use_colored_box
Use ColoredBox
.
Details
#DO use ColoredBox
when Container
has only a Color
.
A Container
is a heavier Widget than a ColoredBox
, and as bonus, ColoredBox
has a const
constructor.
BAD:
dart
Widget buildArea() {
return Container(
color: Colors.blue,
child: const Text('hello'),
);
}
GOOD:
dart
Widget buildArea() {
return const ColoredBox(
color: Colors.blue,
child: Text('hello'),
);
}
Enable
#To enable the use_colored_box
rule, add use_colored_box
under linter > rules in your analysis_options.yaml
file:
analysis_options.yaml
yaml
linter:
rules:
- use_colored_box
If you're instead using the YAML map syntax to configure linter rules, add use_colored_box: true
under linter > rules:
analysis_options.yaml
yaml
linter:
rules:
use_colored_box: true
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Provide details Unless stated otherwise, the documentation on this site reflects Dart 3.8.1. Page last updated on 2025-03-07. View source or report an issue.