fixed issue with Layout type in alignFromTop

Examples/Programmatic/CardView/CardView.xcodeproj/project.pbxproj

@@ -11,6 +11,8 @@
 		967513CC1C136BB7009F455A /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 967513CB1C136BB7009F455A /* ViewController.swift */; };
 		967513D11C136BB7009F455A /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 967513D01C136BB7009F455A /* Assets.xcassets */; };
 		967513D41C136BB7009F455A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 967513D21C136BB7009F455A /* LaunchScreen.storyboard */; };
+		96B8C0AE1D04D0D90084F68A /* Material.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 96B8C0AD1D04D0D90084F68A /* Material.framework */; };
+		96B8C0AF1D04D0D90084F68A /* Material.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 96B8C0AD1D04D0D90084F68A /* Material.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 /* End PBXBuildFile section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -20,6 +22,7 @@
 			dstPath = "";
 			dstSubfolderSpec = 10;
 			files = (
+				96B8C0AF1D04D0D90084F68A /* Material.framework in Embed Frameworks */,
 			);
 			name = "Embed Frameworks";
 			runOnlyForDeploymentPostprocessing = 0;
@@ -33,6 +36,7 @@
 		967513D01C136BB7009F455A /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		967513D31C136BB7009F455A /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		967513D51C136BB7009F455A /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		96B8C0AD1D04D0D90084F68A /* Material.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; name = Material.framework; path = "/Users/danieldahan/Library/Developer/Xcode/DerivedData/Material-dciwtavdzrmtrifplxfnouazaqvx/Build/Products/Debug-iphonesimulator/Material.framework"; sourceTree = "<absolute>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -40,6 +44,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				96B8C0AE1D04D0D90084F68A /* Material.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -49,6 +54,7 @@
 		967513BD1C136BB7009F455A = {
 			isa = PBXGroup;
 			children = (
+				96B8C0AD1D04D0D90084F68A /* Material.framework */,
 				967513C81C136BB7009F455A /* CardView */,
 				967513C71C136BB7009F455A /* Products */,
 			);

Examples/Programmatic/Layout/Layout/ViewController.swift

@@ -41,8 +41,8 @@ class ViewController: UIViewController {
 	override func viewDidLoad() {
 		super.viewDidLoad()
 		prepareView()
-		prepareAlignToParentHorizontallyAndVerticallyExample()
-//		prepareCenterExample()
+//		prepareAlignToParentHorizontallyAndVerticallyExample()
+		prepareCenterExample()
 	}
 	
 	/// General preparation statements.

Sources/iOS/CardView.swift

@@ -256,9 +256,6 @@ public class CardView : MaterialPulseView {
 	public func reloadView() {
 		// clear constraints so new ones do not conflict
 		removeConstraints(constraints)
-		for v in subviews {
-			v.removeFromSuperview()
-		}
 		
 		var verticalFormat: String = "V:|"
 		var views: Dictionary<String, AnyObject> = Dictionary<String, AnyObject>()

Sources/iOS/ImageCardView.swift

@@ -353,9 +353,6 @@ public class ImageCardView : MaterialPulseView {
 	public func reloadView() {
 		// clear constraints so new ones do not conflict
 		removeConstraints(constraints)
-		for v in subviews {
-			v.removeFromSuperview()
-		}
 		
 		var verticalFormat: String = "V:|"
 		var views: Dictionary<String, AnyObject> = Dictionary<String, AnyObject>()

Sources/iOS/Layout.swift

@@ -145,7 +145,7 @@ public extension Layout {
 	/// AlignFromTop
 	public func alignFromTop(child: UIView, top: CGFloat = 0) {
 		if let v: UIView = context {
-			Layout.alignFromTopLeft(v, child: child, top: top)
+			Layout.alignFromTop(v, child: child, top: top)
 		}
 	}
 	
@@ -196,13 +196,13 @@ public extension Layout {
 public extension Layout {
 	/// Width
 	public class func width(parent: UIView, child: UIView, width: CGFloat = 0) {
-		prepareForConstraint(parent, children: [child])
+		prepareForConstraint(parent, child: child)
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .Width, multiplier: 1, constant: width))
 	}
 	
 	/// Height
 	public class func height(parent: UIView, child: UIView, height: CGFloat = 0) {
-		prepareForConstraint(parent, children: [child])
+		prepareForConstraint(parent, child: child)
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .Height, multiplier: 1, constant: height))
 	}
 	
