UIButton *downButtonOne = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, self.bounds.size.width, 50)];
[downButtonOne setImage:[UIImage imageNamed:@"main_advertisement1.png"] forState:UIControlStateNormal];
[self addSubview:downButtonOne];
UIButton *downButtonTwo = [UIButton buttonWithType:UIButtonTypeCustom];
downButtonTwo.frame = CGRectMake(0, 0, self.bounds.size.width, 50);
[downButtonTwo setImage:[UIImage imageNamed:@"main_advertisement.png"] forState:UIControlStateNormal];
[self addSubview:downButtonTwo];
[NSTimer scheduledTimerWithTimeInterval:5 target:self selector:@selector(adAnimation) userInfo:nil repeats:YES];
- (void)adAnimation
{
[UIView animateWithDuration:1.0 animations:^{
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self cache:YES];
[self exchangeSubviewAtIndex:0 withSubviewAtIndex:1];
}];
}