Does Kotlin have an option to get a list of all en...

# announcements

[Vitali Plagov]

Does Kotlin have an option to get a list of all enums that are in a class. Not values, but names? I couldn’t find one. Then, through an extension function?

[LeoColman]

MyEnum.values().map { it.name() }

[Vitali Plagov]

Wow. I didn’t expect it to be so easy and elegant 🙂 Thanks a lot!

[LeoColman]

You probably could extract that to a extension function if need that a lot

[LeoColman]

and even place that inside your enum Companion object (making it similar to a static method in Java)

[LeoColman]

enum class MyEnum {
    A, B, C;

    companion object { 
        fun names() = values().map { it.name() }
    }
}

...
MyEnum.names()

[Vitali Plagov]

It returns actually a String. Can it return the enum type?

[LeoColman]

Ah, then you want the value, don't you?

[LeoColman]

MyEnum.values().toList() maybe ?

[LeoColman]

I thought you wanted the names

[LeoColman]

(of the constants)

[LeoColman]

Perhaps if you give us an example we can figure something out

[Vitali Plagov]

MyEnum.values().toList() this one looks like what I need. I thought that value is like ‘Enum value’ in this example - ENUM_NAME("Enum value")

[diesieben07]

Enums are regular objects in Kotlin (like in Java). ENUM_NAME will be an instance of MyEnum.

[diesieben07]

https://kotlinlang.org/docs/reference/enum-classes.html