From 1a37180129172d93aa60172c99d14a2d430071e4 Mon Sep 17 00:00:00 2001
From: MasayukiSuda <topman31daasuu@gmail.com>
Date: Sat, 19 Mar 2016 01:28:27 +0900
Subject: [PATCH] initial commit

---
 build.gradle                                       |  23 +++
 ei/.gitignore                                      |   1 +
 ei/build.gradle                                    |  38 ++++
 ei/proguard-rules.pro                              |  17 ++
 .../java/com/daasuu/ei/ApplicationTest.java        |  13 ++
 ei/src/main/AndroidManifest.xml                    |  11 ++
 ei/src/main/java/com/daasuu/ei/Ease.java           |  36 ++++
 .../java/com/daasuu/ei/EasingInterpolator.java     |  22 +++
 ei/src/main/java/com/daasuu/ei/EasingProvider.java | 200 +++++++++++++++++++++
 ei/src/main/res/values/strings.xml                 |   3 +
 .../test/java/com/daasuu/ei/ExampleUnitTest.java   |  15 ++
 gradle.properties                                  |  11 ++
 gradle/wrapper/gradle-wrapper.jar                  | Bin 0 -> 53637 bytes
 gradle/wrapper/gradle-wrapper.properties           |   6 +
 gradlew                                            | 160 +++++++++++++++++
 gradlew.bat                                        |  90 ++++++++++
 sample/.gitignore                                  |   1 +
 sample/build.gradle                                |  27 +++
 sample/proguard-rules.pro                          |  17 ++
 .../daasuu/easinginterpolator/ApplicationTest.java |  13 ++
 sample/src/main/AndroidManifest.xml                |  20 +++
 .../daasuu/easinginterpolator/MainActivity.java    |  28 +++
 sample/src/main/res/layout/activity_main.xml       |  17 ++
 sample/src/main/res/mipmap-hdpi/ic_launcher.png    | Bin 0 -> 3418 bytes
 sample/src/main/res/mipmap-mdpi/ic_launcher.png    | Bin 0 -> 2206 bytes
 sample/src/main/res/mipmap-xhdpi/ic_launcher.png   | Bin 0 -> 4842 bytes
 sample/src/main/res/mipmap-xxhdpi/ic_launcher.png  | Bin 0 -> 7718 bytes
 sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png | Bin 0 -> 10486 bytes
 sample/src/main/res/values-w820dp/dimens.xml       |   6 +
 sample/src/main/res/values/colors.xml              |   6 +
 sample/src/main/res/values/dimens.xml              |   5 +
 sample/src/main/res/values/strings.xml             |   3 +
 sample/src/main/res/values/styles.xml              |  11 ++
 .../daasuu/easinginterpolator/ExampleUnitTest.java |  15 ++
 settings.gradle                                    |   1 +
 35 files changed, 816 insertions(+)
 create mode 100644 build.gradle
 create mode 100644 ei/.gitignore
 create mode 100644 ei/build.gradle
 create mode 100644 ei/proguard-rules.pro
 create mode 100644 ei/src/androidTest/java/com/daasuu/ei/ApplicationTest.java
 create mode 100644 ei/src/main/AndroidManifest.xml
 create mode 100644 ei/src/main/java/com/daasuu/ei/Ease.java
 create mode 100644 ei/src/main/java/com/daasuu/ei/EasingInterpolator.java
 create mode 100644 ei/src/main/java/com/daasuu/ei/EasingProvider.java
 create mode 100644 ei/src/main/res/values/strings.xml
 create mode 100644 ei/src/test/java/com/daasuu/ei/ExampleUnitTest.java
 create mode 100644 gradle.properties
 create mode 100644 gradle/wrapper/gradle-wrapper.jar
 create mode 100644 gradle/wrapper/gradle-wrapper.properties
 create mode 100755 gradlew
 create mode 100644 gradlew.bat
 create mode 100644 sample/.gitignore
 create mode 100644 sample/build.gradle
 create mode 100644 sample/proguard-rules.pro
 create mode 100644 sample/src/androidTest/java/com/daasuu/easinginterpolator/ApplicationTest.java
 create mode 100644 sample/src/main/AndroidManifest.xml
 create mode 100644 sample/src/main/java/com/daasuu/easinginterpolator/MainActivity.java
 create mode 100644 sample/src/main/res/layout/activity_main.xml
 create mode 100644 sample/src/main/res/mipmap-hdpi/ic_launcher.png
