事件监听器未在此代码中触发，任何人都可以指导我这段代码的问题
<?xml version="1.0" encoding="UTF-8"?>
<mx:HBox creationComplete="{initComponent();}" height="51" rollOut="{isOnControl = false;setTimer(true);}" rollOver="{isOnControl = true;setTimer(false);}" backgroundImage="C:\Users\sidd\Desktop\5\bandoochat\Image\image 83.png" verticalAlign="middle" xmlns:mx="http://www.adobe.com/2006/mxml" width="240">
<mx:Script><![CDATA[
import assets.EmbeddedAssets_menuRadioIcon;
import com.myproj.classes.*;
import com.myproj.events.*;
import com.myproj.interfaces.*;
import flash.events.*;
import flash.utils.*;
import mx.binding.*;
import mx.collections.*;
import mx.containers.*;
import mx.controls.*;
import mx.core.*;
import mx.effects.*;
import mx.events.*;
import mx.styles.*;
[Binding]
private var toolbarTimer:Timer;
private var toolbarAnimationPlaying:Boolean = false;
private var audioDevices:ArrayCollection;
private var cameraCollection:Array;
private var isOnMenu:Boolean = false;
private var cameraDevices:ArrayCollection;
private var audioCollection:Array;
private var _controller:IControlManager;
private var toolbarMoveEffect:Fade;
private var cameraChoose:PopUpButton;
private var cameraDevicesMenu:Menu;
private var audioDevicesMenu:Menu;
private var isOnControl:Boolean = false;
public function resetToolbarTimer(event:MouseEvent = null) : void
{
setTimer(false);
setTimer(true);
if (!toolbarAnimationPlaying)
{
toolbarAnimationPlaying = true;
setToolbarState(true);
}
return;
}// end function
public function setTimer(param1:Boolean) : void
{
if (this.includeInLayout)
{
if (!param1)
{
toolbarTimer.stop();
toolbarTimer.reset();
}
else
{
toolbarTimer.reset();
toolbarTimer.start();
}
}
return;
}// end function
public function videoSelectedHandler(event:MenuEvent) : void
{
var i:int = 0;
while (i < cameraDevices.length)
{
cameraDevices.getItemAt(i).icon = null;
i++;
}
event.item.icon = EmbeddedAssets_menuRadioIcon;
_controller.setNewCamDevice(event.index);
return;
}// end function
public function muteAudio() : void
{
_controller.muteAudio();
return;
}// end function
public function initComponent() : void
{
toolbarTimer.addEventListener(TimerEvent.TIMER, toolbarTimerHandler);
this.parent.addEventListener(MouseEvent.MOUSE_MOVE, resetToolbarTimer);
this.parent.addEventListener(MouseEvent.ROLL_OUT, function () : void
{
setTimeout(toolbarTimerHandler, 200);
return;
}// end function
);
_controller.addEventListener(ControlManagerEvent.onNoCamerasFound, onNoCamerasFound);
audioCollection = _controller.microphones;
var i:int;
while (i < audioCollection.length)
{
audioDevices.addItem({label:audioCollection[i], icon:i == 0 ? (EmbeddedAssets_menuRadioIcon) : (null)});
i = (i + 1);
}
audioDevicesMenu = Menu.createMenu(this, audioDevices);
audioDevicesMenu.addEventListener(MouseEvent.MOUSE_OVER, function () : void
{
isOnMenu = true;
return;
}// end function
);
audioDevicesMenu.addEventListener(MouseEvent.MOUSE_OUT, function () : void
{
isOnMenu = false;
return;
}// end function
);
audioDevicesMenu.addEventListener(MenuEvent.ITEM_CLICK, audioSelectedHandler);
audioDevicesMenu.width = 200;
cameraCollection = _controller.cameras;
var j:int;
while (j < cameraCollection.length)
{
cameraDevices.addItem({label:cameraCollection[j], icon:j == 0 ? (EmbeddedAssets_menuRadioIcon) : (null)});
