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

Accessing raw touchpoint data


Sometimes the predefined gestures that are baked into Flash Player and AIR are not enough for certain application interactions. This recipe will demonstrate how to access raw touch data reported by the operating system through Flash Player or AIR APIs.

How to do it...

To read raw touch data in your project, perform the following steps:

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

    import flash.display.StageScaleMode;
    import flash.display.StageAlign;
    import flash.display.Stage;
    import flash.display.Sprite;
    import flash.events.TouchEvent;
    import flash.text.TextField;
    import flash.text.TextFormat;
    import flash.ui.Multitouch;
    import flash.ui.MultitouchInputMode;
    
  2. 2. Declare a TextField and TextFormat object to allow visible output upon the device:

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