Remove handler : Event Handler « Event « Flex






  1. Flex
  2. Event
  3. Event Handler

Remove handler

Remove handler
            

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<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"
    initialize="createHandler(event)">
    <s:layout>
        <s:VerticalLayout />
    </s:layout>
    <fx:Script>
         
        import mx.controls.Alert; 
        private function createHandler(e:Event):void { 
            b1.addEventListener(MouseEvent.CLICK, myClickHandler); 
        } 
        private function removeMyHandlers(e:Event):void { 
            /* Remove listener for b1's click event because it was added 
                with the addEventListener() method. */ 
                b1.removeEventListener(MouseEvent.CLICK, myClickHandler); 
            /* Does NOT remove the listener for b2's click event because it 
                was added inline in an MXML tag. */ 
            b2.removeEventListener(MouseEvent.CLICK, myClickHandler); 
        } 
        private function myClickHandler(e:Event):void { 
            Alert.show("The button was clicked."); 
        } 
      
    </fx:Script>
    <s:Button id="b1" label="Click Me" />
    <s:Button label="Click Me Too" id="b2"
        click="myClickHandler(event)" />
    <s:Button label="Remove Event Listeners" id="b3"
        click="removeMyHandlers(event)" />
</s:Application>








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