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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:package_info/package_info.dart';
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import 'package:dio/dio.dart';
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import 'package:sp_util/sp_util.dart';
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import 'package:url_launcher/url_launcher.dart';
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import 'constants.dart';
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import 'data_util.dart';
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class UpdaterPage extends StatefulWidget {
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final Widget child;
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const UpdaterPage(this.child);
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@override
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UpdatePagerState createState() => UpdatePagerState();
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}
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class UpdatePagerState extends State<UpdaterPage> {
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var _serviceVersionCode,
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_serviceVersionName,
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_serviceVersionPlatform,
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_serviceVersionApp;
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@override
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void initState() {
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super.initState();
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//每次打开APP获取当前时间戳
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var timeEnd = DateTime.now().millisecondsSinceEpoch;
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_getNewVersionAPP();
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//获取"Later"保存的时间戳
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var timeStart = SpUtil.getInt(Constants.timeStart);
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if (timeStart == 0) {
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//第一次打开APP时执行"版本更新"的网络请求
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_getNewVersionAPP();
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} else if (timeStart != 0 && timeEnd - timeStart! >= 24 * 60 * 60 * 1000) {
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//如果新旧时间戳的差大于或等于一天，执行网络请求
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_getNewVersionAPP();
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}
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}
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//执行版本更新的网络请求
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_getNewVersionAPP() async {
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String url = "/appversions/latest"; //接口的URL，替换你的URL
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try {
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Response response = await Dio().get(url);
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setState(() {
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var data = response.data;
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_serviceVersionCode = data["versionCode"].toString(); //版本号
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_serviceVersionName = data["versionName"].toString(); //版本名称
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_serviceVersionPlatform = data["versionPlatform"].toString(); //版本平台
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_serviceVersionApp = data["versionApp"].toString(); //下载的URL
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_checkVersionCode();
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});
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} catch (e) {
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print(e);
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}
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_checkVersionCode();
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}
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//检查版本更新的版本号
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_checkVersionCode() async {
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PackageInfo packageInfo = await PackageInfo.fromPlatform();
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String _currentVersionCode = packageInfo.version;
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print('版本——————————————————————'+ '${_currentVersionCode}');
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int serviceVersionCode = int.parse(_serviceVersionCode);
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print(serviceVersionCode);
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int currentVersionCode = int.parse(_currentVersionCode);
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print(currentVersionCode);
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if (serviceVersionCode > currentVersionCode) {
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_showNewVersionAppDialog(); //弹出对话框
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}
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}
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//弹出"版本更新"对话框
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Future<void> _showNewVersionAppDialog() async {
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print('弹出框');
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if (_serviceVersionPlatform == "android") {
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return showDialog<void>(
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context: context,
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barrierDismissible: false,
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builder: (BuildContext context) {
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return AlertDialog(
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title: Row(
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children: <Widget>[
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Image.asset("images/ic_launcher_icon.png",
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height: 35.0, width: 35.0),
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Padding(
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padding: EdgeInsets.fromLTRB(30.0, 0.0, 10.0, 0.0),
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child: Text('项目名称',
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style: TextStyle(
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color: Color(0xFF384F6F), fontSize: 20.0),),)
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],
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),
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content: Text('提示的内容',
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style: TextStyle(
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color: Color(0xFF384F6F), fontSize: 18.0),),
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actions: [
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OutlinedButton(
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child: new Text('稍后再说',
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style: TextStyle(
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color: Color(0xFF384F6F), fontSize: 20.0),),
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onPressed: () {
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Navigator.of(context).pop();
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var timeStart = DateTime.now().millisecondsSinceEpoch;
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DataUtil.saveCurrentTimeMillis(timeStart); //保存当前的时间戳
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},
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),
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OutlinedButton(
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child: new Text('下载',
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style: TextStyle(
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color: Color(0xFF384F6F), fontSize: 20.0)),
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onPressed: () {
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//https://play.google.com/store/apps/details?id=项目包名
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launch(_serviceVersionApp); //到Google Play 官网下载
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Navigator.of(context).pop();
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},
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)
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],
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);
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});
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} else {
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//iOS
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return showDialog<void>(
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context: context,
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barrierDismissible: false,
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builder: (BuildContext context) {
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return CupertinoAlertDialog(
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title:Row(
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children: <Widget>[
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Image.asset("images/ic_launcher_icon.png",
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height: 35.0, width: 35.0),
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Padding(
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padding: EdgeInsets.fromLTRB(30.0, 0.0, 10.0, 0.0),
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child: Text('项目名称',
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style: TextStyle(
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color: Color(0xFF384F6F), fontSize: 20.0),),)
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],
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),
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content: Text('提示的内容',
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style: TextStyle(
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color: Color(0xFF384F6F), fontSize: 18.0),),
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actions: [
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OutlinedButton(
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child: new Text('稍后再说',
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style: TextStyle(
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color: Color(0xFF384F6F), fontSize: 20.0),),
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onPressed: () {
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Navigator.of(context).pop();
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var timeStart = DateTime.now().millisecondsSinceEpoch;
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DataUtil.saveCurrentTimeMillis(timeStart); //保存当前的时间戳
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},
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),
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OutlinedButton(
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child: new Text('下载',
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style: TextStyle(
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color: Color(0xFF384F6F), fontSize: 20.0)),
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onPressed: () {
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//https://play.google.com/store/apps/details?id=项目包名
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launch(_serviceVersionApp); //到Google Play 官网下载
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Navigator.of(context).pop();
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},
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),
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],
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);
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});
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}
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}
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@override
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Widget build(BuildContext context) => widget.child;
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}
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