Shows how UIImage concept can be used for prod and previews.

UIImage.kt

sealed class UiImage {
    data class LocalImage(val imageRes: Int) : UiImage()
    data class RemoteImage(val imageUrl: String) : UiImage()
}

// Component
@Composable
fun UserProfile(
  avatar: UiImage,
)

// In production
UserProfile(
  avatar = UiImage.RemoteImage(avatarURL)
)

// In preview
@Preview
@Composable
fun UserProfilePreview() {
  UserProfile(
    avatar = UiImage.LocalImage(R.drawable.preview_avatar)
  )
}