Implementing a UIActivityIndicatorView (spinner) -- iOS

Place this in the .h file

// inside the interface

IBOutlet UIActivityIndicatorView *activityIndicator;

// outside the interface

@property (nonatomic, assign) UIActivityIndicatorView *activityIndicator;

Place in this .m file

in the synthesize section

@synthesize activityIndicator;

// inside viewDidLoad

-(void) viewDidLoad

{

...

    self.activityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyleGray;

    

    [self.view addSubview:self.activityIndicator];

    

    self.activityIndicator.center = CGPointMake(self.view.frame.size.width / 2, self.view.frame.size.height / 2);

    activityIndicator.hidden = YES;

}

// inside the place to activate the spinner

[self.activityIndicator startAnimating];

// inside the place to stop the spinner

[self.activityIndicator stopAnimating];