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Add labeled method to docs (#485) 

The labeled feature is amazing for debugging, but is not obviously documented.
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Tyler Alves 2018-05-18 21:50:23 -07:00 committed by Robert Payne
parent dd786e32c9
commit 5a012e926a
1 changed files with 19 additions and 1 deletions
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@ -180,7 +180,7 @@ make.left.equalTo(view).offset(UIEdgeInsets(top: 10, left: 0, bottom: 10, right:
> `.priority` allows you to specify an exact priority > `.priority` allows you to specify an exact priority
Priorities are can be tacked on to the end of a constraint chain like so: Priorities can be tacked on to the end of a constraint chain like so:
```swift ```swift
make.top.equalTo(label.snp.top).priority(600) make.top.equalTo(label.snp.top).priority(600)
@ -354,6 +354,24 @@ class MyViewController: UIVewController {
} }
``` ```
### Debug with ease
> `.labeled` allows you to specify constraint labels for debug logs
Labels can be tacked on to the end of a constraint chain like so:
```swift
button.snp.makeConstraints { (make) -> Void in
make.top.equalTo(otherView).labeled("buttonViewTopConstraint")
}
```
Resulting `Unable to simultaneously satisfy constraints.` logs will use constraint labels to clearly identify which constraints need attention:
```
"<SnapKit.LayoutConstraint:buttonViewTopConstraint@SignUpViewController.swift#311
UIView:0x7fd98491e4c0.leading == UIView:0x7fd983633880.leading>"
```
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