ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Touch, multitouch and gesture input
Multitouch.inputMode = MultitouchInputMode.TOUCH_POINT;
var mySprite:Sprite = new Sprite();
mySprite.graphics.beginFill(0x336699);
mySprite.graphics.drawRect(0,0,40,40);
addChild(mySprite);
mySprite.addEventListener(TouchEvent.TOUCH_BEGIN, onTouchBegin);
mySprite.addEventListener(TouchEvent.TOUCH_MOVE, onTouchMove);
mySprite.addEventListener(TouchEvent.TOUCH_END, onTouchEnd);
function onTouchBegin(evt:TouchEvent) {
evt.target.startTouchDrag(evt.touchPointID);
evt.target.scaleX *= 1.5;
evt.target.scaleY *= 1.5;
}
function onTouchMove(evt:TouchEvent) {
evt.target.alpha = 0.5;
}
function onTouchEnd(evt:TouchEvent) {
evt.target.stopTouchDrag(evt.touchPointID);
evt.target.width = 40;
evt.target.height = 40;
evt.target.alpha = 1;
}
Gesture event handling
Flash Player 10.1 and later, Adobe AIR 2 and later
Handle gesture events in the same way as basic touch events. You can listen for a series of gesture events defined by
the event type constants in the TransformGestureEvent class, the GestureEvent class and the
PressAndTapGestureEvent class.
To handle a gesture touch event:
1 Set your application to handle gesture input by setting the flash.ui.Multitouch.inputMode property to
MultitouchInputMode.GESTURE.
2 Attach an event listener to an instance of a class that inherits properties from the InteractiveObject class, such as
Sprite or TextField.
3 Specify the type of gesture event to handle.
4 Call an event handler function to do something in response to the event.
For example, the following code displays a message when the square drawn on mySprite is swiped on a touch-enabled
screen:
Last updated 6/6/2012
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