Iconsanimated

Radio

A radio option whose inner dot springs in with a ripple as the selection is made.

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

@Composable
fun RadioPulse(selected: Boolean, onSelect: () -> Unit) {
    val p by animateFloatAsState(if (selected) 1f else 0f, spring(Spring.DampingRatioMediumBouncy, 350f), label = "r")
    val color = MaterialTheme.colorScheme.primary
    Canvas(Modifier.size(34.dp).clickable(onClick = onSelect)) {
        drawCircle(color, style = Stroke(2.5.dp.toPx()), radius = size.minDimension / 2 - 4.dp.toPx())
        drawCircle(color, radius = (size.minDimension / 2 - 8.dp.toPx()) * p)
    }
}