Handling Uncaught Errors

The following steps will take you through handling the error introduced in the Debugging App project using the UncaughtErrorEvent class.

1. Return to the Flash Perspective in the Debugging App project. In DebuggingApp.mxml, add a protected function called onAppComplete(), and then assign the function to the applicationComplete property in the attributes for opening the <s:ViewNavigatorApplication> tag (Listing 6-4).

   

   LISTING 6.4: Adding the onAppComplete() method to the <fx:Script> declaration in DebuggingApp.mxml

   <?xml version="1.0" encoding="utf-8"?>
   <s:ViewNavigatorApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
                               xmlns:s="library://ns.adobe.com/flex/spark"
                               firstView="views.DebuggingAppHome"
                               applicationComplete=“onAppComplete()”>
   
         <fx:Script>
               <![CDATA[
   
                     protected function onAppComplete():void {}
   
               ]]>
         </fx:Script>
   
   </s:ViewNavigatorApplication>