import 'dart:async';
import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:muse_nepu_course/global.dart';
import 'package:pretty_qr_code/pretty_qr_code.dart';
import 'package:slide_countdown/slide_countdown.dart';
class QRCode extends StatefulWidget {
@override
_QRCodeState createState() => _QRCodeState();
}
class _QRCodeState extends State {
int _countdownTime = 50;
final streamDuration = StreamDuration(Duration(seconds: 50));
void initState() {
super.initState();
Global().getqr();
// _countdownTimer();
}
String endtime = '还有55s';
//定时器50s,每50s刷新一次二维码，每1s刷新一次endtime
// void _countdownTimer() {
// const oneSec = const Duration(seconds: 1);
// var callback = (timer) => {
// setState(() {
// if (_countdownTime < 1) {
// //刷新二维码并重置endtime
// Global().getqr();
// _countdownTime = 50;
// streamDuration.change(Duration(seconds: 51));
// setState(() {});
// } else {
// print(_countdownTime);
// _countdownTime = _countdownTime - 1;
// endtime = '还有$_countdownTime s' + Global.qrcode + '
点击立即刷新';
// setState(() {});
// }
// })
// };
// Timer.periodic(oneSec, callback);
// }
//获取endtime
String getendtime() {
return endtime;
}
String passtemp = '';
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
backgroundColor: Global.home_currentcolor,
//设置
actions: [
IconButton(
icon: Icon(Icons.refresh),
onPressed: () {
Global().getqr();
_countdownTime = 50;
streamDuration.change(Duration(seconds: 51));
setState(() {});
},
),
IconButton(
icon: Icon(Icons.settings),
onPressed: () {
//弹窗一个文本框加上一个确认框
showDialog(
context: context,
builder: (context) {
return AlertDialog(
title: Text('修改你的一卡通密码\n如果没有错误请不要修改'),
content: TextField(
onChanged: (value) {
passtemp = value;
},
),
actions: [
TextButton(
child: Text('确认'),
onPressed: () {
Global.password = passtemp;
Global.saveaccount();
Navigator.of(context).pop();
},
)
],
);
});
},
),
],
),
body: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
TextButton(
child: Text('点击刷新二维码'),
onPressed: () {
Global().getqr();
_countdownTime = 50;
streamDuration.change(Duration(seconds: 51));
setState(() {});
},
),
Align(
alignment: Alignment.topCenter,
child: SlideCountdown(
durationTitle: DurationTitle(
days: '天', hours: '时', minutes: '分', seconds: '秒'),
// This duration no effect if you customize stream duration
streamDuration: streamDuration,
onChanged: (Duration remaining) {
print('剩余' + remaining.inSeconds.toString()); //这里可以获取到剩余时间
//如果剩余时间等于1,恢复倒计时为50s
if (remaining.inSeconds <= 1) {
streamDuration.change(Duration(seconds: 51));
Global().getqr();
_countdownTime = 50;
setState(() {});
}
},
),
),
Expanded(
child: GestureDetector(
onTap: () {
Global().getqr();
streamDuration.change(Duration(seconds: 51));
_countdownTime = 50;
setState(() {});
},
child: PrettyQr(
typeNumber: 3,
size: 200,
data: Global.qrcodegetter(),
errorCorrectLevel: QrErrorCorrectLevel.M,
roundEdges: true,
),
),
),
],
),
),
);
}
}
