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https://issues.apache.org/jira/browse/FLEX-33611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13709720#comment-13709720
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Ejaz Asghar commented on FLEX-33611:
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[~ovisvana] It doesnt need a sample code, because i'm not doing any thing 
fancy. just a list, with tilelayout and pass it 100 images, and test it on 
Nexus 7, Nexus 10. On iOS same list works flawlessly and some other phones with 
dual processor.  
                
> TileLayout scrolling is worst (v slow) on many android devices including 
> Nexus 7 and Nexus 10
> ---------------------------------------------------------------------------------------------
>
>                 Key: FLEX-33611
>                 URL: https://issues.apache.org/jira/browse/FLEX-33611
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: Spark: TileLayout
>    Affects Versions: Apache Flex 4.9.0
>         Environment: Flash Builder 4.7, Apache Flex 4.9, Air 3.7, Mobile 
> Project
>            Reporter: Ejaz Asghar
>            Priority: Blocker
>              Labels: mobile, performance, tilelayout
>
> Hi, 
> my app which shows 100 160x160 images on a tile layout works great on iOS, 
> but on many devices even Nexus 7 or Nexus 10 scrolling is very very slow. We 
> cant launch the product with this. However vertical layout is much much 
> better on same devices.
> It looks like TileList require a rewrite for mobile devices. I even specified 
> fixed values to columns, and tile sizes which are all 160x160 (no variable 
> heights/widths). but still its pretty slow.
> I'd appreciate if you guys incorporate a mobile friendly Tilelayout for Flex 
> 4.10, which provide fixed sizes of tiles and scroll as fast as vertical 
> layout.
>  
> Thanks

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