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elementi BASE: gestione eventi tra classi

/ Published in: Objective C
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  1. /** per registrare un azione in base ad un evento:
  2. */
  3.     // Erase the view when recieving a notification named "shake" from the NSNotificationCenter object
  4. 	// The "shake" nofification is posted by the PaintingWindow object when user shakes the device
  5. 	[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(eraseView) name:@"shake" object:nil];
  6.  
  7. /** INVIO dell'evento
  8. */
  9.  
  10. 	// User was shaking the device. Post a notification named "shake".
  11. 	[[NSNotificationCenter defaultCenter] postNotificationName:@"shake" object:self];
  12.  

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