通过代码退出IOS程序

-(void) tapClick:(UITapGestureRecognizer *)tap{
    [UIViewbeginAnimations:@"exitApplication"context:nil];
    [UIViewsetAnimationDuration:0.5];
    [UIViewsetAnimationDelegate:self];
     [UIViewsetAnimationTransition:UIViewAnimationCurveEaseOutforView:self.view.windowcache:NO];
    [UIView setAnimationDidStopSelector:@selector(animationFinished:finished:context:)];
    //self.view.window.bounds = CGRectMake(0, 0, 0, 0);
    self.view.window.bounds = CGRectMake(, , , );
    [UIViewcommitAnimations];
}
- (void)animationFinished:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {
    if ([animationID compare:@"exitApplication"] == ) {
        exit();
    }
}