diff --git a/CollectionViewClassifyMenu.xcodeproj/project.xcworkspace/xcuserdata/mac.xcuserdatad/UserInterfaceState.xcuserstate b/CollectionViewClassifyMenu.xcodeproj/project.xcworkspace/xcuserdata/mac.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..b2b13e0
Binary files /dev/null and b/CollectionViewClassifyMenu.xcodeproj/project.xcworkspace/xcuserdata/mac.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/CollectionViewClassifyMenu.xcodeproj/xcuserdata/mac.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/CollectionViewClassifyMenu.xcodeproj/xcuserdata/mac.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
new file mode 100644
index 0000000..8f94031
--- /dev/null
+++ b/CollectionViewClassifyMenu.xcodeproj/xcuserdata/mac.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.ExceptionBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "Yes"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            scope = "0"
+            stopOnStyle = "0">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
+</Bucket>
diff --git a/CollectionViewClassifyMenu.xcodeproj/xcuserdata/mac.xcuserdatad/xcschemes/CollectionViewClassifyMenu.xcscheme b/CollectionViewClassifyMenu.xcodeproj/xcuserdata/mac.xcuserdatad/xcschemes/CollectionViewClassifyMenu.xcscheme
new file mode 100644
index 0000000..f42d80d
--- /dev/null
+++ b/CollectionViewClassifyMenu.xcodeproj/xcuserdata/mac.xcuserdatad/xcschemes/CollectionViewClassifyMenu.xcscheme
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0720"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "9A3295EA1AB7D3880035EFAA"
+               BuildableName = "CollectionViewClassifyMenu.app"
+               BlueprintName = "CollectionViewClassifyMenu"
+               ReferencedContainer = "container:CollectionViewClassifyMenu.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "9A3296031AB7D3880035EFAA"
+               BuildableName = "CollectionViewClassifyMenuTests.xctest"
+               BlueprintName = "CollectionViewClassifyMenuTests"
+               ReferencedContainer = "container:CollectionViewClassifyMenu.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "9A3295EA1AB7D3880035EFAA"
+            BuildableName = "CollectionViewClassifyMenu.app"
+            BlueprintName = "CollectionViewClassifyMenu"
+            ReferencedContainer = "container:CollectionViewClassifyMenu.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "9A3295EA1AB7D3880035EFAA"
+            BuildableName = "CollectionViewClassifyMenu.app"
+            BlueprintName = "CollectionViewClassifyMenu"
+            ReferencedContainer = "container:CollectionViewClassifyMenu.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "9A3295EA1AB7D3880035EFAA"
+            BuildableName = "CollectionViewClassifyMenu.app"
+            BlueprintName = "CollectionViewClassifyMenu"
+            ReferencedContainer = "container:CollectionViewClassifyMenu.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/CollectionViewClassifyMenu.xcodeproj/xcuserdata/mac.xcuserdatad/xcschemes/xcschememanagement.plist b/CollectionViewClassifyMenu.xcodeproj/xcuserdata/mac.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..1524956
--- /dev/null
+++ b/CollectionViewClassifyMenu.xcodeproj/xcuserdata/mac.xcuserdatad/xcschemes/xcschememanagement.plist
@@ -0,0 +1,27 @@
+<?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>CollectionViewClassifyMenu.xcscheme</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+	<key>SuppressBuildableAutocreation</key>
+	<dict>
+		<key>9A3295EA1AB7D3880035EFAA</key>
+		<dict>
+			<key>primary</key>
+			<true/>
+		</dict>
+		<key>9A3296031AB7D3880035EFAA</key>
+		<dict>
+			<key>primary</key>
+			<true/>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/CollectionViewClassifyMenu/Class/Other/Lib/UICollectionViewLeftAlignedLayout/UICollectionViewLeftAlignedLayout.m b/CollectionViewClassifyMenu/Class/Other/Lib/UICollectionViewLeftAlignedLayout/UICollectionViewLeftAlignedLayout.m
index cae0b26..8a03e78 100644
--- a/CollectionViewClassifyMenu/Class/Other/Lib/UICollectionViewLeftAlignedLayout/UICollectionViewLeftAlignedLayout.m
+++ b/CollectionViewClassifyMenu/Class/Other/Lib/UICollectionViewLeftAlignedLayout/UICollectionViewLeftAlignedLayout.m
@@ -44,7 +44,9 @@ - (instancetype)init
 {
     self = [super init];
     if (self) {
+        if ([[UIDevice currentDevice].systemVersion doubleValue]>=9.0) {
             self.sectionHeadersPinToVisibleBounds = YES;
+        }
     }
     return self;
 }