Use available property to detect support for the ExternalInterface API before executing methods that use the class

          


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<!-- wrapper/CheckExternalInterface.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:mx="library://ns.adobe.com/flex/mx"
    xmlns:s="library://ns.adobe.com/flex/spark" creationComplete="checkEI()">
    <s:layout>
        <s:BasicLayout />
    </s:layout>
    <fx:Script>
         
        [Bindable] 
        public var eiStatus:String; 
        private function checkEI():void { 
            eiStatus = ExternalInterface.available.toString(); 
        } 
      
    </fx:Script>
    <s:Label id="l1" text="External Interface supported? {eiStatus}" />
</s:Application>

Related examples in the same category

1.	Declare myFunc() function to be callable by the wrapper
2.	Detect support for the ExternalInterface API

Use available property to detect support for the ExternalInterface API before executing methods that use the class : ExternalInterface « Development « Flex

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