Dropdown won't show (combobox, Menus)

Question

Hi Everyone,
I have a problem that's getting on my nerve just a bit. I'm working on a EMR app
and would like to display a PDF file in my Flex app. I'm using the HTML
component to display it which works good so far, but my current version of the
screen is using a PopUpMenuButton to allow selection of a PDF file. My issue is
that once a selection is made and the PDF is loaded, if I try and select a
option from the menu again, the dropdown won't display (or its getting covered
up my the HTML control). I have 3 versions of this form and each have a simular
problem. THe first version follows:
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute" resize="resizeWindowContents()">
<mx:ApplicationControlBar dock="true" fillAlphas="[1.0, 1.0]"
fillColors="[#0E0847, #FFFFFF]">
<mx:Label text="Select Form" fontWeight="bold" fontSize="12"
color="#990000"/>
<mx:ComboBox width="293" id="cmbForms" visible="true" change="changeEvt(event)"
>
<mx:dataProvider>
<mx:ArrayCollection>
<mx:Object label="822 Individualized Treatment Plan" data="C:\PDF Docs\822
Individualized Treatment Plan 6-29-2009 (Reader).pdf"/>
<mx:Object label="822 Psychosocial" data="C:\PDF Docs\822 Psychosocial
6-3-2009 (Reader).pdf"/>
<mx:Object label="822 Utilization Review Form" data="C:\PDF Docs\822
Utilization Review Form (Reader).pdf"/>
</mx:ArrayCollection>
</mx:dataProvider>
</mx:ComboBox>
<mx:Spacer width="100%"/>
<mx:Button label="Back"/>
<mx:Button label="Submit"/>
</mx:ApplicationControlBar>
<mx:HTML id="PDFViewer" width="100%" height="100%" resize="ResizeViewer()"
x="0" y="0"/>
</mx:WindowedApplication>
Note: Scripts not shown
In the version above when the form first loads (without a PDF file) the Dropdown
on the combobox is visable. Once I select a option and a PDF is loaded the
dropdown no longer displays in full, meaning it appears that the dropdown gets
trapped inside the ApplicationControlBar.
The last version follows:
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute">
<mx:PopUpMenuButton y="0" label="PopUpMenuButton" width="100%" id="pb2"
labelField="@label"
showRoot="false"
dataProvider="{menuData}"
creationComplete="initData();"
itemClick="changeEvt(event);"/>
<mx:HTML id="PDFViewer" width="100%" height="100%" resize="ResizeViewer()"
x="0" y="21"/>
<mx:Script>
<![CDATA[
import mx.controls.Menu;
import mx.events.MenuEvent;
public var pdf:HTMLLoader;
private function initData():void {
Menu(pb2.popUp).selectedIndex=0;
private function ResizeViewer():void{
if(pdf == null)
pdf = new HTMLLoader;
pdf.height = PDFViewer.height
pdf.width = PDFViewer.width
[Bindable]
public var menuData:Array = [
{label: "Individualized Treatment Plan", data: "0"},
{label: "Psychosocial", data: "1"},
{label: "Utilization Review Form", data: "2"}
private function changeEvt(event:MenuEvent):void {
var index:int;
var filepath:String;
index = event.currentTarget.label;
switch (index) {
case 0 :
filepath = "C://PDF Docs//ITP.pdf";
case 1 :
filepath = "C://PDF Docs//Psych.pdf";
case 2 :
filepath = "C://PDF Docs//Util.pdf";
PDFViewer.removeChildAt(0);
var request:URLRequest = new URLRequest(filepath)
pdf = new HTMLLoader();
pdf.height = PDFViewer.height;
pdf.width = PDFViewer.width;
pdf.load(request);
PDFViewer.addChildAt(pdf, 0);
]]>
</mx:Script>
</mx:WindowedApplication>
Question, How do I keep the dropdown on top of all other control on the form?
Thanks for any help.
Michelle

Answer 1

An iPod Classic does not use iOS 7.0.4, as suggested in the footer at the bottom of your first post. In fact, it doesn't use iOS, and the iPod's operating system has not been updated in a long while.
Look on the iPod, under Settings/About and press the centre button until the "version" is displayed. Mine says 1.1.2 PC. You may have a different version, but as far as I know, they have not been updated recently either.
Has your car been serviced recently? Perhaps the manufacturer has updated the car's stereo, and that is why things have changed.
By the way, when I connect my iPod Classic to my Mazda, the iPod's display does vary. Sometimes it shows (in the centre of the screen) the name of the first song to be played when connected, even when subsequent songs are being played, other times it says "don't browse iPod while driving". In both cases, it shows the Now Playing song's title at the bottom of the iPod's screen, and scrolls it with the artist name.
P.S. I noticed these screens while still parked, not whilst driving.