Togglesanimated

Heart Pop

Heart toggle popping in scale with a soft tinted halo when liked.

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 HeartPopToggle() {
  var liked by remember { mutableStateOf(true) }
  val scale by animateFloatAsState(
    targetValue = if (liked) 1.25f else 1f,
    animationSpec = spring(
      dampingRatio = Spring.DampingRatioHighBouncy,
      stiffness = Spring.StiffnessLow,
    ),
    label = "pop",
  )
  FilledTonalIconToggleButton(
    checked = liked,
    onCheckedChange = { liked = it },
    colors = IconButtonDefaults
      .filledTonalIconToggleButtonColors(
        checkedContainerColor =
          MaterialTheme.colorScheme.errorContainer,
        checkedContentColor =
          MaterialTheme.colorScheme.error,
      ),
  ) {
    Icon(
      imageVector = Icons.Filled.Favorite,
      contentDescription = null,
      modifier = Modifier.graphicsLayer {
        scaleX = scale
        scaleY = scale
      },
    )
  }
}