Copy constraints

trafi · May 15, 2020 · da9e839 · da9e839
1 parent 0acc261
commit da9e839
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/Sources/NibLoader.swift b/Sources/NibLoader.swift
@@ -21,6 +21,7 @@ public struct IBNibLoader<NibLoadableView: NibLoadable> where NibLoadableView: U
 
         let nibView = type(of: view).fromNib()
         copyProperties(to: nibView)
+        copyConstraints(to: nibView)
 
         return nibView
     }
@@ -71,6 +72,20 @@ public struct IBNibLoader<NibLoadableView: NibLoadable> where NibLoadableView: U
         nibView.isHidden = view.isHidden
     }
 
+    private func copyConstraints(to nibView: UIView) {
+        nibView.addConstraints(
+            view.constraints.map {
+                NSLayoutConstraint(
+                    item: $0.firstItem === view ? nibView : $0.firstItem as Any,
+                    attribute: $0.firstAttribute,
+                    relatedBy: $0.relation,
+                    toItem: $0.secondItem === view ? nibView : $0.secondItem,
+                    attribute: $0.secondAttribute,
+                    multiplier: $0.multiplier,
+                    constant: $0.constant)
+            }
+        )
+    }
 }