 create mode 100644 sample/src/main/res/mipmap-mdpi/ic_launcher.png
 create mode 100644 sample/src/main/res/mipmap-xhdpi/ic_launcher.png
 create mode 100644 sample/src/main/res/mipmap-xxhdpi/ic_launcher.png
 create mode 100644 sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png
 create mode 100644 sample/src/main/res/values-w820dp/dimens.xml
 create mode 100644 sample/src/main/res/values/colors.xml
 create mode 100644 sample/src/main/res/values/dimens.xml
 create mode 100644 sample/src/main/res/values/strings.xml
 create mode 100644 sample/src/main/res/values/styles.xml
 create mode 100644 sample/src/test/java/com/daasuu/easinginterpolator/ExampleUnitTest.java
 create mode 100644 settings.gradle

diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..337662e
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,23 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.5.0'
+        classpath 'com.novoda:bintray-release:0.3.4'
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
diff --git a/ei/.gitignore b/ei/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/ei/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/ei/build.gradle b/ei/build.gradle
new file mode 100644
index 0000000..8312671
--- /dev/null
+++ b/ei/build.gradle
@@ -0,0 +1,38 @@
+apply plugin: 'com.android.library'
+apply plugin: 'com.novoda.bintray-release'
+
+android {
+    compileSdkVersion COMPILE_SDK_VERSION as int
+    buildToolsVersion BUILD_TOOLS_VERSION
+
+    defaultConfig {
+        minSdkVersion COMPILE_MIN_SDK_VERSION as int
+        targetSdkVersion COMPILE_SDK_VERSION as int
+        versionCode VERSION_CODE as int
+        versionName VERSION_NAME
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    lintOptions {
+        abortOnError false
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    testCompile 'junit:junit:4.12'
+    compile 'com.android.support:appcompat-v7:23.2.1'
+}
+
+publish {
+    userOrg = USER_ID
+    groupId = GROUP
+    artifactId = ARTIFACT_NAME
+    publishVersion = VERSION_NAME
+    desc = ARTIFACT_DESCRIPTION
+    website = SITE_URL
+}
\ No newline at end of file
diff --git a/ei/proguard-rules.pro b/ei/proguard-rules.pro
new file mode 100644
index 0000000..384d9d2
--- /dev/null
+++ b/ei/proguard-rules.pro
@@ -0,0 +1,17 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/sudamasayuki/Documents/workspace/adt-bundle-mac-x86_64-20140321/sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
diff --git a/ei/src/androidTest/java/com/daasuu/ei/ApplicationTest.java b/ei/src/androidTest/java/com/daasuu/ei/ApplicationTest.java
new file mode 100644
index 0000000..39a33e6
--- /dev/null
+++ b/ei/src/androidTest/java/com/daasuu/ei/ApplicationTest.java
@@ -0,0 +1,13 @@
+package com.daasuu.ei;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest extends ApplicationTestCase<Application> {
+    public ApplicationTest() {
+        super(Application.class);
+    }
+}
\ No newline at end of file
diff --git a/ei/src/main/AndroidManifest.xml b/ei/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..518f79c
--- /dev/null
+++ b/ei/src/main/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.daasuu.ei">
+
+    <application
+        android:allowBackup="true"
+        android:label="@string/app_name"
+        android:supportsRtl="true">
+
+    </application>
+
+</manifest>
diff --git a/ei/src/main/java/com/daasuu/ei/Ease.java b/ei/src/main/java/com/daasuu/ei/Ease.java
new file mode 100644
index 0000000..767b970
--- /dev/null
+++ b/ei/src/main/java/com/daasuu/ei/Ease.java
@@ -0,0 +1,36 @@
+package com.daasuu.ei;
+
+/**
+ * The Easing class provides a collection of ease functions. It does not use the standard 4 param
+ * ease signature. Instead it uses a single param which indicates the current linear ratio (0 to 1) of the tween.
