List of changes to make to a react-native package to correctly link react-viro.

android_setup.diff

diff --git a/android/app/build.gradle b/android/app/build.gradle
index 72ae42a..cbac9d3 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -94,13 +94,15 @@ def enableSeparateBuildPerCPUArchitecture = false
 def enableProguardInReleaseBuilds = false
 
 android {
-    compileSdkVersion rootProject.ext.compileSdkVersion
-    buildToolsVersion rootProject.ext.buildToolsVersion
+    compileSdkVersion 28
+    buildToolsVersion '28.0.3'
+    flavorDimensions "platform"
 
     defaultConfig {
         applicationId "com.virosample"
-        minSdkVersion rootProject.ext.minSdkVersion
-        targetSdkVersion rootProject.ext.targetSdkVersion
+        minSdkVersion 23
+        targetSdkVersion 28
+        multiDexEnabled true
         versionCode 1
         versionName "1.0"
         ndk {
@@ -115,6 +117,21 @@ android {
             include "armeabi-v7a", "x86"
         }
     }
+    productFlavors {
+        ar {
+            resValue 'string', 'app_name', 'ViroSample-ar'
+            buildConfigField 'String', 'VR_PLATFORM', '"GVR"' //default to GVR
+        }
+        gvr {
+            resValue 'string', 'app_name', 'ViroSample-gvr'
+            buildConfigField 'String', 'VR_PLATFORM', '"GVR"'
+        }
+        ovr {
+            resValue 'string', 'app_name', 'ViroSample-ovr'
+            applicationIdSuffix '.ovr'
+            buildConfigField 'String', 'VR_PLATFORM', '"OVR_MOBILE"'
+        }
+    }
     buildTypes {
         release {
             minifyEnabled enableProguardInReleaseBuilds
@@ -137,9 +154,20 @@ android {
 }
 
 dependencies {
-    implementation fileTree(dir: "libs", include: ["*.jar"])
-    implementation "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
-    implementation "com.facebook.react:react-native:+"  // From node_modules
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.facebook.react:react-native:+'
+    implementation project(':arcore_client') // remove this if AR not required
+    implementation project(':gvr_common')
+    implementation project(path: ':viro_renderer')
+    implementation project(path: ':react_viro')
+    implementation 'com.google.android.exoplayer:exoplayer:2.7.1'
+    implementation 'com.google.protobuf.nano:protobuf-javanano:3.0.0-alpha-7'
+    implementation 'com.amazonaws:aws-android-sdk-core:2.7.7'
+    implementation 'com.amazonaws:aws-android-sdk-ddb:2.7.7'
+    implementation 'com.amazonaws:aws-android-sdk-ddb-mapper:2.7.7'
+    implementation 'com.amazonaws:aws-android-sdk-cognito:2.7.7'
+    implementation 'com.amazonaws:aws-android-sdk-cognitoidentityprovider:2.7.7'
 }
 
 // Run this once to be able to run the application with BUCK
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index ef8e4af..0234277 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -3,24 +3,28 @@
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
+    <uses-permission android:name="android.permission.CAMERA" />
 
     <application
       android:name=".MainApplication"
       android:label="@string/app_name"
       android:icon="@mipmap/ic_launcher"
       android:allowBackup="false"
+      android:usesCleartextTraffic="true"
       android:theme="@style/AppTheme">
       <activity
         android:name=".MainActivity"
         android:label="@string/app_name"
-        android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
+        android:configChanges="keyboard|keyboardHidden|orientation|screenSize|uiMode"
         android:windowSoftInputMode="adjustResize">
         <intent-filter>
             <action android:name="android.intent.action.MAIN" />
             <category android:name="android.intent.category.LAUNCHER" />
+            <category android:name="com.google.intent.category.CARDBOARD" />
         </intent-filter>
       </activity>
       <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
+      <meta-data android:name="com.google.ar.core" android:value="optional" />
     </application>
 
