From 43c31162a5a8449fd344cc11be8812800eafb2c6 Mon Sep 17 00:00:00 2001
From: Jason Leyrer <jleyrer@gmail.com>
Date: Fri, 1 Nov 2013 16:57:15 -0500
Subject: [PATCH 1/2] Add background color transitions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

-Add a background image in the app delegate
-Add a transitions to move between blue and green background
images in each view controller’s viewDidAppear: method.
---
 ChangingBackground/AppDelegate.h          |  2 ++
 ChangingBackground/AppDelegate.m          | 14 ++++++++----
 ChangingBackground/FirstViewController.m  | 26 ++++++++++++++++++++++-
 ChangingBackground/SecondViewController.m | 21 ++++++++++++++++++
 4 files changed, 58 insertions(+), 5 deletions(-)

diff --git a/ChangingBackground/AppDelegate.h b/ChangingBackground/AppDelegate.h
index f96be1d..84a1eef 100644
--- a/ChangingBackground/AppDelegate.h
+++ b/ChangingBackground/AppDelegate.h
@@ -10,4 +10,6 @@
 
 @interface AppDelegate : UIResponder <UIApplicationDelegate>
 
+@property (nonatomic, strong) UIImageView *bgImageView;
+
 @end
diff --git a/ChangingBackground/AppDelegate.m b/ChangingBackground/AppDelegate.m
index 9538cc1..38ac609 100644
--- a/ChangingBackground/AppDelegate.m
+++ b/ChangingBackground/AppDelegate.m
@@ -14,17 +14,23 @@ @interface AppDelegate () {
 }
 @end
 
-
 @implementation AppDelegate
 
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
-    window = [UIWindow.alloc initWithFrame:UIScreen.mainScreen.bounds];
+    
+	window = [UIWindow.alloc initWithFrame:UIScreen.mainScreen.bounds];
     [window makeKeyAndVisible];
     
+	self.bgImageView = [[UIImageView alloc]
+						initWithImage:[UIImage imageNamed:@"blue.png"]];
+	
+	[window addSubview:self.bgImageView];
+	
     FirstViewController *firstViewController = FirstViewController.new;
-    UINavigationController *navigationController = [UINavigationController.alloc initWithRootViewController:firstViewController];
+    UINavigationController *navigationController =
+	[UINavigationController.alloc initWithRootViewController:firstViewController];
     [navigationController setNavigationBarHidden:YES];
-
+	
     window.rootViewController = navigationController;
     
     return YES;
diff --git a/ChangingBackground/FirstViewController.m b/ChangingBackground/FirstViewController.m
index 8aedb68..62f80af 100644
--- a/ChangingBackground/FirstViewController.m
+++ b/ChangingBackground/FirstViewController.m
@@ -8,6 +8,7 @@
 
 #import "FirstViewController.h"
 #import "SecondViewController.h"
+#import "AppDelegate.h"
 
 @interface FirstViewController ()
 
@@ -15,8 +16,31 @@ @interface FirstViewController ()
 
 @implementation FirstViewController
 
+- (void)viewDidLoad {
+	[super viewDidLoad];
+	self.view.backgroundColor = [UIColor clearColor];
+}
+
+- (void)viewDidAppear:(BOOL)animated {
+	AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication]
+											delegate];
+	
+	// If the background is green, transition to the blue image
+	if ([delegate.bgImageView.image isEqual:[UIImage imageNamed:@"green.png"]]) {
+		
+		[UIView transitionWithView:delegate.bgImageView
+						  duration:1.0f
+						   options:UIViewAnimationOptionTransitionCrossDissolve
+						animations:^{
+							delegate.bgImageView.image =
+							[UIImage imageNamed:@"blue.png"];
+						}
+						completion:NULL];
+	}
+}
+
 - (IBAction)goForwardButtonPressed {
-    SecondViewController *secondViewController = SecondViewController.new;
+	SecondViewController *secondViewController = SecondViewController.new;
     [self.navigationController pushViewController:secondViewController animated:YES];
 }
 
diff --git a/ChangingBackground/SecondViewController.m b/ChangingBackground/SecondViewController.m
index 028f811..7bd1f38 100644
--- a/ChangingBackground/SecondViewController.m
+++ b/ChangingBackground/SecondViewController.m
@@ -7,10 +7,31 @@
 //
 
