Flex backkeypressedhandler not launching with states

I'm developping an mobile program with the Flex 4.5 SDK, this for my thesis for school. I have a bug in my program that I can't fix.

I have a view where I have 2 states. When I change from state my program doesn't listen to the backKey event anymore. I allready tried this:

backKeyPressed.mystate = "backKeyPressed(event)"

But this doesn't help. I made a small program to show you:

<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009" 
    xmlns:s="library://ns.adobe.com/flex/spark" title="Home"
    initialize="init()"
    backKeyPressed="view1_backKeyPressedHandler(event)">

<fx:Script>
    <![CDATA[
        import mx.collections.ArrayCollection;
        import mx.events.FlexEvent;

        [Bindable]
        private var m_list:ArrayCollection = new ArrayCollection();

        private function init():void
        {

        }

        protected function button1_clickHandler(event:MouseEvent):void
        {
            currentState = 'state2';

        }

        protected function but开发者_StackOverflowton2_clickHandler(event:MouseEvent):void
        {
            currentState = 'state1';

        }

        protected function view1_backKeyPressedHandler(event:FlexEvent):void
        {
            event.preventDefault();

        }

    ]]>
</fx:Script>
<fx:Declarations>
    <s:State name="state1"/>
    <s:State name="state2"/>
</fx:Declarations>
<s:Group id="stateOneGroup" includeIn="state1">
    <s:Button x="30" y="112" label="To State 2"
              click="button1_clickHandler(event)"/>
    <s:Label x="72" y="216" text="State1"/>
</s:Group>

<s:Group id="stateTwoGroup" includeIn="state2">
    <s:Button x="267" y="112" label="To State 1"
              click="button2_clickHandler(event)"/>
    <s:Label x="303" y="216" text="State2"/>
</s:Group>

 </s:View>

I also searched on adobe if it's a bug but I don't seem to find it.

I hope someone can help me.

Kind regards,

Thibault Heylen

I had the same issues today. At last i got it. In my issues, if it is the first view, the backkeypressed doesn't work, but for the other views, the backkeypressed works well.

Hope this helps