onNeedUnlock property Null safety

(Future<SecureApplicationAuthenticationStatus?>? Function?(SecureApplicationController? secureApplicationStateNotifier)?) onNeedUnlock
final

Method will be called when the user switch back to your application

you can manage from here a global process for authorizing the user to see hidden content like maybe by using local_auth package

Implementation

final Future<SecureApplicationAuthenticationStatus?>? Function(
        SecureApplicationController? secureApplicationStateNotifier)?
    onNeedUnlock;