InkWell samples

inkwellsample.dart

import 'package:flutter/material.dart';

main() {    
    runApp(new TestSample());
}

class TestSample extends StatelessWidget{
    @override
    Widget build(BuildContext context) {
         var widget = new MaterialApp(
                home: new Scaffold(
                    body: new Center( 
                        child: new OuterContainerStack(),
                    )
                ),
            );
            return widget;
        }
}

class OuterContainerStack extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
        return new Stack(
            children: <Widget>[
                new OuterContainer(),
                new Positioned.fill(
                    child: new Material(
                        color: Colors.transparent,
                        child:new InkWell(
                            onTap: () {
                                print("Outer Container");
                            }
                        )
                    )
                )
            ],
        );

    }
}

class OuterContainer extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
        return new Container(
            width: 300.0,
            height: 300.0,
            color: Colors.blueAccent,
            child: new Column(
                mainAxisAlignment: MainAxisAlignment.center,
                crossAxisAlignment: CrossAxisAlignment.center,
                children: <Widget>[
                    new InnerContainerStack()
                ],
            ),
        );

    }
}

class InnerContainerStack extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
        return new Stack(
            children: <Widget>[
                new InnerContainer(),
                new Positioned.fill(
                    child: new Material(
                        color: Colors.transparent,
                        child:new InkWell(
                            onTap: () {
                                print("Inner Container");
                            }
                        )
                    )
                )
            ],
        );

    }
}

class InnerContainer extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
        return new Container(
            width: 200.0,
            height: 200.0,
            color: Colors.redAccent
        );

    }
}