[FLEX-34246] Height of each NavigatorContent child increases when new child created

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Adobe Flex SDK 4.6 (Release), Apache Flex 4.12.0
• Component/s: mx: Accordion, Spark: NavigatorContent
• Labels: easytest
• Environment: Windows 7 SP1 x64, Flash Builder 4.6, AIR 13.0
• Assignee: Unassigned
• Reporter: David Reade
• Created: 23/Apr/14 08:07
• Updated: 23/Apr/14 08:10

Description

In the code sample below, I am adding a new child to the Accordion using the button. When the child is added, the height of each existing child in the Accordion increases automatically, even though each child has a set height value.

This issue was first noticed using Adobe Flex SDK 4.6 but can also be replicated using the latest production Apache Flex 4.12.

<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" 
					   xmlns:s="library://ns.adobe.com/flex/spark" 
					   xmlns:mx="library://ns.adobe.com/flex/mx">
	<s:layout>
		<s:VerticalLayout/>
	</s:layout>
	<fx:Script>
		<![CDATA[
			import spark.components.BorderContainer;
			import spark.components.NavigatorContent;
			
			private function add():void
			{
				var n:NavigatorContent = new NavigatorContent();
				n.height = 100;
				var b:BorderContainer = new BorderContainer();
				b.percentHeight = 100;
				b.percentWidth = 100;
				n.addElement(b);
				accordion.addElement(n);
			}
		]]>
	</fx:Script>
	<s:Button click="add()" label="ADD CHILD"/>
	<mx:Accordion id="accordion" width="100%"/>
</s:WindowedApplication>