androiddialog隐藏状态栏_Flutter最近搞了个项目启动页Splash，Navigator.pop无法关闭Dialog...

import &＃39;dart:async&＃39;;
import &＃39;package:flutter/material.dart&＃39;;
import &＃39;package:flutter/services.dart&＃39;;
import &＃39;package:wx_advmanager/common/event/eventbus.dart&＃39;;
import &＃39;package:wx_advmanager/pages/user/loginevent.dart&＃39;;class SplashScreen extends StatelessWidget{&＃64;overrideWidget build(BuildContext context) {// 隐藏状态栏、虚拟键SystemChrome.setEnabledSystemUIOverlays([]);return MaterialApp(title: &＃39;启动图demo&＃39;,color: Colors.white,theme: new ThemeData(brightness: Brightness.light,backgroundColor: Colors.white,platform: TargetPlatform.android),home: new _SplashScreen(),// routes: {// &＃39;/home&＃39;: (BuildContext context) &＃61;> new MyApp()// },);}
}class _SplashScreen extends StatefulWidget {&＃64;override_SplashScreenState createState() &＃61;> new _SplashScreenState();
}class _SplashScreenState extends State<_SplashScreen> {startTime() async {//设置启动图生效时间var _duration &＃61; new Duration(seconds: 3);return new Timer(_duration, navigationPage);}void navigationPage() {// Navigator.of(context).pushReplacementNamed(&＃39;/home&＃39;);// 由于上述路由到主页面之后&＃xff0c;showDialog后&＃xff0c;无法通过pop隐藏&＃xff08;反而是把当前界面给干掉了&＃xff0c;导致进度条一直转&＃xff09;&＃xff1b;// 所以这里发送消息到主页面&＃xff0c;进行启动画面的隐藏处理eventBus.fire(new SplashToHomeEvent(126, "toHome"));}&＃64;overridevoid initState() {super.initState();startTime();}&＃64;overrideWidget build(BuildContext context) {return new Scaffold(body: new Center(child: new Image.asset(&＃39;assets/images/splash.jpg&＃39;),),);}
}

import &＃39;package:event_bus/event_bus.dart&＃39;;EventBus eventBus &＃61; new EventBus();

&＃64;overridevoid initState() {super.initState();// 注销监听事件eventBus.on().listen((event) {setState(() {bShowHome &＃61; true;});});}

Future _onWillPop() {// 如果是启动画面的情况下&＃xff0c;不触发返回弹窗&＃xff1b;但是不允许点击退出&＃xff01;if (!bShowHome) {return Future.value(false);}return showDialog(context: context,builder: (context) &＃61;> new AlertDialog(title: new Text(&＃39;提示&＃39;),content: new Text(&＃39;您确定要退出应用?&＃39;),actions: [new FlatButton(onPressed: () &＃61;> Navigator.of(context).pop(false),child: new Text(&＃39;取消&＃39;),),new FlatButton(onPressed: () async {await quit();},child: new Text(&＃39;退出&＃39;),),],),) ?? false;}// 退出的一种方式static Future quit() async {await SystemChannels.platform.invokeMethod(&＃39;SystemNavigator.pop&＃39;);}