Flex 3: Can anybody help me optimize this array -> arrayCollection function?

The issue your having loading items could be because you are using a repeater instead of a list class.

The issue your having loading items could be because you are using a repeater instead of a list class. With a repeater, there will be a block created in memory, and drawn on the screen. So, if you have 100 items in your array, then 100 blocks will be created.

This could slow down both initial creation and the overall app. A list based class focuses on a technique called renderer recycling; which means only the displayed elements are created and rendered on the screen. So, depending on settings, you'd usually have 7-10 'block' instances on the screen, no matter how many items you have in your array.

Change positionsAC. AddItemAt(tempObject, positionsAC. Length); to positionsAC.

AddItem(tempObject); addItemAt is causing a reindex of the collection which can greatly slow down the collection. EDIT Put this trace statement before and after the loop take the output and subtract one from the other and that will show how many milliseconds the loop has run. Var date:Date = new Date( ); trace( date.getTime()).

– The_asMan May 3 at 18:13 You can also use projectPositions as your data provider you just need to customize your item renderer for it – The_asMan May 3 at 18:19 16 with 4 items in each of those... not a HUGE array by any means – Brds May 3 at 18:30 then your problem is not with this collection – The_asMan May 3 at 18:55.

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