+ */
+public enum Ease {
+    LINEAR,
+    QUAD_IN,
+    QUAD_OUT,
+    QUAD_IN_OUT,
+    CUBIC_IN,
+    CUBIC_OUT,
+    CUBIC_IN_OUT,
+    QUART_IN,
+    QUART_OUT,
+    QUART_IN_OUT,
+    QUINT_IN,
+    QUINT_OUT,
+    QUINT_IN_OUT,
+    SINE_IN,
+    SINE_OUT,
+    SINE_IN_OUT,
+    BACK_IN,
+    BACK_OUT,
+    BACK_IN_OUT,
+    CIRC_IN,
+    CIRC_OUT,
+    CIRC_IN_OUT,
+    BOUNCE_IN,
+    BOUNCE_OUT,
+    BOUNCE_IN_OUT,
+    ELASTIC_IN,
+    ELASTIC_OUT,
+    ELASTIC_IN_OUT
+}
diff --git a/ei/src/main/java/com/daasuu/ei/EasingInterpolator.java b/ei/src/main/java/com/daasuu/ei/EasingInterpolator.java
new file mode 100644
index 0000000..283aec7
--- /dev/null
+++ b/ei/src/main/java/com/daasuu/ei/EasingInterpolator.java
@@ -0,0 +1,22 @@
+package com.daasuu.ei;
+
+import android.animation.TimeInterpolator;
+import android.support.annotation.NonNull;
+
+/**
+ * The Easing class provides a collection of ease functions. It does not use the standard 4 param
+ * ease signature. Instead it uses a single param which indicates the current linear ratio (0 to 1) of the tween.
+ */
+public class EasingInterpolator implements TimeInterpolator {
+
+    private final Ease ease;
+
+    public EasingInterpolator(@NonNull Ease ease) {
+        this.ease = ease;
+    }
+
+    @Override
+    public float getInterpolation(float input) {
+        return EasingProvider.get(this.ease, input);
+    }
+}
diff --git a/ei/src/main/java/com/daasuu/ei/EasingProvider.java b/ei/src/main/java/com/daasuu/ei/EasingProvider.java
new file mode 100644
index 0000000..cdcfbf6
--- /dev/null
+++ b/ei/src/main/java/com/daasuu/ei/EasingProvider.java
@@ -0,0 +1,200 @@
+package com.daasuu.ei;
+
+import android.support.annotation.NonNull;
+
+/**
+ * The Easing class provides a collection of ease functions. It does not use the standard 4 param
+ * ease signature. Instead it uses a single param which indicates the current linear ratio (0 to 1) of the tween.
