Google Android KTX

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Source

To make Android development with Kotlin more clear, pleasant and idiomatic when working with framework classes, we created Android KTX - A set of extension functions that covers, some of the most used classes in Android like View, SharedPreferences, Canvas, Animator and others.

GitHub - android/android-ktx: A set of Kotlin extensions for Android app development.

 

[Bapun]

Android Developers Blog: Introducing Android KTX: Even Sweeter Kotlin Development for Android