prefer-define-hero-tag

added in: 1.6.0

warning

🛠

Warns when a Widget has an unset heroTag.

When heroTag is not set, the default value is used. Having two or more widgets with the same heroTag will result in an error.

Example

❌ Bad:

FloatingActionButton(
  onPressed: () => context.read<CounterCubit>().increment(),
  child: const Icon(Icons.add),
); // LINT

✅ Good:

FloatingActionButton(
  onPressed: () => context.read<CounterCubit>().increment(),
  child: const Icon(Icons.add),
  heroTag: 'increment_heroTag',
);