Merge pull request #437 from mohpor/development

New Layout API added to Material and Example Projects

Examples/Programmatic/App/App/AppLeftViewController.swift

@@ -96,15 +96,8 @@ class AppLeftViewController: UIViewController {
 		nameLabel.textColor = MaterialColor.white
 		nameLabel.font = RobotoFont.mediumWithSize(18)
 		
-		view.layout.size(profileView, width: 72, height: 72)
-		view.layout.align.topLeft(profileView, top: 30, left: (view.bounds.width - 72) / 2)
-		
-		view.addSubview(nameLabel)
-		view.layout.align
-		Layout.alignFromTop(view, child: nameLabel, top: 130)
-		Layout.alignToParentHorizontally(view, child: nameLabel, left: 20, right: 20)
-//		view.layout.alignFromTop(nameLabel, top: 130)
-//		view.layout.horizontally(nameLabel, left: 20, right: 20)
+		view.layout(profileView).width(72).height(72).top(30).centerHorizontally()
+        view.layout(nameLabel).top(130).left(20).right(20)
 	}
 	
 	/// Prepares the tableView.
@@ -116,7 +109,7 @@ class AppLeftViewController: UIViewController {
 		tableView.separatorStyle = .None
 		
 		// Use Layout to easily align the tableView.
-		view.layout.align.edges(tableView, top: 170)
+        view.layout(tableView).edges(top: 170)
 	}
 }
 

Examples/Programmatic/App/App/AppMenuController.swift

@@ -156,8 +156,8 @@ class AppMenuController: MenuController {
 		menuView.menu.views = [menuButton, blueButton, greenButton, yellowButton]
 		menuView.delegate = self
         
-		view.layout.size(menuView, width: baseSize.width, height: baseSize.height)
-		view.layout.align.bottomRight(menuView, bottom: menuViewInset, right: menuViewInset)
+        view.layout(menuView).width(baseSize.width).height(baseSize.height).bottom(menuViewInset).right(menuViewInset)
+        
 	}
     
     /// Prepare tabBarItem.

Examples/Programmatic/App/App/ItemViewController.swift

@@ -82,7 +82,7 @@ class ItemViewController: UIViewController {
 		scrollView.frame = view.bounds
 		scrollView.removeConstraints(scrollView.constraints)
 		
-		scrollView.layout.width(imageCardView, width: scrollView.bounds.width)
+		scrollView.layout(imageCardView).width(scrollView.bounds.width)
 		imageCardView.layoutIfNeeded()
 		
 		scrollView.contentSize = CGSizeMake(view.bounds.width, imageCardView.height)

Examples/Programmatic/App/App/RecipesViewController.swift

@@ -169,7 +169,7 @@ class RecipesViewController: UIViewController {
 		tableView.delegate = self
 		
 		// Use Layout to easily align the tableView.
-		view.layout.align.edges(tableView)
+		view.layout(tableView).edges()
 	}
 }
 
@@ -214,7 +214,7 @@ extension RecipesViewController: UITableViewDataSource {
 		label.textColor = MaterialColor.grey.darken1
 		label.text = "Favorites"
 		
-		header.layout.align.edges(label, left: 24)
+		header.layout(label).edges(left: 24)
 		
 		return header
 	}

Examples/Programmatic/App/App/RecommendationViewController.swift

@@ -70,7 +70,7 @@ class RecommendationViewController: UIViewController {
 		tableView.delegate = self
 		
 		// Use Layout to easily align the tableView.
-		view.layout.align.edges(tableView)
+		view.layout(tableView).edges()
 	}
 }
 
@@ -115,7 +115,7 @@ extension RecommendationViewController: UITableViewDataSource {
 		label.textColor = MaterialColor.grey.darken1
 		label.text = "Recommendations"
 		
-		header.layout.align.edges(label, left: 24)
+		header.layout(label).edges(left: 24)
 		
 		return header
 	}

Examples/Programmatic/CaptureView/CaptureView/ViewController.swift

@@ -226,7 +226,7 @@ class ViewController: UIViewController, CaptureViewDelegate, CaptureSessionDeleg
 		captureView.tapToExposeEnabled = true
 		captureView.delegate = self
 		captureView.captureSession.delegate = self
-		view.layout.align(captureView)
+		view.layout(captureView).edges()
 	}
 	