 </manifest>
diff --git a/android/app/src/main/java/com/virosample/MainApplication.java b/android/app/src/main/java/com/virosample/MainApplication.java
index 2e279a8..deaecae 100644
--- a/android/app/src/main/java/com/virosample/MainApplication.java
+++ b/android/app/src/main/java/com/virosample/MainApplication.java
@@ -6,6 +6,8 @@ import com.facebook.react.ReactApplication;
 import com.facebook.react.ReactNativeHost;
 import com.facebook.react.ReactPackage;
 import com.facebook.react.shell.MainReactPackage;
+
+import com.viromedia.bridge.ReactViroPackage;
 import com.facebook.soloader.SoLoader;
 
 import java.util.Arrays;
@@ -22,7 +24,8 @@ public class MainApplication extends Application implements ReactApplication {
     @Override
     protected List<ReactPackage> getPackages() {
       return Arrays.<ReactPackage>asList(
-          new MainReactPackage()
+          new MainReactPackage(),
+          new ReactViroPackage(ReactViroPackage.ViroPlatform.valueOf(BuildConfig.VR_PLATFORM))
       );
     }
 
diff --git a/android/app/src/main/res/values/strings.xml b/android/app/src/main/res/values/strings.xml
index 5755f2a..8542005 100644
--- a/android/app/src/main/res/values/strings.xml
+++ b/android/app/src/main/res/values/strings.xml
@@ -1,3 +1,2 @@
 <resources>
-    <string name="app_name">ViroSample</string>
 </resources>
diff --git a/android/build.gradle b/android/build.gradle
index a1e8085..c3ca947 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,19 +1,12 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext {
-        buildToolsVersion = "27.0.3"
-        minSdkVersion = 16
-        compileSdkVersion = 27
-        targetSdkVersion = 26
-        supportLibVersion = "27.1.1"
-    }
     repositories {
         google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.4'
+        classpath 'com.android.tools.build:gradle:3.2.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -23,6 +16,9 @@ buildscript {
 allprojects {
     repositories {
         mavenLocal()
+        maven {
+            url 'https://maven.google.com/'
+        }
         google()
         jcenter()
         maven {
@@ -34,6 +30,6 @@ allprojects {
 
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '4.4'
+    gradleVersion = '4.6'
     distributionUrl = distributionUrl.replace("bin", "all")
 }
diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties
index b6517bb..3f0f9be 100644
--- a/android/gradle/wrapper/gradle-wrapper.properties
+++ b/android/gradle/wrapper/gradle-wrapper.properties
@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/android/settings.gradle b/android/settings.gradle
index e646b99..5255fa5 100644
--- a/android/settings.gradle
+++ b/android/settings.gradle
@@ -1,3 +1,8 @@
 rootProject.name = 'ViroSample'
 
 include ':app'
+include ':react_viro', ':arcore_client', ':gvr_common', ':viro_renderer'
+project(':arcore_client').projectDir = new File('../node_modules/react-viro/android/arcore_client')
+project(':gvr_common').projectDir = new File('../node_modules/react-viro/android/gvr_common')
+project(':viro_renderer').projectDir = new File('../node_modules/react-viro/android/viro_renderer')
+project(':react_viro').projectDir = new File('../node_modules/react-viro/android/react_viro')

AndroidManifest.xml

<!-- Add this AndroidManifest.xml file at ViroSample/android/app/src/ovr/ only
 if you are building a VR app for Samsung GearVR-->
<manifest xmlns:android="http://schemas.android.com/apk/res/android">

    <application>
        <meta-data
            android:name="com.samsung.android.vr.application.mode"
            android:value="vr_only"/>
    </application>

</manifest>

Getting this error after running ./gradlew installArDebug

Execution failed for task ':app:generateArDebugBuildConfig'.
> org.xml.sax.SAXParseException; systemId: file:/D:/Projects/ReactNative/ARDemo/ARDemo/android/app/src/main/AndroidManifest.xml; lineNumber: 26; columnNumber: 39; 

Attribute "usesCleartextTraffic" bound to namespace "http://schemas.android.com/apk/res/android" was already specified for element "application"