ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Basics of user interaction
square.y = startY;
square.tabEnabled = true;
square.tabIndex = tabNumber;
square.addEventListener(FocusEvent.FOCUS_IN, changeColor);
addChild(square);
}
function changeColor(event:FocusEvent):void
{
event.target.transform.colorTransform = getRandomColor();
}
function getRandomColor():ColorTransform
{
// Generate random values for the red, green, and blue color channels.
var red:Number = (Math.random() * 512) - 255;
var green:Number = (Math.random() * 512) - 255;
var blue:Number = (Math.random() * 512) - 255;
}
// Create and return a ColorTransform object with the random colors.
return new ColorTransform(1, 1, 1, 1, red, green, blue, 0);
Discovering input types
Flash Player 10.1 and later, Adobe AIR 2 and later
The Flash Player 10.1 and Adobe AIR 2 releases introduced the ability to test the runtime environment for support of
specific input types. You can use ActionScript to test if the device on which the runtime is currently deployed:
Supports stylus or finger input (or no touch input at all).
Has a virtual or physical keyboard for the user (or no keyboard at all).
Displays a cursor (if not, then features that are dependent upon having a cursor hover over an object do not work).
The input discovery ActionScript APIs include:
flash.system.Capabilities.touchscreenType property: A value provided at runtime indicating what input type is
supported in the current environment.
flash.system.TouchscreenType class: A class of enumeration value constants for the Capabilities.touchscreenType
property.
flash.ui.Mouse.supportsCursor property: A value provided at runtime indicating if a persistent cursor is available
or not.
flash.ui.Keyboard.physicalKeyboardType property: A value provided at runtime indicating if a full physical
keyboard is available or a numeric keypad, only, or no keyboard at all.
flash.ui.KeyboardType class: A class of enumeration value constants for the
flash.ui.Keyboard.physicalKeyboardType property.
flash.ui.Keyboard.hasVirtualKeyboard property: A value provided at runtime indicating if a virtual keyboard is
provided to the user (either in place of a physical keyboard, or in addition to a physical keyboard).
Last updated 6/6/2012
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