restorationId property Null safety
final
Restoration ID to save and restore the state of the form field.
Setting the restoration ID to a non-null value results in whether or not the form field validation persists.
The state of this widget is persisted in a RestorationBucket claimed from the surrounding RestorationScope using the provided restoration ID.
See also:
- RestorationManager, which explains how state restoration works in Flutter.
Implementation
final String? restorationId;