VScrollbar is not visible untill it is clicked

Question

What should be added in order to the vertical scrollbar to be visible without to be clicked or touched ? Here is image of screen :

Here is code :

    <s:Scroller width="100%" height="100%">
        <s:VGroup width="100%" height="100%" paddingTop="5" verticalAlign="middle" horizontalAlign="center">
            <s:TextInput id="chp1" width="50%"/>
            <s:TextInput id="chp2" width="50%"/>
            <s:Button label="Enregistrer" click="enregistrer(event)" styleName="btn"/>
            <s:Label/>
            <s:Button label="Lire" click="lire(event)" styleName="btn" />
            <s:TextArea id="area"/>
            <s:Label/>
            <s:HGroup> 
                <s:Button label="Envoyer" click="send(event)" styleName="btn" />
                <s:Button label="Retour" click="navigator.popView()" styleName="btn" />
            </s:HGroup>
            <s:TextArea id="resultHTTP"/>
            <s:TextInput id="h_url" text="{url}" visible="false"/>
        </s:VGroup>
    </s:Scroller>

As you see the vertical scrollbar at the right of the screen is not visible. So how to make it visible anytime ?

Answer 1

Please try this, on your scroller:

verticalScrollPolicy = "on"

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Update:

What about trying this:

interactionMode="mouse"

;)