+ */
+class EasingProvider {
+    /**
+     * @param ease            Easing type
+     * @param elapsedTimeRate Elapsed time / Total time
+     * @return easedValue
+     */
+    public static float get(@NonNull Ease ease, float elapsedTimeRate) {
+        switch (ease) {
+            case LINEAR:
+                return 1f;
+            case QUAD_IN:
+                return getPowIn(elapsedTimeRate, 2);
+            case QUAD_OUT:
+                return getPowOut(elapsedTimeRate, 2);
+            case QUAD_IN_OUT:
+                return getPowInOut(elapsedTimeRate, 2);
+            case CUBIC_IN:
+                return getPowIn(elapsedTimeRate, 3);
+            case CUBIC_OUT:
+                return getPowOut(elapsedTimeRate, 3);
+            case CUBIC_IN_OUT:
+                return getPowInOut(elapsedTimeRate, 3);
+            case QUART_IN:
+                return getPowIn(elapsedTimeRate, 4);
+            case QUART_OUT:
+                return getPowOut(elapsedTimeRate, 4);
+            case QUART_IN_OUT:
+                return getPowInOut(elapsedTimeRate, 4);
+            case QUINT_IN:
+                return getPowIn(elapsedTimeRate, 5);
+            case QUINT_OUT:
+                return getPowOut(elapsedTimeRate, 5);
+            case QUINT_IN_OUT:
+                return getPowInOut(elapsedTimeRate, 5);
+            case SINE_IN:
+                return (float) (1f - Math.cos(elapsedTimeRate * Math.PI / 2f));
+            case SINE_OUT:
+                return (float) Math.sin(elapsedTimeRate * Math.PI / 2f);
+            case SINE_IN_OUT:
+                return (float) (-0.5f * (Math.cos(Math.PI * elapsedTimeRate) - 1f));
+            case BACK_IN:
+                return (float) (elapsedTimeRate * elapsedTimeRate * ((1.7 + 1f) * elapsedTimeRate - 1.7));
+            case BACK_OUT:
+                return (float) (--elapsedTimeRate * elapsedTimeRate * ((1.7 + 1f) * elapsedTimeRate + 1.7) + 1f);
+            case BACK_IN_OUT:
+                return getBackInOut(elapsedTimeRate, 1.7f);
+            case CIRC_IN:
+                return (float) -(Math.sqrt(1f - elapsedTimeRate * elapsedTimeRate) - 1);
+            case CIRC_OUT:
+                return (float) Math.sqrt(1f - (--elapsedTimeRate) * elapsedTimeRate);
+            case CIRC_IN_OUT:
+                if ((elapsedTimeRate *= 2f) < 1f) {
+                    return (float) (-0.5f * (Math.sqrt(1f - elapsedTimeRate * elapsedTimeRate) - 1f));
+                }
+                return (float) (0.5f * (Math.sqrt(1f - (elapsedTimeRate -= 2f) * elapsedTimeRate) + 1f));
+            case BOUNCE_IN:
+                return getBounceIn(elapsedTimeRate);
+            case BOUNCE_OUT:
+                return getBounceOut(elapsedTimeRate);
+            case BOUNCE_IN_OUT:
+                if (elapsedTimeRate < 0.5f) {
+                    return getBounceIn(elapsedTimeRate * 2f) * 0.5f;
+                }
+                return getBounceOut(elapsedTimeRate * 2f - 1f) * 0.5f + 0.5f;
+            case ELASTIC_IN:
+                return getElasticIn(elapsedTimeRate, 1, 0.3);
+
+            case ELASTIC_OUT:
+                return getElasticOut(elapsedTimeRate, 1, 0.3);
+
+            case ELASTIC_IN_OUT:
+                return getElasticInOut(elapsedTimeRate, 1, 0.45);
+
+            default:
+                return 1f;
+
+        }
+
+    }
+
+    /**
+     * @param elapsedTimeRate Elapsed time / Total time
+     * @param pow             pow The exponent to use (ex. 3 would return a cubic ease).
+     * @return easedValue
+     */
+    private static float getPowIn(float elapsedTimeRate, double pow) {
+        return (float) Math.pow(elapsedTimeRate, pow);
+    }
+
+    /**
+     * @param elapsedTimeRate Elapsed time / Total time
+     * @param pow             pow The exponent to use (ex. 3 would return a cubic ease).
+     * @return easedValue
+     */
+    private static float getPowOut(float elapsedTimeRate, double pow) {
+        return (float) ((float) 1 - Math.pow(1 - elapsedTimeRate, pow));
+    }
+
+    /**
+     * @param elapsedTimeRate Elapsed time / Total time
+     * @param pow             pow The exponent to use (ex. 3 would return a cubic ease).
