Turn this widget into an Android library step 1.

app/build.gradle

@@ -4,7 +4,7 @@ android {
     compileSdkVersion 24
     buildToolsVersion "24.0.2"
     defaultConfig {
-        applicationId "net.liutikas.stepperwidget"
+        applicationId "net.liutikas.widget.example"
         minSdkVersion 9
         targetSdkVersion 24
         versionCode 1
@@ -25,5 +25,6 @@ dependencies {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
     compile 'com.android.support:appcompat-v7:24.2.1'
+    compile project(":stepperwidget")
     testCompile 'junit:junit:4.12'
 }

app/src/androidTest/java/net/liutikas/stepperwidget/ExampleInstrumentedTest.java

@@ -1,4 +1,4 @@
-package net.liutikas.stepperwidget;
+package net.liutikas.example;
 
 import android.content.Context;
 import android.support.test.InstrumentationRegistry;

app/src/main/AndroidManifest.xml

@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="net.liutikas.stepperwidget">
+    package="net.liutikas.widget.example">
 
     <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">
+        <activity android:name="net.liutikas.widget.example.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

app/src/main/java/net/liutikas/stepperwidget/MainActivity.java → app/src/main/java/net/liutikas/widget/example/MainActivity.java

@@ -1,7 +1,7 @@
-package net.liutikas.stepperwidget;
+package net.liutikas.widget.example;
 
-import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
 
 public class MainActivity extends AppCompatActivity {
 

app/src/main/res/layout/activity_main.xml

@@ -8,8 +8,8 @@
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingTop="@dimen/activity_vertical_margin"
-    tools:context="net.liutikas.stepperwidget.MainActivity">
-    <net.liutikas.stepperwidget.StepperWidget
+    tools:context="net.liutikas.example.net.liutikas.widget.example.MainActivity">
+    <net.liutikas.widget.StepperWidget
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"/>
 </RelativeLayout>

app/src/test/java/net/liutikas/stepperwidget/ExampleUnitTest.java

@@ -1,4 +1,4 @@
-package net.liutikas.stepperwidget;
+package net.liutikas.example;
 
 import org.junit.Test;
 

settings.gradle

@@ -1 +1 @@
-include ':app'
+include ':app', ':stepperwidget'

stepperwidget/.gitignore

@@ -0,0 +1 @@
+/build

stepperwidget/build.gradle

@@ -0,0 +1,31 @@
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 24
+    buildToolsVersion "24.0.2"
+
+    defaultConfig {
+        minSdkVersion 9
+        targetSdkVersion 24
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    compile 'com.android.support:appcompat-v7:24.2.1'
+    testCompile 'junit:junit:4.12'
+}

stepperwidget/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/aurimas/Library/Android/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 *;
+#}

stepperwidget/src/androidTest/java/net/liutikas/widget/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package net.liutikas.widget;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumentation test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("net.liutikas.widget.test", appContext.getPackageName());
+    }
+}

stepperwidget/src/main/AndroidManifest.xml

@@ -0,0 +1,8 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="net.liutikas.widget">
+
+    <application android:allowBackup="true" android:label="@string/app_name"
+        android:supportsRtl="true">
+
+    </application>
+
+</manifest>

app/src/main/java/net/liutikas/stepperwidget/StepperWidget.java → stepperwidget/src/main/java/net/liutikas/widget/StepperWidget.java

@@ -1,4 +1,4 @@
-package net.liutikas.stepperwidget;
+package net.liutikas.widget;
 
 import android.animation.Animator;
 import android.animation.ValueAnimator;

stepperwidget/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">StepperWidget</string>
+</resources>

stepperwidget/src/test/java/net/liutikas/widget/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package net.liutikas.widget;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}