Flex的TabNavigator中tab触发的事件
Getting Around Bug in Adobe Flex: TabControl Inline Event Handling for TabIndexChange Doesn't Work
I ran into this because I wanted to do something funky. I wanted my Flex app window to change PageStates (and size) whenever the TabIndex changed. Whether doing this kind of thing is wise in a user interface is yet to be seen -- I did it and it even strikes ME as a bit off the wall -- but it did solve the immediate issue. The immediate issue was that some of my tabs required a lot of space and some did not. This left a lot of ugly whitespace.
So, I figured, Flex (Actually Flash under the covers) must have an event handler for changing tabs. And I was rewarded very quickly: There is a "TabIndexChange" inline event handler. For the uninitiated, such a thing looks something like this:
<mx:TabNavigator id="tabnavigator1" tabIndexChange="myHandlerFunction()">
With most other events, this works just fine: When the event fires, the handler is called. But it simply doesn't work in this case. The handler function is never called.
There's a couple of ways to handle this. One way is to use a TabBar control rather than a TabControl. The TabBar basically gives you the look and feel of a tabset but more control over what is tabbed. And the tabIndexChange even calls the handler as one might expect.
I didn't want to do it that way, however. For one thing, I'm stubborn. For another, I already had all my controls arranged on the TabNavigator and I didn't want to rip it half to pieces to get functionality that I should already be getting.
Fortunately, there's a solution: Explicitly declare an event listener. That looks something like this:
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="InitApp()">
<mx:Script>
<![CDATA[
import mx.events.IndexChangedE
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一、
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
addedToStage="stage.addEventListener(KeyboardEvent.KEY_DOWN, myKeyDown)"
click="clickEvt(event)"
layout="absolute"
&nb ......
1.拷贝内容到剪贴板:
System
.
setClipboard
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strContent)
;
2.克隆一个 ArrayCollection :
var
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ArrayCollection = new
ArrayCollection(
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for
each
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var
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{
bar.
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var
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ListCollectionVie ......
uint int Number
Flex 四舍五入:
整数的四舍五入法,Math.round(一个Number类型的数)
小数的有 tofixed(uint) 方法
例如 var num:Number = 56.159;
num.tofixed(2); 它是个S ......
1-首先写一个加载外部swf文件的类
package Package
{
import flash.display.DisplayObject;
import flash.display.Loader;
import flash.events.*;
import flash.net.URLRequest;
import mx.core.UIComponent;
import mx.events.FlexEvent;
public class CtmOb ......