Exibir carregando / loading ate completar uma função
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 |
//Cria um Activity Indicator @property (weak, nonatomic) IBOutlet UIActivityIndicatorView *spinner; - (IBAction) someMethod { [theActivityIndicator startAnimating]; [self performSelector: @selector(doSomethingSlow) withObject: nil afterDelay: 0]; return; } - (void) doSomethingSlow { //perform time-consuming tasks [theActivityIndicator stopAnimating]; } |