@@ -240,14 +240,14 @@ public extension Layout {
 	
 	/// AlignToParentHorizontally
 	public class func alignToParentHorizontally(parent: UIView, child: UIView, left: CGFloat = 0, right: CGFloat = 0) {
-		prepareForConstraint(parent, children: [child])
+		prepareForConstraint(parent, child: child)
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Left, relatedBy: .Equal, toItem: parent, attribute: .Left, multiplier: 1, constant: left))
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Right, relatedBy: .Equal, toItem: parent, attribute: .Right, multiplier: 1, constant: -right))
 	}
 	
 	/// AlignToParentVertically
 	public class func alignToParentVertically(parent: UIView, child: UIView, top: CGFloat = 0, bottom: CGFloat = 0) {
-		prepareForConstraint(parent, children: [child])
+		prepareForConstraint(parent, child: child)
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Top, relatedBy: .Equal, toItem: parent, attribute: .Top, multiplier: 1, constant: top))
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Bottom, relatedBy: .Equal, toItem: parent, attribute: .Bottom, multiplier: 1, constant: -bottom))
 	}
@@ -284,25 +284,25 @@ public extension Layout {
 	
 	/// AlignFromTop
 	public class func alignFromTop(parent: UIView, child: UIView, top: CGFloat = 0) {
-		prepareForConstraint(parent, children: [child])
+		prepareForConstraint(parent, child: child)
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Top, relatedBy: .Equal, toItem: parent, attribute: .Top, multiplier: 1, constant: top))
 	}
 	
 	/// AlignFromLeft
 	public class func alignFromLeft(parent: UIView, child: UIView, left: CGFloat = 0) {
-		prepareForConstraint(parent, children: [child])
+		prepareForConstraint(parent, child: child)
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Left, relatedBy: .Equal, toItem: parent, attribute: .Left, multiplier: 1, constant: left))
 	}
 	
 	/// AlignFromBottom
 	public class func alignFromBottom(parent: UIView, child: UIView, bottom: CGFloat = 0) {
-		prepareForConstraint(parent, children: [child])
+		prepareForConstraint(parent, child: child)
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Bottom, relatedBy: .Equal, toItem: parent, attribute: .Bottom, multiplier: 1, constant: -bottom))
 	}
 	
 	/// AlignFromRight
 	public class func alignFromRight(parent: UIView, child: UIView, right: CGFloat = 0) {
-		prepareForConstraint(parent, children: [child])
+		prepareForConstraint(parent, child: child)
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Right, relatedBy: .Equal, toItem: parent, attribute: .Right, multiplier: 1, constant: -right))
 	}
 	
@@ -314,13 +314,13 @@ public extension Layout {
 	
 	/// CenterHorizontally
 	public class func centerHorizontally(parent: UIView, child: UIView, constant: CGFloat = 0) {
-		prepareForConstraint(parent, children: [child])
+		prepareForConstraint(parent, child: child)
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .CenterX, relatedBy: .Equal, toItem: parent, attribute: .CenterX, multiplier: 1, constant: constant))
 	}
 	
 	/// CenterVertically
 	public class func centerVertically(parent: UIView, child: UIView, constant: CGFloat = 0) {
-		prepareForConstraint(parent, children: [child])
+		prepareForConstraint(parent, child: child)
 		parent.addConstraint(NSLayoutConstraint(item: child, attribute: .CenterY, relatedBy: .Equal, toItem: parent, attribute: .CenterY, multiplier: 1, constant: constant))
 	}
 	
@@ -340,12 +340,17 @@ public extension Layout {
 	}
 	
 	/// prepareForConstraint
+	private class func prepareForConstraint(parent: UIView, child: UIView) {
+		if parent != child.superview {
+			parent.addSubview(child)
+		}
+		child.translatesAutoresizingMaskIntoConstraints = false
+	}
+	
+	/// prepareForConstraint
 	private class func prepareForConstraint(parent: UIView, children: [UIView]) {
 		for v in children {
-			if parent != v.superview {
-				parent.addSubview(v)
-			}
-			v.translatesAutoresizingMaskIntoConstraints = false
+			prepareForConstraint(parent, child: v)
 		}
 	}
 }