Flutter提示之Navigator operation requested with a context that does not include a Navigator.
1 、问题
用Flutter写了页面跳转，提示错误如下
Navigator operation requested with a context that does not include a Navigator.2 、我的代码
void main() {runApp(MyApp1());
}class MyApp1 extends StatelessWidget {@overrideWidget build(BuildContext context) {return MaterialApp(title: 'open url',home: Scaffold(appBar: AppBar(title: Text('hello flutter'),),body: Column(mainAxisAlignment: MainAxisAlignment.center,mainAxisSize: MainAxisSize.min,children: <Widget>[FlatButton(child: Text("go to new page"),textColor: Colors.blue,onPressed: () {Navigator.push(context, MaterialPageRoute(builder:(context) => NewPage()));},),],),),);}
}class NewPage extends StatelessWidget {@overrideWidget build(BuildContext context) {return Scaffold(appBar: AppBar(title: Text("hello word"),),body: Center(child: Text("this is new page"),),);}
}3、原因
Navigator operation requested with a context that does not include a Navigator.说明这个context上下文不一致，我们看下Navigator的继承关系
class Navigator extends StatefulWidget {
}但是我的代码是这样的
class MyApp1 extends StatelessWidget {
}我们需要使用StatefulWidget的Context
4、解决办法
void main() {runApp(MaterialApp(title: "Navigation basics",home: MyApp1(),));
}用MaterialApp启动
class MaterialApp extends StatefulWidget {
***
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