Auto Resize Text in Jetpack Compose

AutoResizeText.kt

@Composable
fun AutoTextSizeCard() {
    var textLength by remember { mutableStateOf(50) }
    val baseText = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. "
    val longText = baseText.repeat(textLength / baseText.length + 1).substring(0, textLength)


    Card(
        modifier = Modifier
            .fillMaxWidth()
            .height(300.dp)
            .padding(16.dp),
        elevation = CardDefaults.elevatedCardElevation(4.dp)
    ) {
        Column(
            modifier = Modifier
                .fillMaxSize()
                .padding(16.dp)
        ) {
            Box(
                modifier = Modifier
                    .fillMaxWidth()
                    .weight(1f)
            ) {
                AutoResizeText(
                    text = longText,
                    modifier = Modifier.fillMaxSize()
                )
            }
            Spacer(modifier = Modifier.height(16.dp))
            Slider(
                value = textLength.toFloat(),
                onValueChange = { textLength = it.toInt() },
                valueRange = 50f..5000f
            )
        }
    }
}

@Composable
fun AutoResizeText(
    text: String,
    modifier: Modifier = Modifier
) {
    val textSize by remember { mutableStateOf(14.sp) }

    BoxWithConstraints(modifier = modifier) {
        val constraints = this.constraints

        var resizedTextSize by remember { mutableStateOf(textSize) }

        BasicText(
            text = text,
            style = TextStyle(fontSize = resizedTextSize, fontWeight = FontWeight.Normal),
            onTextLayout = { textLayoutResult ->
                if (textLayoutResult.didOverflowHeight || textLayoutResult.didOverflowWidth) {
                    resizedTextSize *= 0.9
                }
            },
            modifier = Modifier.fillMaxSize()
        )
    }
}