iOS，没有按钮解除警报？

Question

I want to present an alert window with no button on it, that means user can't close it by themselves, only the code from mine can dismiss the alert. How to implement that?

Answer 1

UIAlertView *message = [[UIAlertView alloc] initWithTitle:@"Hello World!"
                                                  message:@"This is sample message."
                                                 delegate:self
                                        cancelButtonTitle:nil
                                        otherButtonTitles:nil];
message.tag = 123;
[message show];
[message release]

use this to make alert with no button

To dismiss the alertview use some logic similar to this

UIAlertView *alert = (UIAlertView)[[self.view viewWithTag:123]
[alert dismissWithClickedButtonIndex:0 animated:TRUE];