Reload data of UITableView in background

Question

In my app, I have a UITableViewController.

Its tableView is divided in 3 sections.

I download datas for each of those sections from my server. To do this, I have

Answer 1

One other thing. Pulling data from a server and updating table cells is pretty common. No need for queues or timers here. Here's an alternative structure.

Say you're pulling mp3's from your server : Your model class is : Music.h/m Your Model manager is : MusicManager.h/m (Singleton) - it will contain an array of music objects - that singleton is basically your datasource; and finally your UItableViewController : MusicTableVC.h/m

In MusicManager.h/m : You have an NSMutableArray which will be loaded with Music.h objects that you've pull from the server. You can do that as soon as you app loads without even waiting for the TableViewController.

Inside MusicManager you have a few helper methods to add or remove items from the mutableArray and provide the count and of course your networking methods.

Finally : Post a notification in your network code. Your UITableViewController should listen/observe that notification and "reload" accordingly.

 [[NSNotificationCenter defaultCenter] postNotificationName:@"NewMusicAdded" object:nil];

You query data from your server, parse the data into Music objects add them to your NSMutable array and post a notification to let the table update itself.

Pretty standard recipe.