Cacher is the code snippet organizer for pro developers

import 'package:flutter/material.dart';

void main() {
  runApp(new MaterialApp(
      title: 'Flutter Demo',
      theme: new ThemeData(primarySwatch: Colors.blue),
      home: new FlutterDemo()));
}

class FlutterDemo extends StatelessWidget {
  FlutterDemo({Key key}) : super(key: key);

  void push(BuildContext context) {
    Navigator.push(context,
        new MaterialPageRoute(builder: (BuildContext context) {
      return new OtherRoute();
    }));
  }

  void pushSearch(BuildContext context) {
    Navigator.push(context,
        new MaterialPageRoute(builder: (BuildContext context) {
      return new SearchScreen();
    }));
  }

  @override
  Widget build(BuildContext context) {
    return new Scaffold(
        appBar: new AppBar(title: new Text("Demo"), actions: [
          new IconButton(
              icon: Icon(Icons.search), onPressed: () => pushSearch(context)),
          new PopupMenuButton(onSelected: (String item) {
            switch (item) {
              case 'push':
                push(context);
                break;
              case 'pushSearch':
                pushSearch(context);
                break;
            }
            //push(context);
          }, itemBuilder: (BuildContext context) {
            return [
              new PopupMenuItem(value: "push", child: new Text("push route")),
              new PopupMenuItem(value: "pushSearch", child: new Text("push search")),
            ];
          })
        ]),
        body: new Column(children: [
          new RaisedButton(
              child: new Text("push route"), onPressed: () => push(context)),
          new PopupMenuButton(onSelected: (String item) {
            if (item == "push") {
              push(context);
            } else {
              pushSearch(context);
            }
            //push(context);
          }, itemBuilder: (BuildContext context) {
            return [
              new PopupMenuItem(value: "push", child: new Text("push route")),
              new PopupMenuItem(value: "pushSearch", child: new Text("push search")),

            ];
          })
        ]));
  }
}

class OtherRoute extends StatelessWidget {
  OtherRoute({Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return new Scaffold(
        appBar: new AppBar(title: new Text("other route")),
        body: new Center(child: new Text("push route")));
  }
}

class SearchScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      body: Center(
        child: Text('Search Screen'),
      ),
    );
  }
}