Loadersanimated

Bouncing ball

A single ball bouncing over a soft shadow that pulses in time.

Installation

caveui components are copy-paste Jetpack Compose built entirely on Material 3 — there's no caveui dependency to add. Make sure Material 3 is on your classpath (it ships with the Compose BOM), then copy the Usage snippet below into your project.

kotlin

// build.gradle.kts (module)
dependencies {
    implementation(platform("androidx.compose:compose-bom:2025.06.00"))
    implementation("androidx.compose.material3:material3")
}

Usage

kotlin

val t = rememberInfiniteTransition(label = "ball")
val y by t.animateFloat(
    initialValue = 0f,
    targetValue = -16f,
    animationSpec = infiniteRepeatable(
        tween(450, easing = FastOutSlowInEasing),
        RepeatMode.Reverse,
    ),
    label = "y",
)
Column(
    horizontalAlignment = Alignment.CenterHorizontally,
    verticalArrangement = Arrangement.spacedBy(4.dp),
) {
    Box(
        Modifier
            .offset(y = y.dp)
            .size(16.dp)
            .background(MaterialTheme.colorScheme.primary, CircleShape),
    )
    Box(
        Modifier
            .width(16.dp)
            .height(4.dp)
            .background(MaterialTheme.colorScheme.surfaceVariant, CircleShape),
    )
}