在 Jetpack Compose 中单独为每个字母设置动画时将画笔效果应用于整个单词

我正在尝试在 Jetpack Compose 中创建文本效果，其中文本使用画笔，看起来像是一组沿对角线平滑变化的颜色。文本中的各个字母应该上下移动，以及半圈。

我遇到了两个问题：

1. 如果我尝试将画笔应用于整个单词，我不知道如何为移动和旋转的字母设置动画。这是我尝试过的代码：

        Text(
        text = word,
        fontSize = fontSize,
        style = LocalTextStyle.current.copy(brush = gradientBrush),
        modifier = modifier
    )

2. 如果我将动画单独应用于每个字母，我可以通过动画实现所需的结果，但画笔也会单独应用于每个字母，从而产生不吸引人的效果。我需要将画笔应用于整个单词。这是我尝试过的代码：

    Row {
        word.forEachIndexed { index, char ->
            val angle by rotationAngles[index]
            val offset by letterOffsets[index]
            Text(
                text = char.toString(),
                fontSize = fontSize,
                style = LocalTextStyle.current.copy(brush = gradientBrush),
                modifier = Modifier
                    .rotate(angle)
                    .offset(y = offset.dp)
            )
        }
    }

这里有两个演示：

1. 将画笔应用于整个单词的预期结果，但我不知道如何为字母设置动画。
2. 应用动画的预期结果，但我无法将画笔应用于整个单词（画笔单独应用于每个字母）。

如何在 Jetpack Compose 中将画笔应用到整个单词时，为每个字母单独创建向上、向下和半转动的动画？

这是完整的代码：

@Preview(showBackground = true)
@Composable
fun RotatingLettersPreview() {
    RotatingLetters("Medium")
}

@OptIn(ExperimentalTextApi::class)
@Composable
fun RotatingLetters(word: String,
                    fontSize: TextUnit = TextUnit.Unspecified,
                    modifier: Modifier = Modifier) {

    val colorGradient = listOf(
        Color(0xFFC0EFFF), // Light blue
        Color(0xFF9BDBFB), // Medium blue
        Color(0xFF75C2F9), // Dark blue
        Color(0xFFF7D7C4), // Light pink
        Color(0xFFF5B2C7), // Medium pink
        Color(0xFFF28BAE), // Dark pink
        Color(0xFFF7F2D4), // Light beige
        Color(0xFFF5E0C3), // Medium beige
    )

    val fontSizeInPx = with(LocalDensity.current) { 30.sp.toPx() }
    val doubleFontSizeInPx = fontSizeInPx * 2

    val infiniteTransitionForOffset = rememberInfiniteTransition(label = "")
    val offsetAnimation by infiniteTransitionForOffset.animateFloat(
        initialValue = 0f,
        targetValue = doubleFontSizeInPx,
        animationSpec = infiniteRepeatable(tween(200000, easing = LinearEasing)), label = ""
    )

    val gradientBrush = remember(offsetAnimation) {
        object : ShaderBrush() {
            override fun createShader(size: Size): Shader {
                val widthOffset = size.width * offsetAnimation
                val heightOffset = size.height * offsetAnimation
                return LinearGradientShader(
                    colors = colorGradient,
                    from = Offset(widthOffset, heightOffset),
                    to = Offset(widthOffset + size.width, heightOffset + size.height),
                    tileMode = TileMode.Mirror
                )
            }
        }
    }

    val infiniteTransitionForRotation = rememberInfiniteTransition(label = "")
    val rotationDirection = remember { mutableStateOf(1) }

    val rotationAngles = List(word.length) { index ->
        infiniteTransitionForRotation.animateFloat(
            initialValue = 0f,
            targetValue =
            if (index % 2 == 0) 5f * rotationDirection.value else -5f * rotationDirection.value,
            animationSpec = infiniteRepeatable(
                animation = tween(250, easing = LinearEasing),
                repeatMode = RepeatMode.Restart
            ), label = ""
        )
    }

    LaunchedEffect(key1 = Unit) {
        while (true) {
            delay(250)
            rotationDirection.value *= -1
        }
    }

    val letterOffsets = List(word.length) { index ->
        infiniteTransitionForRotation.animateFloat(
            initialValue = 0f,
            targetValue = if (index % 2 == 0) 2f else -2f,
            animationSpec = infiniteRepeatable(
                animation = tween(250, easing = LinearEasing),
                repeatMode = RepeatMode.Reverse
            ), label = ""
        )
    }

    Text(
        text = word,
        fontSize = fontSize,
        style = LocalTextStyle.current.copy(brush = gradientBrush),
        modifier = modifier
    )

/*
    Row {
        word.forEachIndexed { index, char ->
            val angle by rotationAngles[index]
            val offset by letterOffsets[index]
            Text(
                text = char.toString(),
                fontSize = fontSize,
                style = LocalTextStyle.current.copy(brush = gradientBrush),
                modifier = Modifier
                    .rotate(angle)
                    .offset(y = offset.dp)
            )
        }
    }
*/
}