RepeatingButton_Step5.kt

@Composable
fun RepeatingButton(
    modifier: Modifier = Modifier,
    onClick: () -> Unit,
    enabled: Boolean = true,
    interactionSource: MutableInteractionSource = remember { MutableInteractionSource() },
    elevation: ButtonElevation? = ButtonDefaults.elevation(),
    shape: Shape = MaterialTheme.shapes.small,
    border: BorderStroke? = null,
    colors: ButtonColors = ButtonDefaults.buttonColors(),
    contentPadding: PaddingValues = ButtonDefaults.ContentPadding,
    maxDelayMillis: Long = 1000,
    minDelayMillis: Long = 5,
    delayDecayFactor: Float = .15f,
    content: @Composable RowScope.() -> Unit
) {

    val currentClickListener by rememberUpdatedState(onClick)

    Button(
        modifier = modifier.pointerInput(interactionSource, enabled) {
            forEachGesture {
                coroutineScope {
                    awaitPointerEventScope {
                        val down = awaitFirstDown(requireUnconsumed = false)

                        val heldButtonJob = launch {
                            var currentDelayMillis = maxDelayMillis
                            while (enabled && down.pressed) {
                                currentClickListener()
                                delay(currentDelayMillis)
                                val nextDelayMillis =
                                    currentDelayMillis - (currentDelayMillis * delayDecayFactor)
                                currentDelayMillis =
                                    nextDelayMillis.toLong().coerceAtLeast(minDelayMillis)
                            }
                        }

                        waitForUpOrCancellation()
                        heldButtonJob.cancel()
                    }
                }
            }
        },
        onClick = {},
        enabled = enabled,
        interactionSource = interactionSource,
        elevation = elevation,
        shape = shape,
        border = border,
        colors = colors,
        contentPadding = contentPadding,
        content = content
    )
}