Flex: AIR程序靠屏幕边缘收起 屏幕边缘吸附

让程序在靠到屏幕边缘的时候，向左或者右收起程序，类似QQ一样

bbs.airia.cn/forum.php?mod=viewthread&tid=43346&page=1

<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" 
					   xmlns:s="library://ns.adobe.com/flex/spark" 
					   xmlns:mx="library://ns.adobe.com/flex/mx"
					   width="900"
					   height="650"
					   creationComplete="windowedapplication1_creationCompleteHandler(event)">

	<fx:Script>
		<!--[CDATA[
			import com.greensock.TweenLite;
			
			import mx.core.FlexGlobals;
			import mx.events.FlexEvent;
			
			protected function button1_clickHandler(event:MouseEvent):void
			{
				this.width = 600;
				this.height = 500;
			}
			protected function button2_clickHandler(event:MouseEvent):void
			{
				this.width = 900;
				this.height = 650;
			}
			
			private var adsorption:String = 'null';//吸附的轴
			private var AppWidth:Number;
			
			private function overHander(e:MouseEvent):void//鼠标触摸
			{
				//当前应用程序在屏幕的位置
				var x1:Number = FlexGlobals.topLevelApplication.stage.nativeWindow.x;
				var y1:Number = FlexGlobals.topLevelApplication.stage.nativeWindow.y;
				
				if(adsorption == 'x')//已经吸附<沿X轴>
				{
					if(x1 < 0)//已在屏幕左边吸附
					{
						TweenLite.to(FlexGlobals.topLevelApplication.stage.nativeWindow,0.4,{x:-1});//从屏幕左侧滑出
					}
					else if(x1+ this.width> AppWidth)//已在屏幕右边吸附
					{
						TweenLite.to(FlexGlobals.topLevelApplication.stage.nativeWindow,0.4,{x:AppWidth-this.width+1});//从屏幕右侧滑出
					}
				}
				
				if(adsorption == 'y')//已经吸附<沿Y轴>
				{
					if(y1 < 0)//已在屏幕上边吸附
					{
						TweenLite.to(FlexGlobals.topLevelApplication.stage.nativeWindow,0.4,{y:-1});//从屏幕上边滑出
					}
				}
			}
			
			private function outHander(e:MouseEvent):void//鼠标移出
			{
				var x1:Number = FlexGlobals.topLevelApplication.stage.nativeWindow.x;
				var y1:Number = FlexGlobals.topLevelApplication.stage.nativeWindow.y;
				adsorption = 'null';
				
				if(x1 <= 0)//当前程序在屏幕左侧
				{
					adsorption = 'x';
					TweenLite.to(FlexGlobals.topLevelApplication.stage.nativeWindow,0.4,{x:-this.width+2});
				}
				else if(x1+ this.width>= AppWidth)//当前程序在屏幕右侧
				{
					adsorption = 'x';
					TweenLite.to(FlexGlobals.topLevelApplication.stage.nativeWindow,0.4,{x:AppWidth-2});
				}
				
				if(y1 <= 0 && adsorption == 'null')//当前程序在屏幕上边
				{
					adsorption = 'y';
					TweenLite.to(FlexGlobals.topLevelApplication.stage.nativeWindow,0.4,{y:-this.height+2});
				}
			}

			protected function windowedapplication1_creationCompleteHandler(event:FlexEvent):void
			{
				//鼠标触摸了应用程序
				this.addEventListener(MouseEvent.MOUSE_OVER,overHander);
				//鼠标移出了应用程序
				this.addEventListener(MouseEvent.MOUSE_OUT,outHander);
				this.AppWidth = Capabilities.screenResolutionX;
				trace("this.AppWidth:"+this.AppWidth);
			}

		]]-->
	</fx:Script>

	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
	</fx:Declarations>
	<s:Button x="100" y="15" label="按钮" click="button1_clickHandler(event)"/>
	<s:Button x="9" y="15" label="按钮" click="button2_clickHandler(event)"/>
	<mx:Image x="10" y="44" width="801" height="601" source="images/New-UI_main.png"/>
</s:WindowedApplication>

ps.

Flex3的wipeleft和Image组件完成显示隐藏功能

http://www.liuzm.com/article/flex/100315.htm