updated android/osx project and example project structure

integrations/android/example_app/app/src/androidTest/java/com/example/joseph/example_android_app/ExampleInstrumentationTest.java

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+package com.example.joseph.example_android_app;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.filters.MediumTest;
+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>
+ */
+@MediumTest
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentationTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.example.joseph.example_android_app", appContext.getPackageName());
+    }
+}

integrations/android/example_app/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.joseph.example_android_app">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+
+        <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+        <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+        <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>

integrations/android/example_app/app/src/main/java/ZeroTierSDK/ZeroTierSDK/ZeroTierSDK.java

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+package ZeroTierSDK.ZeroTierSDK;
+public class ZeroTierSDK {
+    public native void startOneService();
+    static { System.loadLibrary("ZeroTierOneJNI"); } // Loads JNI code
+}

integrations/android/example_app/app/src/main/java/com/example/joseph/example_android_app/MainActivity.java

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+package com.example.joseph.example_android_app;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        new Thread(new Runnable() {
+            public void run() {
+                ZeroTierSDK wrapper = new ZeroTierSDK();
+                wrapper.startOneService(); // Calls to JNI code
+            }
+        }).start();
+
+    }
+}

integrations/android/example_app/app/src/main/res/layout/activity_main.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/activity_main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="com.example.joseph.example_android_app.MainActivity">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!"
+        app:layout_constraintBottom_toBottomOf="@+id/activity_main"
+        app:layout_constraintLeft_toLeftOf="@+id/activity_main"
+        app:layout_constraintRight_toRightOf="@+id/activity_main"
+        app:layout_constraintTop_toTopOf="@+id/activity_main" />
+
+</android.support.constraint.ConstraintLayout>

integrations/android/example_app/app/src/main/res/values-w820dp/dimens.xml

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+<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>

integrations/android/example_app/app/src/main/res/values/colors.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

integrations/android/example_app/app/src/main/res/values/dimens.xml

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+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>

integrations/android/example_app/app/src/main/res/values/strings.xml

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+<resources>
+    <string name="app_name">Example_Android_App</string>
+</resources>

integrations/android/example_app/app/src/main/res/values/styles.xml

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+<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>

integrations/android/example_app/app/src/test/java/com/example/joseph/example_android_app/ExampleUnitTest.java

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+package com.example.joseph.example_android_app;
+
+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);
+    }
+}