 	/**

Examples/Programmatic/CardView/CardView/ViewController.swift

@@ -79,8 +79,7 @@ class ViewController: UIViewController {
 		cardView.leftButtons = [btn1, btn2]
 		
 		// To support orientation changes, use Layout.
-		view.layout.alignFromTop(cardView, top: 100)
-		view.layout.horizontally(cardView, left: 20, right: 20)
+        view.layout(cardView).top(100).left(20).right(20)
 	}
 	
 	private func prepareCardViewWithoutPulseBackgroundImageExample() {
@@ -117,8 +116,7 @@ class ViewController: UIViewController {
 		cardView.leftButtons = [btn1]
 		
 		// To support orientation changes, use Layout.
-		view.layout.alignFromTop(cardView, top: 100)
-		view.layout.horizontally(cardView, left: 20, right: 20)
+		view.layout(cardView).top(100).left(20).right(20)
 	}
 	
 	private func prepareCardViewWithPulseBackgroundImageExample() {
@@ -156,8 +154,7 @@ class ViewController: UIViewController {
 		cardView.leftButtons = [btn1]
 		
 		// To support orientation changes, use Layout.
-		view.layout.alignFromTop(cardView, top: 100)
-		view.layout.horizontally(cardView, left: 20, right: 20)
+		view.layout(cardView).top(100).left(20).right(20)
 	}
 	
 	private func prepareCardViewButtonBarExample() {
@@ -194,8 +191,7 @@ class ViewController: UIViewController {
 		cardView.rightButtons = [btn2, btn3]
 		
 		// To support orientation changes, use Layout.
-		view.layout.alignFromTop(cardView, top: 100)
-		view.layout.horizontally(cardView, left: 20, right: 20)
+		view.layout(cardView).top(100).left(20).right(20)		
 	}
 }
 

Examples/Programmatic/ImageCardView/ImageCardView/ViewController.swift

@@ -83,8 +83,7 @@ class ViewController: UIViewController {
 		imageCardView.leftButtons = [btn1, btn2]
 		
 		// To support orientation changes, use Layout.
-		view.layout.alignFromTop(imageCardView, top: 100)
-		view.layout.horizontally(imageCardView, left: 20, right: 20)
+		view.layout(imageCardView).top(100).left(20).right(20)
 	}
 	
 	private func prepareImageCardViewWithoutDetailLabelAndDividerExample() {
@@ -132,8 +131,7 @@ class ViewController: UIViewController {
 		imageCardView.rightButtons = [btn1, btn2, btn3]
 		
 		// To support orientation changes, use Layout.
-		view.layout.alignFromTop(imageCardView, top: 100)
-		view.layout.horizontally(imageCardView, left: 20, right: 20)
+		view.layout(imageCardView).top(100).left(20).right(20)
 	}
 }
 

Examples/Programmatic/Layout/Layout/ViewController.swift

@@ -41,7 +41,7 @@ class ViewController: UIViewController {
 	override func viewDidLoad() {
 		super.viewDidLoad()
 		prepareView()
-//		prepareAlignToParentHorizontallyAndVerticallyExample()
+		prepareAlignToParentHorizontallyAndVerticallyExample()
 		prepareCenterExample()
 	}
 	
@@ -74,11 +74,9 @@ class ViewController: UIViewController {
 		
 		let children: Array<UIView> = [label1, label2, label3, label4]
 		
-		// Align the labels vertically with an equal height.
-		view.layout.vertically(children, top: 100, bottom: 100)
-		
-		// Align the labels horizontally with an equal width.
-		view.layout.horizontally(children, left: 30, right: 30, spacing: 30)
+		// Align the labels horizontally with an equal width and vertically with an equal height.
+        view.layout.horizontally(children, left: 30, right: 30, spacing: 30).vertically(children, top: 100, bottom: 100)
+        
 		
 		// Print out the dimensions of the labels.
 		for v in children {
@@ -98,8 +96,7 @@ class ViewController: UIViewController {
 		labelCX.layer.cornerRadius = length / 2.0
 		labelCX.clipsToBounds = true
 		
-		view.layout.size(labelCX, width: length, height: length)
-		view.layout.centerHorizontally(labelCX)
+		view.layout(labelCX).width(length).height(length).centerHorizontally()
 		
 		let labelCY = UILabel()
 		labelCY.backgroundColor = MaterialColor.grey.base
@@ -108,8 +105,7 @@ class ViewController: UIViewController {
 		labelCY.layer.cornerRadius = length / 2.0
 		labelCY.clipsToBounds = true
 		
