// 文件位置:C:\Users\dai51\StudioProjects\myflutter\lib\main.dart
import 'package:flutter/material.dart';
import 'basic/NavigationBar.dart';
void main(List<String> args) {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
home: Home(),
debugShowCheckedModeBanner: false,
);
}
}
// 文件位置:C:\Users\dai51\StudioProjects\myflutter\lib\basic\NavigationBar.dart
import 'package:flutter/material.dart';
import 'Content.dart';
class Home extends StatelessWidget {
const Home({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("记账薄"),
leading: Icon(Icons.menu),
actions: [
Padding(
padding: EdgeInsets.symmetric(horizontal: 16),
child: Icon(Icons.search),
),
Icon(Icons.more_vert),
],
elevation: 0.0,
centerTitle: true,
),
body: const TextDemo(),
bottomNavigationBar: BottomNavigationBar(
type: BottomNavigationBarType.fixed,
backgroundColor: Color(0xFF336699),
selectedItemColor: Colors.white,
unselectedItemColor: Colors.white.withOpacity(.60),
selectedFontSize: 14,
unselectedFontSize: 14,
onTap: (value) {
// Respond to item press.
},
items: [
BottomNavigationBarItem(
title: Text('首页'),
icon: Icon(Icons.home),
),
BottomNavigationBarItem(
title: Text('图表'),
icon: Icon(Icons.equalizer),
),
BottomNavigationBarItem(
title: Text('修改'),
icon: Icon(Icons.border_color),
),
BottomNavigationBarItem(
title: Text('账户'),
icon: Icon(Icons.account_circle),
),
],
));
}
}
// 文件位置:C:\Users\dai51\StudioProjects\myflutter\lib\basic\Text.dart
import 'package:flutter/material.dart';
class TextDemo extends StatelessWidget {
const TextDemo({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Column(
// ignore: prefer_const_literals_to_create_immutables
children: [
const Text(
"这是模拟的记账薄内容。",
textDirection: TextDirection.ltr, // 文本显示的方向:从左到右
style: TextStyle(
// 文本样式,相当于 css 的 style
fontSize: 30, // 字体的大小
color: Colors.red, // 字体的颜色
fontWeight: FontWeight.w500, // 字体的粗细
fontStyle: FontStyle.italic, // 字体倾斜
decoration: TextDecoration.lineThrough, // 字体删除线
decorationColor: Colors.blue, // 字体删除线的颜色
),
textAlign: TextAlign.left, // 文字显示的位置
maxLines: 3, // 最大显示的行数
overflow: TextOverflow.ellipsis, // 文本溢出后显示三个点 ...
textScaleFactor: 1, // 字体放大的倍数
),
RichText(
// 多信息内容的文本
text: TextSpan(
// 文本的容器,相当于 html 的 <span></span>
text: "Flutter简介:Flutter是Google开源的构建用户界面(UI)工具包", // 文本的内容
style: TextStyle(
// 文本样式
fontSize: 30,
color: Color(0xFF336699),
),
children: [
TextSpan(
text: "帮助开发者通过一套代码库高效构建多平台精美应用,支持移动、Web、桌面和嵌入式平台。",
style: TextStyle(
fontSize: 30,
color: Colors.blue,
),
),
TextSpan(
text: "Flutter 开源、免费,拥有宽松的开源协议,适合商业项目。",
style: TextStyle(
fontSize: 30,
color: Colors.black45,
),
),
]),
),
],
);
}
}
程序执行后的效果: