无法将参数类型“Function”分配给参数类型“void Function()?”

Question

import 'package:flutter/material.dart';

class Answers extends StatelessWidget {
  final Function nextQuestion;

  Answers(this.nextQuestion);

  @override
  Widget build(BuildContext context) {
    return ElevatedButton(
      onPressed: nextQuestion,
      child: Text("Answer"),    
    );
  }
}

Answer 1

只需将 nextQuestion 的类型更改为 void Function()：

final void Function() nextQuestion;