-		view.layout.size(labelCY, width: length, height: length)
-		view.layout.centerVertically(labelCY)
+		view.layout(labelCY).width(length).height(length).centerVertically()
 		
 		let labelCXY = UILabel()
 		labelCXY.backgroundColor = MaterialColor.grey.base
@@ -118,8 +114,7 @@ class ViewController: UIViewController {
 		labelCXY.layer.cornerRadius = length / 2.0
 		labelCXY.clipsToBounds = true
 		
-		view.layout.size(labelCXY, width: length, height: length)
-		view.layout.center(labelCXY)
+        view.layout(labelCXY).width(length).height(length).center()		
 	}
 }
 

Examples/Programmatic/MaterialCollectionView/MaterialCollectionView/ViewController.swift

@@ -85,7 +85,7 @@ class ViewController: UIViewController {
 		collectionView.contentInset.top = 100
 		collectionView.spacing = 16
 		
-		view.layout.align(collectionView)
+		view.layout(collectionView).edges()
 	}
 }
 

Examples/Programmatic/MaterialDepth/MaterialDepth/ViewController.swift

@@ -70,7 +70,7 @@ class ViewController: UIViewController {
 		If this is left out, the intrinsic value is used for the view.
 		*/
 		for v in children {
-			view.layout.horizontally(v, left: 20, right: 20)
+			view.layout(v).horizontally(left: 20, right: 20)
 		}
 	}
 }

Examples/Programmatic/MaterialIcon/MaterialIcon/ViewController.swift

@@ -109,11 +109,11 @@ class ViewController: UIViewController {
 	
 	/// Prepares the tableView.
 	private func prepareTableView() {
-		tableView.registerClass(MaterialTableViewCell.self, forCellReuseIdentifier: "Cell")
+        view.layout(tableView).edges(top: 20)
+        tableView.registerClass(MaterialTableViewCell.self, forCellReuseIdentifier: "Cell")
 		tableView.dataSource = self
         tableView.delegate = self
         
-        view.layout.align(tableView, top: 20)
 	}
     
     private func image(iconName:String!) -> UIImage? {

Examples/Programmatic/MenuController/MenuController/AppMenuController.swift

@@ -105,7 +105,7 @@ class AppMenuController: MenuController {
 		view.backgroundColor = MaterialColor.black
 		prepareMenuView()
 	}
-	
+	
 	/// Prepares the add button.
 	private func prepareMenuView() {
 		var image: UIImage? = MaterialIcon.cm.add
@@ -148,8 +148,7 @@ class AppMenuController: MenuController {
 		menuView.menu.views = [menuButton, blueButton, greenButton, yellowButton]
 		menuView.delegate = self
 		
-		view.layout.size(menuView, width: baseSize.width, height: baseSize.height)
-		view.layout.alignFromBottomRight(menuView, bottom: menuViewInset, right: menuViewInset)
+		view.layout(menuView).width(baseSize.width).height(baseSize.height).bottom(menuViewInset).right(menuViewInset)		
 	}
 }
 

Examples/Programmatic/MenuView/MenuView/ViewController.swift

@@ -137,8 +137,7 @@ class ViewController: UIViewController {
 		menuView.menu.baseSize = CGSizeMake(diameter, diameter)
 		menuView.menu.views = [btn1, btn2, btn3, btn4]
 		
-		view.layout.size(menuView, width: diameter, height: diameter)
-		view.layout.alignFromBottomLeft(menuView, bottom: 16, left: (view.bounds.width - diameter) / 2)
+		view.layout(menuView).width(diameter).height(diameter).bottom(16).centerHorizontally()		
 	}
 }
 

Examples/Programmatic/SearchBar/SearchBar/ViewController.swift

@@ -59,7 +59,7 @@ class ViewController: UIViewController {
 	/// Prepares the containerView.
 	private func prepareContainerView() {
 		containerView = UIView()
-		view.layout.align(containerView, top: 100, left: 20, right: 20)
+		view.layout(containerView).edges(top: 100, left: 20, right: 20)
 	}
 	
 	/// Prepares the toolbar

Examples/Programmatic/SideNavigationController/SideNavigationController/AppLeftViewController.swift

@@ -74,8 +74,8 @@ class AppLeftViewController: UIViewController {
 		tableView.delegate = self
 		tableView.separatorStyle = .None
 		
-		// Use Layout to easily align the tableView.
-		view.layout.align.edges(tableView)
+		// Use Layout to easily align the tableView.        
+        view.layout(tableView).edges(top: 170)
 	}
 }
 

Examples/Programmatic/TableCardView/TableCardView/ViewController.swift

@@ -117,7 +117,7 @@ class ViewController: UIViewController {
 		cardView.leftButtons = [closeButton]
 		cardView.rightButtons = [settingButton]
 		
-		view.layout.align(cardView, left: 10, right: 10, top: 100, bottom: 100)
+		view.layout(cardView).edges(left: 10, right: 10, top: 100, bottom: 100)
 	}
 }
 

Examples/Programmatic/TextField/TextField/ViewController.swift

@@ -70,8 +70,7 @@ class ViewController: UIViewController, TextFieldDelegate {
 		btn.setTitleColor(MaterialColor.blue.base, forState: .Normal)
 		btn.setTitleColor(MaterialColor.blue.base, forState: .Highlighted)
 		
-		view.layout.size(btn, width: 100, height: 50)
-		view.layout.alignFromBottomRight(btn, bottom: 24, right: 24)
+		view.layout(btn).width(100).height(50).bottom(24).right(24)
 	}
 	
 	/// Handle the resign responder button.
@@ -93,8 +92,7 @@ class ViewController: UIViewController, TextFieldDelegate {
 		
 		// Size the TextField to the maximum width, less 40 pixels on either side
 		// with a top margin of 40 pixels.
-		view.layout.alignFromTop(nameField, top: 40)
-		view.layout.horizontally(nameField, left: 40, right: 40)
+		view.layout(nameField).top(40).horizontally(left: 40, right: 40)
 	}
 	
 	/// Prepares the email TextField.
@@ -125,8 +123,7 @@ class ViewController: UIViewController, TextFieldDelegate {
 		
 		// Size the TextField to the maximum width, less 40 pixels on either side
 		// with a top margin of 200 pixels.
-		view.layout.alignFromTop(passwordField, top: 200)
-		view.layout.horizontally(passwordField, left: 40, right: 40)
+		view.layout(passwordField).top(200).horizontally(left: 40, right: 40)		
 	}
 	
 	/// Executed when the 'return' key is pressed when using the emailField.

Examples/Programmatic/TextView/TextView/ViewController.swift

@@ -75,7 +75,7 @@ class ViewController: UIViewController, TextDelegate {
 		textView.titleLabelColor = MaterialColor.grey.base
 		textView.titleLabelActiveColor = MaterialColor.blue.accent3
 		
-		view.layout.align(textView!, top: 124, left: 24, bottom: 24, right: 24)
+		view.layout(textView!).edges(top: 124, left: 24, bottom: 24, right: 24)
 	}
 	
 	/**

Examples/Programmatic/Toolbar/Toolbar/ViewController.swift

@@ -59,7 +59,7 @@ class ViewController: UIViewController {
 	/// Prepares the containerView.
 	private func prepareContainerView() {
 		containerView = UIView()
-		view.layout.align.edges(containerView, top: 100, left: 20, right: 20)
+		view.layout(containerView).edges(top: 100, left: 20, right: 20)
 	}
 	
 	/// Prepares the toolbar

Examples/Storyboards/SideNavigationController/SideNavigationController/MainViewController.swift

@@ -43,8 +43,7 @@ class RootViewController: UIViewController {
 		fabButton.setImage(img, forState: .Highlighted)
 		fabButton.addTarget(self, action: #selector(handleFabButton), forControlEvents: .TouchUpInside)
 		
-		view.layout.size(fabButton, width: 64, height: 64)
-		view.layout.alignFromBottomRight(fabButton, bottom: 16, right: 16)
+		view.layout(fabButton).width(64).height(64).bottom(16).right(16)
     }
 	
 	// FabButton handler.

