diff --git a/Example/Podfile.lock b/Example/Podfile.lock
index 43f429b..3a79587 100644
--- a/Example/Podfile.lock
+++ b/Example/Podfile.lock
@@ -1,5 +1,5 @@
 PODS:
-  - TTGTagCollectionView (0.5.0)
+  - TTGTagCollectionView (1.0.0)
 
 DEPENDENCIES:
   - TTGTagCollectionView (from `../`)
@@ -9,8 +9,8 @@ EXTERNAL SOURCES:
     :path: "../"
 
 SPEC CHECKSUMS:
-  TTGTagCollectionView: 94c43e13df2e39bdd8f37bd038438f183add84a4
+  TTGTagCollectionView: 7ed196f959f797c23e5dfc3754989718172d1cf1
 
 PODFILE CHECKSUM: f0fc553868b0459c5bd7ac738bceafe55aa8f98d
 
-COCOAPODS: 1.0.1
+COCOAPODS: 1.1.0.rc.2
diff --git a/Example/Pods/Local Podspecs/TTGTagCollectionView.podspec.json b/Example/Pods/Local Podspecs/TTGTagCollectionView.podspec.json
index e0901b7..dbabf71 100644
--- a/Example/Pods/Local Podspecs/TTGTagCollectionView.podspec.json	
+++ b/Example/Pods/Local Podspecs/TTGTagCollectionView.podspec.json	
@@ -1,8 +1,8 @@
 {
   "name": "TTGTagCollectionView",
-  "version": "0.5.0",
-  "summary": "Show simple text tags or custom tag views in a vertical scrollable view.",
-  "description": "TTGTagCollectionView is useful for showing different size tag views in a vertical scrollable view and support Autolayout intrinsicContentSize at the same time. And if you only want to show text tags, you can use TTGTextTagCollectionView instead, which has more simple api. At the same time, It is highly customizable that many features of the text tag can be configured, like the tag font size and the background color.",
+  "version": "1.0.0",
+  "summary": "Show simple text tags or custom tag views in a vertical or horizontal scrollable view.",
+  "description": "TTGTagCollectionView is useful for showing different size tag views in a vertical or horizontal scrollable view and support Autolayout intrinsicContentSize at the same time. And if you only want to show text tags, you can use TTGTextTagCollectionView instead, which has more simple api. At the same time, It is highly customizable that many features of the text tag can be configured, like the tag font size and the background color.",
   "homepage": "https://github.com/zekunyan/TTGTagCollectionView",
   "license": "MIT",
   "authors": {
@@ -10,7 +10,7 @@
   },
   "source": {
     "git": "https://github.com/zekunyan/TTGTagCollectionView.git",
-    "tag": "0.5.0"
+    "tag": "1.0.0"
   },
   "social_media_url": "http://tutuge.me",
   "platforms": {
diff --git a/Example/Pods/Manifest.lock b/Example/Pods/Manifest.lock
index 43f429b..3a79587 100644
--- a/Example/Pods/Manifest.lock
+++ b/Example/Pods/Manifest.lock
@@ -1,5 +1,5 @@
 PODS:
-  - TTGTagCollectionView (0.5.0)
+  - TTGTagCollectionView (1.0.0)
 
 DEPENDENCIES:
   - TTGTagCollectionView (from `../`)
@@ -9,8 +9,8 @@ EXTERNAL SOURCES:
     :path: "../"
 
 SPEC CHECKSUMS:
-  TTGTagCollectionView: 94c43e13df2e39bdd8f37bd038438f183add84a4
+  TTGTagCollectionView: 7ed196f959f797c23e5dfc3754989718172d1cf1
 
