diff --git a/SegmentedControl.xcodeproj/project.pbxproj b/SegmentedControl.xcodeproj/project.pbxproj
index 0e27468..5035b8a 100644
--- a/SegmentedControl.xcodeproj/project.pbxproj
+++ b/SegmentedControl.xcodeproj/project.pbxproj
@@ -109,12 +109,12 @@
 		D3E3B0C21C3282BB003EAA6E /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0800;
+				LastUpgradeCheck = 0900;
 				ORGANIZATIONNAME = Teambition;
 				TargetAttributes = {
 					D3E3B0CA1C3282BB003EAA6E = {
 						CreatedOnToolsVersion = 7.2;
-						LastSwiftMigration = 0800;
+						LastSwiftMigration = 0900;
 					};
 				};
 			};
@@ -169,14 +169,20 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -219,14 +225,20 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -271,7 +283,8 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -290,7 +303,8 @@
 				PRODUCT_BUNDLE_IDENTIFIER = Teambition.SegmentedControl;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
diff --git a/SegmentedControl.xcodeproj/xcshareddata/xcschemes/SegmentedControl.xcscheme b/SegmentedControl.xcodeproj/xcshareddata/xcschemes/SegmentedControl.xcscheme
index a0e0ee1..ab56cdc 100644
--- a/SegmentedControl.xcodeproj/xcshareddata/xcschemes/SegmentedControl.xcscheme
+++ b/SegmentedControl.xcodeproj/xcshareddata/xcschemes/SegmentedControl.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0800"
+   LastUpgradeVersion = "0900"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -26,6 +26,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
       </Testables>
@@ -36,6 +37,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"
diff --git a/SegmentedControl/SegmentedControl.swift b/SegmentedControl/SegmentedControl.swift
index 2d95280..8c57128 100644
--- a/SegmentedControl/SegmentedControl.swift
+++ b/SegmentedControl/SegmentedControl.swift
@@ -377,7 +377,7 @@ extension SegmentedControl: UIGestureRecognizerDelegate {
         return false
     }
 
-    func segmentedControlLongPressed(_ gesture: UIGestureRecognizer) {
+    @objc func segmentedControlLongPressed(_ gesture: UIGestureRecognizer) {
         switch gesture.state {
         case .possible:
             print("LongPressGesture Possible!")
diff --git a/SegmentedControl/Supporting Files/Info.plist b/SegmentedControl/Supporting Files/Info.plist
index 587b5df..bc568f7 100644
--- a/SegmentedControl/Supporting Files/Info.plist	
+++ b/SegmentedControl/Supporting Files/Info.plist	
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.0.7</string>
+	<string>0.0.8</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
diff --git a/SegmentedControlExample.xcodeproj/project.pbxproj b/SegmentedControlExample.xcodeproj/project.pbxproj
index d8ecede..e540b4a 100644
--- a/SegmentedControlExample.xcodeproj/project.pbxproj
+++ b/SegmentedControlExample.xcodeproj/project.pbxproj
@@ -108,12 +108,12 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0720;
-				LastUpgradeCheck = 0800;
+				LastUpgradeCheck = 0900;
 				ORGANIZATIONNAME = Teambition;
 				TargetAttributes = {
 					D3E3B0DE1C328316003EAA6E = {
 						CreatedOnToolsVersion = 7.2;
-						LastSwiftMigration = 0800;
+						LastSwiftMigration = 0900;
 					};
 				};
 			};
@@ -179,14 +179,20 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -226,14 +232,20 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -267,7 +279,8 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = Teambition.SegmentedControlExample;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -279,7 +292,8 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = Teambition.SegmentedControlExample;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
diff --git a/SegmentedControlExample.xcodeproj/xcuserdata/hongxin.xcuserdatad/xcschemes/SegmentedControlExample.xcscheme b/SegmentedControlExample.xcodeproj/xcuserdata/hongxin.xcuserdatad/xcschemes/SegmentedControlExample.xcscheme
index cf4d33f..e187895 100644
--- a/SegmentedControlExample.xcodeproj/xcuserdata/hongxin.xcuserdatad/xcschemes/SegmentedControlExample.xcscheme
+++ b/SegmentedControlExample.xcodeproj/xcuserdata/hongxin.xcuserdatad/xcschemes/SegmentedControlExample.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0800"
+   LastUpgradeVersion = "0900"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -26,6 +26,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
       </Testables>
@@ -45,6 +46,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"
diff --git a/SegmentedControlExample/ExampleViewController.swift b/SegmentedControlExample/ExampleViewController.swift
index 07475ff..9bff4b9 100644
--- a/SegmentedControlExample/ExampleViewController.swift
+++ b/SegmentedControlExample/ExampleViewController.swift
@@ -32,7 +32,7 @@ class ExampleViewController: UIViewController {
     fileprivate func configureNavigationTitleSegmentedControl() {
         let titleStrings = ["任务", "分享", "文件", "日程"]
         let titles: [NSAttributedString] = {
-            let attributes = [NSFontAttributeName: UIFont.systemFont(ofSize: 17), NSForegroundColorAttributeName: UIColor.darkGray]
+            let attributes: [NSAttributedStringKey: Any] = [.font: UIFont.systemFont(ofSize: 17), .foregroundColor: UIColor.darkGray]
             var titles = [NSAttributedString]()
             for titleString in titleStrings {
                 let title = NSAttributedString(string: titleString, attributes: attributes)
@@ -41,7 +41,7 @@ class ExampleViewController: UIViewController {
             return titles
         }()
         let selectedTitles: [NSAttributedString] = {
-            let attributes = [NSFontAttributeName: UIFont.systemFont(ofSize: 17), NSForegroundColorAttributeName: UIColor.white]
+            let attributes: [NSAttributedStringKey: Any] = [.font: UIFont.systemFont(ofSize: 17), .foregroundColor: UIColor.white]
             var selectedTitles = [NSAttributedString]()
             for titleString in titleStrings {
                 let selectedTitle = NSAttributedString(string: titleString, attributes: attributes)
@@ -66,7 +66,7 @@ class ExampleViewController: UIViewController {
     fileprivate func configureNavigationBelowSegmentedControl() {
         let titleStrings = ["任务", "分享", "文件", "日程", "账目", "标签", "通知", "聊天", "收件箱", "联系人"]
         let titles: [NSAttributedString] = {
-            let attributes = [NSFontAttributeName: UIFont.systemFont(ofSize: 16), NSForegroundColorAttributeName: UIColor.black]
+            let attributes: [NSAttributedStringKey: Any] = [.font: UIFont.systemFont(ofSize: 16), .foregroundColor: UIColor.black]
             var titles = [NSAttributedString]()
             for titleString in titleStrings {
                 let title = NSAttributedString(string: titleString, attributes: attributes)
@@ -75,7 +75,7 @@ class ExampleViewController: UIViewController {
             return titles
         }()
         let selectedTitles: [NSAttributedString] = {
-            let attributes = [NSFontAttributeName: UIFont.systemFont(ofSize: 16), NSForegroundColorAttributeName: kLivelyBlueColor]
+            let attributes: [NSAttributedStringKey: Any] = [.font: UIFont.systemFont(ofSize: 16), .foregroundColor: kLivelyBlueColor]
             var selectedTitles = [NSAttributedString]()
             for titleString in titleStrings {
                 let selectedTitle = NSAttributedString(string: titleString, attributes: attributes)
@@ -91,7 +91,7 @@ class ExampleViewController: UIViewController {
         segmentedControl.selectionIndicatorColor = kLivelyBlueColor
         segmentedControl.selectionIndicatorHeight = 3
         segmentedControl.segmentWidth = 65
-        segmentedControl.frame.origin.y = 64
+        segmentedControl.frame.origin.y = UIApplication.shared.statusBarFrame.height + 44
         segmentedControl.frame.size = CGSize(width: UIScreen.main.bounds.width, height: 40)
         view.insertSubview(segmentedControl, belowSubview: navigationController!.navigationBar)
     }
@@ -99,7 +99,7 @@ class ExampleViewController: UIViewController {
     fileprivate func configureSegmentedControl1() {
         let titleStrings = ["任务", "分享", "文件", "日程", "聊天"]
         let titles: [NSAttributedString] = {
-            let attributes = [NSFontAttributeName: UIFont.systemFont(ofSize: 17), NSForegroundColorAttributeName: UIColor.white]
+            let attributes: [NSAttributedStringKey: Any] = [.font: UIFont.systemFont(ofSize: 17), .foregroundColor: UIColor.white]
             var titles = [NSAttributedString]()
             for titleString in titleStrings {
                 let title = NSAttributedString(string: titleString, attributes: attributes)
@@ -108,7 +108,7 @@ class ExampleViewController: UIViewController {
             return titles
         }()
         let selectedTitles: [NSAttributedString] = {
-            let attributes = [NSFontAttributeName: UIFont.systemFont(ofSize: 17), NSForegroundColorAttributeName: UIColor(white: 0.1, alpha: 1)]
+            let attributes: [NSAttributedStringKey: Any] = [.font: UIFont.systemFont(ofSize: 17), .foregroundColor: UIColor(white: 0.1, alpha: 1)]
             var selectedTitles = [NSAttributedString]()
             for titleString in titleStrings {
                 let selectedTitle = NSAttributedString(string: titleString, attributes: attributes)
@@ -139,7 +139,7 @@ class ExampleViewController: UIViewController {
     fileprivate func configureSegmentedControl3() {
         let titleStrings = ["Tasks", "Posts", "Files", "Meetings", "Favourites", "Chats"]
         let titles: [NSAttributedString] = {
-            let attributes = [NSFontAttributeName: UIFont.systemFont(ofSize: 17), NSForegroundColorAttributeName: UIColor.darkGray]
+            let attributes: [NSAttributedStringKey: Any] = [.font: UIFont.systemFont(ofSize: 17), .foregroundColor: UIColor.darkGray]
             var titles = [NSAttributedString]()
             for titleString in titleStrings {
                 let title = NSAttributedString(string: titleString, attributes: attributes)
@@ -148,7 +148,7 @@ class ExampleViewController: UIViewController {
             return titles
         }()
         let selectedTitles: [NSAttributedString] = {
-            let attributes = [NSFontAttributeName: UIFont.systemFont(ofSize: 17), NSForegroundColorAttributeName: UIColor.white]
+            let attributes: [NSAttributedStringKey: Any] = [.font: UIFont.systemFont(ofSize: 17), .foregroundColor: UIColor.white]
             var selectedTitles = [NSAttributedString]()
             for titleString in titleStrings {
                 let selectedTitle = NSAttributedString(string: titleString, attributes: attributes)
diff --git a/SegmentedControlExample/Info.plist b/SegmentedControlExample/Info.plist
index a052c5a..44dfdc5 100644
--- a/SegmentedControlExample/Info.plist
+++ b/SegmentedControlExample/Info.plist
@@ -15,11 +15,11 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.0.7</string>
+	<string>0.0.8</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>7</string>
+	<string>8</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UILaunchStoryboardName</key>