Sources/iOS/BottomTabBar.swift

@@ -233,8 +233,8 @@ public class BottomTabBar : UITabBar {
 		super.didMoveToSuperview()
 		if autoLayoutToSuperview {
 			if let v: UIView = superview {
-				v.layout.align.bottom(self)
-				v.layout.horizontally(self)
+				v.layout(self).bottom()
+				v.layout(self).horizontally()
 			}
 		}
 	}

Sources/iOS/CardView.swift

@@ -277,7 +277,7 @@ public class CardView : MaterialPulseView {
 			verticalFormat += "-[titleLabel]"
 			views["titleLabel"] = v
 			
-			layout.horizontally(v, left: contentInset.left + titleLabelInset.left, right: contentInset.right + titleLabelInset.right)
+			layout(v).horizontally(left: contentInset.left + titleLabelInset.left, right: contentInset.right + titleLabelInset.right)
 		}
 		
 		// detail
@@ -292,7 +292,7 @@ public class CardView : MaterialPulseView {
 			verticalFormat += "-[contentView]"
 			views["contentView"] = v
 			
-			layout.horizontally(v, left: contentInset.left + contentViewInset.left, right: contentInset.right + contentViewInset.right)
+			layout(v).horizontally(left: contentInset.left + contentViewInset.left, right: contentInset.right + contentViewInset.right)
 		}
 		
 		// leftButtons
@@ -314,7 +314,7 @@ public class CardView : MaterialPulseView {
 					
 					h += "[\(k)]"
 					
-					layout.align.bottom(b, bottom: contentInset.bottom + leftButtonsInset.bottom)
+					layout(b).bottom(contentInset.bottom + leftButtonsInset.bottom)
 					
 					i += 1
 				}
@@ -343,7 +343,7 @@ public class CardView : MaterialPulseView {
 						h += "-(right_left)-"
 					}
 					
-					layout.align.bottom(b, bottom: contentInset.bottom + rightButtonsInset.bottom)
+					layout(b).bottom(contentInset.bottom + rightButtonsInset.bottom)
 					
 					i -= 1
 				}

Sources/iOS/ImageCardView.swift

@@ -378,9 +378,9 @@ public class ImageCardView : MaterialPulseView {
 				verticalFormat += "-[titleLabel]"
 				views["titleLabel"] = v
 			} else {
-				layout.align.top(v, top: contentInset.top + titleLabelInset.top)
+				layout(v).top(contentInset.top + titleLabelInset.top)
 			}
-			layout.horizontally(v, left: contentInset.left + titleLabelInset.left, right: contentInset.right + titleLabelInset.right)
+			layout(v).horizontally(left: contentInset.left + titleLabelInset.left, right: contentInset.right + titleLabelInset.right)
 		}
 		
 		// detail
@@ -395,7 +395,7 @@ public class ImageCardView : MaterialPulseView {
 			verticalFormat += "-[contentView]"
 			views["contentView"] = v
 			
-			layout.horizontally(v, left: contentInset.left + contentViewInset.left, right: contentInset.right + contentViewInset.right)
+			layout(v).horizontally(left: contentInset.left + contentViewInset.left, right: contentInset.right + contentViewInset.right)
 		}
 		
 		// leftButtons
@@ -417,7 +417,7 @@ public class ImageCardView : MaterialPulseView {
 					
 					h += "[\(k)]"
 					
-					layout.align.bottom(b, bottom: contentInset.bottom + leftButtonsInset.bottom)
+					layout(b).bottom(contentInset.bottom + leftButtonsInset.bottom)
 					
 					i += 1
 				}
@@ -446,7 +446,7 @@ public class ImageCardView : MaterialPulseView {
 						h += "-(right_left)-"
 					}
 					
-					layout.align.bottom(b, bottom: contentInset.bottom + rightButtonsInset.bottom)
+					layout(b).bottom(contentInset.bottom + rightButtonsInset.bottom)
 					
