将枚举成员转换为相应的文本

您可以将属性添加到枚举。。。

enum class MediaType(val text: String) {
    AUDIO("mp3"),
    VIDEO("mpeg"),
    ARTICLE("text");
}

println(MediaType.AUDIO.text)

如果你想要一个 toText()

enum class MediaType(private val text: String) {
    AUDIO("mp3"),
    VIDEO("mpeg"),
    ARTICLE("text");

    fun toText(): String = text
}

更新:

fun MediaType.toText(): String = 
    when(this) {
       MediaType.AUDIO -> "mp3"
       MediaType.VIDEO -> "mpeg"
       MediaType.ARTICLE -> "text"
    }

enum class MediaType() {
    AUDIO,
    VIDEO,
    ARTICLE;

    fun getMemberText() = when (this) {
        AUDIO -> "mp3"
        VIDEO -> "mpeg"
        else -> "text"
    }
}