Show no button warning box for iPhone apps

IPhone DevelopmentShow no buttons for ApplicationsWarning boxIs the content to be introduced in this article, mainly aboutWarning boxLet's take a look at the implementation of the case. To display asynchronous information that does not require user interaction, you can create a UIAlertView without buttons.

Generally, a warning box without buttons has a feature that does not automatically disappear. Therefore, the warning box will disappear after we finish the task. You can call this method

 
 

  
  
– dismissWithClickedButtonIndex:animated: 
 
 

The following code creates a non-button UIAlertView and disappears after 3 s.

 
 

  
  
UIAlertView *baseAlert;  
  
  
 
  
  
- (void) action: (UIBarButtonItem *) item  
  
  
{  
  
  
    baseAlert = [[[UIAlertView alloc] initWithTitle:@"Please Wait" message:nil delegate:self 
  
  
 cancelButtonTitle:nil otherButtonTitles: nil] autorelease];  
  
  
    [baseAlert show];  
  
  
 
  
  
// Create and add the activity indicator  
  
  
UIActivityIndicatorView *aiv = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];  
  
  
aiv.center = CGPointMake(baseAlert.bounds.size.width / 2.0f, baseAlert.bounds.size.height - 40.0f);  
  
  
[aiv startAnimating];  
  
  
[baseAlert addSubview:aiv];  
  
  
[aiv release];  
  
  
 
  
  
 
  
  
// Auto dismiss after 3 seconds  
  
  
[self performSelector:@selector(performDismiss) withObject:nil afterDelay:3.0f];  
  
  
}  
  
  
 
  
  
- (void) performDismiss  
  
  
{  
  
  
    [baseAlert dismissWithClickedButtonIndex:0 animated:NO];  
  
  
} 
 
 

The effect is as follows:

Summary:IPhone DevelopmentShow no buttons for ApplicationsWarning boxI hope this article will help you!