- (void) anyMethod
{
    myAlert = [[UIAlertView alloc] initWithTitle:@"Überschrift"
                               message:@"\nText"
                               delegate:self
                               cancelButtonTitle:nil
                               otherButtonTitles: nil];
   
   [NSTimer scheduledTimerWithTimeInterval:3.0f
         target:self
         selector:@selector(doCloseAlertView)
         userInfo:nil
         repeats:NO];
   
   [myAlert show];
}

- (void) doCloseAlertView
{
    [myAlert dismissWithClickedButtonIndex:0 animated:NO];
    [myAlert release];
    myAlert = NULL;
}