Runtime permission in Kotlin

Even though the Runtime permission model was released back in Android 6.0 (API 23), this topic still receives many queries. Since it's basically a requirement for all future apps, you'll likely need to implement this in Kotlin as well. Take a look at the previous recipe (see links below) for information on the APIs and this recipe for the Kotlin code.

Getting ready

Create a new project in Android Studio and call it KotlinRuntimePermission. Use the default Phone & Tablet option, select Empty Activity when prompted for Activity Type, and remember to check the Include Kotlin support checkbox.

The sample source code sets the minimum API to 23, but this is...