 PODFILE CHECKSUM: f0fc553868b0459c5bd7ac738bceafe55aa8f98d
 
-COCOAPODS: 1.0.1
+COCOAPODS: 1.1.0.rc.2
diff --git a/Example/Pods/Pods.xcodeproj/project.pbxproj b/Example/Pods/Pods.xcodeproj/project.pbxproj
index afeacd1..9bad9ea 100644
--- a/Example/Pods/Pods.xcodeproj/project.pbxproj
+++ b/Example/Pods/Pods.xcodeproj/project.pbxproj
@@ -11,14 +11,15 @@
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@@ -53,10 +54,10 @@
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+		A60E4F7980D9E497F032A05CCCE8F85E /* TTGTagCollectionLayout.h */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.c.h; path = TTGTagCollectionLayout.h; sourceTree = "<group>"; };
+		AB3D4DCD910EC38CCF002BF15EC57D97 /* TTGTagCollectionLayout.m */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.c.objc; path = TTGTagCollectionLayout.m; sourceTree = "<group>"; };
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-				BF3253E31DB3600C00AF4CFC /* TTGTagCollectionLayout.h */,
-				BF3253E41DB3600C00AF4CFC /* TTGTagCollectionLayout.m */,
+				A60E4F7980D9E497F032A05CCCE8F85E /* TTGTagCollectionLayout.h */,
+				AB3D4DCD910EC38CCF002BF15EC57D97 /* TTGTagCollectionLayout.m */,
 				C54D6509B4125C0A2CA80BD6FAD5894D /* TTGTagCollectionView.h */,
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 				906FD2017FFEC78A8BC0E2988F967C90 /* TTGTextTagCollectionView.h */,
@@ -229,6 +230,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				A9B873B0ED82D5DAA0BDBB922F44FF15 /* TTGTagCollectionCell.h in Headers */,
+				9DE5D393CED08467C67DF45B09F5D230 /* TTGTagCollectionLayout.h in Headers */,
 				1C7CF2B39B101CDDF152750875FC7CFF /* TTGTagCollectionView.h in Headers */,
 				426DF14C704C91F82F0145579C3A6A63 /* TTGTextTagCollectionView.h in Headers */,
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@@ -328,7 +330,6 @@
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 			buildActionMask = 2147483647;
 			files = (
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 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -338,6 +339,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				59EB3A37D5EC6D956D1239AF5C3D19FC /* TTGTagCollectionCell.m in Sources */,
+				267A187FFEACEEDE627177E86EF71F90 /* TTGTagCollectionLayout.m in Sources */,
 				1BAD6647181994B942EEF5AA3484FF73 /* TTGTagCollectionView-dummy.m in Sources */,
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 				A967C556B071C11F9CB3F4038F063217 /* TTGTextTagCollectionView.m in Sources */,
@@ -356,11 +358,13 @@
 /* End PBXTargetDependency section */
 
 /* Begin XCBuildConfiguration section */
-		1C0F463EC69D9124BA7F518C4C177979 /* Release */ = {
+		18E03BB5A6EDDA765A37EF0F750B3E03 /* Release */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = A2437D585D2011C9A373A6FFE2A61805 /* Pods-TTGTagCollectionView_Tests.release.xcconfig */;
+			baseConfigurationReference = 7F375FD294D307200587A5B549B06378 /* Pods-TTGTagCollectionView_Example.release.xcconfig */;
 			buildSettings = {
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				"CODE_SIGN_IDENTITY[sdk=appletvos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=watchos*]" = "";
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_NO_COMMON_BLOCKS = YES;
@@ -377,53 +381,36 @@
 			};
 			name = Release;
 		};
-		3FA2475660FFC880302AD18E29B2E5FC /* Debug */ = {
+		20A4C20379AFDF08FAB4C6DED594DEFE /* Debug */ = {
 			isa = XCBuildConfiguration;
+			baseConfigurationReference = A06E2B2067B1C3E2F98A48E3A8575405 /* TTGTagCollectionView.xcconfig */;
 			buildSettings = {
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-				CLANG_WARN_ENUM_CONVERSION = YES;
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-				CLANG_WARN_UNREACHABLE_CODE = YES;
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-				GCC_OPTIMIZATION_LEVEL = 0;
-				GCC_PREPROCESSOR_DEFINITIONS = (
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-					"DEBUG=1",
-					"$(inherited)",
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-				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
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+				"CODE_SIGN_IDENTITY[sdk=watchos*]" = "";
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_PREFIX_HEADER = "Target Support Files/TTGTagCollectionView/TTGTagCollectionView-prefix.pch";
 				IPHONEOS_DEPLOYMENT_TARGET = 7.0;
-				ONLY_ACTIVE_ARCH = YES;
-				STRIP_INSTALLED_PRODUCT = NO;
-				SYMROOT = "${SRCROOT}/../build";
+				MTL_ENABLE_DEBUG_INFO = YES;
+				OTHER_LDFLAGS = "";
+				OTHER_LIBTOOLFLAGS = "";
+				PRIVATE_HEADERS_FOLDER_PATH = "";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				PUBLIC_HEADERS_FOLDER_PATH = "";
+				SDKROOT = iphoneos;
+				SKIP_INSTALL = YES;
 			};
 			name = Debug;
 		};
-		5DB1896928CD3E5AF63204EF276E9731 /* Release */ = {
+		558358DC08CABA2DBC7F2443DA7EF887 /* Release */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 7F375FD294D307200587A5B549B06378 /* Pods-TTGTagCollectionView_Example.release.xcconfig */;
+			baseConfigurationReference = A2437D585D2011C9A373A6FFE2A61805 /* Pods-TTGTagCollectionView_Tests.release.xcconfig */;
 			buildSettings = {
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				"CODE_SIGN_IDENTITY[sdk=appletvos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=watchos*]" = "";
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_NO_COMMON_BLOCKS = YES;
@@ -440,11 +427,13 @@
 			};
 			name = Release;
 		};
-		715B738E4E858F4D59FB169DDD19932A /* Debug */ = {
+		5609CD973074B04C12F825B6AE5F494D /* Debug */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 660218B1D4061B674A674D2603DB2C62 /* Pods-TTGTagCollectionView_Example.debug.xcconfig */;
+			baseConfigurationReference = 4F08DD56B21473A43A5A1D6F5856A52A /* Pods-TTGTagCollectionView_Tests.debug.xcconfig */;
 			buildSettings = {
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				"CODE_SIGN_IDENTITY[sdk=appletvos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=watchos*]" = "";
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_NO_COMMON_BLOCKS = YES;
@@ -461,32 +450,53 @@
 			};
 			name = Debug;
 		};
-		D04EF67C809107E3B92A7AAB2415CAD8 /* Debug */ = {
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-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_PREFIX_HEADER = "Target Support Files/TTGTagCollectionView/TTGTagCollectionView-prefix.pch";
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGNING_REQUIRED = NO;
+				COPY_PHASE_STRIP = YES;
+				ENABLE_NS_ASSERTIONS = NO;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"POD_CONFIGURATION_RELEASE=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 7.0;
-				MTL_ENABLE_DEBUG_INFO = YES;
-				OTHER_LDFLAGS = "";
-				OTHER_LIBTOOLFLAGS = "";
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-				PRODUCT_NAME = "$(TARGET_NAME)";
-				PUBLIC_HEADERS_FOLDER_PATH = "";
-				SDKROOT = iphoneos;
-				SKIP_INSTALL = YES;
+				PROVISIONING_PROFILE_SPECIFIER = NO_SIGNING/;
+				STRIP_INSTALLED_PRODUCT = NO;
+				SYMROOT = "${SRCROOT}/../build";
+				VALIDATE_PRODUCT = YES;
 			};
-			name = Debug;
+			name = Release;
 		};
-		EE5D3918188A0F754CFB84D3488C0777 /* Debug */ = {
+		CA94F64D78F4DECB3E237E054333D9A0 /* Debug */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 4F08DD56B21473A43A5A1D6F5856A52A /* Pods-TTGTagCollectionView_Tests.debug.xcconfig */;
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 			buildSettings = {
