ios - How to constrain view's width to device width in interface builder? -

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i have view hierarchy

enter image description here

i want content grow vertically in content view not horizontally. want constrain contentview's width same device's width. how can in interface builder?

note: image's width in image view bigger device's width, right contentview's size grows both vertically , horizontally

just add constraints content view leading space,trailing space,top space,bottom space along fix content view width constraint constant , create outlet width constraint value , in view controller side write method as

-(void)viewdidlayoutsubviews {

_scrollviewcontentviewwidthconstraint.constant = self.view.frame.size.width;

}


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