Book Image

Flash Development for Android Cookbook

By : Joseph Labrecque
Book Image

Flash Development for Android Cookbook

By: Joseph Labrecque

Overview of this book

Flash has now arrived to Android — the fastest growing smartphone platform. This offers massive opportunities for Flash developers who want to get into mobile development. At the same time, working on smartphones will introduce new challenges and issues that Flash developers may not be familiar with. The Flash Development for Android Cookbook enables Flash developers to branch out into Android mobile applications through a set of essential, easily demonstrable recipes. It takes you through the entire development workflow: from setting up a local development environment, to developing and testing your application, to compiling for distribution to the ever-growing Android Market. The Flash Development for Android Cookbook starts off with recipes that cover development environment configuration as well as mobile project creation and conversion. It then moves on to exciting topics such as the use of touch and gestures, responding to device movement in 3D space, working with multimedia, and handling application layout. Essential tasks such as tapping into native processes and manipulating the file system are also covered. We then move on to some cool advanced stuff such as Android-specific device permissions, application debugging and optimization techniques, and the packaging and distribution options available on the mobile Android platform. In a nutshell, this cookbook enables you to get quickly up to speed with mobile Android development using the Flash Platform in ways that are meaningful and immediately applicable to the rapidly growing area of mobile application development.
Table of Contents (18 chapters)
Flash Development for Android Cookbook
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface

Detecting screen orientation changes


As most Android devices have at least two screen orientations, that is, portrait and landscape, it is useful when developing for these devices to know what the current orientation is in order to properly display application user interface elements.

How to do it…

We will register an event listener on our Stage to listen for StageOrientationEvent changes:

  1. 1. First, import the following classes into your project:

    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageOrientation;
    import flash.display.StageScaleMode;
    import flash.events.StageOrientationEvent;
    import flash.text.TextField;
    import flash.text.TextFormat;
    
  2. 2. We will now declare a TextField and TextFormat pair to relay text messages onto the device display:

    private var traceField:TextField;
    private var traceFormat:TextFormat;
    
  3. 3. Now, we will continue to set up our TextField, apply a TextFormat, and add it to the DisplayList. Here, we create a method to perform all of...