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use_key_in_widget_constructors

Stable
Flutter
Fix available

Use key in widget constructors.

Details

#

DO use key in widget constructors.

It's a good practice to expose the ability to provide a key when creating public widgets.

BAD:

dart 
class MyPublicWidget extends StatelessWidget {
}

GOOD:

dart 
class MyPublicWidget extends StatelessWidget {
  MyPublicWidget({super.key});
}

Enable

#

To enable the use_key_in_widget_constructors rule, add use_key_in_widget_constructors under linter > rules in your analysis_options.yaml file:

analysis_options.yaml
yaml 
linter:
  rules:
    - use_key_in_widget_constructors

If you're instead using the YAML map syntax to configure linter rules, add use_key_in_widget_constructors: true under linter > rules:

analysis_options.yaml
yaml 
linter:
  rules:
    use_key_in_widget_constructors: true

除非另有说明，文档之所提及适用于 Dart 3.9.2 版本报告页面问题。