我正在尝试创建一个像这样的无状态小部件:
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"),
);
}
}
Run Code Online (Sandbox Code Playgroud)
但是,参数中出现错误onPressed:“参数类型‘Function’不能分配给参数类型‘void Function()?’”。我该如何解决?