import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return CupertinoApp(
      debugShowCheckedModeBanner: false,
      home: CupertinoPageScaffold(
               navigationBar: CupertinoNavigationBar(
            middle: Text('KBOYのFlutter大学'),
          ),
        backgroundColor:Colors.white,
        child: Center(
          child: CupertinoButton.filled(
      child: Text('Button',style:TextStyle(color:Colors.white),),
      onPressed: (){},
    ),
        ),
      ),
    );
  }
}