1、加入依赖
在 pubspec.yaml 中 dependencies 节点下添加:
dependencies:
qr_flutter: ^1.1.
2、引入代码
在需要细线二维码的 dart 类中引入依赖代码包:
import 'package:qr_flutter/qr_flutter.dart';
代码部分
import 'package:flutter/material.dart';
import 'package:qr_flutter/qr_flutter.dart'; /**
* 首页
*/
class HomePage extends StatefulWidget {
@override
_HomePageState createState() => _HomePageState();
} class _HomePageState extends State<HomePage>
with AutomaticKeepAliveClientMixin { // 切换界面保持,不被重置 @override
bool get wantKeepAlive => true; @override
Widget build(BuildContext context) {
return Scaffold(
appBar: new AppBar(
title: new Text("我是标题"),
),
body: new Center(
child: new QrImage(
data: "这里是需要生成二维码的数据",
size: 200.0,
),
),
);
}
}
详细属性:https://pub.dartlang.org/packages/qr_flutter
3、实现效果
博客地址:https://www.cnblogs.com/niceyoo