Jetpack compose animation on touch sample.

BounceAnimationOnTouch.kt

@Composable
fun BounceAnimationOnTouch(
    touchedPoint: Offset,
    contentSize: Dp,
    content: @Composable BoxScope.(modifier: Modifier) -> Unit,
) {
    val isVisible = remember { mutableStateOf(false) }
    val animatable = remember { Animatable(0f) }

    val duration = 500
    val boxSize = contentSize + 20.dp

    val density = LocalDensity.current
    val (xDp, yDp) = with(density) {
        (touchedPoint.x.toDp() - contentSize / 2) to (touchedPoint.y.toDp() - contentSize / 2)
    }

    LaunchedEffect(touchedPoint) {
        isVisible.value = true
        animatable.stop()
        animatable.snapTo(0f)
        animatable.animateTo(
            targetValue = contentSize.value,
            animationSpec = tween(durationMillis = duration, easing = EaseOutElastic),
        )

        isVisible.value = animatable.isRunning
    }

    Box(
        Modifier
            .offset(xDp, yDp)
            .size(boxSize),
    ) {
        content.invoke(
            this,
            Modifier
                .align(Alignment.Center)
                .size(if (isVisible.value) animatable.value.dp else 0.dp)
        )
    }
}

SampleBox.kt

var touchedPoint by remember { mutableStateOf(Offset.Zero) }

@Composable
fun SampleFullscreenBox() {
      Box(
             modifier = Modifier
                 .fillMaxSize()
                 .pointerInput(Unit) {
                     awaitPointerEventScope {
                         while (true) {
                             val event = awaitPointerEvent()
                             if (event.type == PointerEventType.Press) {
                                 touchedPoint = event.changes.first().position
                             }
                         }
                     }
                 }
         ) {
              // ... 
                  BounceAnimationOnTouch(
                      touchedPoint = touchedPoint,
                      contentSize = 38.dp,
                      content = { modifier ->
                          Image(
                              painter = painterResource(id = R.drawable.img_heart),
                              contentDescription = null,
                              modifier = modifier,
                              colorFilter = ColorFilter.tint(color = SysColor.PrimaryDefault)
                          )
                      }
                  )
            }
}