 #import "SecondViewController.h"
+#import "AppDelegate.h"
 
 
 @implementation SecondViewController
 
+- (void)viewDidLoad {
+	[super viewDidLoad];
+	self.view.backgroundColor = [UIColor clearColor];
+}
+
+- (void)viewDidAppear:(BOOL)animated {
+	AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication]
+											delegate];
+	
+	// Transition to the green background
+	[UIView transitionWithView:delegate.bgImageView
+					  duration:1.0f
+					   options:UIViewAnimationOptionTransitionCrossDissolve
+					animations:^{
+						delegate.bgImageView.image =
+						[UIImage imageNamed:@"green.png"];
+					}
+					completion:NULL];
+}
+
 - (IBAction)goBackButtonPressed {
     [self.navigationController popViewControllerAnimated:YES];
 }

From 26f213daf3d0fa2dd956b2a889eb6f606507f516 Mon Sep 17 00:00:00 2001
From: Jason Leyrer <jleyrer@gmail.com>
Date: Fri, 1 Nov 2013 16:58:06 -0500
Subject: [PATCH 2/2] Make the xibs look like the demo.

---
 ChangingBackground/FirstViewController.xib  | 258 +++---------------
 ChangingBackground/SecondViewController.xib | 284 +++-----------------
 2 files changed, 82 insertions(+), 460 deletions(-)

diff --git a/ChangingBackground/FirstViewController.xib b/ChangingBackground/FirstViewController.xib
index 0dd58c2..d080ed5 100644
--- a/ChangingBackground/FirstViewController.xib
+++ b/ChangingBackground/FirstViewController.xib
@@ -1,217 +1,41 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<archive type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="8.00">
-	<data>
-		<int key="IBDocument.SystemTarget">1552</int>
-		<string key="IBDocument.SystemVersion">12C3006</string>
-		<string key="IBDocument.InterfaceBuilderVersion">3084</string>
-		<string key="IBDocument.AppKitVersion">1187.34</string>
-		<string key="IBDocument.HIToolboxVersion">625.00</string>
-		<object class="NSMutableDictionary" key="IBDocument.PluginVersions">
-			<string key="NS.key.0">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-			<string key="NS.object.0">2083</string>
-		</object>
-		<array key="IBDocument.IntegratedClassDependencies">
-			<string>IBProxyObject</string>
-			<string>IBUIButton</string>
-			<string>IBUILabel</string>
-			<string>IBUIView</string>
-		</array>
-		<array key="IBDocument.PluginDependencies">
-			<string>com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-		</array>
-		<object class="NSMutableDictionary" key="IBDocument.Metadata">
-			<string key="NS.key.0">PluginDependencyRecalculationVersion</string>
-			<integer value="1" key="NS.object.0"/>
-		</object>
-		<array class="NSMutableArray" key="IBDocument.RootObjects" id="1000">
-			<object class="IBProxyObject" id="372490531">
-				<string key="IBProxiedObjectIdentifier">IBFilesOwner</string>
-				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-			</object>
-			<object class="IBProxyObject" id="975951072">
-				<string key="IBProxiedObjectIdentifier">IBFirstResponder</string>
-				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-			</object>
-			<object class="IBUIView" id="191373211">
-				<nil key="NSNextResponder"/>
-				<int key="NSvFlags">274</int>
-				<array class="NSMutableArray" key="NSSubviews">
-					<object class="IBUILabel" id="706097280">
-						<reference key="NSNextResponder" ref="191373211"/>
-						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{77, 115}, {166, 21}}</string>
-						<reference key="NSSuperview" ref="191373211"/>
-						<reference key="NSNextKeyView" ref="545115536"/>
-						<string key="NSReuseIdentifierKey">_NS:9</string>
-						<bool key="IBUIOpaque">NO</bool>
-						<bool key="IBUIClipsSubviews">YES</bool>
-						<int key="IBUIContentMode">7</int>
-						<bool key="IBUIUserInteractionEnabled">NO</bool>
-						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-						<string key="IBUIText">Home View Controller</string>
-						<object class="NSColor" key="IBUITextColor">
-							<int key="NSColorSpace">1</int>
-							<bytes key="NSRGB">MCAwIDAAA</bytes>
-							<string key="IBUIColorCocoaTouchKeyPath">darkTextColor</string>
-						</object>
-						<nil key="IBUIHighlightedColor"/>
-						<int key="IBUIBaselineAdjustment">0</int>
-						<object class="IBUIFontDescription" key="IBUIFontDescription">
-							<int key="type">1</int>
-							<double key="pointSize">17</double>
-						</object>
-						<object class="NSFont" key="IBUIFont">
-							<string key="NSName">Helvetica</string>
-							<double key="NSSize">17</double>
-							<int key="NSfFlags">16</int>
-						</object>
-						<bool key="IBUIAdjustsFontSizeToFit">NO</bool>
-					</object>
-					<object class="IBUIButton" id="545115536">
-						<reference key="NSNextResponder" ref="191373211"/>
-						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{102, 180}, {109, 44}}</string>
-						<reference key="NSSuperview" ref="191373211"/>
-						<string key="NSReuseIdentifierKey">_NS:9</string>
-						<bool key="IBUIOpaque">NO</bool>
-						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-						<int key="IBUIContentHorizontalAlignment">0</int>
-						<int key="IBUIContentVerticalAlignment">0</int>
-						<int key="IBUIButtonType">1</int>
-						<string key="IBUINormalTitle">Go Forward</string>
-						<object class="NSColor" key="IBUIHighlightedTitleColor">
-							<int key="NSColorSpace">3</int>
-							<bytes key="NSWhite">MQA</bytes>
-						</object>
-						<object class="NSColor" key="IBUINormalTitleColor">
-							<int key="NSColorSpace">1</int>
-							<bytes key="NSRGB">MC4xOTYwNzg0MzQ2IDAuMzA5ODAzOTMyOSAwLjUyMTU2ODY1NgA</bytes>
-						</object>
-						<object class="NSColor" key="IBUINormalTitleShadowColor">
-							<int key="NSColorSpace">3</int>
-							<bytes key="NSWhite">MC41AA</bytes>
-						</object>
-						<object class="IBUIFontDescription" key="IBUIFontDescription">
-							<int key="type">2</int>
-							<double key="pointSize">15</double>
-						</object>
-						<object class="NSFont" key="IBUIFont">
-							<string key="NSName">Helvetica-Bold</string>
-							<double key="NSSize">15</double>
-							<int key="NSfFlags">16</int>
-						</object>
-					</object>
-				</array>
