diff --git a/LMGaugeView.podspec b/LMGaugeView.podspec
index 8e45b09..7462fb6 100644
--- a/LMGaugeView.podspec
+++ b/LMGaugeView.podspec
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name             = "LMGaugeView"
-  s.version          = "1.0.0"
+  s.version          = "1.0.1"
   s.summary          = "LMGaugeView is a simple and customizable gauge control for iOS."
   s.homepage         = "https://github.com/lminhtm/LMGaugeView"
   s.license          = 'MIT'
diff --git a/LMGaugeView/LMGaugeView.m b/LMGaugeView/LMGaugeView.m
index 6ce15d1..2e9264e 100755
--- a/LMGaugeView/LMGaugeView.m
+++ b/LMGaugeView/LMGaugeView.m
@@ -127,7 +127,7 @@ - (void)strokeGauge
     /*!
      *  Set progress for ring layer
      */
-    CGFloat progress = (self.value - self.minValue)/self.maxValue;
+    CGFloat progress = self.maxValue ? (self.value - self.minValue)/self.maxValue : 0;
     self.progressLayer.strokeEnd = progress;
     
     /*!
@@ -148,8 +148,8 @@ - (void)drawRect:(CGRect)rect
     /*!
      *  Prepare drawing
      */
-    self.divisionUnitValue = (self.maxValue - self.minValue)/self.numOfDivisions;
-    self.divisionUnitAngle = (M_PI * 2 - ABS(self.endAngle - self.startAngle))/self.numOfDivisions;
+    self.divisionUnitValue = self.numOfDivisions ? (self.maxValue - self.minValue)/self.numOfDivisions : 0;
+    self.divisionUnitAngle = self.numOfDivisions ? (M_PI * 2 - ABS(self.endAngle - self.startAngle))/self.numOfDivisions : 0;
     CGPoint center = CGPointMake(CGRectGetWidth(self.bounds)/2, CGRectGetHeight(self.bounds)/2);
     CGFloat ringRadius = MIN(CGRectGetWidth(self.bounds), CGRectGetHeight(self.bounds))/2 - self.ringThickness/2;
     CGFloat dotRadius = ringRadius - self.ringThickness/2 - self.divisionsPadding - self.divisionsRadius/2;
@@ -176,11 +176,11 @@ - (void)drawRect:(CGRect)rect
     /*!
      *  Draw divisions and subdivisions
      */
-    for (int i = 0; i <= self.numOfDivisions; i++)
+    for (int i = 0; i <= self.numOfDivisions && self.numOfDivisions != 0; i++)
     {
         if (i != self.numOfDivisions)
         {
-            for (int j = 0; j <= self.numOfSubDivisions; j++)
+            for (int j = 0; j <= self.numOfSubDivisions && self.numOfSubDivisions != 0; j++)
             {
                 // Subdivisions
                 CGFloat value = i * self.divisionUnitValue + j * self.divisionUnitValue/self.numOfSubDivisions;
@@ -206,7 +206,7 @@ - (void)drawRect:(CGRect)rect
     /*!
