如何让一组图片旋转

如何让一组图片旋转 有时候 我们会根据项目的要求 把一个图片以相反的方向旋转以下
如果让美工在做一个 不是最佳的办法 直接把当前图片翻转以下 就可以

“ nextButton.transform = CGAffineTransformScale(nextButton.transform,
-1, 1);”

UIButton *previousButton = [UIButton
buttonWithType:101];
[previousButton
setTitle:@"<"
forState:UIControlStateNormal];
previousButton.frame =
CGRectMake(0.f,
0.f, 30.f,
80.f);
previousButton.center =
CGPointMake(previousButton.frame.size.width /
2.f, pagingView.center.y);
[previousButton
addTarget:pagingView
action:@selector(scrollToPreviousPage)
forControlEvents:UIControlEventTouchUpInside];
[self.view
addSubview:previousButton];

UIButton *nextButton = [UIButton
buttonWithType:101];
[nextButton
setTitle:@"<"
forState:UIControlStateNormal];
nextButton.transform =
CGAffineTransformScale(nextButton.transform, -1,
1);
nextButton.frame =
CGRectMake(0.f,
0.f, 30.f,
80.f);
nextButton.center =
CGPointMake(pagingView.frame.size.width - previousButton.frame.size.width
/ 2.f,
pagingView.center.y);
[nextButton
addTarget:pagingView
action:@selector(scrollToNextPage)
forControlEvents:UIControlEventTouchUpInside];
[self.view
addSubview:nextButton];