How to get yourself started with Android Kotlin development and the tools you will need to get going. So let’s get started with your first basic setup for Android development. The is the best place for Kotlin Android Tutorial.
The Kotlin plugin is bundled with new Android Studio starting from version 3.0. If you are using an earlier version, you will need to install the Kotlin plugin.
From Java to Kotlin file In order to have a Kotlin file, we are going to convert our already created MainActivity.java file into a Kotlin file. In order to do that just open the MainActivity.java file and open Find Action (CTRL + SHIFT + A) and start searching “Convert Java to Kotlin”. It automatically converts your Java code to Kotlin it does not convert fully supported you need fix some minor error like syntax or some line. It’s easy and good method for migrating to new Kotlin android app.