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iPhone: Use UIAlertView to confirm a deletion

/ Published in: Objective C
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You must add UIAlertViewDelegate to the protocols for your class

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  1. // confirm the deletion..
  2. UIAlertView *alert = [[UIAlertView alloc] 
  3.   initWithTitle: theTitle
  4.   message: msg
  5.   delegate: self
  6.   cancelButtonTitle: @"Cancel"
  7.   otherButtonTitles: @"Delete", nil];
  8.   alert.tag = LIST_CONFIRM_DELETE; // should use a different define (e.g. to 1) each time you use an alertview in a class, as each will call the same clickedButtonAtIndex selector.
  9. [alert show];
  10. [alert release];
  11.  
  12.  
  13. // Called when an alertview button is clicked
  14. - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
  15. 	switch (alertView.tag) {
  16. 		case LIST_CONFIRM_DELETE:
  17. 		{
  18. 			switch (buttonIndex) {
  19. 				case 0: // cancel
  20. 				{	
  21. 					NSLog(@"Delete was cancelled by the user");
  22. 				}
  23. 					break;
  24. 				case 1: // delete
  25. 				{
  26. 					// do the delete
  27. 				}
  28. 					break;
  29. 			}
  30.  
  31. 			break;
  32. 		default:
  33. 			NSLog(@"WebAppListVC.alertView: clickedButton at index. Unknown alert type");
  34. 		}
  35. 	}	
  36. }

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