Question

I am working on a an application which is very simple
a navigation controller with a table view
when the user clicks a row, he is directed to the details view.

However, the details view pulls data from Core Data. i am pulling a relatively large amount of data that takes about three seconds to load.

I wanted to add that UIActivityIndicatorView to show progress.

I tried to start the animation once the user clicks the row, so i set it to animate in didSelectRowAtIndexPath

For some reason, the Activity Indicator doesn’t start before the pushing of the details view.

Any idea why? or the best way to implement such an idea?

~Adham

Answer 1

Because you start the animation and then start a large operation in the same thread. Consider running that 3 second operation in a new thread. Look at NSOperationQueue and then create a NSOperation to run that procedure. It will work this way.