-				<string key="NSFrame">{{0, 20}, {320, 548}}</string>
-				<reference key="NSNextKeyView" ref="706097280"/>
-				<object class="NSColor" key="IBUIBackgroundColor">
-					<int key="NSColorSpace">3</int>
-					<bytes key="NSWhite">MQA</bytes>
-					<object class="NSColorSpace" key="NSCustomColorSpace">
-						<int key="NSID">2</int>
-					</object>
-				</object>
-				<object class="IBUISimulatedStatusBarMetrics" key="IBUISimulatedStatusBarMetrics"/>
-				<object class="IBUIScreenMetrics" key="IBUISimulatedDestinationMetrics">
-					<string key="IBUISimulatedSizeMetricsClass">IBUIScreenMetrics</string>
-					<object class="NSMutableDictionary" key="IBUINormalizedOrientationToSizeMap">
-						<bool key="EncodedWithXMLCoder">YES</bool>
-						<array key="dict.sortedKeys">
-							<integer value="1"/>
-							<integer value="3"/>
-						</array>
-						<array key="dict.values">
-							<string>{320, 568}</string>
-							<string>{568, 320}</string>
-						</array>
-					</object>
-					<string key="IBUITargetRuntime">IBCocoaTouchFramework</string>
-					<string key="IBUIDisplayName">Retina 4 Full Screen</string>
-					<int key="IBUIType">2</int>
-				</object>
-				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-			</object>
-		</array>
-		<object class="IBObjectContainer" key="IBDocument.Objects">
-			<array class="NSMutableArray" key="connectionRecords">
-				<object class="IBConnectionRecord">
-					<object class="IBCocoaTouchOutletConnection" key="connection">
-						<string key="label">view</string>
-						<reference key="source" ref="372490531"/>
-						<reference key="destination" ref="191373211"/>
-					</object>
-					<int key="connectionID">3</int>
-				</object>
-				<object class="IBConnectionRecord">
-					<object class="IBCocoaTouchEventConnection" key="connection">
-						<string key="label">goForwardButtonPressed</string>
-						<reference key="source" ref="545115536"/>
-						<reference key="destination" ref="372490531"/>
-						<int key="IBEventType">7</int>
-					</object>
-					<int key="connectionID">8</int>
-				</object>
-			</array>
-			<object class="IBMutableOrderedSet" key="objectRecords">
-				<array key="orderedObjects">
-					<object class="IBObjectRecord">
-						<int key="objectID">0</int>
-						<array key="object" id="0"/>
-						<reference key="children" ref="1000"/>
-						<nil key="parent"/>
-					</object>
-					<object class="IBObjectRecord">
-						<int key="objectID">1</int>
-						<reference key="object" ref="191373211"/>
-						<array class="NSMutableArray" key="children">
-							<reference ref="706097280"/>
-							<reference ref="545115536"/>
-						</array>
-						<reference key="parent" ref="0"/>
-					</object>
-					<object class="IBObjectRecord">
-						<int key="objectID">-1</int>
-						<reference key="object" ref="372490531"/>
-						<reference key="parent" ref="0"/>
-						<string key="objectName">File's Owner</string>
-					</object>
-					<object class="IBObjectRecord">
-						<int key="objectID">-2</int>
-						<reference key="object" ref="975951072"/>
-						<reference key="parent" ref="0"/>
-					</object>
-					<object class="IBObjectRecord">
-						<int key="objectID">4</int>
-						<reference key="object" ref="706097280"/>
-						<reference key="parent" ref="191373211"/>
-					</object>
-					<object class="IBObjectRecord">
-						<int key="objectID">7</int>
-						<reference key="object" ref="545115536"/>
-						<reference key="parent" ref="191373211"/>
-					</object>
-				</array>
-			</object>
-			<dictionary class="NSMutableDictionary" key="flattenedProperties">
-				<string key="-1.CustomClassName">FirstViewController</string>
-				<string key="-1.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-				<string key="-2.CustomClassName">UIResponder</string>
-				<string key="-2.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-				<string key="1.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-				<string key="4.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-				<string key="7.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-			</dictionary>
-			<dictionary class="NSMutableDictionary" key="unlocalizedProperties"/>
-			<nil key="activeLocalization"/>
-			<dictionary class="NSMutableDictionary" key="localizations"/>
-			<nil key="sourceID"/>
-			<int key="maxID">8</int>
-		</object>
-		<object class="IBClassDescriber" key="IBDocument.Classes"/>
-		<int key="IBDocument.localizationMode">0</int>
-		<string key="IBDocument.TargetRuntimeIdentifier">IBCocoaTouchFramework</string>
-		<bool key="IBDocument.PluginDeclaredDependenciesTrackSystemTargetVersion">YES</bool>
-		<int key="IBDocument.defaultPropertyAccessControl">3</int>
-		<string key="IBCocoaTouchPluginVersion">2083</string>
-	</data>
-</archive>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="4514" systemVersion="13A603" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none">
+    <dependencies>