+     * @return easedValue
+     */
+    private static float getPowInOut(float elapsedTimeRate, double pow) {
+        if ((elapsedTimeRate *= 2) < 1) {
+            return (float) (0.5 * Math.pow(elapsedTimeRate, pow));
+        }
+
+        return (float) (1 - 0.5 * Math.abs(Math.pow(2 - elapsedTimeRate, pow)));
+    }
+
+    /**
+     * @param elapsedTimeRate Elapsed time / Total time
+     * @param amount          amount The strength of the ease.
+     * @return easedValue
+     */
+    private static float getBackInOut(float elapsedTimeRate, float amount) {
+        amount *= 1.525;
+        if ((elapsedTimeRate *= 2) < 1) {
+            return (float) (0.5 * (elapsedTimeRate * elapsedTimeRate * ((amount + 1) * elapsedTimeRate - amount)));
+        }
+        return (float) (0.5 * ((elapsedTimeRate -= 2) * elapsedTimeRate * ((amount + 1) * elapsedTimeRate + amount) + 2));
+    }
+
+    /**
+     * @param elapsedTimeRate Elapsed time / Total time
+     * @return easedValue
+     */
+    private static float getBounceIn(float elapsedTimeRate) {
+        return 1f - getBounceOut(1f - elapsedTimeRate);
+    }
+
+    /**
+     * @param elapsedTimeRate Elapsed time / Total time
+     * @return easedValue
+     */
+    private static float getBounceOut(float elapsedTimeRate) {
+        if (elapsedTimeRate < 1 / 2.75) {
+            return (float) (7.5625 * elapsedTimeRate * elapsedTimeRate);
+        } else if (elapsedTimeRate < 2 / 2.75) {
+            return (float) (7.5625 * (elapsedTimeRate -= 1.5 / 2.75) * elapsedTimeRate + 0.75);
+        } else if (elapsedTimeRate < 2.5 / 2.75) {
+            return (float) (7.5625 * (elapsedTimeRate -= 2.25 / 2.75) * elapsedTimeRate + 0.9375);
+        } else {
+            return (float) (7.5625 * (elapsedTimeRate -= 2.625 / 2.75) * elapsedTimeRate + 0.984375);
+        }
+    }
+
+    /**
+     * @param elapsedTimeRate Elapsed time / Total time
+     * @param amplitude       Amplitude of easing
+     * @param period          Animation of period
+     * @return easedValue
+     */
+    private static float getElasticIn(float elapsedTimeRate, double amplitude, double period) {
+        if (elapsedTimeRate == 0 || elapsedTimeRate == 1) return elapsedTimeRate;
+        double pi2 = Math.PI * 2;
+        double s = period / pi2 * Math.asin(1 / amplitude);
+        return (float) -(amplitude * Math.pow(2f, 10f * (elapsedTimeRate -= 1f)) * Math.sin((elapsedTimeRate - s) * pi2 / period));
+    }
+
+    /**
+     * @param elapsedTimeRate Elapsed time / Total time
+     * @param amplitude       Amplitude of easing
+     * @param period          Animation of period
+     * @return easedValue
+     */
+    private static float getElasticOut(float elapsedTimeRate, double amplitude, double period) {
+        if (elapsedTimeRate == 0 || elapsedTimeRate == 1) return elapsedTimeRate;
+
+        double pi2 = Math.PI * 2;
+        double s = period / pi2 * Math.asin(1 / amplitude);
+        return (float) (amplitude * Math.pow(2, -10 * elapsedTimeRate) * Math.sin((elapsedTimeRate - s) * pi2 / period) + 1);
+    }
+
+    /**
+     * @param elapsedTimeRate Elapsed time / Total time
+     * @param amplitude       Amplitude of easing
+     * @param period          Animation of period
+     * @return easedValue
+     */
+    private static float getElasticInOut(float elapsedTimeRate, double amplitude, double period) {
+        double pi2 = Math.PI * 2;
+
+        double s = period / pi2 * Math.asin(1 / amplitude);
+        if ((elapsedTimeRate *= 2) < 1) {
+            return (float) (-0.5f * (amplitude * Math.pow(2, 10 * (elapsedTimeRate -= 1f)) * Math.sin((elapsedTimeRate - s) * pi2 / period)));
+        }
+        return (float) (amplitude * Math.pow(2, -10 * (elapsedTimeRate -= 1)) * Math.sin((elapsedTimeRate - s) * pi2 / period) * 0.5 + 1);
+
+    }
+}
diff --git a/ei/src/main/res/values/strings.xml b/ei/src/main/res/values/strings.xml
new file mode 100644
index 0000000..e6d9986
--- /dev/null
+++ b/ei/src/main/res/values/strings.xml
@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">Ei</string>
+</resources>
diff --git a/ei/src/test/java/com/daasuu/ei/ExampleUnitTest.java b/ei/src/test/java/com/daasuu/ei/ExampleUnitTest.java
new file mode 100644
index 0000000..346aa84
--- /dev/null
+++ b/ei/src/test/java/com/daasuu/ei/ExampleUnitTest.java
@@ -0,0 +1,15 @@
+package com.daasuu.ei;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * To work on unit tests, switch the Test Artifact in the Build Variants view.
