Book Image

Building Mobile Applications Using Kendo UI Mobile and ASP.NET Web API

Book Image

Building Mobile Applications Using Kendo UI Mobile and ASP.NET Web API

Overview of this book

With the world becoming more mobile, there is a growing need for mobile websites and applications. Building these from scratch is not a simple process. Kendo UI Mobile makes building websites and applications easier than ever before. Build applications for phones and tablets in no time at all and provide your user with a native look and feel.Building Mobile Applications Using Kendo UI Mobile and ASP.NET Web API helps you to understand the concept of building mobile applications using HTML5 based frameworks, specifically Kendo UI Mobile. It teaches you in a simple step-by-step manner how to create a service backend layer using ASP.NET Web API and how to integrate it with your front end mobile application, which is the missing piece of the puzzle for most developers who are new to mobile applications development. Learn everything from the basics of HTML5 to design and development of a mobile application using Kendo UI Mobile and ASP.NET Web API. Integrate them in the right way using extensible and maintainable JavaScript code.Starting with the basics of the Kendo UI platform, learn how to build a real world mobile application from scratch. You will explore the Kendo UI framework elements and integrate the sample mobile application with the ASP.NET Web API service. One of the most important things that you will learn from this book is how to organize your code using the JavaScript Revealing Module Pattern. You will also take a journey through Kendo UI Mobile widgets with lots of code samples hosted in jsFiddle. At the end of this book, you will complete the integration of the sample application and master fixing real world problems utilizing your newly acquired professional techniques that will save you time and effort.Building Mobile Applications Using Kendo UI Mobile and ASP.NET Web API will help you improve your mobile application development skills using hands-on examples, and will help you address the common problems faced by beginners as well as experienced web programmers. 

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Building Mobile Applications Using Kendo UI Mobile and ASP.NET Web API
Sep, 2013 | 256 pages
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Table of Contents (15 chapters)
Building Mobile Applications Using Kendo UI Mobile and ASP.NET Web API
Building Mobile Applications Using Kendo UI Mobile and ASP.NET Web API
Credits
Credits
About the Authors
About the Authors
Acknowledgments
Acknowledgments
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Building a Mobile Application Using HTML5
Building a Mobile Application Using HTML5
Native versus hybrid versus mobile websites
HTML5 and CSS3
Kendo UI – building cross-browser apps made easy
HTML5 mobile web application design guidelines
Summary
2
Building Your First Mobile Application
Building Your First Mobile Application
Preparing the development machine
First Kendo UI Mobile application
A real-world mobile app – Movie Tickets
Application object
UI experience across platforms
Summary
3
Service Layer with ASP.NET Web API
Service Layer with ASP.NET Web API
Creating a Web API service
Routing
Parameter binding
Building a service for the Movie Tickets application
Content Negotiation
An Image/PDF file as response
Securing Web API
Summary
4
Integration Using Framework Elements
Integration Using Framework Elements
DataSource
Templates
MVVM
Integrating with the Movie Tickets app
Summary
5
Exploring Mobile Widgets
Exploring Mobile Widgets
Kendo Mobile widgets basics
Mobile UI widgets
init and show events of the View widget
The ListView widget
The Button widget
The ButtonGroup widget
The Switch widget
The Pane widget
The PopOver widget
Summary
6
ActionSheet, ModalView, and More Widgets
ActionSheet, ModalView, and More Widgets
The ActionSheet widget
The ModalView widget
The SplitView widget
The Scroller widget
The ScrollView widget
The Touch widget
The Drawer widget
Summary
7
Movie Tickets Application – Complete Integration
Movie Tickets Application – Complete Integration
Completing the Web API service
Frontend views
The Movie list screen
Theaters list screen
Book Tickets screen
Creating the trailer videos slideshow screen
Summary
Index
Index

An Image/PDF file as response

It's a common requirement in most of the applications to retrieve a PDF or image file as response. It's quite easy to implement this scenario in Web API by writing a couple of lines of code in your action method to override the default media type of the response determined by Content Negotiation.

Let's open up the ValuesController.cs file, and add one more action method called GetImage(), which will return an image file in the Content folder of the service as shown: 

public HttpResponseMessage GetImage()
{
    byte[] bytes = System.IO.File.ReadAllBytes(
        HttpContext.Current.Server
        .MapPath("~/Content/Kendo.png"));
    var result = new HttpResponseMessage(HttpStatusCode.OK);
    result.Content = new ByteArrayContent(bytes);
    result.Content.Headers.ContentType 
        = new MediaTypeHeaderValue("image/png");
            
    return result;
}

Also refer to these two namespaces in the controller:

System.Web;
System.Web.Http;

The key to this implementation...

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