fvilarino

sealed interface ActionMenuItem {
    val title: String
    val onClick: () -> Unit

    sealed interface IconMenuItem : ActionMenuItem {
        val icon: ImageVector
        val contentDescription: String?

        data class AlwaysShown(
            override val title: String,

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class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            PlaygroundTheme {
                Surface(
                    modifier = Modifier.fillMaxSize(),
                    color = MaterialTheme.colorScheme.background,
                ) {
                    Box {

fvilarino

private const val NumDots = 5
private const val AnimationDuration = 2000
private const val AnimationSegment = AnimationDuration / 10
private val MainDotSize = 24.dp

private val Float.alphaFromRadians: Float
    get() {
        val normalized = (this / (2f * PI)).toFloat()
        return .5f + (normalized - .5f).absoluteValue
    }

fvilarino

@Stable
interface AnimatedDrawerState {
    var density: Float
    val drawerWidth: Dp

    val drawerTranslationX: Float
    val drawerElevation: Float

    val backgroundTranslationX: Float
    val backgroundAlpha: Float

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val HomeRoute = "home"
val SettingsRoute = "settings"
val ManyOptionsRoute = "manyOptions"
val NoAppBarRoute = "noAppBar"

sealed interface Screen {
    val route: String
    val isAppBarVisible: Boolean
    val navigationIcon: ImageVector?
    val navigationIconContentDescription: String?

fvilarino

private val TickerCycleMillis = 150

private object AlphabetMapper {
    private val Alphabet = " ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789•".toList()

    val size: Int = Alphabet.size

    fun getLetterAt(index: Int): Char = Alphabet[index % size]

    fun getIndexOf(letter: Char, offset: Int = 0): TickerIndex {

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enum class AnimationType {
    Bounce,
    LazyBounce,
    Fade,
}

private const val NumIndicators = 3
private const val IndicatorSize = 12
private const val BounceAnimationDurationMillis = 300
private const val FadeAnimationDurationMillis = 600

fvilarino

@Stable
interface CircularCarouselState {
    val angle: Float
    val minorAxisFactor: Float

    suspend fun stop()
    suspend fun snapTo(angle: Float)
    suspend fun decayTo(angle: Float, velocity: Float)
    fun setMinorAxisFactor(factor: Float)
}

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@Composable
fun MorphingFab(modifier: Modifier = Modifier) {
    val users = remember { mutableStateListOf<User>() }
    // 1
    var showDialog by remember { mutableStateOf(false) }
    // 2
    SharedTransitionLayout(
        modifier = Modifier
            .fillMaxSize(),
    ) {

fvilarino

@Composable
fun MorphingFab(modifier: Modifier = Modifier) {
    val users = remember { mutableStateListOf<User>() }

    Box(modifier = modifier) {
        UserList(
            users = users,
            modifier = Modifier.fillMaxSize(),
        )
        InputBox(