diff --git a/app/.gitignore b/app/.gitignore
deleted file mode 100644
index 796b96d..0000000
--- a/app/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/build
diff --git a/app/build.gradle b/app/build.gradle
deleted file mode 100644
index 0f27ff0..0000000
--- a/app/build.gradle
+++ /dev/null
@@ -1,26 +0,0 @@
-apply plugin: 'com.android.application'
-
-android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.3"
-
-    defaultConfig {
-        applicationId "com.spinytech.spinymap"
-        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-v7:23.4.0'
-}
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
deleted file mode 100644
index 9f567a9..0000000
--- a/app/proguard-rules.pro
+++ /dev/null
@@ -1,17 +0,0 @@
-# Add project specific ProGuard rules here.
-# By default, the flags in this file are appended to flags specified
-# in /Users/wanglei/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 *;
-#}
diff --git a/app/src/androidTest/java/com/spinytech/spinymap/ApplicationTest.java b/app/src/androidTest/java/com/spinytech/spinymap/ApplicationTest.java
deleted file mode 100644
index a6292e2..0000000
--- a/app/src/androidTest/java/com/spinytech/spinymap/ApplicationTest.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.spinytech.spinymap;
-
-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/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
deleted file mode 100644
index b058623..0000000
--- a/app/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.spinytech.spinymap">
-
-    <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>
\ No newline at end of file
diff --git a/app/src/main/java/com/spinytech/spinymap/MainActivity.java b/app/src/main/java/com/spinytech/spinymap/MainActivity.java
deleted file mode 100644
index 13289cb..0000000
--- a/app/src/main/java/com/spinytech/spinymap/MainActivity.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.spinytech.spinymap;
-
-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);
-    }
-}
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
deleted file mode 100644
index 5778a65..0000000
--- a/app/src/main/res/layout/activity_main.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?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.spinytech.spinymap.MainActivity">
-
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!" />
-</RelativeLayout>
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.png b/app/src/main/res/mipmap-hdpi/ic_launcher.png
deleted file mode 100644
index cde69bc..0000000
Binary files a/app/src/main/res/mipmap-hdpi/ic_launcher.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher.png b/app/src/main/res/mipmap-mdpi/ic_launcher.png
deleted file mode 100644
index c133a0c..0000000
Binary files a/app/src/main/res/mipmap-mdpi/ic_launcher.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
deleted file mode 100644
index bfa42f0..0000000
Binary files a/app/src/main/res/mipmap-xhdpi/ic_launcher.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
deleted file mode 100644
index 324e72c..0000000
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
deleted file mode 100644
index aee44e1..0000000
Binary files a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png and /dev/null differ
diff --git a/app/src/main/res/values-w820dp/dimens.xml b/app/src/main/res/values-w820dp/dimens.xml
deleted file mode 100644
index 63fc816..0000000
--- a/app/src/main/res/values-w820dp/dimens.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<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/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
deleted file mode 100644
index 3ab3e9c..0000000
--- a/app/src/main/res/values/colors.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?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/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
deleted file mode 100644
index 47c8224..0000000
--- a/app/src/main/res/values/dimens.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<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/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
deleted file mode 100644
index 6cd6084..0000000
--- a/app/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-    <string name="app_name">SpinyMap</string>
-</resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
deleted file mode 100644
index 5885930..0000000
--- a/app/src/main/res/values/styles.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<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/app/src/test/java/com/spinytech/spinymap/ExampleUnitTest.java b/app/src/test/java/com/spinytech/spinymap/ExampleUnitTest.java
deleted file mode 100644
index bdf5142..0000000
--- a/app/src/test/java/com/spinytech/spinymap/ExampleUnitTest.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.spinytech.spinymap;
-
-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