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				"CODE_SIGN_IDENTITY[sdk=appletvos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=watchos*]" = "";
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
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@@ -503,7 +513,7 @@
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 			name = Debug;
 		};
-		F325026B55060D3B22BEC0BAB5FA7344 /* Release */ = {
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@@ -521,13 +531,18 @@
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 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				COPY_PHASE_STRIP = YES;
-				ENABLE_NS_ASSERTIONS = NO;
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 				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = (
-					"POD_CONFIGURATION_RELEASE=1",
+					"POD_CONFIGURATION_DEBUG=1",
+					"DEBUG=1",
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+				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
@@ -535,17 +550,20 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 7.0;
+				ONLY_ACTIVE_ARCH = YES;
+				PROVISIONING_PROFILE_SPECIFIER = NO_SIGNING/;
 				STRIP_INSTALLED_PRODUCT = NO;
 				SYMROOT = "${SRCROOT}/../build";
-				VALIDATE_PRODUCT = YES;
 			};
-			name = Release;
+			name = Debug;
 		};
-		FAF4F044426B104EF2C7D704924C0A04 /* Release */ = {
+		D4965756E137BC9A9B840AE78E8EC2DF /* Release */ = {
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = A06E2B2067B1C3E2F98A48E3A8575405 /* TTGTagCollectionView.xcconfig */;
 			buildSettings = {
-				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				"CODE_SIGN_IDENTITY[sdk=appletvos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
+				"CODE_SIGN_IDENTITY[sdk=watchos*]" = "";
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_NO_COMMON_BLOCKS = YES;
@@ -568,8 +586,8 @@
 		2D8E8EC45A3A1A1D94AE762CB5028504 /* Build configuration list for PBXProject "Pods" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
-				3FA2475660FFC880302AD18E29B2E5FC /* Debug */,
-				F325026B55060D3B22BEC0BAB5FA7344 /* Release */,
+				CF7953F66E785E8876EB4D370D777D50 /* Debug */,
+				79B0C2E66EFA9917ED6EDDB8FC6A7684 /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
@@ -577,8 +595,8 @@
 		6089257E76CCD032D90FEE1C0384DE3D /* Build configuration list for PBXNativeTarget "TTGTagCollectionView" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
-				D04EF67C809107E3B92A7AAB2415CAD8 /* Debug */,
-				FAF4F044426B104EF2C7D704924C0A04 /* Release */,
+				20A4C20379AFDF08FAB4C6DED594DEFE /* Debug */,
+				D4965756E137BC9A9B840AE78E8EC2DF /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
@@ -586,8 +604,8 @@
 		9971B3989FF3FA9C24BD13B5B64449DC /* Build configuration list for PBXNativeTarget "Pods-TTGTagCollectionView_Tests" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
-				EE5D3918188A0F754CFB84D3488C0777 /* Debug */,
-				1C0F463EC69D9124BA7F518C4C177979 /* Release */,
+				5609CD973074B04C12F825B6AE5F494D /* Debug */,
+				558358DC08CABA2DBC7F2443DA7EF887 /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
@@ -595,8 +613,8 @@
 		CC5E58A939BB2CBF08C97B3CCCC067A4 /* Build configuration list for PBXNativeTarget "Pods-TTGTagCollectionView_Example" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
-				715B738E4E858F4D59FB169DDD19932A /* Debug */,
-				5DB1896928CD3E5AF63204EF276E9731 /* Release */,
+				CA94F64D78F4DECB3E237E054333D9A0 /* Debug */,
+				18E03BB5A6EDDA765A37EF0F750B3E03 /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
diff --git a/Example/Pods/Pods.xcodeproj/xcshareddata/xcschemes/TTGTagCollectionView.xcscheme b/Example/Pods/Pods.xcodeproj/xcshareddata/xcschemes/TTGTagCollectionView.xcscheme
new file mode 100644
index 0000000..7f8e33a
--- /dev/null
+++ b/Example/Pods/Pods.xcodeproj/xcshareddata/xcschemes/TTGTagCollectionView.xcscheme
@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0700"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "46A45471D548A6D787B015807D01491F"
+               BuildableName = "libTTGTagCollectionView.a"
+               BlueprintName = "TTGTagCollectionView"
+               ReferencedContainer = "container:Pods.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <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">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "46A45471D548A6D787B015807D01491F"
+            BuildableName = "libTTGTagCollectionView.a"
+            BlueprintName = "TTGTagCollectionView"
+            ReferencedContainer = "container:Pods.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example-acknowledgements.plist b/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example-acknowledgements.plist
index d80e238..58bf304 100644
--- a/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example-acknowledgements.plist	
+++ b/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example-acknowledgements.plist	
@@ -34,6 +34,8 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 </string>
+			<key>License</key>
+			<string>MIT</string>
 			<key>Title</key>
 			<string>TTGTagCollectionView</string>
 			<key>Type</key>
diff --git a/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example.debug.xcconfig b/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example.debug.xcconfig
index c0a90ab..485c9ad 100644
--- a/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example.debug.xcconfig	
+++ b/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example.debug.xcconfig	
@@ -1,3 +1,4 @@
+ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = NO
 GCC_PREPROCESSOR_DEFINITIONS = $(inherited) COCOAPODS=1
 HEADER_SEARCH_PATHS = $(inherited) "${PODS_ROOT}/Headers/Public" "${PODS_ROOT}/Headers/Public/TTGTagCollectionView"
 LIBRARY_SEARCH_PATHS = $(inherited) "$PODS_CONFIGURATION_BUILD_DIR/TTGTagCollectionView"
diff --git a/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example.release.xcconfig b/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example.release.xcconfig
index c0a90ab..485c9ad 100644
--- a/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example.release.xcconfig	
+++ b/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Example/Pods-TTGTagCollectionView_Example.release.xcconfig	
@@ -1,3 +1,4 @@
+ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = NO
 GCC_PREPROCESSOR_DEFINITIONS = $(inherited) COCOAPODS=1
 HEADER_SEARCH_PATHS = $(inherited) "${PODS_ROOT}/Headers/Public" "${PODS_ROOT}/Headers/Public/TTGTagCollectionView"
 LIBRARY_SEARCH_PATHS = $(inherited) "$PODS_CONFIGURATION_BUILD_DIR/TTGTagCollectionView"
diff --git a/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Tests/Pods-TTGTagCollectionView_Tests.debug.xcconfig b/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Tests/Pods-TTGTagCollectionView_Tests.debug.xcconfig
index 821fdf9..1b83d94 100644
--- a/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Tests/Pods-TTGTagCollectionView_Tests.debug.xcconfig	
+++ b/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Tests/Pods-TTGTagCollectionView_Tests.debug.xcconfig	
@@ -1,3 +1,4 @@
+ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = NO
 GCC_PREPROCESSOR_DEFINITIONS = $(inherited) COCOAPODS=1
 HEADER_SEARCH_PATHS = $(inherited) "${PODS_ROOT}/Headers/Public" "${PODS_ROOT}/Headers/Public/TTGTagCollectionView"
 LIBRARY_SEARCH_PATHS = $(inherited) "$PODS_CONFIGURATION_BUILD_DIR/TTGTagCollectionView"
diff --git a/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Tests/Pods-TTGTagCollectionView_Tests.release.xcconfig b/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Tests/Pods-TTGTagCollectionView_Tests.release.xcconfig
index 821fdf9..1b83d94 100644
--- a/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Tests/Pods-TTGTagCollectionView_Tests.release.xcconfig	
+++ b/Example/Pods/Target Support Files/Pods-TTGTagCollectionView_Tests/Pods-TTGTagCollectionView_Tests.release.xcconfig	
@@ -1,3 +1,4 @@
+ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = NO
 GCC_PREPROCESSOR_DEFINITIONS = $(inherited) COCOAPODS=1
 HEADER_SEARCH_PATHS = $(inherited) "${PODS_ROOT}/Headers/Public" "${PODS_ROOT}/Headers/Public/TTGTagCollectionView"
 LIBRARY_SEARCH_PATHS = $(inherited) "$PODS_CONFIGURATION_BUILD_DIR/TTGTagCollectionView"
diff --git a/Example/TTGTagCollectionView.xcodeproj/project.pbxproj b/Example/TTGTagCollectionView.xcodeproj/project.pbxproj
index 6ed9bdf..f05770d 100644
--- a/Example/TTGTagCollectionView.xcodeproj/project.pbxproj
+++ b/Example/TTGTagCollectionView.xcodeproj/project.pbxproj
@@ -387,7 +387,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		C0B487736D45FBD6C2EB8B7B /* [CP] Embed Pods Frameworks */ = {
@@ -417,7 +417,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 /* End PBXShellScriptBuildPhase section */
diff --git a/Example/TTGTagCollectionView/Main.storyboard b/Example/TTGTagCollectionView/Main.storyboard
index b107573..5c86452 100644
--- a/Example/TTGTagCollectionView/Main.storyboard
+++ b/Example/TTGTagCollectionView/Main.storyboard
@@ -89,7 +89,7 @@
                             <constraint firstItem="FgE-N2-9mm" firstAttribute="trailing" secondItem="TpU-gO-2f1" secondAttribute="trailingMargin" id="yK2-gz-kpL"/>
                         </constraints>
                     </view>
-                    <navigationItem key="navigationItem" id="1kH-BO-Stk"/>
+                    <navigationItem key="navigationItem" title="TTGTagCollectionView" id="1kH-BO-Stk"/>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="tc2-Qw-aMS" userLabel="First Responder" sceneMemberID="firstResponder"/>
             </objects>
diff --git a/README.md b/README.md
index f062897..8cb7695 100644
--- a/README.md
+++ b/README.md
@@ -5,16 +5,16 @@
 [![License](https://img.shields.io/cocoapods/l/TTGTagCollectionView.svg?style=flat)](http://cocoapods.org/pods/TTGTagCollectionView)
 [![Platform](https://img.shields.io/cocoapods/p/TTGTagCollectionView.svg?style=flat)](http://cocoapods.org/pods/TTGTagCollectionView)
 
-![Screenshot](http://7nj2iz.com1.z0.glb.clouddn.com/TTGTagCollectionView_screenshot.jpeg)
+![Screenshot](https://github.com/zekunyan/TTGTagCollectionView/raw/master/Resources/screen_shot.jpeg)
 
 ## What 
 
-TTGTagCollectionView is useful for showing different size tag views in a vertical scrollable view. And if you only want to show text tags, you can use TTGTextTagCollectionView instead, which has more simple api. At the same time, It is highly customizable that many features of the text tag can be configured, like the tag font size and the background color.
+TTGTagCollectionView is useful for showing different size tag views in a vertical or horizontal scrollable view. And if you only want to show text tags, you can use TTGTextTagCollectionView instead, which has more simple api. At the same time, It is highly customizable that many features of the text tag can be configured, like the tag font size and the background color.
 
 ## Features
 * Both text tag and custom view tag supported.
 * Highly customizable
-* Vertical scrollable
+* Vertical and horizontal scrollable
 * Power by UICollectionView
 * Support Autolayout `intrinsicContentSize` to auto determine height based on content size
 
@@ -50,7 +50,7 @@ Conform the `TTGTextTagCollectionViewDelegate` protocol to get callback when you
 @optional
 - (void)textTagCollectionView:(TTGTextTagCollectionView *)textTagCollectionView didTapTag:(NSString *)tagText atIndex:(NSUInteger)index selected:(BOOL)selected;
 
-- (void)textTagCollectionView:(TTGTextTagCollectionView *)textTagCollectionView updateContentHeight:(CGFloat)newContentHeight;
+- (void)textTagCollectionView:(TTGTextTagCollectionView *)textTagCollectionView updateContentSize:(CGSize)contentSize;
 @end
 ```
 
@@ -87,8 +87,14 @@ Conform the `TTGTextTagCollectionViewDelegate` protocol to get callback when you
 @property (assign, nonatomic) CGFloat horizontalSpacing;
 @property (assign, nonatomic) CGFloat verticalSpacing;
 
-// Content height
-@property (assign, nonatomic, readonly) CGFloat contentHeight;
+// Content size
+@property (nonatomic, assign, readonly) CGSize contentSize;
+
+// Scroll direction. Default is vertical
+@property (nonatomic, assign) TTGTagCollectionScrollDirection scrollDirection;
+
+// Number of lines for horizontal direction
+@property (nonatomic, assign) NSUInteger numberOfLinesForHorizontalScrollDirection;
 ```
 
 #### Config tags
@@ -125,6 +131,7 @@ Conform the `TTGTextTagCollectionViewDelegate` protocol to get callback when you
 
 #### Reload
 You can reload tags programmatically.
+
 ```
 - (void)reload;
 ```
@@ -136,6 +143,7 @@ Use `TTGTagCollectionView` to show custom tag views.
 Just like the UITableView, you must conform and implement the required methods of `TTGTagCollectionViewDelegate` and `TTGTagCollectionViewDataSource` to get `TTGTagCollectionView` work.
 
