diff --git a/RouletteViewDemo.xcodeproj/project.pbxproj b/RouletteViewDemo.xcodeproj/project.pbxproj
index 248da92..a2d8f22 100644
--- a/RouletteViewDemo.xcodeproj/project.pbxproj
+++ b/RouletteViewDemo.xcodeproj/project.pbxproj
@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		5BDE14772656580A0063D824 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 5BDE14762656580A0063D824 /* Assets.xcassets */; };
 		8EC103B516F270F700BAC998 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 8EC103B416F270F700BAC998 /* UIKit.framework */; };
 		8EC103B716F270F700BAC998 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 8EC103B616F270F700BAC998 /* Foundation.framework */; };
 		8EC103B916F270F700BAC998 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 8EC103B816F270F700BAC998 /* CoreGraphics.framework */; };
@@ -17,7 +18,6 @@
 		8EC103C916F270F700BAC998 /* Default@2x.png in Resources */ = {isa = PBXBuildFile; fileRef = 8EC103C816F270F700BAC998 /* Default@2x.png */; };
 		8EC103CB16F270F700BAC998 /* Default-568h@2x.png in Resources */ = {isa = PBXBuildFile; fileRef = 8EC103CA16F270F700BAC998 /* Default-568h@2x.png */; };
 		8EC103CE16F270F700BAC998 /* RVViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 8EC103CD16F270F700BAC998 /* RVViewController.m */; };
-		8EC103D116F270F700BAC998 /* RVViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = 8EC103CF16F270F700BAC998 /* RVViewController.xib */; };
 		8EC1045616F277DA00BAC998 /* RVCollectionViewCell.m in Sources */ = {isa = PBXBuildFile; fileRef = 8EC1045516F277DA00BAC998 /* RVCollectionViewCell.m */; };
 		8EC1045A16F27AE500BAC998 /* RVCollectionViewLayout.m in Sources */ = {isa = PBXBuildFile; fileRef = 8EC1045916F27AE500BAC998 /* RVCollectionViewLayout.m */; };
 		8EC1045D16F2953F00BAC998 /* QuartzCore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 8EC1045C16F2953F00BAC998 /* QuartzCore.framework */; };
@@ -37,6 +37,7 @@
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		5BDE14762656580A0063D824 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		8EC103B116F270F700BAC998 /* RouletteViewDemo.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = RouletteViewDemo.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		8EC103B416F270F700BAC998 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
 		8EC103B616F270F700BAC998 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
@@ -52,7 +53,6 @@
 		8EC103CA16F270F700BAC998 /* Default-568h@2x.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "Default-568h@2x.png"; sourceTree = "<group>"; };
 		8EC103CC16F270F700BAC998 /* RVViewController.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = RVViewController.h; sourceTree = "<group>"; };
 		8EC103CD16F270F700BAC998 /* RVViewController.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = RVViewController.m; sourceTree = "<group>"; };
-		8EC103D016F270F700BAC998 /* en */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = en; path = en.lproj/RVViewController.xib; sourceTree = "<group>"; };
 		8EC1045416F277DA00BAC998 /* RVCollectionViewCell.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RVCollectionViewCell.h; sourceTree = "<group>"; };
 		8EC1045516F277DA00BAC998 /* RVCollectionViewCell.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RVCollectionViewCell.m; sourceTree = "<group>"; };
 		8EC1045816F27AE500BAC998 /* RVCollectionViewLayout.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RVCollectionViewLayout.h; sourceTree = "<group>"; };
@@ -127,7 +127,7 @@
 				8EC1045516F277DA00BAC998 /* RVCollectionViewCell.m */,
 				8EC1045816F27AE500BAC998 /* RVCollectionViewLayout.h */,
 				8EC1045916F27AE500BAC998 /* RVCollectionViewLayout.m */,
-				8EC103CF16F270F700BAC998 /* RVViewController.xib */,
+				5BDE14762656580A0063D824 /* Assets.xcassets */,
 				8EC103BB16F270F700BAC998 /* Supporting Files */,
 			);
 			path = RouletteViewDemo;
@@ -203,6 +203,7 @@
 			developmentRegion = English;
 			hasScannedForEncodings = 0;
 			knownRegions = (
+				English,
 				en,
 			);
 			mainGroup = 8EC103A816F270F700BAC998;
@@ -223,8 +224,8 @@
 				8EC103BF16F270F700BAC998 /* InfoPlist.strings in Resources */,
 				8EC103C716F270F700BAC998 /* Default.png in Resources */,
 				8EC103C916F270F700BAC998 /* Default@2x.png in Resources */,
+				5BDE14772656580A0063D824 /* Assets.xcassets in Resources */,
 				8EC103CB16F270F700BAC998 /* Default-568h@2x.png in Resources */,
-				8EC103D116F270F700BAC998 /* RVViewController.xib in Resources */,
 				8ECAB21716F5512D002B90C2 /* 10.png in Resources */,
 				8ECAB21816F5512D002B90C2 /* 11.png in Resources */,
 				8ECAB21916F5512D002B90C2 /* 12.png in Resources */,
@@ -267,14 +268,6 @@
 			name = InfoPlist.strings;
 			sourceTree = "<group>";
 		};
-		8EC103CF16F270F700BAC998 /* RVViewController.xib */ = {
-			isa = PBXVariantGroup;
-			children = (
-				8EC103D016F270F700BAC998 /* en */,
-			);
-			name = RVViewController.xib;
-			sourceTree = "<group>";
-		};
 /* End PBXVariantGroup section */
 
 /* Begin XCBuildConfiguration section */
@@ -337,6 +330,7 @@
 		8EC103D516F270F700BAC998 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				DEVELOPMENT_TEAM = "";
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "RouletteViewDemo/RouletteViewDemo-Prefix.pch";
 				INFOPLIST_FILE = "RouletteViewDemo/RouletteViewDemo-Info.plist";
@@ -348,6 +342,7 @@
 		8EC103D616F270F700BAC998 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				DEVELOPMENT_TEAM = "";
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "RouletteViewDemo/RouletteViewDemo-Prefix.pch";
 				INFOPLIST_FILE = "RouletteViewDemo/RouletteViewDemo-Info.plist";
diff --git a/RouletteViewDemo.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/RouletteViewDemo.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/RouletteViewDemo.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/RouletteViewDemo.xcodeproj/project.xcworkspace/xcuserdata/yushuhui.xcuserdatad/UserInterfaceState.xcuserstate b/RouletteViewDemo.xcodeproj/project.xcworkspace/xcuserdata/yushuhui.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..3ad5c36
Binary files /dev/null and b/RouletteViewDemo.xcodeproj/project.xcworkspace/xcuserdata/yushuhui.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/RouletteViewDemo.xcodeproj/xcuserdata/yushuhui.xcuserdatad/xcschemes/xcschememanagement.plist b/RouletteViewDemo.xcodeproj/xcuserdata/yushuhui.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..8c622c2
--- /dev/null
+++ b/RouletteViewDemo.xcodeproj/xcuserdata/yushuhui.xcuserdatad/xcschemes/xcschememanagement.plist
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>RouletteViewDemo.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/RouletteViewDemo/Assets.xcassets/AppIcon.appiconset/Contents.json b/RouletteViewDemo/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..8121323
--- /dev/null
+++ b/RouletteViewDemo/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,53 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "scale" : "1x",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/RouletteViewDemo/RVAppDelegate.m b/RouletteViewDemo/RVAppDelegate.m
index 451945b..cc3973c 100644
--- a/RouletteViewDemo/RVAppDelegate.m
+++ b/RouletteViewDemo/RVAppDelegate.m
@@ -16,7 +16,7 @@ - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(
 {
     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
     // Override point for customization after application launch.