+        <deployment defaultVersion="1552" identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="3746"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="FirstViewController">
+            <connections>
+                <outlet property="view" destination="1" id="3"/>
+            </connections>
+        </placeholder>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <view contentMode="scaleToFill" id="1">
+            <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+            <subviews>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" text="Home View Controller" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="4">
+                    <rect key="frame" x="73" y="117" width="174" height="21"/>
+                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                    <color key="textColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                    <nil key="highlightedColor"/>
+                </label>
+                <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" id="7">
+                    <rect key="frame" x="102" y="180" width="109" height="44"/>
+                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                    <state key="normal" title="Go Forward">
+                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
+                    </state>
+                    <connections>
+                        <action selector="goForwardButtonPressed" destination="-1" eventType="touchUpInside" id="8"/>
+                    </connections>
+                </button>
+            </subviews>
+            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+            <simulatedStatusBarMetrics key="simulatedStatusBarMetrics"/>
+            <simulatedScreenMetrics key="simulatedDestinationMetrics" type="retina4"/>
+        </view>
+    </objects>
+</document>
\ No newline at end of file
diff --git a/ChangingBackground/SecondViewController.xib b/ChangingBackground/SecondViewController.xib
index d603949..c83d08f 100644
--- a/ChangingBackground/SecondViewController.xib
+++ b/ChangingBackground/SecondViewController.xib
@@ -1,243 +1,41 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<archive type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="8.00">
-	<data>
-		<int key="IBDocument.SystemTarget">1552</int>
-		<string key="IBDocument.SystemVersion">12C3006</string>
-		<string key="IBDocument.InterfaceBuilderVersion">3084</string>
-		<string key="IBDocument.AppKitVersion">1187.34</string>
-		<string key="IBDocument.HIToolboxVersion">625.00</string>
-		<object class="NSMutableDictionary" key="IBDocument.PluginVersions">
-			<string key="NS.key.0">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-			<string key="NS.object.0">2083</string>
-		</object>
-		<array key="IBDocument.IntegratedClassDependencies">
-			<string>IBProxyObject</string>
-			<string>IBUIButton</string>
-			<string>IBUILabel</string>
-			<string>IBUIView</string>
-		</array>
-		<array key="IBDocument.PluginDependencies">
-			<string>com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-		</array>
-		<object class="NSMutableDictionary" key="IBDocument.Metadata">
-			<string key="NS.key.0">PluginDependencyRecalculationVersion</string>
-			<integer value="1" key="NS.object.0"/>
-		</object>
-		<array class="NSMutableArray" key="IBDocument.RootObjects" id="1000">
-			<object class="IBProxyObject" id="372490531">
-				<string key="IBProxiedObjectIdentifier">IBFilesOwner</string>
-				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-			</object>
-			<object class="IBProxyObject" id="975951072">
-				<string key="IBProxiedObjectIdentifier">IBFirstResponder</string>
-				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-			</object>
-			<object class="IBUIView" id="191373211">
-				<reference key="NSNextResponder"/>
-				<int key="NSvFlags">274</int>
-				<array class="NSMutableArray" key="NSSubviews">
-					<object class="IBUILabel" id="608025062">
-						<reference key="NSNextResponder" ref="191373211"/>
-						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{71, 118}, {209, 21}}</string>
-						<reference key="NSSuperview" ref="191373211"/>
-						<reference key="NSWindow"/>
-						<reference key="NSNextKeyView" ref="296395786"/>
-						<string key="NSReuseIdentifierKey">_NS:9</string>
-						<bool key="IBUIOpaque">NO</bool>
-						<bool key="IBUIClipsSubviews">YES</bool>
-						<int key="IBUIContentMode">7</int>
-						<bool key="IBUIUserInteractionEnabled">NO</bool>
-						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-						<string key="IBUIText">Second View Controller</string>
-						<object class="NSColor" key="IBUITextColor">
-							<int key="NSColorSpace">1</int>
-							<bytes key="NSRGB">MCAwIDAAA</bytes>
-							<string key="IBUIColorCocoaTouchKeyPath">darkTextColor</string>
-						</object>
-						<nil key="IBUIHighlightedColor"/>
-						<int key="IBUIBaselineAdjustment">0</int>
