To experiment with autolayout and uiscrollview's I have been using [this example](https://github.com/ehuynh/ScrollViewAutoLayoutExample)

which I have edited to include 2 views in the scroll view, I have setup the autolayout constraints to position the views horizontally adjacent with their size set to fill the scroll view frame.

```
UIView *beeView = [[[NSBundle mainBundle] loadNibNamed:@"BeeView" owner:nil options:nil] firstObject];
beeView.translatesAutoresizingMaskIntoConstraints = NO;
[self.scrollView addSubview:beeView];
UIView *beeView2 = [[[NSBundle mainBundle] loadNibNamed:@"BeeView" owner:nil options:nil] firstObject];
beeView2.backgroundColor= [UIColor orangeColor];
beeView2.translatesAutoresizingMaskIntoConstraints = NO;
[self.scrollView addSubview:beeView2];

NSDictionary *views = @{@"beeView":beeView,@"beeView2":beeView2, @"scrollView":self.scrollView};
NSDictionary *metrics = @{@"height" : @200};
[self.scrollView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[beeView(==scrollView)][beeView2(==beeView)]|" options:NSLayoutFormatAlignAllTop | NSLayoutFormatAlignAllBottom metrics:metrics views:views]];
[self.scrollView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[beeView(==scrollView)]|" options:kNilOptions metrics:metrics views:views]];

```

which nicely produces what I intended.

However, if the scroll view's `contentOffset` is nonzero and the device is rotated from portrait to landscape, the content offset of the scroll view is automatically set to `32px`. (see screenshot)
[![content offset wrong](https://i.stack.imgur.com/8jPMJ.png)](https://i.stack.imgur.com/8jPMJ.png)

I have tried saving `contentOffset` and setting it to this saved value when `scrollViewDidEndDecelerating:` is called which works but is ugly as the scroll view scrolls to a 32px offset and then back to where I want it to be.

How do I control the scroll view's `contentOffset`? Are the autolayout constraints wrong? Are there extra constraints I can add to control the `contentOffset` when resizing the view?