 **DataSource**
+
 ```
 @protocol TTGTagCollectionViewDataSource <NSObject>
 @required
@@ -146,6 +154,7 @@ Just like the UITableView, you must conform and implement the required methods o
 ```
 
 **Delegate**
+
 ```
 @protocol TTGTagCollectionViewDelegate <NSObject>
 @required
@@ -154,20 +163,39 @@ Just like the UITableView, you must conform and implement the required methods o
 @optional
 - (void)tagCollectionView:(TTGTagCollectionView *)tagCollectionView didSelectTag:(UIView *)tagView atIndex:(NSUInteger)index;
 
-- (void)tagCollectionView:(TTGTagCollectionView *)tagCollectionView updateContentHeight:(CGFloat)newContentHeight;
+- (void)tagCollectionView:(TTGTagCollectionView *)tagCollectionView updateContentSize:(CGSize)contentSize;
 @end
 ```
 
 #### Customization
 
 You can config the horizontal and vertical space between tags.
+
 ```
-// Space
-@property (assign, nonatomic) CGFloat horizontalSpacing;
-@property (assign, nonatomic) CGFloat verticalSpacing;
+/**
+ * Tags scroll direction, default is veritical
+ */
+@property (nonatomic, assign) TTGTagCollectionScrollDirection scrollDirection;
+
+/**
+ * Number of lines for horizontal scroll direction
+ */
+@property (nonatomic, assign) NSUInteger numberOfLinesForHorizontalScrollDirection;
+
+/**
+ * Horizontal space between tags
+ */
+@property (nonatomic, assign) CGFloat horizontalSpacing;
+
+/**
+ * Vertical space between tags
+ */
+@property (nonatomic, assign) CGFloat verticalSpacing;
 
-// Content height
-@property (assign, nonatomic, readonly) CGFloat contentHeight;
+/**
+ * The true tags content size
+ */
+@property (nonatomic, assign, readonly) CGSize contentSize;
 ```
 
 #### Reload
diff --git a/Resources/screen_shot.jpeg b/Resources/screen_shot.jpeg
new file mode 100644
index 0000000..990df89
Binary files /dev/null and b/Resources/screen_shot.jpeg differ
diff --git a/TTGTagCollectionView.podspec b/TTGTagCollectionView.podspec
index 33d1187..eacb197 100644
--- a/TTGTagCollectionView.podspec
+++ b/TTGTagCollectionView.podspec
@@ -1,10 +1,10 @@
 Pod::Spec.new do |s|
   s.name             = "TTGTagCollectionView"
-  s.version          = "0.5.0"
-  s.summary          = "Show simple text tags or custom tag views in a vertical scrollable view."
+  s.version          = "1.0.0"
+  s.summary          = "Show simple text tags or custom tag views in a vertical or horizontal scrollable view."
   
   s.description      = <<-DESC
-                       TTGTagCollectionView is useful for showing different size tag views in a vertical scrollable view and support Autolayout intrinsicContentSize at the same time. And if you only want to show text tags, you can use TTGTextTagCollectionView instead, which has more simple api. At the same time, It is highly customizable that many features of the text tag can be configured, like the tag font size and the background color.
+                       TTGTagCollectionView is useful for showing different size tag views in a vertical or horizontal scrollable view and support Autolayout intrinsicContentSize at the same time. And if you only want to show text tags, you can use TTGTextTagCollectionView instead, which has more simple api. At the same time, It is highly customizable that many features of the text tag can be configured, like the tag font size and the background color.
                        DESC
 
   s.homepage         = "https://github.com/zekunyan/TTGTagCollectionView"