 					i -= 1
 				}

Sources/iOS/Layout.swift

@@ -30,159 +30,456 @@
 
 import UIKit
 
-public class Align {
-	/// UIView context.
-	internal weak var context: UIView?
-	
-	init(context: UIView?) {
-		self.context = context
-	}
-	
-	/// Edges
-	public func edges(child: UIView, top: CGFloat = 0, left: CGFloat = 0, bottom: CGFloat = 0, right: CGFloat = 0) {
-		if let v: UIView = context {
-			Layout.alignToParent(v, child: child, top: top, left: left, bottom: bottom, right: right)
-		}
-	}
-	
-	/// TopLeft
-	public func topLeft(child: UIView, top: CGFloat = 0, left: CGFloat = 0) {
-		if let v: UIView = context {
-			Layout.alignFromTopLeft(v, child: child, top: top, left: left)
-		}
-	}
-	
-	/// TopRight
-	public func topRight(child: UIView, top: CGFloat = 0, right: CGFloat = 0) {
-		if let v: UIView = context {
-			Layout.alignFromTopRight(v, child: child, top: top, right: right)
-		}
-	}
-	
-	/// BottomLeft
-	public func bottomLeft(child: UIView, bottom: CGFloat = 0, left: CGFloat = 0) {
-		if let v: UIView = context {
-			Layout.alignFromBottomLeft(v, child: child, bottom: bottom, left: left)
-		}
-	}
-	
-	/// BottomRight
-	public func bottomRight(child: UIView, bottom: CGFloat = 0, right: CGFloat = 0) {
-		if let v: UIView = context {
-			Layout.alignFromBottomRight(v, child: child, bottom: bottom, right: right)
-		}
-	}
-	
-	/// Top
-	public func top(child: UIView, top: CGFloat = 0) {
-		if let v: UIView = context {
-			Layout.alignFromTop(v, child: child, top: top)
-		}
-	}
-	
-	/// Left
-	public func left(child: UIView, left: CGFloat = 0) {
-		if let v: UIView = context {
-			Layout.alignFromLeft(v, child: child, left: left)
-		}
-	}
-	
-	/// Bottom
-	public func bottom(child: UIView, bottom: CGFloat = 0) {
-		if let v: UIView = context {
-			Layout.alignFromBottom(v, child: child, bottom: bottom)
-		}
-	}
-	
-	/// Right
-	public func right(child: UIView, right: CGFloat = 0) {
-		if let v: UIView = context {
-			Layout.alignFromRight(v, child: child, right: right)
-		}
-	}
-}
-
 public class Layout {
 	/// Reference to Align.
-	public private(set) var align: Align
 	
 	/// UIView context.
 	internal weak var context: UIView?
+    
+    /// Child UIView context.
+    internal weak var childContext: UIView?
 	
 	init(context: UIView?) {
 		self.context = context
-		self.align = Align(context: context)
 	}
 
+    init(context: UIView?, childContext: UIView?) {
+        self.context = context
+        self.childContext = childContext
+    }
+
 	/// Width
-	public func width(child: UIView, width: CGFloat = 0) {
+    /// - returns: layout instance
+	public func width(child: UIView, width: CGFloat) -> Layout {
 		if let v: UIView = context {
 			Layout.width(v, child: child, width: width)
-		}
-	}
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+	}
+    
+    /// Width (Assuming a child context)
+    /// - returns: current layout instance
+    public func width(width: CGFloat) -> Layout {
+        if let c: UIView = childContext {
+            self.width(c, width: width)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
 	
 	/// Height
-	public func height(child: UIView, height: CGFloat = 0) {
+    /// - returns: current layout instance
+	public func height(child: UIView, height: CGFloat) -> Layout {
 		if let v: UIView = context {
 			Layout.height(v, child: child, height: height)
-		}
-	}
-	
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+	}
+	
+    /// Height (Assuming a child context)
+    /// - returns: current layout instance
+    public func height(height: CGFloat) -> Layout {
+        if let c: UIView = childContext {
+            self.height(c, height: height)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+    
 	/// Size
-	public func size(child: UIView, width: CGFloat = 0, height: CGFloat = 0) {
+    /// - returns: current layout instance
+	public func size(child: UIView, width: CGFloat, height: CGFloat) -> Layout {
 		if let v: UIView = context {
 			Layout.size(v, child: child, width: width, height: height)
-		}
-	}
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+	}
+    
+    /// Size (Assuming a child context)
+    /// - returns: current layout instance
+    public func size(width width: CGFloat, height: CGFloat) -> Layout {
+        if let c: UIView = childContext {
+            size(c, width: width, height: height)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
 	
 	/// Array of UIViews horizontally aligned.
-	public func horizontally(children: Array<UIView>, left: CGFloat = 0, right: CGFloat = 0, spacing: CGFloat = 0) {
+    /// - returns: current layout instance
+	public func horizontally(children: Array<UIView>, left: CGFloat = 0, right: CGFloat = 0, spacing: CGFloat = 0) -> Layout {
 		if let v: UIView = context {
 			Layout.alignToParentHorizontally(v, children: children, left: left, right: right, spacing: spacing)
-		}
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
 	}
 	
