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

Using gestures to swipe a display object


Swipe is one of the most common gestures on Android devices, and with good reason. Whether flipping through a series of photographs, or simply moving between states in an application, the swipe gesture is something users have come to expect. A swipe gesture is accomplished by simply touching the screen and swiping up, down, left, or right across the screen quickly in the opposite direction.

How to do it...

This example draws a square within a Shape object using the Graphics API, adds it to the Stage, and then sets up a listener for swipe gesture events in order to move the Shape instance against the bounds of our screen in accordance with the direction of swipe:

  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.display.Shape;
    import flash.events.TransformGestureEvent;
    import flash.ui.Multitouch;
    import...