Convert data class value into different in kotlin

I have a data class like this

data class BrushStopColors(
    val stopPoint: Float,
    val color: Int,
)

I have a list

val brushStopColors = listOf(
        BrushStopColors(0.3F, 1),
        BrushStopColors(1F, 1),
    )

I want to convert my color from Int to String or any other format. So I tried this code

val brushArray = brushStopColors.map { it.color.toString() }

And want to change brushArray to .toTypedArray() and passing into different function. It looks like this

fun verticalGradient(vararg colorStops: Pair<Float, String>){
   /// more code in here
}

When I passed the array it’s giving me error

val brushArray = brushStopColors.map { it.color.toString() }.toTypedArray()
verticalGradient(*brushArray)

Error

Type mismatch.
Required:
Array<out Pair<Float, String>>
Found:
Array<String>

Image

>Solution :

val brushArray = brushStopColors.map { it.color.toString() }

The above returns a list of String instead of a list of Pair.

Please use this:

fun BrushStopColors.toPair(): Pair<Float, String> = Pair(this.stopPoint, this.color.toString())


val brushArray = brushStopColors.map { it.toPair() }.toTypedArray()

Or even more concise :

val brushArray = brushStopColors.map { Pair(it.stopPoint, it.color.toString()) }.toTypedArray()