Is there any way to add constraint between a view and the top layout guide in a xib file?
You should refer the following example, this will definitely help you for your problem. I got this from http://developer.apple.com .
[button setTranslatesAutoresizingMaskIntoConstraints: NO];id topGuide = myViewController.topLayoutGuide;NSDictionary *viewsDictionary = NSDictionaryOfVariableBindings (button, topGuide);[myViewController.view addConstraints: [NSLayoutConstraint constraintsWithVisualFormat: @"V:[topGuide]-20-[button]" options: 0 metrics: nil views: viewsDictionary]];
Here is my alternative solution.
Find a UIView as a pivot, set its top layout constraint a fixed vertical space to container's top.
Control-Drag this layout constraint as an IBOutlet, such as
@property (weak, nonatomic) IBOutlet NSLayoutConstraint *topLayoutConstraint;
Finally, just override viewWillLayoutSubviews method of UIViewController like following
- (void)viewWillLayoutSubviews{ [super viewWillLayoutSubviews]; self.topLayoutConstraint.constant = [self.topLayoutGuide length] + YOUR_TOP_CONSTRSINT;}
All the other views' top constraint are based this pivot view, all done :)