Bring ScrollView to front - xcode

I have a View, inside this view I have on the right side some buttons and a ScrollView.
When you press one of the buttons, the scrollview comes up and more buttons are shown.
Now when you press one of the buttons of the scrollview in the main view is placed a image and the scrollview animated thru the right side.
When I push the next button, the scrollview is under the image and not over the image :(
I'ved tried to place some code at the scrollview to bring it in front
[waende bringSubviewToFront:waende];
or
[waende bringSubviewToFront:button];
but still doesn't work
In the IB the ScrollView is in Foreground.


The solution code is:
[self.view bringSubviewToFront:waende];

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Please see below screenshot for reference.

It's probably easiest to have the scroll view contain a single view, which then contains all of your scrollable content. That single view should be anchored to all 4 sides of the scroll view, and if it's only meant to scroll vertically (which is what your screenshot makes it look like), then set the content view to be the same width as the parent of the scroll view.

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Constraints
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Make sure your Content view of Scroll View DOES NOT have CenterY constraint set to Scroll View, cause that'd make content view stuck with Scroll View and it'd never be able to scroll. (That happens to me the last time I was stuck)
Interface Builder settings
Make sure the check in Interface Builder under Scroll View is checked:
Scrolling section, Scrolling Enabled.

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