Book Image

Flash iOS Apps Cookbook

By : Christopher Caleb
Book Image

Flash iOS Apps Cookbook

By: Christopher Caleb

Overview of this book

The latest version of Flash Professional can directly target iOS, allowing Flash developers to write applications that will run natively on Apple's iPhone, iPad, and iPod touch. What's more, with Apple loosening its restrictions on third-party technologies, apps written in Flash can now be sold and distributed within the App Store.Flash iOS Apps Cookbook provides the recipes required to build native iOS apps using your existing knowledge of the Flash platform. Whether you want to create something new or simply convert an existing Flash project, the relevant steps and techniques will be covered, helping you achieve your goal.Learn how to configure and use Flash Professional for iOS development by writing and deploying a simple app to a device. Implement many iOS-specific features such a multi-touch, the virtual keyboard, camera support, screen orientation and the Retina display. Overcome the limitations of mobile development by mastering hardware acceleration and optimization. Whether you're an enthusiast or professional developer, the Flash iOS Apps Cookbook is your toolkit to creating high-quality content for iPhone, iPad and iPod touch.
Table of Contents (21 chapters)
Flash iOS Apps Cookbook
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Responding to accelerometer changes


The accelerometer provides access to data that represents the device's location or movement along a three-dimensional axis. When motion is detected, it is returned as data, which can be accessed by ActionScript.

This recipe will show you how to take advantage of the accelerometer found in iOS devices.

Getting ready

An FLA has been provided as a starting point.

Open chapter9\recipe4\recipe.fla from the book's accompanying code bundle into Flash Professional.

You will find five dynamic text fields positioned on the stage. Below them is a movie clip with an instance name of arrow. We will populate each text field with data retrieved from the device's accelerometer and rotate the movie clip to reflect physical changes in the device's orientation.

Also notice the stage's dimensions are set to 480x320. For this recipe, landscape orientation will be used.

How to do it...

Perform these steps to listen for and respond to accelerometer changes:

  1. Create a document class and...