      *  Draw the limit dot
      */
-    if (self.showLimitDot)
+    if (self.showLimitDot && self.numOfDivisions != 0)
     {
         CGFloat angle = [self angleFromValue:self.limitValue];
         CGPoint dotCenter = CGPointMake(dotRadius * cos(angle) + center.x, dotRadius * sin(angle) + center.y);
@@ -288,7 +288,7 @@ - (void)drawRect:(CGRect)rect
 
 - (CGFloat)angleFromValue:(CGFloat)value
 {
-    CGFloat level = ((value - self.minValue)/self.divisionUnitValue);
+    CGFloat level = self.divisionUnitValue ? (value - self.minValue)/self.divisionUnitValue : 0;
     CGFloat angle = level * self.divisionUnitAngle + self.startAngle;
     return angle;
 }
diff --git a/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/project.pbxproj b/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/project.pbxproj
index 7de65e9..6779c65 100755
--- a/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/project.pbxproj
+++ b/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/project.pbxproj
@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		5C8E55721BF977A0009C38FC /* Launch Screen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 5C8E55711BF977A0009C38FC /* Launch Screen.storyboard */; };
 		5CE9FFE71B6C7058004C633B /* LMGaugeView.m in Sources */ = {isa = PBXBuildFile; fileRef = 5CE9FFE61B6C7058004C633B /* LMGaugeView.m */; };
 		62166421198AB252009AD267 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 62166420198AB252009AD267 /* Foundation.framework */; };
 		62166423198AB252009AD267 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 62166422198AB252009AD267 /* CoreGraphics.framework */; };
@@ -20,6 +21,7 @@
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		5C8E55711BF977A0009C38FC /* Launch Screen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = "Launch Screen.storyboard"; sourceTree = "<group>"; };
 		5CE9FFE51B6C7058004C633B /* LMGaugeView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = LMGaugeView.h; sourceTree = "<group>"; };
 		5CE9FFE61B6C7058004C633B /* LMGaugeView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = LMGaugeView.m; sourceTree = "<group>"; };
 		6216641D198AB252009AD267 /* LMGaugeView.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = LMGaugeView.app; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -107,6 +109,7 @@
 			isa = PBXGroup;
 			children = (
 				62166438198AB252009AD267 /* Images.xcassets */,
+				5C8E55711BF977A0009C38FC /* Launch Screen.storyboard */,
 				62166428198AB252009AD267 /* LMGaugeViewDemo-Info.plist */,
 				62166429198AB252009AD267 /* InfoPlist.strings */,
 				6216642C198AB252009AD267 /* main.m */,
@@ -142,7 +145,7 @@
 			isa = PBXProject;
 			attributes = {
 				CLASSPREFIX = LM;
-				LastUpgradeCheck = 0510;
+				LastUpgradeCheck = 0710;
 				ORGANIZATIONNAME = LMinh;
 			};
 			buildConfigurationList = 62166418198AB252009AD267 /* Build configuration list for PBXProject "LMGaugeViewDemo" */;
@@ -170,6 +173,7 @@
 			files = (
 				62166439198AB252009AD267 /* Images.xcassets in Resources */,
 				6216642B198AB252009AD267 /* InfoPlist.strings in Resources */,
+				5C8E55721BF977A0009C38FC /* Launch Screen.storyboard in Resources */,
 				62166434198AB252009AD267 /* Main.storyboard in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -228,6 +232,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				COPY_PHASE_STRIP = NO;
+				ENABLE_TESTABILITY = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_OPTIMIZATION_LEVEL = 0;
@@ -289,6 +294,7 @@
 				GCC_PREFIX_HEADER = "LMGaugeViewDemo/LMGaugeViewDemo-Prefix.pch";
 				INFOPLIST_FILE = "LMGaugeViewDemo/LMGaugeViewDemo-Info.plist";
 				IPHONEOS_DEPLOYMENT_TARGET = 7.0;
+				PRODUCT_BUNDLE_IDENTIFIER = "com.lminh.${PRODUCT_NAME:rfc1034identifier}";
 				PRODUCT_NAME = LMGaugeView;
 				WRAPPER_EXTENSION = app;
 			};
@@ -303,6 +309,7 @@
 				GCC_PREFIX_HEADER = "LMGaugeViewDemo/LMGaugeViewDemo-Prefix.pch";
 				INFOPLIST_FILE = "LMGaugeViewDemo/LMGaugeViewDemo-Info.plist";
 				IPHONEOS_DEPLOYMENT_TARGET = 7.0;
+				PRODUCT_BUNDLE_IDENTIFIER = "com.lminh.${PRODUCT_NAME:rfc1034identifier}";
 				PRODUCT_NAME = LMGaugeView;
 				WRAPPER_EXTENSION = app;
 			};
diff --git a/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/project.xcworkspace/xcuserdata/lminh.xcuserdatad/UserInterfaceState.xcuserstate b/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/project.xcworkspace/xcuserdata/lminh.xcuserdatad/UserInterfaceState.xcuserstate
index 08c5b44..45cffa3 100644
