kotlin binding views to activity
// Adding this to your build.gradle (Module level) plugins { id 'com.android.application' id 'kotlin-android' //Added: id 'kotlin-kapt' id 'kotlin-android-extensions' } // And having this in your layout <Button android:id="@+id/btn_finish" (...) // You ca use this in the .kt file btn_finish.setOnClickListener { // Do Something }