diff --git a/.gitignore b/.gitignore
index 9eed7dbf6..559aef1e5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,8 @@ gen
 target/
 
 *.iml
+
+# Gradle build
+library/.gradle/
+library/build/
+library/local.properties
diff --git a/example/example.iml b/example/example.iml
deleted file mode 100644
index 24b793878..000000000
--- a/example/example.iml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="FacetManager">
-    <facet type="android" name="Android">
-      <configuration />
-    </facet>
-  </component>
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/gen" isTestSource="false" />
-    </content>
-    <orderEntry type="jdk" jdkName="Android 4.2.2" jdkType="Android SDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="module" module-name="library" />
-  </component>
-</module>
-
diff --git a/library/AndroidManifest.xml b/library/AndroidManifest.xml
index 2d9e88a9e..244140328 100644
--- a/library/AndroidManifest.xml
+++ b/library/AndroidManifest.xml
@@ -4,8 +4,4 @@
     android:versionCode="1"
     android:versionName="1.0" >
 
-    <uses-sdk
-        android:minSdkVersion="5"
-        android:targetSdkVersion="17" />
-
-</manifest>
\ No newline at end of file
+</manifest>
diff --git a/library/build.gradle b/library/build.gradle
index e2a5bf978..4265ddd42 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -3,18 +3,18 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:0.4.+'
+        classpath 'com.android.tools.build:gradle:1.3.0'
     }
 }
-apply plugin: 'android-library'
+apply plugin: 'com.android.library'
 
 dependencies {
-    compile 'com.android.support:support-v4:13.0.0'
+    compile 'com.android.support:support-v4:23.0.1'
 }
 
 android {
-    compileSdkVersion 17
-    buildToolsVersion "17.0.0"
+    compileSdkVersion 23
+    buildToolsVersion '23.0.1'
 
     defaultConfig {
         minSdkVersion 7
diff --git a/library/library.iml b/library/library.iml
deleted file mode 100644
index a6e3c8f47..000000000
--- a/library/library.iml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="FacetManager">
-    <facet type="android" name="Android">
-      <configuration>
-        <option name="LIBRARY_PROJECT" value="true" />
-      </configuration>
-    </facet>
-  </component>
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/gen" isTestSource="false" />
-    </content>
-    <orderEntry type="jdk" jdkName="Android 4.2.2" jdkType="Android SDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
-
diff --git a/library/src/com/jeremyfeinstein/slidingmenu/lib/CustomViewAbove.java b/library/src/com/jeremyfeinstein/slidingmenu/lib/CustomViewAbove.java
index fa73ef05b..342a1599c 100644
--- a/library/src/com/jeremyfeinstein/slidingmenu/lib/CustomViewAbove.java
+++ b/library/src/com/jeremyfeinstein/slidingmenu/lib/CustomViewAbove.java
@@ -13,7 +13,6 @@
 import android.support.v4.view.ViewCompat;
 import android.support.v4.view.ViewConfigurationCompat;
 import android.util.AttributeSet;
-import android.util.FloatMath;
 import android.util.Log;
 import android.view.FocusFinder;
 import android.view.KeyEvent;
@@ -300,7 +299,7 @@ public void clearIgnoredViews() {
 	float distanceInfluenceForSnapDuration(float f) {
 		f -= 0.5f; // center the values about 0.
 		f *= 0.3f * Math.PI / 2.0f;
-		return (float) FloatMath.sin(f);
+		return (float) Math.sin(f);
 	}
 
 	public int getDestScrollX(int page) {