LottieAnimation.kt

import androidx.compose.foundation.Canvas
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.runtime.withFrameNanos
import androidx.compose.ui.Modifier
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.graphics.drawscope.drawIntoCanvas
import androidx.compose.ui.graphics.drawscope.withTransform
import androidx.compose.ui.graphics.nativeCanvas
import org.jetbrains.skia.skottie.Animation

@Composable
fun LottieAnimation(
  animation: Animation,
  modifier: Modifier = Modifier,
  loop: Boolean = true,
  scale: Float = 1f,
) {
  var frameTimeInSeconds by remember(animation) { mutableStateOf(0f) }

  Canvas(modifier) {
    withTransform({ scale(scale, scale, Offset.Zero) }) {
      drawIntoCanvas {
        animation.seekFrameTime(frameTimeInSeconds).render(it.nativeCanvas)
      }
    }
  }

  LaunchedEffect(animation) {
    var lastFrameNanos = Long.MIN_VALUE

    while (true) {
      val animationEnded = withFrameNanos {
        if (lastFrameNanos == Long.MIN_VALUE) lastFrameNanos = it

        val nextFrameTimeInSeconds = (it - lastFrameNanos).toFloat() / 1_000_000_000L

        frameTimeInSeconds = if (nextFrameTimeInSeconds >= animation.duration) {
          lastFrameNanos = Long.MIN_VALUE
          animation.duration
        } else nextFrameTimeInSeconds

        return@withFrameNanos frameTimeInSeconds == animation.duration && !loop
      }

      if (animationEnded) break
    }
  }
}

Found this from your KotlinConf talk a year ago because you included it in your video talk called "You can do desktop too!". I left a comment on the video too. If you can get talented motion graphics designers to produce content in Cavalry (which is like AfterEffects for SVG), then you can create some crazy cool stuff. I'm still learning the Kotlin language but i can't wait to get crazy with Composer and lottie files.