iOS 9 - Xcode: "Follows Readable Width" programmatically
<p>In iOS 9, there is an option in the Xcode SIZE inspector called "Follows Readable Width" which will place padding on the left/right sides of a view so that it won't stretch out so far (especially on iPads) in order to make the content easier to read. </p>

<p>(You can see an example of this on the Twitter app when placed in landscape on iPhone 6/6s plus.)</p>

<p>Anyway, I cannot seem to find how to do this programmatically. In the Xcode SIZE inspector, it's just a checkbox you set. It's obviously a boolean value you can set on any UIView or anything that inherits from it. I just cannot seem to find anything close to it. </p>

<p>Anyone ever set this programmatically? Please see the attached screenshot.</p>

<p>Oh, I <em>can</em> find the 'Preserve Superview Margins' just fine, just not the 'Follows Readable Width' property.</p>

<p><a href="https://i.stack.imgur.com/mDD3p.png" rel="noreferrer"><img src="https://i.stack.imgur.com/mDD3p.png" alt="enter image description here"></a></p>