flutter-＞pageView无限加载

// 轮播图组件PageView/PageView.builder
PageView(
    onPageChanged: (index) => print(index), //监听滑动事件
    scrollDirection: Axis.vertical,  //配置滑动方向 默认是水平: Axis.horizontal   垂直:Axis.vertical
    children: [
        Center(child: Text("第1屏", style: Theme.of(context).textTheme.headlineLarge)),
    ],
);

PageView.builder(
    scrollDirection: Axis.vertical,  //配置滑动方向 默认是水平: Axis.horizontal   垂直:Axis.vertical
    itemCount: 10,   //生成数量
    itemBuilder: (context,index)=>Center(child: Text("第${index+1}屏",style:Theme.of(context).textTheme.headlineLarge)),
);

无限加载代码:

import 'package:flutter/material.dart';

void main() {
  runApp(
    MaterialApp(
      title: 'contaniner',
      home: Scaffold(
        appBar: AppBar(
          title: const Center(child: Text('flutter bar')),
        ),
        body: const MyAPP(),
      ),
    ),
  );
}

class MyAPP extends StatefulWidget {
  const MyAPP({super.key});
  @override
  State<MyAPP> createState() => _MyAPPState();
}

class _MyAPPState extends State<MyAPP> {
  List<Widget> list = [];
  void addDataFun() {
    List.generate(
      10,
      (index) => {
        list.add(Center(
            child: Text("第${list.length + 1}屏",
                style: const TextStyle(fontSize: 60))))
      },
    );
  }

  @override
  void initState() {
    super.initState();
    addDataFun();
  }

  @override
  Widget build(BuildContext context) {
    return PageView(
      onPageChanged: (index) => {
        if (index % 8 == 0) {addDataFun()}
      },
      scrollDirection: Axis.vertical,
      children: list,
    );
  }
}