这是情况。
我有一个使用自动布局的 UIScrollView，当我旋转它时，它成功地调整到屏幕上，我的问题在于滚动视图的内容没有调整。
scrollView 是红色部分。
这是我的代码：
-(void)preparePromotions
{
CGRect frameViewPromotions = [self getPossibleFrame];
frameViewPromotions.origin.x = 10.0f;
frameViewPromotions.origin.y = 10.0f;
if (!_promotionsViewController)
{
_promotionsViewController = [[PromotionsViewController alloc] init];
}
_promotionsViewController.view.frame = frameViewPromotions;
_promotionsViewController.margin = 2.0f;
_promotionsViewController.diameterPageController = 10.0f;
_promotionsViewController.marginPageController = 15.0f;
_promotionsViewController.frameContentView = frameViewPromotions;
[self addChildViewController:_promotionsViewController];
_promotionsViewController.view.translatesAutoresizingMaskIntoConstraints = NO;
[self.view addSubview:_promotionsViewController.view];
[self createCosntraintWithView:_promotionsViewController.view];
}
-(void)createCosntraintWithView:(UIView *)subview
{
NSDictionary *views = NSDictionaryOfVariableBindings(subview);
[self.view addConstraints:
[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-10-[subview]-10-|"
options:0
metrics:nil
views:views]];
[self.view addConstraints:
[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-40-[subview]-50-|"
options:0
metrics:nil
views:views]];
}