鼠标手势替换闪烁不停地问题

2010-03-10 11:15

今天为一个窗口写了个方法，大概意思是让target可以拖动ZSWindow，另外当鼠标移动到target上时，会有个十字拖动符号替换系统鼠标手势。可是我按下面做了后，发现changeMouseMark，stopMouseMark，dragWindow会不停地自动执行，然后鼠标也在那一直闪个不停。不知道为什么。
代码 
 1 public class ZSWindow extends Sprite
 2 {
 3 
 4        public function ZSWindow(id:String){
 5             super();
 6        }
 7 
 8        public function setMovetarget(target:DisplayObject):void{
 9              if(mouseMark==null){
10                       mouseMark = new DragMouse();
11                       mouseMark.visible = false;
12                       addChild(mouseMark);
13             }
14           moveTarget = target;
15            moveTarget.addEventListener(MouseEvent.MOUSE_OVER,changeMouseMark);
16            moveTarget.addEventListener(MouseEvent.MOUSE_DOWN,dragWindow);
17            moveTarget.addEventListener(MouseEvent.MOUSE_OUT,stopMouseMark);
18        }
19   
20        private function dragWindow(event:MouseEvent):void{
21            stage.addEventListener(MouseEvent.MOUSE_UP,stopDragWinddow);
22            startDrag(false,new Rectangle(-_width+35,-_height+35,stage.stageWidth+_width- 70,stage.stageHeight+_height-70));
23            event.updateAfterEvent();
24       }
25   
26         private function stopDragWinddow(event:MouseEvent):void{
27           stopDrag();
28           stage.removeEventListener(MouseEvent.MOUSE_UP,stopDragWinddow);
29         }
30   
31        private function changeMouseMark(event:MouseEvent):void{
32           Mouse.hide();
33           if(mouseMark.visible==false){
34            mouseMark.visible = true;
35           }
36           stage.addEventListener(MouseEvent.MOUSE_MOVE,changeMousePosition);
37         }
38   
39         private function changeMousePosition(event:MouseEvent):void{
40          mouseMark.x = mouseX;
41           mouseMark.y = mouseY;
42          setChildIndex(mouseMark,numChildren-1);
43         event.updateAfterEvent();
44         }
45   
46       private function stopMouseMark(event:MouseEvent):void{
47             Mouse.show();
48           if(mouseMark&&mouseMark.visible){
49             mouseMark.visible = false;
50            }
51            if(stage){
52            stage.removeEventListener(MouseEvent.MOUSE_MOVE,changeMousePosition);
53             }
54        }
55 
56 }
57 
58  

 

 1 package com.zs.panel.com
 2 {
 3  import flash.display.Bitmap;
 4 
 5 [Embed(source="com/assets/images/drag2.png")]
 6 public class DragMouse extends Bitmap
 7 {
 8 public function DragMouse()
 9 {
10 super();
11 }
12 }
13 }

 

后来到天地会问了下，然后我在上面代码加上了mouseMark.mouseEnabled = false;之后就不闪烁了。

问题所在：当我鼠标移动到moveTarget 上时，按理来说应该是系统鼠标手势被隐藏，替换的鼠标手势出现。但是，由于用来替换的鼠标手势的图片也能接收鼠标事件，moveTarget 就会执行moveTarget.addEventListener(MouseEvent.MOUSE_OUT,stopMouseMark);之后mouseMark被隐藏，鼠标焦点回到了moveTarget 上，之后mouseMark又出现，于是就闪烁不停。

说明：mouseEnabled 属性可以使物件不再接收鼠标事件，mouseChildren属性可以使子项也不再接收鼠标事件。收益了！再次感谢！

posted @ 2010-05-31 10:01  硕气书生  Views(736)  Comments(0)  Edit  收藏  举报