After discussing about AuthSub and ClientLogin in Google in Flex or Air, now I would like to step forward about Basic authentication in Flex or Air. To know more about Basic Authentication please browse to this link https://mail.google.com/mail/feed/atom/all , you will be asked by pop up window to enter your login information right? now let we see how to handle it :

<mx:VBox 
  xmlns:mx        = "http://www.adobe.com/2006/mxml" 
  width           = "100%" 
  height          = "100%"
  verticalAlign   = "middle"
  horizontalAlign = "center"
  backgroundColor = "#364a59"
  creationComplete= "{creationHandler()}"
  >
  
  <mx:Script>
    <![CDATA[

     import mx.rpc.events.FaultEvent;
     import mx.rpc.events.ResultEvent;
     import mx.rpc.http.mxml.HTTPService;
     import mx.utils.*;
       
     private function creationHandler():void{
        gmailService.headers = {Authorization:"Basic " + basicAuth()}; 
        gmailService.url = "https://mail.google.com/mail/feed/atom/all"
        gmailService.contentType = "application/x-www-form-urlencoded"
        gmailService.resultFormat = "e4x"
        gmailService.addEventListener(ResultEvent.RESULT, feedSuccess);
        gmailService.addEventListener(FaultEvent.FAULT, faultHandler);
        gmailService.send(); //Update Here
     }

     private function basicAuth():String{
        var encoder:Base64Encoder = new Base64Encoder();
        encoder.insertNewLines = false; 
        encoder.encode("yacobus.r@kiranatama.com:Dec.07.1082"));
        return String(encoder);
     }

     private function feedSuccess(event:ResultEvent):void{
         //Do any logic for feed result here
         trace(XML(event.result))
     }


     private function faultHandler(event:FaultEvent):void{
        
     }

    ]]>
  </mx:Script>

  <mx:HTTPService id="gmailService" showBusyCursor="true"/>  

</mx:VBox>