Book Image

iPhone JavaScript Cookbook

By : Arturo Fernandez Montoro
Book Image

iPhone JavaScript Cookbook

By: Arturo Fernandez Montoro

Overview of this book

Undoubtedly, the iPhone is one of the most exciting mobile devices in the world. Its iOS is used in other Apple devices such as the iPad and iPod Touch. With this book you'll learn how to build and develop applications for these devices without applying Apple's burdensome and at times restrictive technologies. Just use your experience and knowledge combined with web front-end technologies like JavaScript to build quality web apps. Nobody will know you haven't used Objective-C and Cocoa. The iPhone JavaScript Cookbook offers a set of practical and clear recipes with a step-by-step approach for building your own iPhone applications applying only web technologies such as JavaScript and AJAX. Web developers won't need to learn a new programming language for building iOS applications with a native look and feel. The first part of the book introduces you to the world of iPhone applications. Understanding how it works is required for designing good user interfaces for this device. You will continue learning about how to apply multimedia features to your applications. Common features of web applications, such as AJAX and SQL, can also be applied to our iPhone applications. The third part of the book explains how to deal with specific features of iPhone such as the accelerometer. At the end, you learn how to offer additional features through external websites. With the iPhone JavaScript Cookbook, you will be able to develop outstanding web applications with a for Apple's mobile devices, offering your users all of the advantages of the native look and feel.
Table of Contents (17 chapters)
iPhone JavaScript Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Taking and displaying pictures


You'll surely find it useful to use the camera of your iPhone. By default, a basic application is included with the phone that allows you to take pictures and save them automatically to the internal memory. You can then access your pictures through the Photo Library application.

However, it could be interesting to develop our own applications that can take and display pictures inside a container or other kind of element. For example, we can implement a feature for our application which allows taking and displaying pictures in a specific area of the screen delimited by a container element.

Most of the recipes in this book are focused on web applications instead of native applications. It is possible to build native applications using CSS, HTML, JavaScript, and the PhoneGap framework. Some features of the iOS operating system are inaccessible from a pure web application, such as taking and displaying pictures. The process we'll use to interact with the iPhone...