Flutter架构设计传统MVC

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class PersonInfo {
   String name = '';
   int age = 0;

  PersonInfo(this.name, this.age);
}

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import 'package:base_demo/pages/mine/person/person_info.dart';

class PersonInfoController {
  late PersonInfo _model;

  PersonInfo get model => _model;

  PersonInfoController() {
    _model = PersonInfo('', 0);
  }

  void updateName(String name) {
    _model.name = name;
  }

  void decrement() {
    _model.age -= 1;
  }

  void increment() {
    _model.age += 1;
  }

  String personInfo () {
    return 'name: ${_model.name}, age: ${_model.age}';
  }

}

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import 'package:base_demo/pages/mine/person/person_info_controller.dart';
import 'package:base_demo/pages/mine/person/person_info.dart';
import 'package:flutter/material.dart';

class PersonInfoView extends StatefulWidget {
  final PersonInfoController controller;

  const PersonInfoView({super.key, required this.controller});

  @override
  State<StatefulWidget> createState() => _PersonInfoViewState();
}

class _PersonInfoViewState extends State<PersonInfoView> {
  late PersonInfoController _controller;

  @override
  void initState() {
    _controller = widget.controller;
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: const Text('MVC'),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.start,
            children: <Widget>[
              Text('personInfo = ${_controller.personInfo()}'),
              ElevatedButton(
                onPressed: () => setState(() {
                  _controller.updateName('ksnowlv');
                }),
                child: const Text('name ksnowlv'),
              ),
              ElevatedButton(
                onPressed: () => setState(() {
                  _controller.increment();
                }),
                child: const Text('age Increment'),
              ),
              ElevatedButton(
                onPressed: () => setState(() {
                  _controller.decrement();
                }),
                child: const Text('age decrement'),
              ),
            ],
          ),
        ));
  }
}