Why does an error occur when redefining an interface?-CodePudding

why Error in @override flutter class? I am new to flutter. Please tell me what is my mistake? I use a class so that there is no code repetition, but it swears at @override Code below -

class Navigator extends StatelessWidget {

  final String nameButton;
  final String navigation;
  const Navigator(this.nameButton, this.navigation)
  @override
  Widget build(BuildContext context) {
    return Container(
      width: 220,
      height: 55,
      child: ElevatedButton(onPressed: () {
        context.go('/$navigation}');
      }, child: Text(nameButton, style: TextStyle(fontSize: 23),),
        style: ElevatedButton.styleFrom(shape: StadiumBorder(), primary: Colors.cyan),
      ),
    );
  }
}

error -

Const constructors can't have a body.  Try removing either the 'const' keyword or the body.
A function body must be provided.  Try adding a function body.

CodePudding user response：

Can you try like this? You need to remove const

Navigator(this.nameButton, this.navigation);