IOS：停止 UIAlert 循环

Question

I have this code:

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
      if(buttonIndex == 0)
      {

      }
      else if(buttonIndex == 1)
      {
           UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Danger" 
                                                        message:@"war"
                                                       delegate:self 
                                              cancelButtonTitle:@"OK"
                                              otherButtonTitles:nil];
    [alertView show];
    [alertView release];

      }
}

but but every time i push ok of this UIAlert it return inside this delegate method; how can I solve this thing? Can I use a BOOL for the control?

Answer 1

Set the delegate of the second alertView to nil.

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Danger" 
                                                    message:@"war"
                                                   delegate:nil 
                                          cancelButtonTitle:@"OK"
                                          otherButtonTitles:nil];

However, if you wish to add options to the second on in the future, you can set a tag value to the alertView and check the tags on call of the delegate method. Depending on the tag value you would perform a different task.

Answer 2

You can set the tag property of the altertView to 1 like this

alertView.tag = 1;

and change your code to:

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{

      if ([alertView tag] != 1) {
          if(buttonIndex == 0)
          {

          }
          else if(buttonIndex == 1)
          {
               UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Danger" 
                                                        message:@"war"
                                                       delegate:self 
                                              cancelButtonTitle:@"OK"
                                              otherButtonTitles:nil];
              alertView.tag = 1;
              [alertView show];
              [alertView release];

          }
       }
}

You could also change the delegate of the alert view.

Answer 3

you can't stop it until and unless you set the delegate property nil .

Use as below

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
          if(buttonIndex == 0)
          {

          }
          else if(buttonIndex == 1)
          {
               UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Danger" 
                                                        message:@"war"
                                                       delegate:nil                                                  cancelButtonTitle:@"OK"
                                              otherButtonTitles:nil];
              alertView.tag = 1;
              [alertView show];
              [alertView release];

          }
}