flex实现鼠标跟随十字架

效果图

 

添加侦听事件

 

As代码

1. canVas.addEventListener(MouseEvent.MOUSE_MOVE,mouseMove);  
2.         canVas.addEventListener(MouseEvent.CLICK,ShowLabel);  

		canVas.addEventListener(MouseEvent.MOUSE_MOVE,mouseMove); 				canVas.addEventListener(MouseEvent.CLICK,ShowLabel);

 

 

鼠标移动事件

As代码

1. private function mouseMove(event:MouseEvent):void  
2.   
3.             {  
4.   
5.                 dataX.x=event.stageX-25;  
6.   
7.                 dataX.y=canVasHeight+25;  
8.   
9.                   
10.   
11.                 dataY.y=event.stageY;  
12.   
13.                 dataY.x=8*itemWidth+50;  
14.   
15.                   
16.   
17.                 dataY.visible=true;  
18.   
19.                 dataX.visible=true;  
20.   
21.                   
22.   
23.                 dataX.text=event.localX.toString();  
24.   
25.                 dataY.text=event.localY.toString();  
26.   
27.             //dataY.text=IsXY.toString();  
28.   
29.                   
30.   
31.                     canVol.graphics.clear();  
32.   
33.   
34.   
35.                 if(IsXY)  
36.   
37.                 {  
38.   
39.                 canVol.graphics.lineStyle(1,0xFFFFFF,.5);  
40.   
41.                 canVol.graphics.moveTo(0,event.localY);  
42.   
43.                 canVol.graphics.lineTo((8*itemWidth),event.localY);  
44.   
45.                 canVol.graphics.moveTo(event.localX,0);  
46.   
47.                 canVol.graphics.lineTo(event.localX,canVas.height);   
48.   
49.   
50.   
51.                 }                 
52.   
53.             }  

private function mouseMove(event:MouseEvent):void  			{  				dataX.x=event.stageX-25;  				dataX.y=canVasHeight+25;  				  				dataY.y=event.stageY;  				dataY.x=8*itemWidth+50;  				  				dataY.visible=true;  				dataX.visible=true;  				  				dataX.text=event.localX.toString();  				dataY.text=event.localY.toString();  			//dataY.text=IsXY.toString();  				  					canVol.graphics.clear();    				if(IsXY)  				{  			 	canVol.graphics.lineStyle(1,0xFFFFFF,.5);                  canVol.graphics.moveTo(0,event.localY);                  canVol.graphics.lineTo((8*itemWidth),event.localY);                  canVol.graphics.moveTo(event.localX,0);                  canVol.graphics.lineTo(event.localX,canVas.height);     				}				  			}

鼠标单击改变是否显示状态

As代码

1. private function ShowLabel(event:MouseEvent):void  
2.         {  
3.   
4.             if(IsXY)  
5.             {  
6.                 IsXY=false;  
7.                   
8.             }  
9.             else  
10.             {  
11.                 IsXY=true;  
12.             }