flutter中没有直接提供字符串的格式化，可借助插件来进行格式化
1.在pubspec.yaml 文件中添加依赖
dependencies:
sprintf: ^4.0.2
2.需要的文件中添加
import 'package:sprintf/sprintf.dart';
3.Demo
import 'package:flutter/material.dart';
import 'package:sprintf/sprintf.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
centerTitle: true,
title: Text('标题'),
),
body: BodyPart(),
);
}
}
class BodyPart extends StatefulWidget {
@override
_BodyPartState createState() => _BodyPartState();
}
class _BodyPartState extends State<BodyPart> {
_BodyPartState();
@override
Widget build(BuildContext context) {
String name = 'zhangsan';
List<String> pet = ['dog','cat'];
String test = sprintf('his name is %s',[name]);
String test2 = sprintf('%s has two pets %s and %s',[name,pet[0],pet[1]]);
return Container(
child: Text('$test\n$test2'),
);
}
}
4.效果
5001.jpg
