Get Started with Kotlin in Android studio

Kotlin is fully supported with android studio v3.0 and Higher.

Setup Kotlin to Android Studio

Important : The android studio version must be 3.0 or higher

To add Kotlin support to the android studio we need to install the Kotlin plugin for your Android Studio.

To add the Kotlin plugin open

Android Studio File → Settings → Plugins →type “Kotlin” in search box → Click Browse in Repositories → install → Restart Android studio to activate the Plugin

Add Kotlin to the existing project

Add classpath in project level build.gradle.

Also here defined a variable kotlin_version as ext.kotlin_version = ‘1.2.41’ to share the version to all.

<// Top-level build file where you can add configuration options common to all sub-projects/modules.

    buildscript {
        ext.kotlin_version = '1.2.41'
        repositories {
            google()
            jcenter()
        }
        dependencies {
            classpath 'com.android.tools.build:gradle:3.0.1'
            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
        }
    }

    allprojects {
        repositories {
            google()
            jcenter()
        }
    }

    task clean(type: Delete) {
        delete rootProject.buildDir
    }

2. Add dependencies to app level build.gradle

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

dependencies {

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

}