10/10 points: Provide a valid pubspec.yaml

5/5 points: Provide a valid README.md

5/5 points: Provide a valid CHANGELOG.md

10/10 points: Use an OSI-approved license

Detected license: Apache-2.0.

10/10 points: 20% or more of the public API has dartdoc comments

177 out of 425 API elements (41.6 %) have documentation comments.

Some symbols that are missing documentation: gesture_handlers, gesture_handlers.AnimationControllerGestureMixin, gesture_handlers.AnimationControllerGestureMixin.controller, gesture_handlers.AnimationControllerGestureMixin.forwardProgress, gesture_handlers.AnimationControllerGestureMixin.lowerBound.

10/10 points: Package has an example

20/20 points: Supports 6 of 6 possible platforms (iOS, Android, Web, Windows, macOS, Linux)

• ✓ Android

• ✓ iOS

• ✓ Windows

• ✓ Linux

• ✓ macOS

• ✓ Web

0/50 points: code has no errors, warnings, lints, or formatting issues

Found 16 issues. Showing the first 2:

   ╷
11 │ class GestureModalBottomSheetRoute<T> extends PopupRoute<T> with GestureRouteTransitionMixin<T> {
   │                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   ╵

   ╷
91 │   Widget buildModalBarrier(BuildContext context, bool barrierDismissible) {
   │          ^^^^^^^^^^^^^^^^^
   ╵

10/10 points: All of the package dependencies are supported in the latest version

No dependencies.

To reproduce run dart pub outdated --no-dev-dependencies --up-to-date --no-dependency-overrides.

10/10 points: Package supports latest stable Dart and Flutter SDKs

0/20 points: Compatible with dependency constraint lower bounds

downgrade analysis failed failed with 5 errors:

• INVALID_OVERRIDE - lib/src/gesture_navigation/gesture_bottom_sheet.dart:11:66 - 'GestureRouteTransitionMixin.buildModalBarrier' ('Widget Function(BuildContext, bool)') isn't a valid override of 'ModalRoute.buildModalBarrier' ('Widget Function()').
• INVALID_OVERRIDE - lib/src/gesture_navigation/gesture_route_transition_mixin.dart:91:10 - 'GestureRouteTransitionMixin.buildModalBarrier' ('Widget Function(BuildContext, bool)') isn't a valid override of 'ModalRoute.buildModalBarrier' ('Widget Function()').
• INVALID_OVERRIDE - lib/src/gesture_navigation/gesture_routes.dart:7:69 - 'GestureRouteTransitionMixin.buildModalBarrier' ('Widget Function(BuildContext, bool)') isn't a valid override of 'ModalRoute.buildModalBarrier' ('Widget Function()').

Run flutter pub downgrade and then flutter analyze to reproduce the above problem.

You may run dart pub upgrade --tighten to update your dependency constraints, see dart.dev/go/downgrade-testing for details.