-    self.viewController = [[RVViewController alloc] initWithNibName:@"RVViewController" bundle:nil];
+    self.viewController = [[RVViewController alloc] init];
     self.window.rootViewController = self.viewController;
     [self.window makeKeyAndVisible];
     return YES;
diff --git a/RouletteViewDemo/RVViewController.m b/RouletteViewDemo/RVViewController.m
index 1554073..db2c94c 100644
--- a/RouletteViewDemo/RVViewController.m
+++ b/RouletteViewDemo/RVViewController.m
@@ -10,9 +10,11 @@
 #import "RVCollectionViewCell.h"
 #import "RVCollectionViewLayout.h"
 
+
+
 @interface RVViewController ()<UICollectionViewDataSource, UICollectionViewDelegateFlowLayout, UICollectionViewDelegate>
 
-@property (nonatomic, weak) IBOutlet UICollectionView * collectionView;
+@property (nonatomic, weak)  UICollectionView * collectionView;
 @property (nonatomic, strong) NSMutableArray * imagesArray;
 @property (nonatomic, strong) NSMutableArray * imageNamesArray;
 @property (nonatomic, strong) RVCollectionViewLayout * collectionViewLayout;
@@ -25,6 +27,7 @@ - (void)viewDidLoad
 {
     [super viewDidLoad];
     [self initImages];
+    [self initCollectionView];
     
     [self.collectionView registerClass:[RVCollectionViewCell class] forCellWithReuseIdentifier:@"ItemIdentifier"];
     self.collectionView.indicatorStyle = UIScrollViewIndicatorStyleWhite;
@@ -33,6 +36,20 @@ - (void)viewDidLoad
     self.collectionView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
 }
 
+- (void)initCollectionView {
+    CGRect rect=CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, 230);
+     _collectionViewLayout = [[RVCollectionViewLayout alloc] init];
+    
+    UICollectionView *collectionView=[[UICollectionView alloc] initWithFrame:rect collectionViewLayout:_collectionViewLayout];
+    collectionView.alwaysBounceHorizontal = YES;
+    collectionView.showsHorizontalScrollIndicator = NO;
+    collectionView.backgroundColor =[UIColor clearColor];
+    collectionView.dataSource=self;
+    collectionView.delegate=self;
+    [self.view addSubview:collectionView];
+    self.collectionView=collectionView;
+}
+
 #pragma mark - UICollectionViewDataSource
 
 - (NSInteger)numberOfSectionsInCollectionView:(UICollectionView*)collectionView {
diff --git a/RouletteViewDemo/en.lproj/RVViewController.xib b/RouletteViewDemo/en.lproj/RVViewController.xib
deleted file mode 100644
index ebc005a..0000000
--- a/RouletteViewDemo/en.lproj/RVViewController.xib
+++ /dev/null
@@ -1,239 +0,0 @@
-<?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">12D78</string>
-		<string key="IBDocument.InterfaceBuilderVersion">3084</string>
-		<string key="IBDocument.AppKitVersion">1187.37</string>
-		<string key="IBDocument.HIToolboxVersion">626.00</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>IBUICollectionView</string>
-			<string>IBUICollectionViewLayout</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="843779117">
-				<string key="IBProxiedObjectIdentifier">IBFirstResponder</string>
-				<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-			</object>
-			<object class="IBUIView" id="774585933">
-				<reference key="NSNextResponder"/>
-				<int key="NSvFlags">274</int>
-				<array class="NSMutableArray" key="NSSubviews">
-					<object class="IBUICollectionView" id="612461254">
-						<reference key="NSNextResponder" ref="774585933"/>
-						<int key="NSvFlags">1314</int>
-						<array class="NSMutableArray" key="NSSubviews"/>
-						<object class="NSPSMatrix" key="NSFrameMatrix"/>
-						<string key="NSFrame">{{-20, 40}, {360, 310}}</string>
-						<reference key="NSSuperview" ref="774585933"/>
-						<reference key="NSWindow"/>
-						<reference key="NSNextKeyView"/>
-						<string key="NSReuseIdentifierKey">_NS:9</string>
-						<bool key="IBUIOpaque">NO</bool>
-						<bool key="IBUIClipsSubviews">YES</bool>
-						<bool key="IBUIMultipleTouchEnabled">YES</bool>
-						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-						<bool key="IBUIDirectionalLockEnabled">YES</bool>
-						<bool key="IBUIShowsHorizontalScrollIndicator">NO</bool>
-						<float key="IBUIMinimumZoomScale">0.0</float>
-						<float key="IBUIMaximumZoomScale">0.0</float>
-						<object class="IBUICollectionViewLayout" key="IBUICollectionViewLayout" id="39600503">
-							<reference key="IBUICollectionView" ref="612461254"/>
-						</object>