-						<object class="IBUIFontDescription" key="IBUIFontDescription">
-							<int key="type">1</int>
-							<double key="pointSize">17</double>
-						</object>
-						<object class="NSFont" key="IBUIFont">
-							<string key="NSName">Helvetica</string>
-							<double key="NSSize">17</double>
-							<int key="NSfFlags">16</int>
-						</object>
-						<bool key="IBUIAdjustsFontSizeToFit">NO</bool>
-					</object>
-					<object class="IBUIButton" id="296395786">
-						<reference key="NSNextResponder" ref="191373211"/>
-						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{118, 178}, {85, 44}}</string>
-						<reference key="NSSuperview" ref="191373211"/>
-						<reference key="NSWindow"/>
-						<string key="NSReuseIdentifierKey">_NS:9</string>
-						<bool key="IBUIOpaque">NO</bool>
-						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-						<int key="IBUIContentHorizontalAlignment">0</int>
-						<int key="IBUIContentVerticalAlignment">0</int>
-						<int key="IBUIButtonType">1</int>
-						<string key="IBUINormalTitle">Go Back</string>
-						<object class="NSColor" key="IBUIHighlightedTitleColor">
-							<int key="NSColorSpace">3</int>
-							<bytes key="NSWhite">MQA</bytes>
-						</object>
-						<object class="NSColor" key="IBUINormalTitleColor">
-							<int key="NSColorSpace">1</int>
-							<bytes key="NSRGB">MC4xOTYwNzg0MzQ2IDAuMzA5ODAzOTMyOSAwLjUyMTU2ODY1NgA</bytes>
-						</object>
-						<object class="NSColor" key="IBUINormalTitleShadowColor">
-							<int key="NSColorSpace">3</int>
-							<bytes key="NSWhite">MC41AA</bytes>
-						</object>
-						<object class="IBUIFontDescription" key="IBUIFontDescription">
-							<int key="type">2</int>
-							<double key="pointSize">15</double>
-						</object>
-						<object class="NSFont" key="IBUIFont">
-							<string key="NSName">Helvetica-Bold</string>
-							<double key="NSSize">15</double>
-							<int key="NSfFlags">16</int>
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-				<reference key="NSSuperview"/>
-				<reference key="NSWindow"/>
-				<reference key="NSNextKeyView" ref="608025062"/>
-				<object class="NSColor" key="IBUIBackgroundColor">
-					<int key="NSColorSpace">3</int>
-					<bytes key="NSWhite">MQA</bytes>
-					<object class="NSColorSpace" key="NSCustomColorSpace">
-						<int key="NSID">2</int>
-					</object>
-				</object>
-				<object class="IBUISimulatedStatusBarMetrics" key="IBUISimulatedStatusBarMetrics"/>
-				<object class="IBUIScreenMetrics" key="IBUISimulatedDestinationMetrics">
-					<string key="IBUISimulatedSizeMetricsClass">IBUIScreenMetrics</string>
-					<object class="NSMutableDictionary" key="IBUINormalizedOrientationToSizeMap">
-						<bool key="EncodedWithXMLCoder">YES</bool>
-						<array key="dict.sortedKeys">
-							<integer value="1"/>
-							<integer value="3"/>
-						</array>
-						<array key="dict.values">
-							<string>{320, 568}</string>
-							<string>{568, 320}</string>
-						</array>
-					</object>
-					<string key="IBUITargetRuntime">IBCocoaTouchFramework</string>
-					<string key="IBUIDisplayName">Retina 4 Full Screen</string>
-					<int key="IBUIType">2</int>
-				</object>
-				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-			</object>
-		</array>
-		<object class="IBObjectContainer" key="IBDocument.Objects">
-			<array class="NSMutableArray" key="connectionRecords">
-				<object class="IBConnectionRecord">
-					<object class="IBCocoaTouchOutletConnection" key="connection">
-						<string key="label">view</string>
-						<reference key="source" ref="372490531"/>
-						<reference key="destination" ref="191373211"/>
-					</object>
-					<int key="connectionID">3</int>
-				</object>
-				<object class="IBConnectionRecord">
-					<object class="IBCocoaTouchEventConnection" key="connection">
-						<string key="label">goBackButtonPressed</string>
-						<reference key="source" ref="296395786"/>
-						<reference key="destination" ref="372490531"/>
-						<int key="IBEventType">7</int>
-					</object>
-					<int key="connectionID">10</int>
-				</object>
-			</array>
-			<object class="IBMutableOrderedSet" key="objectRecords">
-				<array key="orderedObjects">
-					<object class="IBObjectRecord">
-						<int key="objectID">0</int>
-						<array key="object" id="0"/>
-						<reference key="children" ref="1000"/>
-						<nil key="parent"/>
-					</object>
-					<object class="IBObjectRecord">
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-						<reference key="object" ref="191373211"/>
-						<array class="NSMutableArray" key="children">
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-						<reference key="parent" ref="0"/>
-					</object>
-					<object class="IBObjectRecord">
-						<int key="objectID">-1</int>
-						<reference key="object" ref="372490531"/>
-						<reference key="parent" ref="0"/>
-						<string key="objectName">File's Owner</string>
-					</object>
-					<object class="IBObjectRecord">
