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Feat: Add withOpacity to gradient because sometimes it's required to call withOpacity directly on gradient

Resolves #150501

This adds a withOpacity feature to a gradient, given user has given colors this will override opacity to given opacity for them.

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@github-actions github-actions bot added the framework flutter/packages/flutter repository. See also f: labels. label Jun 23, 2024
@jonahwilliams
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Approach seems reasonable, you have some analysis errors:

   info • Type could be non-nullable • packages/flutter/test/painting/gradient_test.dart:319:27 • unnecessary_nullable_for_final_variable_declarations
   info • Type could be non-nullable • packages/flutter/test/painting/gradient_test.dart:635:27 • unnecessary_nullable_for_final_variable_declarations
   info • Type could be non-nullable • packages/flutter/test/painting/gradient_test.dart:869:26 • unnecessary_nullable_for_final_variable_declarations

@rkishan516 rkishan516 force-pushed the gradient_with_opacity branch from 401b62b to 781a51e Compare June 25, 2024 15:51
@rkishan516 rkishan516 force-pushed the gradient_with_opacity branch from 846548d to 0a79e38 Compare June 25, 2024 15:55
@rkishan516
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@jonahwilliams I have updated based on your suggestion

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@jonahwilliams jonahwilliams left a comment

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LGTM

@rkishan516
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Thanks @jonahwilliams

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@nate-thegrate nate-thegrate left a comment

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LGTM, aside from documentation :)

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This looks fantastic, thank you!

I'll go ahead and delete the extra character, and then I think we're good to merge 👍

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jul 4, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jul 4, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jul 4, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jul 5, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jul 5, 2024
auto-submit bot pushed a commit to flutter/packages that referenced this pull request Jul 7, 2024
Roll Flutter from af913a7 to fafd67d (41 revisions)

flutter/flutter@af913a7...fafd67d

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2024-07-03 [email protected] Fix invalid URL suggestion for gradle incompatability (flutter/flutter#150999)
2024-07-03 [email protected] Cupertino transparent navigation bars (flutter/flutter#149102)
2024-07-03 [email protected] Prepares semantics_update_test for upcoming link URL change (flutter/flutter#151261)
2024-07-03 [email protected] Add a message about spam/brigading (flutter/flutter#150583)
2024-07-03 [email protected] PinnedHeaderSliver example based on the iOS Settings AppBar (flutter/flutter#151205)
2024-07-03 [email protected] Update deprecation policy (flutter/flutter#151257)
2024-07-03 [email protected] SliverFloatingHeader (flutter/flutter#151145)
2024-07-03 [email protected] Remove warning when KGP version not detected (flutter/flutter#151254)
2024-07-03 [email protected] Feat: Add withOpacity to gradient (flutter/flutter#150670)
2024-07-03 [email protected] Fix references in examples (flutter/flutter#151204)
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2024-07-03 [email protected] content dimensions are not established get controller value error (flutter/flutter#148938)
2024-07-03 [email protected] chore: fix typos and link broken (flutter/flutter#150402)
2024-07-03 [email protected] Add example of goldenFileComparator usage in widget tests (flutter/flutter#150422)
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2024-07-02 [email protected] Fix scheduler event loop being stuck due to task with Priority.idle (flutter/flutter#151168)
2024-07-02 [email protected] Fix result propagation in RenderSliverEdgeInsetsPadding.hitTestChildren (flutter/flutter#149825)
2024-07-02 [email protected] docImports for flutter_test (flutter/flutter#151189)
2024-07-02 [email protected] Interactable ScrollView content when settling a scroll activity (flutter/flutter#145848)
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2024-07-02 [email protected] Fix typo (flutter/flutter#151192)
2024-07-02 [email protected] [tool] Fix `stdin.flush` calls on processes started by `FakeProcessManager` (flutter/flutter#151183)
2024-07-02 [email protected] Roll Flutter Engine from 433d360eee11 to 44278941443e (4 revisions) (flutter/flutter#151186)

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victorsanni pushed a commit to victorsanni/flutter that referenced this pull request Jul 8, 2024
Feat: Add withOpacity to gradient because sometimes it's required to call withOpacity directly on gradient

Resolves flutter#150501 

This adds a `withOpacity` feature to a gradient, given user has given colors this will override opacity to given opacity for them.
@rkishan516 rkishan516 deleted the gradient_with_opacity branch July 26, 2025 06:01
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Gradient withOpacity method

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