updates

Example-iOS/ListViewController.swift

@@ -12,7 +12,7 @@ import SnapKit
 class ListViewController: UITableViewController {
 
     let kCellIdentifier = "CellIdentifier"
-    let demos = ["Basic UIScrollView"]
+    let demos = ["Simple Layout", "Basic UIScrollView"]
     
     override func viewDidLoad() {
         super.viewDidLoad()
@@ -36,6 +36,9 @@ class ListViewController: UITableViewController {
     
     override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
         if indexPath.row == 0 {
+            let viewController = SimpleLayoutViewController()
+            navigationController?.pushViewController(viewController, animated: true)
+        } else if indexPath.row == 1 {
             let viewController = BasicUIScrollViewController()
             navigationController?.pushViewController(viewController, animated: true)
         }

Example-iOS/demos/BasicUIScrollViewController.swift

@@ -32,7 +32,7 @@ class BasicUIScrollViewController: UIViewController {
         
         view.addSubview(scrollView)
         
-        contentView.backgroundColor = UIColor.redColor()
+        contentView.backgroundColor = UIColor.lightGrayColor()
         scrollView.addSubview(contentView)
         contentView.addSubview(label)
         
@@ -42,6 +42,7 @@ class BasicUIScrollViewController: UIViewController {
     override func updateViewConstraints() {
         
         if (!didSetupConstraints) {
+            
             scrollView.snp_makeConstraints { (make) -> Void in
                 make.edges.equalTo(view).inset(UIEdgeInsetsZero)
             }

Example-iOS/demos/SimpleLayoutViewController.swift

@@ -0,0 +1,46 @@
+//
+//  SimpleLayoutViewController.swift
+//  SnapKit
+//
+//  Created by Spiros Gerokostas on 01/03/16.
+//  Copyright © 2016 SnapKit Team. All rights reserved.
+//
+
+import UIKit
+
+class SimpleLayoutViewController: UIViewController {
+
+    var didSetupConstraints = false
+    
+    let blackView: UIView = {
+        let view = UIView()
+        view.backgroundColor = .blackColor()
+        return view
+    }()
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        view.backgroundColor = UIColor.whiteColor()
+        
+        view.addSubview(blackView)
+        
+        view.setNeedsUpdateConstraints()
+    }
+
+    override func updateViewConstraints() {
+        
+        if (!didSetupConstraints) {
+            
+            blackView.snp_makeConstraints(closure: { (make) -> Void in
+                make.center.equalTo(view)
+                make.size.equalTo(CGSizeMake(100.0, 100.0))
+            })
+            
+            didSetupConstraints = true
+        }
+        
+        super.updateViewConstraints()
+    }
+
+}

SnapKit.xcodeproj/project.pbxproj

@@ -30,6 +30,7 @@
 		56A0DC1D1C859E9A005973AB /* SnapKit.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = EEBCC9D819CC627D0083B827 /* SnapKit.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		56A0DC221C859F15005973AB /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56A0DC211C859F15005973AB /* AppDelegate.swift */; };
 		56A0DC321C85A2C1005973AB /* BasicUIScrollViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56A0DC311C85A2C1005973AB /* BasicUIScrollViewController.swift */; };
+		56A0DC341C85AFBF005973AB /* SimpleLayoutViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56A0DC331C85AFBF005973AB /* SimpleLayoutViewController.swift */; };
 		EE4910981B19A26000A54F1F /* ViewController+SnapKit.swift in Sources */ = {isa = PBXBuildFile; fileRef = EE4910971B19A26000A54F1F /* ViewController+SnapKit.swift */; };
 		EE4910991B19A40200A54F1F /* SnapKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = EEBCC9D819CC627D0083B827 /* SnapKit.framework */; };
 		EE94F6091AC0F10A008767FF /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = EE94F6081AC0F10A008767FF /* UIKit.framework */; };
@@ -105,6 +106,7 @@
 		56A0DC171C859E30005973AB /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		56A0DC211C859F15005973AB /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		56A0DC311C85A2C1005973AB /* BasicUIScrollViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BasicUIScrollViewController.swift; sourceTree = "<group>"; };
+		56A0DC331C85AFBF005973AB /* SimpleLayoutViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SimpleLayoutViewController.swift; sourceTree = "<group>"; };
 		EE4910971B19A26000A54F1F /* ViewController+SnapKit.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "ViewController+SnapKit.swift"; sourceTree = "<group>"; };
 		EE94F6081AC0F10A008767FF /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
 		EE94F60A1AC0F10F008767FF /* AppKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AppKit.framework; path = Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks/AppKit.framework; sourceTree = DEVELOPER_DIR; };
@@ -206,6 +208,7 @@
 			isa = PBXGroup;
 			children = (
 				56A0DC311C85A2C1005973AB /* BasicUIScrollViewController.swift */,
+				56A0DC331C85AFBF005973AB /* SimpleLayoutViewController.swift */,
 			);
 			path = demos;
 			sourceTree = "<group>";
@@ -582,6 +585,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				56A0DC341C85AFBF005973AB /* SimpleLayoutViewController.swift in Sources */,
 				56A0DC221C859F15005973AB /* AppDelegate.swift in Sources */,
 				56A0DC321C85A2C1005973AB /* BasicUIScrollViewController.swift in Sources */,
 				56A0DC0E1C859E30005973AB /* ListViewController.swift in Sources */,