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    <p>The short answer is not really, OS X has an identifier property that can be set on a view that is used by NSLayoutConstraint to help identify views but that doesn't exist on iOS yet.</p> <p>However there is a 'work around' to implement something similar on iOS but it isn't pretty. First you have to establish a name for each view, this accomplished in the UIView category. Then you have to update the output for NSLayoutConstraint description to use the new tags.</p> <pre><code>@interface NSLayoutConstraint (Nametags) - (NSString *)asciiArtDescription; @end @interface UIView (Nametags) @property (nonatomic, strong) NSString *nametag; @end </code></pre> <p>Then provide the implementation as follows to change the output of NSLayout</p> <pre><code>#import &lt;objc/objc-runtime.h&gt; static const char nametag_key; @implementation NSLayoutConstraint (Nametags) - (NSString *)description { NSMutableString *myDescription = [NSMutableString stringWithFormat:@"%@, ", [self asciiArtDescription]]; UIView *firstView = (UIView *)[self firstItem]; if (firstView) { [myDescription appendFormat:@"First View: 0x%0x: %@, ", (int)firstView, firstView.nametag]; } UIView *secondView = (UIView *)[self secondItem]; if (secondView) { [myDescription appendFormat:@"Second View: 0x%0x: %@", (int)secondView, secondView.nametag]; } return myDescription; } @end @implementation UIView (Nametags) - (id) nametag { return objc_getAssociatedObject(self, (void *) &amp;nametag_key); } - (void)setNametag:(NSString *) theNametag { objc_setAssociatedObject(self, (void *) &amp;nametag_key, theNametag, OBJC_ASSOCIATION_RETAIN_NONATOMIC); } @end </code></pre> <p>Then you will be able to set names on your views like so</p> <pre><code>self.view.nametag = @"MyUsefulName"; </code></pre> <p>Or define them in IB</p> <p><img src="https://i.stack.imgur.com/V4003.png" alt="nametag in IB"></p> <p>Finally when ever you dump constraints you will get the names you provided in the output.</p> <pre><code>"V:|-(202)-[UIView:0x75606f0], First View: 0x75606f0: Blue View, Second View: 0x7560bd0: (null)", "V:[UIView:0x75606f0]-(72)-|, First View: 0x7560bd0: (null), Second View: 0x75606f0: Blue View", "V:[UIView:0x7560bd0(548)], First View: 0x7560bd0: (null), " </code></pre> <p>You should only use this code in your debug builds, don't ship it in an app because it accesses the private [NSLayoutConstraint asciiArtDescription] method.</p>
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    1. POMapping memory address of unsatisfyable NSLayoutConstraints to UI controls
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    1. USCory Powers
    1. USCory Powers
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    1. COInteresting technique. This could really be useful if you know about it from the start and make it part of your standard implementation routine. I do suspect a few controls, so I'll apply this techinque and see what happens.
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      1. USVaporwareWolf
    2. COThis is an interesting approach indeed. A useful addition is to just use the existing `accessibilityLabel` property on `UIView` rather than creating a new one property. You should be filling out the `accessibilityLabel` property anyhow. :)
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      1. USCharles A.
 

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