Guys welcome back....
The below code will illustrate, how EVENT-FLOW mechanism works in AS3.
Just make two files naming -
EventFlow.as and
Button.as
Copy-paste the below written code, execute the EventFlow.swf, and watch the trace() results in debugger. You will surely get an-practical idea, how the event-flow works in ActionScript3.
EventFlow.as
package
{
import flash.display.Sprite;
import flash.text.TextField;
import flash.events.MouseEvent;
import flash.display.DisplayObject;
public class EventFlow extends Sprite
{
private var uiContainer:Sprite;
private var buttonContainer:Sprite;
private var uiLabel:TextField;
private var stopButton:Button;
private var playButton:Button;
private var pauseButton:Button;
public function EventFlow () {
uiContainer = new Sprite();
uiContainer.name = "uiContainer";
addChild(uiContainer);
buttonContainer = new Sprite();
buttonContainer.graphics.beginFill(0x666666);
buttonContainer.graphics.drawRect(0, 0, 420, 50);
buttonContainer.name = "buttonContainer";
buttonContainer.y = 20;
uiContainer.addChild(buttonContainer);
uiLabel = new TextField();
uiLabel.name = "uiLabel";
uiLabel.text = "Audio Controls";
uiLabel.width = 80;
uiLabel.height = 15;
uiContainer.addChild(uiLabel);
stopButton = new Button("Stop");
stopButton.x = 10;
stopButton.y = 10;
buttonContainer.addChild(stopButton);
playButton = new Button("Play");
playButton.x = 160;
playButton.y = 10;
buttonContainer.addChild(playButton);
pauseButton = new Button("Pause");
pauseButton.x = 310;
pauseButton.y = 10;
buttonContainer.addChild(pauseButton);
uiContainer.addEventListener(MouseEvent.CLICK, onClick);
}
private function onClick(event:MouseEvent):void {
trace ("Click Received");
trace ("Event Target: ", DisplayObject(event.target).name);
trace ("Current Target: ", DisplayObject(event.currentTarget).name);
}
public override function toString():String {
return "";
}
}
}
Button.as
package
{
import flash.display.Sprite;
import flash.text.TextField;
public class Button extends Sprite
{
private var labelField:TextField;
public function Button (label:String = "button") {
graphics.beginFill(0x3366CC);
graphics.drawRect(0, 0, 100, 30);
labelField = new TextField();
labelField.mouseEnabled = false;
labelField.selectable = false;
labelField.text = label;
labelField.x = 10;
labelField.y = 10;
labelField.width = 80;
labelField.height = 20;
addChild(labelField);
}
}
}
Wednesday, March 10, 2010
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment