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In iOS 7, we can now add a constraint between a view and the top layout guide, which I think is very useful to solve the status bar offset issue in iOS7(especially when there is no navigation bar in the view).
In a storyboard file, I can add this kind of constraints easily. Just hold the control key then drag the view to the container, it will show the "Top Space to Top Layout Guide" option.
But when I do the same operation in a xib file, this option disappears.
So, is there any way to add this kind of constraints in xib files? Or do I have to add them with code?
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Select the options for aligning the selected views, and click the Add Constraints button. Interface Builder creates the constraints needed to ensure those alignments.
To create constraints select the button and click the Align icon in the auto layout menu. A popover menu will appear, check both “Horizontal in container” and “Vertically in container” options to center the button on the screen. Then click the “Add 2 Constraints” button. Run the application.
Select View Controller -> File Inspector (first tab) -> Use safe area layout guides (uncheck the checkbox). You can also change it programmatically in viewDidLoad(). Hope this Helps!
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] ]; If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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