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..ae899e6
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,11 @@
+VERSION_NAME=0.1.0
+VERSION_CODE=1
+BUILD_TOOLS_VERSION=23.0.2
+COMPILE_SDK_VERSION=23
+COMPILE_MIN_SDK_VERSION=14
+
+USER_ID=masayukisuda
+GROUP=com.daasuu
+ARTIFACT_NAME=EasingInterpolator
+ARTIFACT_DESCRIPTION=Twenty-seven different easing animation interpolators for Android.
+SITE_URL=https://github.com/MasayukiSuda/EasingInterpolator
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000000000000000000000000000000000..05ef575b0cd0173fc735f2857ce4bd594ce4f6bd
GIT binary patch
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..f23df6e
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Oct 21 11:34:03 PDT 2015
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.8-all.zip
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..9d82f78
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/sample/.gitignore b/sample/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/sample/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/sample/build.gradle b/sample/build.gradle
new file mode 100644
index 0000000..9cdf099
--- /dev/null
+++ b/sample/build.gradle
@@ -0,0 +1,27 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion "23.0.2"
+
+    defaultConfig {
+        applicationId "com.daasuu.easinginterpolator"
+        minSdkVersion 14
+        targetSdkVersion 23
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    testCompile 'junit:junit:4.12'
+    compile 'com.android.support:appcompat-v7:23.2.1'
+    compile project(':ei')
+}
diff --git a/sample/proguard-rules.pro b/sample/proguard-rules.pro
new file mode 100644
index 0000000..384d9d2
--- /dev/null
+++ b/sample/proguard-rules.pro
@@ -0,0 +1,17 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/sudamasayuki/Documents/workspace/adt-bundle-mac-x86_64-20140321/sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
diff --git a/sample/src/androidTest/java/com/daasuu/easinginterpolator/ApplicationTest.java b/sample/src/androidTest/java/com/daasuu/easinginterpolator/ApplicationTest.java
new file mode 100644
index 0000000..4a3f816
--- /dev/null
+++ b/sample/src/androidTest/java/com/daasuu/easinginterpolator/ApplicationTest.java
@@ -0,0 +1,13 @@
+package com.daasuu.easinginterpolator;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest extends ApplicationTestCase<Application> {
+    public ApplicationTest() {
+        super(Application.class);
+    }
+}
\ No newline at end of file
diff --git a/sample/src/main/AndroidManifest.xml b/sample/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..f4476c8
--- /dev/null
+++ b/sample/src/main/AndroidManifest.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.daasuu.easinginterpolator">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
diff --git a/sample/src/main/java/com/daasuu/easinginterpolator/MainActivity.java b/sample/src/main/java/com/daasuu/easinginterpolator/MainActivity.java
new file mode 100644
index 0000000..99c5128
--- /dev/null
+++ b/sample/src/main/java/com/daasuu/easinginterpolator/MainActivity.java
@@ -0,0 +1,28 @@
+package com.daasuu.easinginterpolator;
+
+import android.animation.ObjectAnimator;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.widget.TextView;
+
+import com.daasuu.ei.Ease;
+import com.daasuu.ei.EasingInterpolator;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        TextView textView = (TextView) findViewById(R.id.txt_hello);
+
+        ObjectAnimator animator = ObjectAnimator.ofFloat(
+                textView, "translationX", 0, 600);
+
+        animator.setDuration(2000)
+                .setInterpolator(new EasingInterpolator(Ease.ELASTIC_IN_OUT));
+        animator.start();
+
+    }
+}
diff --git a/sample/src/main/res/layout/activity_main.xml b/sample/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..dfce48a
--- /dev/null
+++ b/sample/src/main/res/layout/activity_main.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    tools:context="com.daasuu.easinginterpolator.MainActivity">
+
+    <TextView
+        android:id="@+id/txt_hello"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!" />
+</RelativeLayout>
diff --git a/sample/src/main/res/mipmap-hdpi/ic_launcher.png b/sample/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000000000000000000000000000000000000..cde69bcccec65160d92116f20ffce4fce0b5245c
GIT binary patch
diff --git a/sample/src/main/res/mipmap-mdpi/ic_launcher.png b/sample/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000000000000000000000000000000000000..c133a0cbd379f5af6dbf1a899a0293ca5eccfad0
GIT binary patch
diff --git a/sample/src/main/res/mipmap-xhdpi/ic_launcher.png b/sample/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000000000000000000000000000000000000..bfa42f0e7b91d006d22352c9ff2f134e504e3c1d
GIT binary patch
diff --git a/sample/src/main/res/mipmap-xxhdpi/ic_launcher.png b/sample/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000000000000000000000000000000000000..324e72cdd7480cb983fa1bcc7ce686e51ef87fe7
GIT binary patch
diff --git a/sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000000000000000000000000000000000000..aee44e138434630332d88b1680f33c4b24c70ab3
GIT binary patch
diff --git a/sample/src/main/res/values-w820dp/dimens.xml b/sample/src/main/res/values-w820dp/dimens.xml
new file mode 100644
index 0000000..63fc816
--- /dev/null
+++ b/sample/src/main/res/values-w820dp/dimens.xml
@@ -0,0 +1,6 @@
+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>
diff --git a/sample/src/main/res/values/colors.xml b/sample/src/main/res/values/colors.xml
new file mode 100644
index 0000000..3ab3e9c
--- /dev/null
+++ b/sample/src/main/res/values/colors.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>
diff --git a/sample/src/main/res/values/dimens.xml b/sample/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..47c8224
--- /dev/null
+++ b/sample/src/main/res/values/dimens.xml
@@ -0,0 +1,5 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>
diff --git a/sample/src/main/res/values/strings.xml b/sample/src/main/res/values/strings.xml
new file mode 100644
index 0000000..a14901c
--- /dev/null
+++ b/sample/src/main/res/values/strings.xml
@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">EasingInterpolator</string>
+</resources>
diff --git a/sample/src/main/res/values/styles.xml b/sample/src/main/res/values/styles.xml
new file mode 100644
index 0000000..5885930
--- /dev/null
+++ b/sample/src/main/res/values/styles.xml
@@ -0,0 +1,11 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>
diff --git a/sample/src/test/java/com/daasuu/easinginterpolator/ExampleUnitTest.java b/sample/src/test/java/com/daasuu/easinginterpolator/ExampleUnitTest.java
new file mode 100644
index 0000000..fc5e9b3
--- /dev/null
+++ b/sample/src/test/java/com/daasuu/easinginterpolator/ExampleUnitTest.java
@@ -0,0 +1,15 @@
+package com.daasuu.easinginterpolator;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * To work on unit tests, switch the Test Artifact in the Build Variants view.
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}
\ No newline at end of file
diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..0725fd3
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1 @@
+include ':sample', ':ei'
