从弹出窗口发送数据到主应用程序。

Question

我没有得到我正在寻找的答案。 我想将请求数据发送给主应用程序。

<?xml version="1.0" encoding="utf-8"?> 
<mx:TitleWindow xmlns:mx="http://www.adobe.com/2006/mxml" remove="titlewindow1_removeHandler(event)" 
       width="400" height="220" layout="absolute" title="USER LOGIN"> 
    <mx:Metadata> 
     [Event(name="commEvent", type="flash.events.Event")] 
    </mx:Metadata> 
    <mx:Script> 
     <![CDATA[ 
      import data.Data; 

      import mx.events.FlexEvent; 
      import mx.managers.PopUpManager; 


      [Bindable] 
      public var userID:String; 

      private function loginUser():void{ 
       trace("btn"); 
       var req:URLRequest = new URLRequest('http://localhost/CCN/userProcess.php'); 
       var loader:URLLoader = new URLLoader(); 
       req.method="POST"; 

       var variables:URLVariables = new URLVariables(); 
       variables.email= username.text; 
       variables.password= password.text; 
       variables.action= "login_user"; 
       req.data=variables; 

       loader.addEventListener(Event.COMPLETE,onDataLoaded); 
       loader.load(req); 
      } 
      protected function loginButton_clickHandler(event:MouseEvent):void 
      { 
       // TODO Auto-generated method stub 

       loginUser(); 
      } 


      private function onDataLoaded(e:Event):void{ 
       var xml:XML= new XML(e.target.data); 
       if(xml.status=="success"){ 

       //SEND DATA TO MAIN APPLICATION ???? 
        PopUpManager.removePopUp(this); 

       }else{ 
        fail.visible=true; 
        username.text=""; 
        password.text=""; 
        username.setFocus(); 
       } 


      } 

      protected function loginButton_keyDownHandler(ee:KeyboardEvent):void 
      { 
       // TODO Auto-generated method stub 
       if(ee.keyCode==13){ 
        loginUser(); 
       } 
      } 

      protected function titlewindow1_removeHandler(event:FlexEvent):void 
      { 
       // TODO Auto-generated method stub 

      } 

     ]]> 
    </mx:Script> 

    <mx:TextInput id="username" x="141" y="31" width="199" text=""/> 
    <mx:TextInput keyDown="loginButton_keyDownHandler(event)" text="000" id="" x="141" y="84" width="199" displayAsPassword="true"/> 
    <mx:Button id="loginButton" x="275" y="133" label="LOGIN" click="loginButton_clickHandler(event)"/> 
    <mx:Label x="22" y="33" text="Email"/> 
    <mx:Label x="22" y="86" text="Password"/> 
    <mx:Label x="22" visible="false" y="135" id="fail" color="#FF0000" text="LOGIN FAILED"/> 
</mx:TitleWindow> 

这里是主要的应用程序代码

<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" 
       minWidth="955" minHeight="600" backgroundColor="#FFFFFF" 
       creationComplete="application1_creationCompleteHandler(event)" layout="absolute"> 
    <mx:Script> 
     <![CDATA[ 
      import mx.containers.TitleWindow; 
      import mx.core.IFlexDisplayObject; 
      import mx.events.CloseEvent; 
      import mx.events.FlexEvent; 
      import mx.managers.PopUpManager; 

      //private var loginWindow:TitleWindow; 
      public var user:String; 
      private var login:Login 

      private function application1_creationCompleteHandler(event:FlexEvent):void 
      { 
       // TODO Auto-generated method stub 
       login = Login(
        PopUpManager.createPopUp(this, Login, true)); 
       PopUpManager.centerPopUp(login); 


       //login['loginButton'].addEventListener(MouseEvent.CLICK,onClose); 
       login.addEventListener(CloseEvent.CLOSE,oncc) 

      } 
      private function onClose(e:Event):void{ 
       trace("Trace : "+login.userID); 
      } 
      private function 


     ]]> 
    </mx:Script> 
</mx:Application> 

Answer 1

我会建议通过添加自定义事件解决这一点，因为你的标签意味着你可以理解。

如果不是，请按照以下步骤操作。

1）创建一个新的事件类型（扩展事件类的动作 - 一定要覆盖的clone（））

2）在原申请中为你的新事件类型添加事件侦听器，在弹出的

3）导致的弹出派遣你的新事件类型将关闭

4前）手柄不管它是你在事件处理程序找（用户ID？）。

我会建议将userID附加到实际事件，以便父代不直接寻址login.userID。从松耦合的角度来看，它更正确。也就是说，如果你不想，你可以通过不附加用户ID来简化解决方案。松耦合是一个伟大的目标，但是如果你只打算一次使用这种关系，这并不是非常必要。

如果您选择更紧密的耦合路线，那么您只需使用自定义“类型”而不是扩展事件来派发事件。

如果您需要更低级别的示例（更少的描述，更多的代码），请告诉我，我也可以帮助您。

下面提供的示例是稍微复杂一点的版本，您可以在其中扩展事件以包含数据。

事件类::

package mycomponents 
{ 
    import flash.events.Event; 
    public class CustomEvent extends Event 
    { 
     public static const EVENT_TYPE_NAME:String = "myEventType" 

     public var mUserID:String = ""; 
     public var mSuccess:Boolean = false; 

     public function CustomEvent(aType:String, aUserID:String, aSuccess:Boolean) 
     { 
      super(aType) 
      mUserID = aUserID; 
      mSuccess = aSuccess; 
     } 

     override public function clone():Event 
     { 
      var lEvent:CustomEvent = new CustomEvent(mUserID, mSuccess); 
      return lEvent; 
     } 
    } 
} 

在弹出::

private var loginSuccessful:Boolean = false; 

private function onDataLoaded(e:Event):void{ 
    var xml:XML= new XML(e.target.data); 
    if(xml.status=="success"){ 

     userID = username.text; 
     loginSuccessful = true;    
     //SEND DATA TO MAIN APPLICATION 
     dispatchEvent(new CustomEvent(CustomEvent.EVENT_TYPE_NAME, userID, loginSuccessful); 
     PopUpManager.removePopUp(this); 

    }else{ 
     fail.visible=true; 
     username.text=""; 
     password.text=""; 
     username.setFocus(); 
    }   
} 

protected function titlewindow1_removeHandler(event:FlexEvent):void 
{   
    if (!loginSuccessful) 
     dispatchEvent(new CustomEvent(CustomEvent.EVENT_TYPE_NAME," userID, loginSuccessful)); 
} 

，并在主应用程序::

import mycomponents.CustomEvent; 

private function application1_creationCompleteHandler(event:FlexEvent):void 
{ 
    //...your code 
    login.addEventListener(CustomEvent.EVENT_TYPE_NAME, handleLoginEvent); 
} 

private function handleLoginEvent(aEvent:CustomEvent) 
{ 
    //My example code dispatches an event with mSuccess = false if the login prompt closes 
    //without a successful login 
    // 
    //now do whatever you want with the information from the popup 
    //aEvent.mUserID gets you ID 
    //aEvent.mSuccess gets you success 

} 

抛一起在休息的在中间工作，所以没有承诺会按原样编译。