navigator

// following code is checked in 2016/01/13
import 'package:flutter/widgets.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
​
void main() {
  print("=========");
  String title = "TITLE";
  ThemeData theme = new ThemeData.light();
  Map<String, RouteBuilder> routes = {
    "/": (RouteArguments args) => new MyStatlessComponentRoot(args),
    "/text": (RouteArguments args) => new MyStatlessComponentText(args),
    "/image": (RouteArguments args) => new MyStatlessComponentImage(args)
  };
  MaterialApp app = new MaterialApp(title: title, theme: theme, routes: routes);
  runApp(app);
}
​
class MyStatlessComponentRoot extends StatelessComponent {
  RouteArguments args;
  MyStatlessComponentRoot(this.args) {}
  Widget build(BuildContext context) {
    Widget content = new Material(child: new Text("ROOT", style: new TextStyle(fontSize: 100.0)));
    GestureDetector gesture = new GestureDetector(child: content, onTap: () {
      // args.context == build'args context
      Navigator.pushNamed(context, "/image");
    }, onLongPress: () {
      Navigator.pushNamed(context,"/text");
    });
    return new Center(child: gesture);
  }
}
​
class MyStatlessComponentImage extends StatelessComponent {
  RouteArguments args;
  MyStatlessComponentImage(this.args) {}
  Widget build(BuildContext context) {
    Widget content = new Material(child: new AssetImage(name:"assets/a.png",bundle:rootBundle, width: 500.0, height: 500.0));
    GestureDetector gesture = new GestureDetector(child: content, onTap: () {
      Navigator.pop(context);
    });
    return new Center(child: gesture);
  }
}
​
class MyStatlessComponentText extends StatelessComponent {
  RouteArguments args;
  MyStatlessComponentText(this.args) {}
  bool isPop = false;
  Widget build(BuildContext context) {
    Widget content = new Material(
        child: new Text("Hello", style: new TextStyle(fontSize: 100.0)));
    GestureDetector gesture = new GestureDetector(child: content, onTap: () {
      Navigator.pop(context);
    });
    return new Center(child: gesture);
  }
}

#flutter.yaml
assets:
 - assets/icon.jpeg
 - assets/a.png