Android

1. Enter the android folder in home directory of the RN app
2. Copy the latest .aar version of the Usabilla SDK in the path app/libs/
3. Change the Gradle wrapper to be at least 4.1-all in gradle-wrapper.properties
4. Replace the original Project-level build.gradle file with this

   buildscript {
       ext.kotlin_version = '1.2.10'
       repositories {
           jcenter()
           google()
       }
       dependencies {
           classpath 'com.android.tools.build:gradle:3.0.1'
           classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
       }
   }
   
   allprojects {
       repositories {
           mavenLocal()
           jcenter()
           maven {
               // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
               url "$rootDir/../node_modules/react-native/android"
           }
           google()
       }
   }

5. Add the following to the App-level build.gradle file

   apply plugin: 'kotlin-android'
      
   ...
      
   implementation fileTree(dir: "libs", include: ["*.aar"])
   implementation "com.android.support:appcompat-v7:26.1.0"
   implementation 'com.mcxiaoke.volley:library:1.0.19'
   implementation "com.facebook.react:react-native:0.52.0"
   implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
   implementation 'com.android.support.test.espresso:espresso-idling-resource:3.0.1'

6. Create a class called UsabillaBridge.kt which will host all the methods bridging from React Native to Java/Kotlin, such as

   class BridgeModule(reactContext: ReactApplicationContext) : ReactContextBaseJavaModule(reactContext) {
   
       override fun getName() = "UsabillaBridge"
   
       @ReactMethod
       fun initialize(appId: String) {
           currentActivity?.let {
               Usabilla.initialize(it.baseContext, appId)
               Toast.makeText(it.baseContext, "SDK initialised with AppId $appId", Toast.LENGTH_SHORT).show()
           }
       }
          
       // Other methods
   }

7. Create a class called BridgePackage.kt to be able to reference the previous class from React Native, such as

   class BridgePackage : ReactPackage {
   
       override fun createNativeModules(reactContext: ReactApplicationContext): MutableList<NativeModule> =
               mutableListOf(UsabillaBridge(reactContext))
   
       override fun createViewManagers(reactContext: ReactApplicationContext?): MutableList<ViewManager<View, ReactShadowNode<*>>> =
               Collections.emptyList()
   }

8. In MainApplication.kt (or its java version) add the BridgePackage to the method getPackages()
9. Run the app either opening the project in the android folder with AndroidStudio, or via command line typing react-native run-android from within the RN folder
10. Add the following to App.js

    import { NativeModules } from 'react-native';

11. You should be able to call a method in the UsabillaBridge.kt from the RN app with

    NativeModules.UsabillaBridge.initialize('5a37c12145380769f373d71b');