[FLEX-23759] setElementIndex should only execute if requested index is different from current

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK Previous
• Component/s: Spark: Group
• Environment: Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 14/Apr/10 02:37
• Updated: 29/Apr/11 11:03
• Resolved: 08/Sep/10 15:30

Description

The current setElementIndex implementation in Group (and possibly other components as well) does not check to see if it actually changing the index:

public function setElementIndex(element:IVisualElement, index:int):void
{
// check for RangeError...this is done in addItemAt
// but we want to do it before removing the element
checkForRangeError(index);

removeElement(element);
addElementAt(element, index);
}

This function call takes nearly 200 ms to run in my application and the index is the same. I am now adding my own logic in to stop this. This should be handled by group though.