avoid-missing-image-alt

added in: 1.7.0

warning

⚙️

Warns when an Image widget does not have a semanticLabel.

⚙️ Config

Set allow-empty (default is true) to configure whether an empty string value is allowed to be used as label.

dart_code_metrics:
  ...
  rules:
    ...
    - avoid-missing-image-alt:
        allow-empty: true

Example

❌ Bad:

void main() {
  const Image(key: 'hello'); // LINT
  Image.asset(key: 'hello'); // LINT

  const FadeInImage(key: 'hello'); // LINT
  FadeInImage.assetNetwork(key: 'hello'); // LINT
}

✅ Good:

void main() {
  const Image(key: 'hello', semanticLabel: 'some');
  Image.asset(key: 'hello', semanticLabel: 'thing');

  const FadeInImage(key: 'hello', imageSemanticLabel: 'some');
  FadeInImage.assetNetwork(key: 'hello', imageSemanticLabel: 'thing');
}