Book Image

Xamarin 4 By Example

By : Engin Polat, Mark Radacz
Book Image

Xamarin 4 By Example

By: Engin Polat, Mark Radacz

Overview of this book

The mobile app market is increasing exponentially every year. Xamarin Studio with its modern and powerful IDEs makes creating applications a lot easier by simplifying the development process. Xamarin will allow you and your team to create native applications by taking advantage of one of the most evolved programming language in the world: C#. This book will provide you with the basic skills you need to start developing mobile apps using C# and Xamarin. By working through the examples in each chapter, you will gain hands-on experience of creating a complete app that is fully functional by all means. Finally, you will learn to publish the app you created on the app market. Each project in this book will take you one step closer to becoming a professional app developer.
Table of Contents (16 chapters)
Xamarin 4 By Example
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
7
Monkey Puzzle Game – Processing Images

Services


Services are reusable application components shared to other components via a communication protocol, typically over a network. A service can provide more than one operation. The application logic of a service is exposed via API (Application Program Interface). There are two major classes of web service: REST-compliant web services and Arbitrary web services.

When we need our app to write data in a central server or read data from it, we always need to write a service server side that allows us to open a communication channel.

Web Service Description Language

A particular type of Arbitrary web service is described by the Web Service Description Language (WSDL). WSDL is an XML-based interface definition language that is used for describing the functionality offered by a web service.

To use a WSDL, we need to right-click on the project and select Add a Web Reference:

In the web service URL, we have to put the address of the server that provides the web service. Xamarin Studio automatically...