prefer_async_callback

Severity	Quick Fix	Options
Info	✅	❌

Details

PREFER using the built-in typedef AsyncCallback instead of declaring a custom one.

Bad

final Future<void> Function() cb;

Good

final AsyncCallback cb;

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

custom_lint:
  rules:
    - prefer_async_callback