sized_box_shrink_expand

Use SizedBox shrink and expand named constructors.

This rule is available as of Dart 2.16.0.

Details

Use SizedBox.shrink(...) and SizedBox.expand(...) constructors appropriately.

Either the SizedBox.shrink(...) or SizedBox.expand(...) constructor should be used instead of the more general SizedBox(...) constructor when one of the named constructors capture the intent of the code more succinctly.

Examples

BAD:

Widget buildLogo() {
  return SizedBox(
    height: 0,
    width: 0,
    child: const MyLogo(),
  );
}

Widget buildLogo() {
  return SizedBox(
    height: double.infinity,
    width: double.infinity,
    child: const MyLogo(),
  );
}

GOOD:

Widget buildLogo() {
  return SizedBox.shrink(
    child: const MyLogo(),
  );
}

Widget buildLogo() {
  return SizedBox.expand(
    child: const MyLogo(),
  );
}

Usage

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

linter:
  rules:
    - sized_box_shrink_expand