-						<int key="objectID">-2</int>
-						<reference key="object" ref="975951072"/>
-						<reference key="parent" ref="0"/>
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-					<object class="IBObjectRecord">
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-						<reference key="object" ref="296395786"/>
-						<reference key="parent" ref="191373211"/>
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-					<object class="IBObjectRecord">
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-						<reference key="object" ref="608025062"/>
-						<reference key="parent" ref="191373211"/>
-					</object>
-				</array>
-			</object>
-			<dictionary class="NSMutableDictionary" key="flattenedProperties">
-				<string key="-1.CustomClassName">SecondViewController</string>
-				<string key="-1.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-				<string key="-2.CustomClassName">UIResponder</string>
-				<string key="-2.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-				<string key="1.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-				<string key="4.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-				<string key="7.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-			</dictionary>
-			<dictionary class="NSMutableDictionary" key="unlocalizedProperties"/>
-			<nil key="activeLocalization"/>
-			<dictionary class="NSMutableDictionary" key="localizations"/>
-			<nil key="sourceID"/>
-			<int key="maxID">10</int>
-		</object>
-		<object class="IBClassDescriber" key="IBDocument.Classes">
-			<array class="NSMutableArray" key="referencedPartialClassDescriptions">
-				<object class="IBPartialClassDescription">
-					<string key="className">SecondViewController</string>
-					<string key="superclassName">UIViewController</string>
-					<object class="NSMutableDictionary" key="actions">
-						<string key="NS.key.0">goBackButtonPressed</string>
-						<string key="NS.object.0">id</string>
-					</object>
-					<object class="NSMutableDictionary" key="actionInfosByName">
-						<string key="NS.key.0">goBackButtonPressed</string>
-						<object class="IBActionInfo" key="NS.object.0">
-							<string key="name">goBackButtonPressed</string>
-							<string key="candidateClassName">id</string>
-						</object>
-					</object>
-					<object class="IBClassDescriptionSource" key="sourceIdentifier">
-						<string key="majorKey">IBProjectSource</string>
-						<string key="minorKey">./Classes/SecondViewController.h</string>
-					</object>
-				</object>
-			</array>
-		</object>
-		<int key="IBDocument.localizationMode">0</int>
-		<string key="IBDocument.TargetRuntimeIdentifier">IBCocoaTouchFramework</string>
-		<bool key="IBDocument.PluginDeclaredDependenciesTrackSystemTargetVersion">YES</bool>
-		<int key="IBDocument.defaultPropertyAccessControl">3</int>
-		<string key="IBCocoaTouchPluginVersion">2083</string>
-	</data>
-</archive>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="4514" systemVersion="13A603" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none">
+    <dependencies>
+        <deployment defaultVersion="1552" identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="3746"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="SecondViewController">
+            <connections>
+                <outlet property="view" destination="1" id="3"/>
+            </connections>
+        </placeholder>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <view contentMode="scaleToFill" id="1">
+            <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+            <subviews>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" text="Second View Controller" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="7">
+                    <rect key="frame" x="67" y="118" width="186" height="21"/>
+                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                    <color key="textColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                    <nil key="highlightedColor"/>
+                </label>
+                <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" id="4">
+                    <rect key="frame" x="118" y="178" width="85" height="44"/>
+                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                    <state key="normal" title="Go Back">
+                        <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
+                    </state>
+                    <connections>
+                        <action selector="goBackButtonPressed" destination="-1" eventType="touchUpInside" id="10"/>
+                    </connections>
+                </button>
+            </subviews>
+            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+            <simulatedStatusBarMetrics key="simulatedStatusBarMetrics"/>
+            <simulatedScreenMetrics key="simulatedDestinationMetrics" type="retina4"/>
+        </view>
+    </objects>
+</document>
\ No newline at end of file