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Add Activity Indicator to Navigation Controller Bar

/ Published in: Objective C
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This adds a spinning activity indicator to the top navigation bar of a navigation controller.

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  1. // stop activity indicator
  2. 	UINavigationController *tempNavigationController = [self.navigationController.viewControllers objectAtIndex:2];		
  3. 	CGRect frame = CGRectMake(0.0, 0.0, 25.0, 25.0);  	
  4. 	UIActivityIndicatorView *loading = [[UIActivityIndicatorView alloc] initWithFrame:frame];  	
  5. 	[loading sizeToFit];  	
  6. 	loading.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin);  	
  7. 	UIBarButtonItem *statusInd = [[UIBarButtonItem alloc] initWithCustomView:loading];  		
  8. 	statusInd.style = UIBarButtonItemStylePlain;  	
  9. 	[tempNavigationController.navigationItem setRightBarButtonItem: statusInd animated:YES];

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