[nohli]

I've fixed the picker interactions and example issues for 1.6.0.

Changes

• Validate HEX input, preserve drafts during transparency and layout changes, and follow RGB changes from the parent.
• Select colors only after a tap or drag is accepted; canceled touches keep the previous value.
• Match wheel input to its painted hues and correct HSV labels.
• Keep selected labels inside narrow dropdowns.
• Preserve example colors, fix asset paths, and support scrolling with the keyboard open.

The package keeps its Flutter 2.10 minimum. The native example requires Flutter 3.47+.

Testing

• All 44 package tests pass on Flutter 3.41.9, 3.44.9, and 3.47.7. The new editing bugs fail on the previous code and pass with these fixes.
• All 3 example tests, analysis, and formatting pass on Flutter 3.47.7. pana scores 160/160; the publish dry run has zero warnings.
• On Flutter 3.47.7, all seven picker modes pass on iOS 15.5, 16.4, 17.5, 18.6, 26.5, and 27.0; Android API 24, 31, 35, 36, and 37; and Wear OS API 30.

[Copilot]

🟡 Changes recommended

Pointer-down handlers can unintentionally change slider and wheel values when users begin scrolling.

2 open findings

• Wheel selection changes before gesture arena resolves · New
• Slider changes value before gesture arena resolves · New

What changed in this PR

Improves picker state synchronization, input handling, gesture behavior, example portability, and compatibility validation.

Changes:

• Synchronizes external colors and safely validates HEX input.
• Corrects picker gestures, wheel rendering, HSV labels, and color-channel compatibility.
• Improves examples, documentation, tests, assets, and CI coverage.

File	Description
.github/​workflows/​flutter_checks.yml	Adds Flutter analysis and test CI.
CHANGELOG.md	Documents unreleased changes.
README.md	Corrects usage and behavior documentation.
analysis_options.yaml	Excludes generated build files.
pubspec.yaml	Allows supported Dart 3 releases.
lib/​src/​color_channels.dart	Adds compatible 8-bit channel accessors.
lib/​src/​color_picker.dart	Synchronizes parent color updates.
lib/​src/​pickers/​hsv_picker.dart	Corrects HSV labels and units.
lib/​src/​pickers/​palette_hue_picker.dart	Reformats hue colors.
lib/​src/​pickers/​rgb_picker.dart	Uses compatible channel accessors.
lib/​src/​pickers/​swatches_picker.dart	Removes unused animation resources.
lib/​src/​pickers/​wheel_picker.dart	Aligns painting and tap coordinates.
lib/​src/​widgets/​hex_picker.dart	Preserves resources and validates input.
lib/​src/​widgets/​slider_picker.dart	Adds tap-based selection.
test/​hex_picker_test.dart	Tests validation, state, and synchronization.
test/​hsv_labels_test.dart	Tests corrected HSV labels.
test/​picker_gestures_test.dart	Tests slider and wheel taps.
test/​swatches_picker_test.dart	Tests final-swatch accessibility.
test/​wheel_rendering_test.dart	Verifies painted hue coordinates.
example/​analysis_options.yaml	Excludes generated platform directories.
example/​lib/​main.dart	Retains colors and supports scrolling.
example/​lib/​complex_example/​main.dart	Improves drawer, assets, and layout.
example/​pubspec.yaml	Adds tests and corrects asset casing.
example/​test/​complex_example_test.dart	Tests keyboard layout, assets, and destinations.
example/​test/​widget_test.dart	Tests retained parent color state.

🧠 Review effort: Balanced

---

💡 Add a code-review agent skill or configure MCP servers for context-aware, tailored reviews. Learn more in the docs.

[Copilot]

🟡 Changes recommended

Alpha-only updates still discard active HEX edits, and the changelog removes the published 1.5.2 history.

2 open findings

• Preserve in-progress HEX edits when only alpha changes · New
• Preserve 1.5.2 history in release notes · New

2 resolved since last review

• Slider changes value before gesture arena resolves
• Wheel selection changes before gesture arena resolves

🧠 Review effort: Balanced

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.

[Copilot]

🔵 Needs a closer look

Two critical active issues block verification: both CI jobs cannot resolve the Flutter SDK dependency with standalone Dart, and the new test contains null-safety errors that prevent analysis.

No open issues 🎉

2 previously missed issues

In code that hasn't changed since last review

Use Flutter to resolve the root package dependencies

.github/​workflows/​flutter_checks.yml:28

The root package declares flutter as an SDK dependency, but this invokes the standalone Dart package tool. dart pub get cannot resolve sdk: flutter in a Flutter package, so both matrix jobs fail before analysis and tests run. Use the Flutter wrapper here (for example, flutter pub get --no-example) instead.

Assert the nullable test result before indexing bytes

test/​wheel_rendering_test.dart:34

tester.runAsync returns a nullable result, and the non-null assertion on line 31 does not promote the bytes variable for later expressions. These three indexed accesses therefore fail null-safety analysis; assert once when assigning the result (or retain ! on every access) before running the new test suite.

_{Review effort: Lite}

[nohli]

🔵 Needs a closer look

Two critical active issues block verification: both CI jobs cannot resolve the Flutter SDK dependency with standalone Dart, and the new test contains null-safety errors that prevent analysis.

No open issues 🎉

2 previously missed issues
In code that hasn't changed since last review

Use Flutter to resolve the root package dependencies
Assert the nullable test result before indexing bytes
Review effort: Lite

Both findings are false positives on the reviewed commit, b6227c8:

1. Dependency resolution: The workflow installs Flutter before running dart pub get --no-example. That exact command succeeds on both Flutter 3.10.6 and stable; neither job fails at dependency resolution.

2. Nullable test result: The assertion in bytes![0] promotes the local bytes variable to non-nullable for subsequent accesses. The later bytes[1], bytes[2], and bytes[3] expressions are valid. Analysis and tests pass on both Flutter versions.

CI results for the reviewed commit