TabNavigator blinking

Question

Anyone else seeing this issue? Create a tab navigator inside a popup, put in 3 tabs and inside each of those three tabs (vboxs) put <canvas><Vgroup><Hgroup>bunch of components</Hgroup></group></canvas>.
When you run the app and the popup is displayed you are tab #1, click tab #3 and for me if the mouse is over the tab #3 when it opens the content will blink continously until you move your mouse of the selected tab ( off screen ).  If you leave the mouse over tab #3 it will blink forever until you remove your mouse.
So to work around I tried createpolicy="all" so that the creation is all done at once for all tabs. The only issue I have a dropdownlist that should be populated in tab#3 but when you creationpolicy="true" and you move from tab#1 to tab#3 the dropdowlist will empty.  Maybe calling invalidateSize, invalide*..., etc... will work once tab#3 is active? So click tab#3 and when it becomes active have the tab nav change function tell the dropdowlist in tab#3 to in essenance refresh?
Shouldn't have to do this but then the tab nav shouldn't blink.
Jason

Answer 1

dallas,
Can you please file a bug at http://bugs.adobe.com/flex and include a simple test case.
I was unable to repro the behavior you describe using the following example:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        xmlns:local="*">
    <s:layout>
        <s:VerticalLayout paddingLeft="20" paddingTop="20"/>
    </s:layout>
    <fx:Script>
        <![CDATA[
            import mx.core.IFlexDisplayObject;
            import mx.managers.PopUpManager;
            protected function btn_clickHandler(event:MouseEvent):void {
                var poppy:IFlexDisplayObject = PopUpManager.createPopUp(this, TabNav, true);
                PopUpManager.centerPopUp(poppy);
        ]]>
    </fx:Script>
    <local:TabNav />
    <s:Button id="btn" label="Launchy" click="btn_clickHandler(event)" />
    <mx:Label id="sdkVer" initialize="sdkVer.text = 'Flex SDK Version: ' + mx_internal::VERSION;" />
</s:Application>
And my custom TabNav.mxml component/popup is as follows:
<?xml version="1.0" encoding="utf-8"?>
<mx:TabNavigator name="TabNav"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo"
        width="550" height="400">
    <fx:Script>
        <![CDATA[
            import mx.managers.PopUpManager;
        ]]>
    </fx:Script>
    <mx:Canvas label="Tab Number One">
        <s:VGroup>
            <s:HGroup>
                <mx:ColorPicker id="cp1"
                        initialize="cp1.selectedIndex = Math.random() * cp1.dataProvider.length;" />
                <mx:DateChooser baseColor="{cp1.selectedColor}" />
                <mx:DataGrid baseColor="{cp1.selectedColor}" />
            </s:HGroup>
            <s:Button id="closeBtn"
                    label="Close PopUp"
                    click="PopUpManager.removePopUp(this);"
                    initialize="closeBtn.includeInLayout = this.isPopUp;" />
        </s:VGroup>
    </mx:Canvas>
    <mx:Canvas label="Tab Number Two">
        <s:VGroup>
            <s:HGroup>
                <mx:DateChooser baseColor="{cp2.selectedColor}" />
                <mx:DataGrid baseColor="{cp2.selectedColor}" />
                <mx:ColorPicker id="cp2"
                        initialize="cp2.selectedIndex = Math.random() * cp2.dataProvider.length;" />
            </s:HGroup>
        </s:VGroup>
    </mx:Canvas>
    <mx:Canvas label="Tab Number Three">
        <s:VGroup>
            <s:HGroup>
                <mx:DataGrid baseColor="{cp3.selectedColor}" />
                <mx:ColorPicker id="cp3"
                        initialize="cp3.selectedIndex = Math.random() * cp3.dataProvider.length;" />
                <mx:DateChooser baseColor="{cp3.selectedColor}" />
            </s:HGroup>
        </s:VGroup>
    </mx:Canvas>
</mx:TabNavigator>
Peter