 	/// Array of UIViews vertically aligned.
-	public func vertically(children: Array<UIView>, top: CGFloat = 0, bottom: CGFloat = 0, spacing: CGFloat = 0) {
+    /// - returns: current layout instance
+	public func vertically(children: Array<UIView>, top: CGFloat = 0, bottom: CGFloat = 0, spacing: CGFloat = 0) -> Layout {
 		if let v: UIView = context {
 			Layout.alignToParentVertically(v, children: children, top: top, bottom: bottom, spacing: spacing)
-		}
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
 	}
 	
 	/// Horizontally aligned.
-	public func horizontally(child: UIView, left: CGFloat = 0, right: CGFloat = 0) {
+    /// - returns: current layout instance
+	public func horizontally(child: UIView, left: CGFloat = 0, right: CGFloat = 0) -> Layout {
 		if let v: UIView = context {
 			Layout.alignToParentHorizontally(v, child: child, left: left, right: right)
-		}
-	}
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+	}
+    
+    /// Horizontally aligned (Assuming a child context)
+    /// - returns: current layout instance
+    public func horizontally(left left: CGFloat = 0, right: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            horizontally(c, left: left, right: right)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
 	
 	/// Vertically aligned.
-	public func vertically(child: UIView, top: CGFloat = 0, bottom: CGFloat = 0) {
+    /// - returns: current layout instance
+	public func vertically(child: UIView, top: CGFloat = 0, bottom: CGFloat = 0) -> Layout {
 		if let v: UIView = context {
 			Layout.alignToParentVertically(v, child: child, top: top, bottom: bottom)
-		}
-	}
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+	}
+    
+    /// Vertically aligned (Assuming a child context)
+    /// - returns: current layout instance
+    public func vertically(top top: CGFloat = 0, bottom: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            vertically(c, top: top, bottom: bottom)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
 	
