Find index of Custom List - Kotlin-CodePudding

I have a list

val SongList = [SongInfo(name=Dark Star, rawId=2131689475, time=1:30), SongInfo(name=Can't let go, rawId=2131689474, time=1:24), , SongInfo(name=Big Digits, rawId=2131689473, time=0:49), SongInfo(name=What's Mine, rawId=2131689478]

and to get the song name I do this

val song = songList[0].name

shuffling song

songList.shuffle()

how do I find an index of song, after shuffling the list?

CodePudding user response：

My code isn't the best solution but it finds the index, and return the song name by index.

data class SongInfo(var name: String, var rawId: String, var time: String)

fun main() {
    val songList = listOf(
        SongInfo(name = "Dark Star", rawId = "2131689475", time = "1:30"),
        SongInfo(name = "Can't let go", rawId = "2131689474", time = "1:24"),
        SongInfo(name = "Big Digits", rawId = "2131689473", time = "0:49"),
        SongInfo(name = "What's Mine", rawId = "2131689478", time = "22:31")
    )
    val song = songList[0].name
    val shuffledSongList = songList.shuffled()
    println(shuffledSongList)
    var index = 0
    while (true) {
        if (shuffledSongList[index].name == song) break
        index  
    }
    println(shuffledSongList[index].name)
}