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Create a Busy Activity Indicator Spinner

/ Published in: Objective C
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  1. // CREATE & ADD SPINNER
  2. UIActivityIndicatorView *activityIndicator = 
  3.     [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
  4. UIBarButtonItem * barButton = 
  5.     [[UIBarButtonItem alloc] initWithCustomView:activityIndicator];
  6.  
  7. // Set to Left or Right
  8. [[self navigationItem] setRightBarButtonItem:barButton];
  9.  
  10. [barButton release];
  11. [activityIndicator startAnimating];
  12.  
  13.  
  14.  
  15.  
  16. // REMOVE SPINNER
  17. [[self navigationItem] setLRightBarButtonItem:nil];
  18. [activityIndicator stopAnimating];
  19. [activityIndicator release];

URL: http://iphonedevelopertips.com/user-interface/adding-an-activity-indicator-spinner-to-navigation-bar.html

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