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Bonus TIPS for Successful Posting

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Mobile App performace optimization

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    Mobile App performace optimization

    Hi,

    I'm developing an offline app based on the new PunchList demo app. Its now significantly larger and more complex than the demo and is becoming slow to use including with Alpha Launch / Phone Gap. The prerendered file size for the main component is 6.4MB. For an online app I would use embedded components and kill them when not being used. This is not an option offline.

    I have noticed the Panel is a "Section" option but have not been able to find any documentation for this feature and it appears to generate errors when I try it.

    Any tips for improving performance would be greatly appreciated.

    Thanks

    #2
    Re: Mobile App performace optimization

    Peter, I'm working on performance too and believe it's data related. If you open up your apps IPA/APK you can find all of the data from the last time you used the app before running a build. I've done several experiments and have proven to myself performance goes up/down based on the amount of data that's included in the IPA/APK files. When I reduce the amount of data in the install file, the app runs very fast but as soon as I run a refresh (pull data down from the server to the device) it slows down

    Slow down in my case means how long it takes to open up a panel or add a new record. Once the panel loads, even with thousands of records, scrolling, searching, filtering works well. My next step to try to improve performance is to switch over to using t-sql on the device

    My app has been built from scratch and is set up for offline. Environment is SQL Server 2008 and Alpha build 4548-4950

    Comment


      #3
      Re: Mobile App performace optimization

      Interesting I have not noticed that however the more data loaded the slower it gets and that seems reasonable. With my test app with 5 lists in 1 UX performance was slow however I have now dropped that to 3 Lists and its much better. Unless I can find a way to optimize the UX I will be forced to limit the off line functionality of the app which is unfortunate.

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        #4
        Re: Mobile App performace optimization

        If your lists are just viewing data (in the main) then use the viewbox instead.
        Insanity: doing the same thing over and over again and expecting different results.
        Albert Einstein, (attributed)
        US (German-born) physicist (1879 - 1955)

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          #5
          Re: Mobile App performace optimization

          Thanks but I need a 'Standard' list for Off Line. I already have a few viewboxs for read only "Lists" - they work great and are lightweight.

          Cheers

          Comment


            #6
            Re: Mobile App performace optimization

            Use the Viewbox instead of the List if you do not require any features that only the List control can provide. You should also use List Virtualization if your list has more than a few hundred rows.

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