dp px 변환 함수

Dp를 Px로.

fun convertDpToPixel(dp: Float):Float {

    val metrics = resources.displayMetrics
    val px = dp * (metrics.densityDpi / 160f)

    return px
}

Px를 Dp로.

fun convertPixelsToDp(px: Float):Float{

    val metrics: DisplayMetrics = resources.displayMetrics
    val dp = px / (metrics.densityDpi / 160f)

    return dp
}

참고(JAVA코드): https://neoroid.tistory.com/388