尝试从 eventLlistener 获取 id 时出现问题
我正在尝试通过事件监听器将 id 发送到它的监听函数。现在，当我仅使用代码创建按钮时，这可以工作，但是当我决定使用现有的 movieClips 时，它停止了，我不知道为什么。
这是我的按钮代码。
private function addButtons(){
button1 = new ButtonMC();
//add the buttons
button1.id = 1;
button1.addEventListener(MouseEvent.CLICK, gameClick, false, 0, true);
button1.buttonMode = true;
addChild(button1);
trace("button1 = "+button1.id);
跟踪
发现button1.id没有问题。到目前为止还可以。 当我运行此函数时，侦听器函数报告为“未定义”。这是我的监听器函数代码。 （不是全部......只是相关部分）。
private function gameClick(evt:MouseEvent):void{
trace("clicked "+evt.target.id);
var gameTypeID = evt.target.id;
该代码
位于它自己的单独的类中，该类生成开始屏幕。 movieClip 按钮是库中导出为 ButtonMC 的 MC 的副本。我完全不明白为什么这现在不起作用。当它确实工作时，“生成”按钮仍然是正常的影片剪辑，所以我看不出有什么区别。也许这是一个范围问题，但是由于所有这些代码都在同一个类中，我不明白为什么这会成为问题。
有人能发现我的白痴并让我知道吗？非常感谢您一如既往的帮助。
I'm trying to send an id via an event listener to it's listening function. Now this worked before when I created the buttons just using code, but when I decided to use existing movieClips it stopped and I can't work out why.
Here's my button code.
private function addButtons(){
button1 = new ButtonMC();
//add the buttons
button1.id = 1;
button1.addEventListener(MouseEvent.CLICK, gameClick, false, 0, true);
button1.buttonMode = true;
addChild(button1);
trace("button1 = "+button1.id);
}
the trace finds the button1.id no problem. So ok so far.
When I run this the listener function reports back as 'undefined'. Here is my listener function code. (not all of it.. just the relevant part).
private function gameClick(evt:MouseEvent):void{
trace("clicked "+evt.target.id);
var gameTypeID = evt.target.id;
}
This code sits in it's own separate class which generates the start screen. The movieClip buttons are duplicates of an MC in the library which is exporting as ButtonMC. I'm totally stumped as to why this is not working now. When it did work the "generated" buttons where still normal movieClips so I see no difference there. Maybe it's a scope thing, but with all of this code in the same class I can't see why that would be the issue.
Can anyone spot my idiocy and let me know please? Your help as always is greatly appreciated.
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我的第一个猜测是，在 ButtonMC 实例中单击的实际形状或精灵被注册为 event.target。您可以测试这个理论并在侦听器中跟踪 getQualifiedClassName(event.target) 。或者您可以立即尝试修复并添加
button1.mouseChildren = false;以查看其是否有效。My first guess would be that the actual shape or sprite that is clicked within the ButtonMC instance, is registered as the event.target. You could test this theory and trace getQualifiedClassName(event.target) in your listener. Or you could try the fix right away and add
button1.mouseChildren = false;to see if it works.来自鼠标事件的
target属性指的是实际单击的 DisplayAsset - 在本例中，是按钮内的其他 DisplayAsset。您可能会注意到目标的parent是按钮（或parent的parent， ETC）。无论如何，使用
currentTarget来获取添加了事件的目标，或者将按钮的mouseChildren设置为false（这样，它的子项本身不会捕获鼠标事件）。The
targetproperty coming from a mouse event refers to the DisplayAsset actually clicked - in this case, some other DisplayAsset inside your button. You'll probably notice that thetarget'sparentis the button (or theparent'sparent, etc).Anyway, use
currentTargetinstead to get the target that had the event added, or setmouseChildrenasfalsefor the button (that way, its children won't capture mouse events themselves).