quit ios app with animation

exit.mm

- (void)exitApplication {    
    [UIView beginAnimations:@"exitApplication" context:nil];    
    [UIView setAnimationDuration:0.5];    
    [UIView setAnimationDelegate:self];    
    [UIView setAnimationTransition:UIViewAnimationCurveEaseOut forView:self.window cache:NO];    
    [UIView setAnimationDidStopSelector:@selector(animationFinished:finished:context:)];    
    self.window.bounds = CGRectMake(0, 0, 0, 0);    
    [UIView commitAnimations];    
}  
- (void)animationFinished:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {    
    if ([animationID compare:@"exitApplication"] == 0) {    
        exit(0);    
    }  
}