Possible Duplicate:
How to make ui responsive all the time and do background updating?
Hi All,
I am creating a application which displays 8 thumbnails per page and it can have n pages. Each of these thumbnails are UIViews and are added to UIScrollView. However i have implemented Paging using the Apple sample code.
The prob:
- Each thumbnail(UIView) takes 150 millisecs to be created and added to scroll view
- Hence for 3 pages it takes awful huge time to be created and added to the UI Scrollview.
- At this point the scroll view is not very respsonsive and it is very jerky and gives a bad user experience
- How can i create the thumbnails and add them to UIScrollview without affecting the touch responsiveness? I want them to run independent of the main thread which is resposible for handling touch events (i suppose).
Also i would like to mention that when a thumbnail is created i trigger a Async download of the image and the delegate method is called when download is complete.
Let me know the the options i have to make this more responsive and update UI without affecting the touch operations. The page control works fine with lazy loading of the grid of thumbnails.
TIA,
Praveen S