Why does a UITableView data source get loaded after rows are created?

Question

I have an interesting problem.

I am loading a UITableView asynchronously. I am trying to get the count:

prefs = [NSUserDefaults standardUserDefaults];

NSInteger dmCount = [prefs integerForKey:@"dmCount"];

NSLog(@"items count %d", [self.items count]); 

if (abs([self.items count] - dmCount) > 0) {
    [prefs setInteger:abs([self.items count] - dmCount)forKey:@"dmCount"];
}

NSLog(@"%d MESSAGES",abs([self.items count] - dmCount));

However, [self.items count] returns 0 when this code is executed, and then returns 4 (the actual value). I am guessing at the time of table creation my data source is 0, and once it has loaded it becomes 4. How can I make sure I get the correct count?

Answer 1

Have you thought about using Key-Value observing on the items property?

Answer 2

i should count the item size in the didFinishConnection delegate method