activity indicator only animates once

i have created a custom "load more" cell at the bottom of my table view. And am trying to animate a activity indicator while the table is being populated with 5 more rows. Because the data loads too quickly, i have put a 2 sec timer to delay the process and want to show the indicator animation.

I seem to be able to get the i开发者_C百科ndicator animated once then it wont animate any more, however the rest of the code still executes and works fine.

here is my code for when user selects the cell...

[moreCellIndicator startAnimating];           

//setup activity indicator timer
NSTimer *activityTimer = [NSTimer scheduledTimerWithTimeInterval: 2.0
                                                      target: self
                                                    selector:@selector(loadMoreTimer:)
                                                    userInfo: nil repeats:NO];

here is the code that triggers after the timer...

- (void) loadMoreTimer:(NSTimer *)theTimer {   

    //stop animating activity indicator
    [moreCellIndicator stopAnimating];

    //refresh table
    ... data gets reloaded

}

for some reason the first time the code is run the indicator will animate, but any more presses and it wont animate.

any help would be appreciated.

chris

edit: moreCellIndicator is declared like so...

UIActivityIndicatorView *moreCellIndicator;    
@property (nonatomic, retain) IBOutlet UIActivityIndicatorView *moreCellIndicator;

Try to release the activity indicator after you stop it, and initialize it before you start it:

moreCellIndicator = [UIActivityIndicatorView alloc] init];

and instead of using NSTimer use:

[self performSelector:@selector(loadMoreTimer:) withObject:self afterTimeDelay:2];

And change your method to (id):sender

- (void)loadMoreTimer:(id)sender