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POWhy does Flex Viewstack "blink" when switching between views?
 

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  1. POWhy does Flex Viewstack "blink" when switching between views?
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    <p>I'm working on an app in which I want the viewstack to switch views on certain events. I have them switching correctly but there appears to be a slight "blink" when the change between views occurs. I've tried <strong>creationPolicy="all"</strong> but that doesn't fix the problem. The reason the "blink" is so noticeable is the fact that the views in the viewstack are different width/heights. Is there a way to stop this "blinking" effect on viewstack view switch?</p> <p>Here is the code in which the view switch happens:</p> <pre><code> function show(value:String):void { switch(value) { case "ShapeObject": viewstack.selectedIndex = 2; break; case "AssetObject": viewstack.selectedIndex = 0; break; } } </code></pre> <p>Here is the mxml for the viewstack:</p> <pre><code> &lt;mx:ViewStack id="viewstack" resizeToContent="true" clipContent="false" creationPolicy="all" mouseDown="stopPropagationClick(event)" click="stopPropagationClick(event)"&gt; &lt;mx:HBox id="shapeMenu" width="250" height="44" verticalAlign="middle" horizontalAlign="center" horizontalGap="0"&gt; &lt;mx:Image source="@Embed(source='assets/objectTools_greyBack_left.png')" height="100%" width="10"/&gt; &lt;mx:HBox verticalAlign="middle" horizontalAlign="center" backgroundSize="100%" height="100%" width="100%" styleName="contextualCenterBkg"&gt; &lt;ui:HTMLLabelButton id="ConstrainShape" name="{_appData.textXML.designer.toolbars.shapeControlEditor.proportionalResize.@tooltip}" styleName="btnContextualConstrain" click="{btnClick(event)}" mouseOver="_tips.tip(event);" mouseOut="_tips.tip(event);"/&gt; &lt;mx:ColorPicker name="{_appData.textXML.designer.toolbars.shapeControlEditor.shapeColorPicker.@tooltip}" close="onColorPickerClose(event)" change="{onShapeColorPickerChange(event)}" open="onColorPickerOpen(event)" click="stopPropagationClick(event)" mouseDown="stopPropagationClick(event)" focusEnabled="false" mouseOver="_tips.tip(event);" mouseOut="_tips.tip(event);"/&gt; &lt;ui:HTMLLabelButton name="{_appData.textXML.designer.toolbars.shapeControlEditor.bringForward.@tooltip}" styleName="btnContextualSendForward" click="{onSendToFrontClick(event)}" mouseOver="_tips.tip(event);" mouseOut="_tips.tip(event);"/&gt; &lt;ui:HTMLLabelButton name="{_appData.textXML.designer.toolbars.shapeControlEditor.sendBackward.@tooltip}" styleName="btnContextualSendBack" click="{onSendToBackClick(event)}" mouseOver="_tips.tip(event);" mouseOut="_tips.tip(event);"/&gt; &lt;ui:HTMLLabelButton name="{_appData.textXML.designer.toolbars.shapeControlEditor.deleteControl.@tooltip}" id="DeleteShape" styleName="btnContextualDelete" click="{btnClick(event)}" mouseOver="_tips.tip(event);" mouseOut="_tips.tip(event);"/&gt; &lt;/mx:HBox&gt; &lt;mx:Image source="@Embed(source='assets/objectTools_greyBack_right.png')" height="100%" width="10"/&gt; &lt;/mx:HBox&gt; &lt;mx:HBox id="multiMenu" width="250" height="44" verticalAlign="middle" horizontalAlign="center" horizontalGap="0"&gt; &lt;mx:Image source="@Embed(source='assets/objectTools_greyBack_left.png')" height="100%" width="10"/&gt; &lt;mx:HBox verticalAlign="middle" horizontalAlign="center" backgroundSize="100%" height="100%" width="100%" styleName="contextualCenterBkg"&gt; &lt;ui:HTMLLabelButton id="ConstrainShapeMulti" name="{_appData.textXML.designer.toolbars.shapeControlEditor.proportionalResize.@tooltip}" styleName="btnContextualConstrain" click="{btnClick(event)}" mouseOver="_tips.tip(event);" mouseOut="_tips.tip(event);"/&gt; &lt;ui:HTMLLabelButton name="{_appData.textXML.designer.toolbars.shapeControlEditor.bringForward.@tooltip}" styleName="btnContextualSendForward" click="{onSendToFrontClick(event)}" mouseOver="_tips.tip(event);" mouseOut="_tips.tip(event);"/&gt; &lt;ui:HTMLLabelButton name="{_appData.textXML.designer.toolbars.shapeControlEditor.sendBackward.@tooltip}" styleName="btnContextualSendBack" click="{onSendToBackClick(event)}" mouseOver="_tips.tip(event);" mouseOut="_tips.tip(event);"/&gt; &lt;ui:HTMLLabelButton name="{_appData.textXML.designer.toolbars.shapeControlEditor.deleteControl.@tooltip}" id="DeleteShapeMulti" styleName="btnContextualDelete" click="{btnClick(event)}" mouseOver="_tips.tip(event);" mouseOut="_tips.tip(event);"/&gt; &lt;/mx:HBox&gt; &lt;mx:Image source="@Embed(source='assets/objectTools_greyBack_right.png')" height="100%" width="10"/&gt; &lt;/mx:HBox&gt; &lt;/mx:ViewStack&gt; </code></pre>
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    1. CODo you set their dimensions dynamically when switching screens?
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    2. CONo, the dimensions are set in the mxml on creation.
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    3. COCan you post some code?
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      1. POWhy does Flex Viewstack "blink" when switching between views?
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