Book Image

Windows Phone 8 Application Development Essentials

By : Tomasz Szostak
Book Image

Windows Phone 8 Application Development Essentials

By: Tomasz Szostak

Overview of this book

<p>Windows Phone 8 replaces Windows Phone 7 devices with the Windows NT kernel found on many Windows 8 components. Windows 8 will give you more options to develop better and more visually appealing PC and Tablet applications.</p> <p>A practical guide that will show you how you how to create testable MVVM applications keeping in mind the best UI practices. You will learn how to integrate peripheral sensors and social portals like Facebook and Twitter into your applications. This book shows the advantages of using modern patterns instead of the traditional way of programming.</p> <p>Starting with a Windows Phone UI description, the guide then takes you through the world of fast and fluid design guidelines. After that, you will be shown the beauty of C# and MVVM advantages, finishing with clear descriptions of mobile-application integration with peripherals and social media. Clear and well-described examples throughout will help you become a WP8 developer.</p> <p>You will also learn how to test your applications using Unit Test cut dependencies in your methods using Mocks, and use the newest features of C# such as asynchronous methods. If you are more of a designer than a developer, then there is also an explanation on how to create a consistent look and feel for Windows Phone applications.</p>
Table of Contents (12 chapters)

Isolated storage


Isolated storage is a space designed for storing data that is used in an application. Why isolated? Because this piece of memory is available only within an application; other applications don't have access to the items stored in the isolated storage. It means that Windows Phone protects application data from unauthorized access; more importantly, such protection is done automatically. Things that can be written into isolated storage depend only on implementation and the author's ideas and can include:

  • Temporary files, often used as a kind of helper or for saving the state of an application. It worth remembering that such files should be cleaned when they are no longer in use.

  • Images or other media files.

  • Files that are used as storage for data in applications such as serialized XML files or text files.

  • Application local settings.

The preceding image shows how isolated storage resembles a single application; each application has its own storage like this.