MXML 复合容器初始化错误
我从复合画布组件中收到一个奇怪的错误：
An ActionScript error has occurred:
Error: null
at mx.core::Container/initialize()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:2560]
at -REMOVED THIS FOR STACK OVERFLOW-.view::EditableCanvas/initialize()[.../view/EditableCanvas
....
这似乎与我的复合组件有一个子组件这一事实有关，并且我试图在使用该组件的地方添加一个。那么我怎样才能正确地做到这一点呢？
组件代码如下所示（EditableCanvas.mxml）：
<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script>
<mx:Image id="editTextImage"
source="@Embed('/../assets/icons/small/edit.png')"/>
</mx:Canvas>
使用该代码的代码如下所示：
<view:EditableCanvas
width="290"
height="120"
backgroundColor="#FFFFFF"
horizontalScrollPolicy="off"
borderStyle="solid"
cornerRadius="3">
<mx:Text id="textContentBox" width="270" fontFamily="nautics" fontSize="12" text="{_text}"/>
</view:EditableCanvas>
I'm getting an odd error from my composite canvas component:
An ActionScript error has occurred:
Error: null
at mx.core::Container/initialize()[C:\autobuild\galaga\frameworks\projects\framework\src\mx\core\Container.as:2560]
at -REMOVED THIS FOR STACK OVERFLOW-.view::EditableCanvas/initialize()[.../view/EditableCanvas
....
It seems to be related to the fact that my composite component has a child and I'm trying to add one in the place I'm using the component. So how can I do this correctly?
Component code looks like this (EditableCanvas.mxml):
<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script>
<mx:Image id="editTextImage"
source="@Embed('/../assets/icons/small/edit.png')"/>
</mx:Canvas>
The code that is using the code looks like this:
<view:EditableCanvas
width="290"
height="120"
backgroundColor="#FFFFFF"
horizontalScrollPolicy="off"
borderStyle="solid"
cornerRadius="3">
<mx:Text id="textContentBox" width="270" fontFamily="nautics" fontSize="12" text="{_text}"/>
</view:EditableCanvas>
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所以我自己从 Adobe Flex 找到了解决方案3 帮助：
在复合组件中拥有子元素的方法（也接受来自自定义标记的子元素）是在 as3 中的creationComplete之后添加它们。
So I found the solution all by my own from Adobe Flex 3 Help:
The way to have child elements in a composite component (that also accepts childs from custom tag) is to add them after creationComplete in as3.
您是否尝试过不绑定到 init() 函数，而只是使用creationComplete="init()" ？
Have you tried not binding to the init() function, and instead just having creationComplete="init()" ?