ansu_ui/example/lib/main.dart

import 'package:ansu_ui/ansu_ui.dart';
import 'package:ansu_ui/buttons/as_button.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: _ScreenAdapter(),
    );
  }
}

class _ScreenAdapter extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    ScreenUtil.init(context,
        designSize: Size(750, 1334), allowFontScaling: false);
    return MyHomePage();
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key}) : super(key: key);

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('title'),
      ),
      body: ListView(
        children: [
          ASButton(),
          SizedBox(height: 12.w),
        ],
      ),
    );
  }
}