Jerky display when scrolling threads on iPad

[David Kwok]

It seems when scrolling in the iPad, the scrollpane is redrawing or performing some computational operations resulting in substantial jerking when fast scrolling. Would the iOS development team look into it please?

 

[Rashkae]

I think they're not properly calling the Grand Central Dispatch and NSOperation APIs.

 

[David Kwok]

I think they're not properly calling the Grand Central Dispatch and NSOperation APIs.

Unlikely. I did quite a fair abit of iOS development for a well known local company for their app previously. The cell views in table must be design to not redraw during scrolling except when display for the first time, to be smooth. If redrawing is done more often than that, it will be more and more jerky.

Issue is for the threads title table view, i don't see any stuffs on it that is updating in realtime that warrant any form of redraw.