-						<array key="IBUICells" id="0"/>
-					</object>
-				</array>
-				<string key="NSFrame">{{0, 20}, {320, 548}}</string>
-				<reference key="NSSuperview"/>
-				<reference key="NSWindow"/>
-				<reference key="NSNextKeyView" ref="612461254"/>
-				<object class="NSColor" key="IBUIBackgroundColor">
-					<int key="NSColorSpace">3</int>
-					<bytes key="NSWhite">MAA</bytes>
-				</object>
-				<bool key="IBUIClearsContextBeforeDrawing">NO</bool>
-				<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">collectionView</string>
-						<reference key="source" ref="372490531"/>
-						<reference key="destination" ref="612461254"/>
-					</object>
-					<int key="connectionID">15</int>
-				</object>
-				<object class="IBConnectionRecord">
-					<object class="IBCocoaTouchOutletConnection" key="connection">
-						<string key="label">view</string>
-						<reference key="source" ref="372490531"/>
-						<reference key="destination" ref="774585933"/>
-					</object>
-					<int key="connectionID">18</int>
-				</object>
-				<object class="IBConnectionRecord">
-					<object class="IBCocoaTouchOutletConnection" key="connection">
-						<string key="label">dataSource</string>
-						<reference key="source" ref="612461254"/>
-						<reference key="destination" ref="372490531"/>
-					</object>
-					<int key="connectionID">16</int>
-				</object>
-				<object class="IBConnectionRecord">
-					<object class="IBCocoaTouchOutletConnection" key="connection">
-						<string key="label">delegate</string>
-						<reference key="source" ref="612461254"/>
-						<reference key="destination" ref="372490531"/>
-					</object>
-					<int key="connectionID">17</int>
-				</object>
-			</array>
-			<object class="IBMutableOrderedSet" key="objectRecords">
-				<array key="orderedObjects">
-					<object class="IBObjectRecord">
-						<int key="objectID">0</int>
-						<reference key="object" ref="0"/>
-						<reference key="children" ref="1000"/>
-						<nil key="parent"/>
-					</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="843779117"/>
-						<reference key="parent" ref="0"/>
-					</object>
-					<object class="IBObjectRecord">
-						<int key="objectID">6</int>
-						<reference key="object" ref="774585933"/>
-						<array class="NSMutableArray" key="children">
-							<reference ref="612461254"/>
-						</array>
-						<reference key="parent" ref="0"/>
-					</object>
-					<object class="IBObjectRecord">
-						<int key="objectID">8</int>
-						<reference key="object" ref="612461254"/>
-						<array class="NSMutableArray" key="children">
-							<reference ref="39600503"/>
-						</array>
-						<reference key="parent" ref="774585933"/>
-					</object>
-					<object class="IBObjectRecord">
-						<int key="objectID">19</int>
-						<reference key="object" ref="39600503"/>
-						<reference key="parent" ref="612461254"/>
-					</object>
-				</array>
-			</object>
-			<dictionary class="NSMutableDictionary" key="flattenedProperties">
-				<string key="-1.CustomClassName">RVViewController</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="19.CustomClassName">RVCollectionViewLayout</string>
-				<string key="19.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-				<string key="6.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-				<string key="8.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">19</int>
-		</object>
-		<object class="IBClassDescriber" key="IBDocument.Classes">
-			<array class="NSMutableArray" key="referencedPartialClassDescriptions">
-				<object class="IBPartialClassDescription">
-					<string key="className">RVCollectionViewLayout</string>
-					<string key="superclassName">UICollectionViewFlowLayout</string>
-					<object class="IBClassDescriptionSource" key="sourceIdentifier">
-						<string key="majorKey">IBProjectSource</string>
-						<string key="minorKey">./Classes/RVCollectionViewLayout.h</string>
-					</object>
-				</object>
-				<object class="IBPartialClassDescription">
-					<string key="className">RVViewController</string>
-					<string key="superclassName">UIViewController</string>
-					<object class="NSMutableDictionary" key="outlets">
-						<string key="NS.key.0">collectionView</string>
-						<string key="NS.object.0">UICollectionView</string>
-					</object>
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