How to convert TextUnit to Dp in Jetpack Compose?

Question

I know the difference between them. I want to calculate the text height base on lineHeight. The value of lineHeight is in TextUnit so I want to convert it into Dp.

Answer 1

You need to grab the current Density from the LocalDensity—so this will only work in composition, within a @Composable function—and use that to convert to Dp:

val lineHeightSp: TextUnit = 12.sp
val lineHeightDp: Dp = with(LocalDensity.current) {
     lineHeightSp.toDp()
}

Answer 2

private fun Int.textDp(density: Density): TextUnit = with(density) {
    [email protected]()
}

val Int.textDp: TextUnit
    @Composable get() =  this.textDp(density = LocalDensity.current)