摘要：
import 'package:flutter/material.dart';void main()=>runApp(MyApp());class MyApp extends StatelessWidget { @override Widget build(BuildContext context) 阅读全文
摘要：
重点： bottomNavigationBar: BottomAppBar( shape: CircularNotchedRectangle(),//这个就是设置floatingactionbutton嵌入底部导航的设置； 下面是完整示例：import 'package:flutter/materi 阅读全文
摘要：
import 'package:flutter/material.dart';import 'dart:ui';import 'dart:async';enum Option{A,B,C}void main() => runApp(MyApp());class MyApp extends State 阅读全文