Configuring Kotlin for the project

Starting from Android Studio 3.0, full tooling support for Kotlin was added. Installation of the Kotlin plugin is not required and Kotlin is integrated even deeper into the Android development process.

To use Kotlin with Android Studio 2.x, we must manually install the Kotlin plugin. To install it, we need to go to Android Studio | File | Settings | Plugins | Install JetBrains plugin... | Kotlin and press the Install button:

To be able to use Kotlin, we need to configure Kotlin in our project. For existing Java projects, we need to run the Configure Kotlin in project action (the shortcut in Windows is Ctrl ...

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