This is what libraries in Android Studio are for. They simply extend the capabilities of Java/Kotlin/the Android SDK by letting you use classes and methods built by other users.

This post is an introduction to Kotlin for Android development. Learn how the language differs from Java and the basic syntax and layout.

Investigating what kind of support the open source code editor has for Kotlin, recently named a first-class programming language for Android development.

Here's what Meta's developers have learned from moving their code base from the Java programming language over to Kotlin.