Binary files a/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/project.xcworkspace/xcuserdata/lminh.xcuserdatad/UserInterfaceState.xcuserstate and b/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/project.xcworkspace/xcuserdata/lminh.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/xcuserdata/lminh.xcuserdatad/xcschemes/LMGaugeViewDemo.xcscheme b/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/xcuserdata/lminh.xcuserdatad/xcschemes/LMGaugeViewDemo.xcscheme
index eb7be0d..379019b 100644
--- a/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/xcuserdata/lminh.xcuserdatad/xcschemes/LMGaugeViewDemo.xcscheme
+++ b/LMGaugeViewDemo/LMGaugeViewDemo.xcodeproj/xcuserdata/lminh.xcuserdatad/xcschemes/LMGaugeViewDemo.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0640"
+   LastUpgradeVersion = "0710"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -23,10 +23,10 @@
       </BuildActionEntries>
    </BuildAction>
    <TestAction
+      buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "YES"
-      buildConfiguration = "Debug">
+      shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
       </Testables>
       <MacroExpansion>
@@ -38,15 +38,18 @@
             ReferencedContainer = "container:LMGaugeViewDemo.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
    </TestAction>
    <LaunchAction
+      buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
-      buildConfiguration = "Debug"
       ignoresPersistentStateOnLaunch = "NO"
       debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
       allowLocationSimulation = "YES">
       <BuildableProductRunnable
          runnableDebuggingMode = "0">
@@ -62,10 +65,10 @@
       </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
+      buildConfiguration = "Release"
       shouldUseLaunchSchemeArgsEnv = "YES"
       savedToolIdentifier = ""
       useCustomWorkingDirectory = "NO"
-      buildConfiguration = "Release"
       debugDocumentVersioning = "YES">
       <BuildableProductRunnable
          runnableDebuggingMode = "0">
diff --git a/LMGaugeViewDemo/LMGaugeViewDemo/Base.lproj/Main.storyboard b/LMGaugeViewDemo/LMGaugeViewDemo/Base.lproj/Main.storyboard
index c5f94ba..9b81c12 100755
--- a/LMGaugeViewDemo/LMGaugeViewDemo/Base.lproj/Main.storyboard
+++ b/LMGaugeViewDemo/LMGaugeViewDemo/Base.lproj/Main.storyboard
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="7706" systemVersion="14E46" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" initialViewController="vXZ-lx-hvc">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="9059" systemVersion="15A284" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" initialViewController="vXZ-lx-hvc">
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7703"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9049"/>
         <capability name="Aspect ratio constraints" minToolsVersion="5.1"/>
     </dependencies>
     <scenes>
-        <!--View Controller-->
+        <!--Delegate-->
         <scene sceneID="ufC-wZ-h7g">
             <objects>
                 <viewController id="vXZ-lx-hvc" customClass="LMViewController" sceneMemberID="viewController">
@@ -20,6 +20,7 @@
                         <subviews>
                             <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="UgZ-WN-tPe" customClass="LMGaugeView">
                                 <rect key="frame" x="20" y="114" width="280" height="280"/>
+                                <animations/>
                                 <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
                                 <constraints>
                                     <constraint firstAttribute="width" secondItem="UgZ-WN-tPe" secondAttribute="height" multiplier="1:1" id="x0s-rf-4tG"/>
@@ -38,12 +39,14 @@
                             </view>
                             <switch opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="750" verticalHuggingPriority="750" contentHorizontalAlignment="center" contentVerticalAlignment="center" on="YES" translatesAutoresizingMaskIntoConstraints="NO" id="IR3-O8-TRX">
                                 <rect key="frame" x="134" y="487" width="51" height="31"/>
+                                <animations/>
                                 <connections>
                                     <action selector="changedStyleSwitchValueChanged:" destination="vXZ-lx-hvc" eventType="valueChanged" id="Kq5-AS-1ZL"/>
                                 </connections>
                             </switch>
                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Developed by LMinh" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="DcH-fn-VJ8" userLabel="Label - About">
                                 <rect key="frame" x="20" y="538" width="280" height="20"/>
+                                <animations/>
                                 <constraints>
                                     <constraint firstAttribute="height" constant="20" id="jQR-oE-QbD"/>
                                 </constraints>
@@ -52,6 +55,7 @@
                                 <nil key="highlightedColor"/>
                             </label>
                         </subviews>
+                        <animations/>
                         <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                         <constraints>
                             <constraint firstItem="2fi-mo-0CV" firstAttribute="top" secondItem="DcH-fn-VJ8" secondAttribute="bottom" constant="10" id="8Oe-gH-qFC"/>
@@ -76,9 +80,4 @@
             <point key="canvasLocation" x="-12" y="358"/>
         </scene>
     </scenes>
-    <simulatedMetricsContainer key="defaultSimulatedMetrics">
-        <simulatedStatusBarMetrics key="statusBar"/>
-        <simulatedOrientationMetrics key="orientation"/>
-        <simulatedScreenMetrics key="destination" type="retina4"/>
-    </simulatedMetricsContainer>
 </document>
diff --git a/LMGaugeViewDemo/LMGaugeViewDemo/LMGaugeViewDemo-Info.plist b/LMGaugeViewDemo/LMGaugeViewDemo/LMGaugeViewDemo-Info.plist
index 0aec53b..af7e9f0 100755
--- a/LMGaugeViewDemo/LMGaugeViewDemo/LMGaugeViewDemo-Info.plist
+++ b/LMGaugeViewDemo/LMGaugeViewDemo/LMGaugeViewDemo-Info.plist
@@ -9,7 +9,7 @@
 	<key>CFBundleExecutable</key>
 	<string>${EXECUTABLE_NAME}</string>
 	<key>CFBundleIdentifier</key>
-	<string>com.lminh.${PRODUCT_NAME:rfc1034identifier}</string>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
@@ -24,6 +24,8 @@
 	<string>1.0</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>Launch Screen</string>
 	<key>UIMainStoryboardFile</key>
 	<string>Main</string>
 	<key>UIRequiredDeviceCapabilities</key>
diff --git a/LMGaugeViewDemo/LMGaugeViewDemo/Launch Screen.storyboard b/LMGaugeViewDemo/LMGaugeViewDemo/Launch Screen.storyboard
new file mode 100644
index 0000000..2d177be
--- /dev/null
+++ b/LMGaugeViewDemo/LMGaugeViewDemo/Launch Screen.storyboard	
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="9059" systemVersion="15A284" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9049"/>
+        <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
+                        <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright © 2015 LMinh. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="obG-Y5-kRd">
+                                <rect key="frame" x="20" y="559" width="560" height="21"/>
+                                <animations/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="LMGaugeViewDemo" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="GJd-Yh-RWb">
+                                <rect key="frame" x="20" y="180" width="560" height="43"/>
+                                <animations/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="36"/>
+                                <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                        </subviews>
+                        <animations/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                        <constraints>
+                            <constraint firstAttribute="centerX" secondItem="obG-Y5-kRd" secondAttribute="centerX" id="5cz-MP-9tL"/>
+                            <constraint firstAttribute="centerX" secondItem="GJd-Yh-RWb" secondAttribute="centerX" id="Q3B-4B-g5h"/>
+                            <constraint firstItem="obG-Y5-kRd" firstAttribute="leading" secondItem="Ze5-6b-2t3" secondAttribute="leading" constant="20" symbolic="YES" id="SfN-ll-jLj"/>
+                            <constraint firstAttribute="bottom" secondItem="obG-Y5-kRd" secondAttribute="bottom" constant="20" id="Y44-ml-fuU"/>
+                            <constraint firstItem="GJd-Yh-RWb" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="bottom" multiplier="1/3" constant="1" id="moa-c2-u7t"/>
+                            <constraint firstItem="GJd-Yh-RWb" firstAttribute="leading" secondItem="Ze5-6b-2t3" secondAttribute="leading" constant="20" symbolic="YES" id="x7j-FC-K8j"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="371" y="372"/>
+        </scene>
+    </scenes>
+</document>