Kotlin ArrayList类型toTypedArray转换Array

Kotlin ArrayList类型toTypedArray转换Array

 

data class Point(val x: Float, val y: Float)

fun array_test(points: ArrayList<Array<Point>>) {
    points.forEachIndexed { idx, ap ->
        ap.forEach {
            print("$idx $it ")
        }

        println()
    }
}

fun main(args: Array<String>) {
    val p1 = arrayListOf(
        Point(0.0f, 0.0f),
        Point(0.1f, 0.1f),
        Point(0.5f, 0.5f),
    )

    val p2 = arrayListOf(
        Point(0.6f, 0.6f),
        Point(1.0f, 1.0f),
    )

    array_test(arrayListOf(p1.toTypedArray(), p2.toTypedArray()))
}

0 Point(x=0.0, y=0.0) 0 Point(x=0.1, y=0.1) 0 Point(x=0.5, y=0.5) 
1 Point(x=0.6, y=0.6) 1 Point(x=1.0, y=1.0) 

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