first we may have flash called preloader that contain a movie clip name preloader. Preloader has it own class link called preloader. Inside preloader in has a movie clip called progress bar that given instant name called progBar.
We have a class called main.as that is link from prelader.fla and the code below
package{
import flash.display.MovieClip;
import flash.events.Event;
/**
* @oudom chheang
*/
public class Main extends MovieClip
{
/**
* Constructor
* Stop timeline and add event listener to preloader.
*/
public function Main()
{
this.stop();
preloader.addEventListener( Event.COMPLETE , _initContent );
}
/**
* Load has finished, remove preloader and preceed to next frame.
*/
private function _initContent(evt:Event):void
{
preloader.removeEventListener( Event.COMPLETE , _initContent );
this.removeChild(preloader);
nextFrame();
}
}
}
We have a class called preloader.as this will
package
{
import flash.display.Sprite;
import flash.display.LoaderInfo;
import flash.events.Event;
/**
* @oudom chheang
*/
public class Preloader extends Sprite
{
/**
* Alias for stage LoaderInfo instance
*/
private var _targetLoaderInfo:LoaderInfo;
/**
* The percent loaded
*/
private var _loadPercent:Number = 0;
/**
* Constructor
* Listen for when the preloader has been added to the stage
* so that the progress of the remaining load can be monitored.
*/
public function Preloader()
{
trace("win");
this.addEventListener( Event.ADDED_TO_STAGE , _init );
}
/**
* Initialize variables.
* Set initial width of the progress bar to 0
* and listen for enter frame event.
*/
private function _init(evt:Event):void
{
_targetLoaderInfo = stage.loaderInfo;
progBar.scaleX = 0;
this.removeEventListener( Event.ADDED_TO_STAGE , _init );
this.addEventListener(Event.ENTER_FRAME, _onCheckLoaded);
}
/**
* Check the status of the load, once complete dispatch a complete event.
*/
private function _onCheckLoaded(evt:Event):void
{
_loadPercent = _targetLoaderInfo.bytesLoaded / _targetLoaderInfo.bytesTotal;
progBar.scaleX = _loadPercent;
if (progBar.scaleX == 1)
{
this.removeEventListener(Event.ENTER_FRAME, _onCheckLoaded);
this.dispatchEvent( new Event(Event.COMPLETE) );
}
}
}
}