringup `linux_web_engine_tests`; failing 4+ times in a row (flutter/flutter#172714)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
...
vashworth pushed a commit to vashworth/packages that referenced this pull request Jul 30, 2025
@engine-flutter-autoroll @vashworth
Roll Flutter from 20788c07fcb8 to cfbaa18bdecc (43 revisions) (flutte…
cda2346 
…r#9688)

Roll Flutter from 20788c07fcb8 to cfbaa18bdecc (43 revisions)

flutter/flutter@20788c0...cfbaa18

2025-07-28 [email protected] Remove shortner (flutter/flutter#172844)
2025-07-28 [email protected] Update `flutter pub get` to use `flutter.version.json` (instead of `version`) (flutter/flutter#172798)
2025-07-27 [email protected] Roll Fuchsia Linux SDK from i7RS-4iBtdndwa3Jy... to tK_PAaLeo0pUxi8hv... (flutter/flutter#172827)
2025-07-26 [email protected] Roll Fuchsia Linux SDK from 4IewCwqcEm7r4QsXd... to i7RS-4iBtdndwa3Jy... (flutter/flutter#172808)
2025-07-26 98614782+auto-submit[bot]@users.noreply.github.com Reverts "fix: get content hash for master on local engine branches (#172792)" (flutter/flutter#172805)
2025-07-26 [email protected] fix: build size_exp artifacts in post (flutter/flutter#172802)
2025-07-26 [email protected] fix: get content hash for master on local engine branches (flutter/flutter#172792)
2025-07-25 [email protected] Update `main`/`master` repoExceptions analysis set (flutter/flutter#172796)
2025-07-25 [email protected] Remove deprecated `--[no-]-disable-dds` (flutter/flutter#172791)
2025-07-25 [email protected] `last_engine_commit.ps1`: Use `$flutterRoot` instead of `$gitTopLevel` (flutter/flutter#172786)
2025-07-25 [email protected] Check file contents, remove tests that are now invalid (`: 'none'`) (flutter/flutter#172788)
2025-07-25 [email protected] windows: allow pwsh.bat wrapper (flutter/flutter#171778)
2025-07-25 [email protected] [Impeller] Log glCheckFrameBufferStatus output when it fails in blit pass. (flutter/flutter#172592)
2025-07-25 [email protected] Remove deprecated `AssetManifest.json` file (flutter/flutter#172594)
2025-07-25 [email protected] Refactor `verifyVersion` into typed `Version` object, use it (flutter/flutter#172780)
2025-07-25 [email protected] Bump the customer tests to pick up an update to Zulip's tests, for th… (flutter/flutter#172733)
2025-07-25 [email protected] Rename `AppRunLogger`, stop writing status messages that break JSON (flutter/flutter#172591)
2025-07-25 [email protected] Add `--dart-define`, `-D` to `assemble`, deprecate `--define`, `-d`. (flutter/flutter#172510)
2025-07-25 [email protected] Fix previous text input connection interrupts enter/space (flutter/flutter#171973)
2025-07-25 [email protected] Update CHANGELOG.md for 3.32.8 (flutter/flutter#172779)
2025-07-25 [email protected] Fix an `omit-type` lint that is breaking the tree (flutter/flutter#172776)
2025-07-25 [email protected] feat(tool): Respect user-data-dir flag from web-browser-flag (flutter/flutter#169445)
2025-07-25 [email protected] [web] Fix empty first frame in multiview mode (flutter/flutter#172493)
2025-07-25 [email protected] Migrate to null aware elements - Part 3 (flutter/flutter#172307)
2025-07-25 [email protected] Update few links in docs (flutter/flutter#172166)
2025-07-25 [email protected] Roll Skia from 768ace3fd144 to 409e1c7ba09b (1 revision) (flutter/flutter#172745)
2025-07-25 [email protected] Roll Fuchsia Linux SDK from a_55b5hqpRnigzuNC... to 4IewCwqcEm7r4QsXd... (flutter/flutter#172742)
2025-07-25 [email protected] Roll Skia from 094ac350125f to 768ace3fd144 (18 revisions) (flutter/flutter#172735)
2025-07-25 [email protected] Remove 2023 deprecated `'platforms'` key from daemon output (flutter/flutter#172593)
2025-07-24 [email protected] Manual roll of Dart from 26dece893751 to 5ede85aff798 (flutter/flutter#172731)
2025-07-24 [email protected] 169108 ci debug (flutter/flutter#172589)
2025-07-24 [email protected] Improve assertion message in `_MixedBorderRadius.resolve()` (flutter/flutter#172100)
2025-07-24 [email protected] Make sure that a BottomAppBar doesn't crash in 0x0 environment (flutter/flutter#172097)
2025-07-24 [email protected] Handle#6537 bottom navigation bar (flutter/flutter#172404)
2025-07-24 [email protected] Make sure that a MaterialBanner doesn't crash in 0x0 environment (flutter/flutter#172074)
2025-07-24 [email protected] Remove support for `pluginClass: none` (on `master`; `> 3.35.0`) (flutter/flutter#172579)
2025-07-24 [email protected] Make sure that a Card doesn't crash in 0x0 environment (flutter/flutter#172373)
2025-07-24 [email protected] Make sure that an AboutDialog doesn't crash in 0x0 environment (flutter/flutter#172444)
2025-07-24 [email protected] Make sure that an ActionChip doesn't crash in 0x0 environment (flutter/flutter#172684)
2025-07-24 [email protected] Delete (unused) `dev/checks_tool` directory (flutter/flutter#172715)
2025-07-24 [email protected] [Android] Add missing ci configuration for `Linux android_java17_tool_integration_tests` (flutter/flutter#172702)
2025-07-24 [email protected] Flutter-Cherrypick-Process.md - Spell cherry-pick consistently (flutter/flutter#172697)
2025-07-24 [email protected] Bringup `linux_web_engine_tests`; failing 4+ times in a row (flutter/flutter#172714)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
...
github-merge-queue bot pushed a commit that referenced this pull request Jul 30, 2025
@ricardodalarme
Migrate to null aware elements - Part 5 (#172418)
56d5389 
## Description

Continuing the work from @jamilsaadeh97 to replace verbose null checks
with modern
[null_aware_elements](https://dart.dev/tools/linter-rules/use_null_aware_elements)
syntax.

This PR cleans up the remaining files not covered in the previous parts,
making the code more concise.

## Related PRs

- #172198
- #172306
- #172307
- #172322

## 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].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.
ksokolovskyi pushed a commit to ksokolovskyi/flutter that referenced this pull request Aug 19, 2025
@jamilsaadeh97 @ksokolovskyi
Migrate to null aware elements - Part 3 (flutter#172307)
12d5fa9 
<!--
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Reviewers are typically assigned within a week of filing a request.
To learn more about code review, see our documentation on Tree Hygiene:
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Replace null checks with null aware elements - part 3

Part of flutter#172188

## 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].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- 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]:
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ksokolovskyi pushed a commit to ksokolovskyi/flutter that referenced this pull request Aug 19, 2025
@ricardodalarme @ksokolovskyi
Migrate to null aware elements - Part 5 (flutter#172418)
a9a3b0b 
## Description

Continuing the work from @jamilsaadeh97 to replace verbose null checks
with modern
[null_aware_elements](https://dart.dev/tools/linter-rules/use_null_aware_elements)
syntax.

This PR cleans up the remaining files not covered in the previous parts,
making the code more concise.

## Related PRs

- flutter#172198
- flutter#172306
- flutter#172307
- flutter#172322

## 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].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.
mboetger pushed a commit to mboetger/flutter that referenced this pull request Sep 18, 2025
@jamilsaadeh97 @mboetger
Migrate to null aware elements - Part 3 (flutter#172307)
0656cd2 
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Replace null checks with null aware elements - part 3

Part of flutter#172188

## 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].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[Tree Hygiene]:
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[test-exempt]:
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[Features we expect every widget to implement]:
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[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]:
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[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
mboetger pushed a commit to mboetger/flutter that referenced this pull request Sep 18, 2025
@ricardodalarme @mboetger
Migrate to null aware elements - Part 5 (flutter#172418)
ba8bc41 
## Description

Continuing the work from @jamilsaadeh97 to replace verbose null checks
with modern
[null_aware_elements](https://dart.dev/tools/linter-rules/use_null_aware_elements)
syntax.

This PR cleans up the remaining files not covered in the previous parts,
making the code more concise.

## Related PRs

- flutter#172198
- flutter#172306
- flutter#172307
- flutter#172322

## 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].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.
korca0220 pushed a commit to korca0220/flutter that referenced this pull request Sep 22, 2025
@jamilsaadeh97 @korca0220
Migrate to null aware elements - Part 3 (flutter#172307)
aa3ca09 
<!--
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Reviewers are typically assigned within a week of filing a request.
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-->

Replace null checks with null aware elements - part 3

Part of flutter#172188

## 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].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- 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
korca0220 pushed a commit to korca0220/flutter that referenced this pull request Sep 22, 2025
@ricardodalarme @korca0220
Migrate to null aware elements - Part 5 (flutter#172418)
8b99409 
## Description

Continuing the work from @jamilsaadeh97 to replace verbose null checks
with modern
[null_aware_elements](https://dart.dev/tools/linter-rules/use_null_aware_elements)
syntax.

This PR cleans up the remaining files not covered in the previous parts,
making the code more concise.

## Related PRs

- flutter#172198
- flutter#172306
- flutter#172307
- flutter#172322

## 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].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Nov 12, 2025
@engine-flutter-autoroll
6937b0c35 Migrate to null aware elements - Part 3 (flutter/flutter#17…
4a04021 
…2307)
lucaantonelli pushed a commit to lucaantonelli/flutter that referenced this pull request Nov 21, 2025
@jamilsaadeh97 @lucaantonelli
Migrate to null aware elements - Part 3 (flutter#172307)
d8e336b 
<!--
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Reviewers are typically assigned within a week of filing a request.
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-->

Replace null checks with null aware elements - part 3

Part of flutter#172188

## 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].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- 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
lucaantonelli pushed a commit to lucaantonelli/flutter that referenced this pull request Nov 21, 2025
@ricardodalarme @lucaantonelli
Migrate to null aware elements - Part 5 (flutter#172418)
5628946 
## Description

Continuing the work from @jamilsaadeh97 to replace verbose null checks
with modern
[null_aware_elements](https://dart.dev/tools/linter-rules/use_null_aware_elements)
syntax.

This PR cleans up the remaining files not covered in the previous parts,
making the code more concise.

## Related PRs

- flutter#172198
- flutter#172306
- flutter#172307
- flutter#172322

## 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].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.
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@reidbaker reidbaker reidbaker approved these changes

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