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:
Widget buildArea() {
return Container(
color: Colors.blue,
child: const Text('hello'),
);
}
GOOD:
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:
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:
linter:
rules:
use_colored_box: true
Unless stated otherwise, the documentation on this site reflects Dart 3.9.2. Report an issue.