show alert xcode and go back after alert - objective-c

Question

i want to show the alert and when somebody click on OK they need to be send to the page before. How can i make this?
I use the following code:
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"BOOYAH!"
message:#"Saved" delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];

Answer 1

Considering you have 1 option on the alert view and the delegate is self. Use this method in the same .m file as the code above
- (void)alertView:(UIAlertView *)alertV didDismissWithButtonIndex:(NSInteger)buttonIndex
{
//go back a page
[alertV autorelease];
}
Don't forget to release the alert view. I added it in the delegate method, but you can choose to release it right after showing it (only 1 release though)

Answer 2

Assign the UIAlertViewDelegate to self and then implement the following method is called
- (void) alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex
{
if (buttonIndex == buttonIndexForOK) { // Where buttonIndexForOK is the index for your ok button, in this case, that would be zero, but if you want an OK and a Cancel button this would be different.
// go back to the last page
}
}

Answer 3

UIAlertView follows the delegation design pattern that is extremely common in iOS development. You provide a delegate object, and when the object wants to tell you about something, it sends that delegate object a message.
In your code, you've provided self as the delegate. This means that this object needs to conform to the UIAlertViewDelegate protocol.
You will see that there are several methods you can implement to react to various events relating to the alert view. You should use the alertView:clickedButtonAtIndex: method, which provides an index parameter indicating which button was tapped.