activity-indicator

I add the below piece of code in the view where i wanted the activity indicator in the navigation bar. activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray]; UIBarButtonItem * barButton = [[UIBarButtonItem alloc] initWithCustomView:activityIndicator]; [self navigationItem].rightBarButtonItem = barButton; [activityIndicator startAnimating];