 	/// Center
-	public func center(child: UIView, constantX: CGFloat = 0, constantY: CGFloat = 0) {
+    /// - returns: current layout instance
+	public func center(child: UIView, constantX: CGFloat = 0, constantY: CGFloat = 0) -> Layout {
 		if let v: UIView = context {
 			Layout.center(v, child: child, constantX: constantX, constantY: constantY)
-		}
-	}
-	
-	/// CenterHorizontally
-	public func centerHorizontally(child: UIView, constant: CGFloat = 0) {
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+	}
+    
+    /// Center (Assuming a child context)
+    /// - returns: current layout instance
+    public func center(constantX constantX: CGFloat = 0, constantY: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            center(c, constantX: constantX, constantY: constantY)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+	
+	/// Center Horizontally
+    /// - returns: current layout instance
+	public func centerHorizontally(child: UIView, constant: CGFloat = 0) -> Layout {
 		if let v: UIView = context {
 			Layout.centerHorizontally(v, child: child, constant: constant)
-		}
-	}
-	
-	/// CenterVertically
-	public func centerVertically(child: UIView, constant: CGFloat = 0) {
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+	}
+    
+    /// Center Horizontally (Assuming a child context)
+    /// - returns: current layout instance
+    public func centerHorizontally(constant: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            centerHorizontally(c, constant: constant)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+	
+	/// Center Vertically
+    /// - returns: current layout instance
+	public func centerVertically(child: UIView, constant: CGFloat = 0) -> Layout {
 		if let v: UIView = context {
 			Layout.centerVertically(v, child: child, constant: constant)
-		}
-	}
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+	}
+    
+    /// Center Vertically (Assuming a child context)
+    /// - returns: current layout instance
+    public func centerVertically(constant: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            centerVertically(c, constant: constant)
+        }  else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align Edges
+    /// - returns: current layout instance
+    public func edges(child: UIView, top: CGFloat = 0, left: CGFloat = 0, bottom: CGFloat = 0, right: CGFloat = 0) -> Layout {
+        if let v: UIView = context {
+            Layout.alignToParent(v, child: child, top: top, left: left, bottom: bottom, right: right)
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align Edges (Assuming a child context)
+    /// - returns: current layout instance
+    public func edges(top top: CGFloat = 0, left: CGFloat = 0, bottom: CGFloat = 0, right: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            edges(c, top: top, left: left, bottom: bottom, right: right)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to TopLeft
+    /// - returns: current layout instance
+    public func topLeft(child: UIView, top: CGFloat = 0, left: CGFloat = 0) -> Layout {
+        if let v: UIView = context {
+            Layout.alignFromTopLeft(v, child: child, top: top, left: left)
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to TopLeft (Assuming a child context)
+    /// - returns: current layout instance
+    public func topLeft(top top: CGFloat = 0, left: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            topLeft(c, top: top, left: left)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to TopRight
+    /// - returns: current layout instance
+    public func topRight(child: UIView, top: CGFloat = 0, right: CGFloat = 0) -> Layout {
+        if let v: UIView = context {
+            Layout.alignFromTopRight(v, child: child, top: top, right: right)
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to TopRight (Assuming a child context)
+    /// - returns: current layout instance
+    public func topRight(top top: CGFloat = 0, right: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            topRight(c, top: top, right: right)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to BottomLeft
+    /// - returns: current layout instance
+    public func bottomLeft(child: UIView, bottom: CGFloat = 0, left: CGFloat = 0) -> Layout {
+        if let v: UIView = context {
+            Layout.alignFromBottomLeft(v, child: child, bottom: bottom, left: left)
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to BottomLeft (Assuming a child context)
+    /// - returns: current layout instance
+    public func bottomLeft(bottom bottom: CGFloat = 0, left: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            bottomLeft(c, bottom: bottom, left: left)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to BottomRight
+    /// - returns: current layout instance
+    public func bottomRight(child: UIView, bottom: CGFloat = 0, right: CGFloat = 0) -> Layout {
+        if let v: UIView = context {
+            Layout.alignFromBottomRight(v, child: child, bottom: bottom, right: right)
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to BottomRight (Assuming a child context)
+    /// - returns: current layout instance
+    public func bottomRight(bottom bottom: CGFloat = 0, right: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            bottomRight(c, bottom: bottom, right: right)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to Top
+    /// - returns: current layout instance
+    public func top(child: UIView, top: CGFloat = 0) -> Layout {
+        if let v: UIView = context {
+            Layout.alignFromTop(v, child: child, top: top)
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to Top (Assuming a child context)
+    /// - returns: current layout instance
+    public func top(top: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            self.top(c, top: top)
+        }  else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to Left
+    /// - returns: current layout instance
+    public func left(child: UIView, left: CGFloat = 0) -> Layout {
+        if let v: UIView = context {
+            Layout.alignFromLeft(v, child: child, left: left)
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to Left (Assuming a child context)
+    /// - returns: current layout instance
+    public func left(left: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            self.left(c, left: left)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to Bottom
+    /// - returns: current layout instance
+    public func bottom(child: UIView, bottom: CGFloat = 0) -> Layout {
+        if let v: UIView = context {
+            Layout.alignFromBottom(v, child: child, bottom: bottom)
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to Bottom (Assuming a child context)
+    /// - returns: current layout instance
+    public func bottom(bottom: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            self.bottom(c, bottom: bottom)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
+    
+    
+    /// Align to Right
+    /// - returns: current layout instance
+    public func right(child: UIView, right: CGFloat = 0) -> Layout {
+        if let v: UIView = context {
+            Layout.alignFromRight(v, child: child, right: right)
+        } else {
+            debugPrint("Parent context not available.")
+        }
+        
+        return self
+    }
+    
+    /// Align to Right (Assuming a child context)
+    /// - returns: current layout instance
+    public func right(right: CGFloat = 0) -> Layout {
+        if let c: UIView = childContext {
+            self.right(c, right: right)
+        } else {
+            debugPrint("Child view context not available.")
+        }
+        
+        return self
+    }
 }
 
 /// Layout
@@ -364,4 +661,10 @@ public extension UIView {
 			MaterialAssociateObject(self, key: &LayoutKey, value: value)
 		}
 	}
+    
+    /// Layout reference with a child context.
+    public func layout(child: UIView) -> Layout {
+        return Layout(context: self, childContext: child)
+    }
+    
 }

Sources/iOS/TextView.swift

@@ -401,7 +401,7 @@ public class TextView: UITextView {
 	internal func reloadView() {
 		if let p = placeholderLabel {
 			removeConstraints(constraints)
-			layout.align.edges(p,
+			layout(p).edges(
 				top: textContainerInset.top,
 				left: textContainerInset.left + textContainer.lineFragmentPadding,
 				bottom: textContainerInset.bottom,