How to Use Kotlin in an Existing Android App?

Question

I have an Android App developed using Java. I now want to start using Kotlin for the same app. Is it possible to use Kotlin and Java side-by-side in an existing app?

Answer 1

To enable Kotlin into your existing Android project. Follow these steps:-

1. Application-level build file:- Add

   apply plugin: 'kotlin-android'

   apply plugin: 'kotlin-android-extensions'

   Add In dependency:- implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"

2. Project Level build File:-

   dependencies {
       classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
       // NOTE: Do not place your application dependencies here; they belong
       // in the individual module build.gradle files
   }