fun AnimatingFabContent()

in Jetchat/app/src/main/java/com/example/compose/jetchat/components/AnimatingFabContent.kt [38:98]
59 lines of code
6 McCabe index (conditional complexity)

fun AnimatingFabContent(
    icon: @Composable () -> Unit,
    text: @Composable () -> Unit,
    modifier: Modifier = Modifier,
    extended: Boolean = true
) {
    val currentState = if (extended) ExpandableFabStates.Extended else ExpandableFabStates.Collapsed
    val transition = updateTransition(currentState)

    val textOpacity by transition.animateFloat(
        transitionSpec = {
            if (targetState == ExpandableFabStates.Collapsed) {
                tween(
                    easing = LinearEasing,
                    durationMillis = (transitionDuration / 12f * 5).roundToInt() // 5 / 12 frames
                )
            } else {
                tween(
                    easing = LinearEasing,
                    delayMillis = (transitionDuration / 3f).roundToInt(), // 4 / 12 frames
                    durationMillis = (transitionDuration / 12f * 5).roundToInt() // 5 / 12 frames
                )
            }
        }
    ) { progress ->
        if (progress == ExpandableFabStates.Collapsed) {
            0f
        } else {
            1f
        }
    }
    val fabWidthFactor by transition.animateFloat(
        transitionSpec = {
            if (targetState == ExpandableFabStates.Collapsed) {
                tween(
                    easing = FastOutSlowInEasing,
                    durationMillis = transitionDuration
                )
            } else {
                tween(
                    easing = FastOutSlowInEasing,
                    durationMillis = transitionDuration
                )
            }
        }
    ) { progress ->
        if (progress == ExpandableFabStates.Collapsed) {
            0f
        } else {
            1f
        }
    }
    // Using functions instead of Floats here can improve performance, preventing recompositions.
    IconAndTextRow(
        icon,
        text,
        { textOpacity },
        { fabWidthFactor },
        modifier = modifier
    )
}