j = (j + 1);
}
cameraDevicesMenu = Menu.createMenu(this, cameraDevices);
cameraDevicesMenu.addEventListener(MouseEvent.MOUSE_OVER, function () : void
{
isOnMenu = true;
return;
}// end function
);
cameraDevicesMenu.addEventListener(MouseEvent.MOUSE_OUT, function () : void
{
isOnMenu = false;
return;
}// end function
);
cameraDevicesMenu.addEventListener(MenuEvent.ITEM_CLICK, videoSelectedHandler);
cameraDevicesMenu.width = 200;
return;
}// end function
public function onNoCamerasFound(event:ControlManagerEvent) : void
{
this.includeInLayout = false;
this.visible = false;
return;
}// end function
public function setToolbarState(param1:Boolean) : void
{
if (this.includeInLayout)
{
if (!isOnControl)
{
if (toolbarMoveEffect.isPlaying)
{
toolbarMoveEffect.reverse();
return;
}
toolbarMoveEffect.alphaFrom = !param1 ? (1) : (0);
toolbarMoveEffect.alphaTo = param1 ? (1) : (0);
toolbarMoveEffect.play();
}
}
return;
}// end function
public function toolbarTimerHandler(event:Event = null) : void
{
if (!isOnMenu)
{
audioDevicesMenu.hide();
cameraDevicesMenu.hide();
toolbarAnimationPlaying = false;
setTimer(false);
setToolbarState(false);
}
return;
}// end function
public function muteVideo() : void
{
_controller.muteVideo();
return;
}// end function
public function _LocalCameraControls_Fade1_i() : Fade
{
var fade:* = new Fade();
toolbarMoveEffect = fade;
fade.duration = 220;
BindingManager.executeBindings(this, "toolbarMoveEffect", toolbarMoveEffect);
return fade;
}// end function
public function audioSelectedHandler(event:MenuEvent) : void
{
var i:int = 0;
while (i < audioDevices.length)
{
audioDevices.getItemAt(i).icon = null;
i++;
}
event.item.icon = EmbeddedAssets_menuRadioIcon;
_controller.setNewMicDevice(event.index);
return;
}// end function
]]></mx:Script>
<mx:HBox horizontalGap="1" paddingTop="12" verticalAlign="middle" width="100%">
<mx:Canvas>
<mx:PopUpButton id="audioChoose" popUpStyleName="popupStyle" visible="true"/>
<mx:Image click="{muteAudio();}" id="camMicIcon" toolTip="Mute Mic" source="C:\Users\sidd\Desktop\5\bandoochat\Image\image 63.png"/>
</mx:Canvas>
<mx:Image click="{audioChoose.open();}" id="camAudioSelector1" toolTip="Select audio device" source="C:\Users\sidd\Desktop\5\bandoochat\Image\image 104.png"/>
<mx:Spacer width="100%"/>
<mx:HBox horizontalGap="1">
<mx:Canvas>
<mx:PopUpButton id="cameraChoose1" popUpStyleName="popupStyle" />
<mx:Image click="{muteVideo();}" id="camVideoIcon" toolTip="Turn Camera OFF" source="C:\Users\sidd\Desktop\5\bandoochat\Image\image 56.png"/>
</mx:Canvas>
<mx:Image click="{cameraChoose.open();}" id="camVideoSelector1" toolTip="Select video device" source="C:\Users\sidd\Desktop\5\bandoochat\Image\image 104.png"/>
</mx:HBox>
</mx:HBox>
</mx:HBox>
答案 0 :(得分：1)
首先，量化“不工作的意思”。你收到编译错误了吗？还是运行时错误？或者事件监听器没有解雇？或者还有其他事情发生了吗？
其次，这样的行：
this.parent.addEventListener
打破封装。一个孩子不应该对它的父母一无所知。这通常被认为是一种不好的做法。
您在匿名函数中的使用在我的开发旅行中很奇怪，但我相信它是有效的。您是否在函数内部设置了断点以确保它们正在执行？
答案 1 :(得分：0)
我可以看到所有的事件侦听器都在initComponent（）中设置，因此在其中放置一个trace语句以确保调用该方法。我们不知道是否围绕您的mxml文件设置了所有内容来调用您的init方法。
顺便说一下，当我在你的代码中搜索“addEventListener”时，我立刻就看到了你如何使用timers和setTimeout的问题;请参考： http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/utils/package.html#setTimeout%28%29
这不应该导致任何中断，但它在代码中是一个傻瓜，所以我认为有很多小错误，你需要更全面地了解你的所有代码正在做什么。