whatsapp_background_composable

whatsapp_background_composable.kt

@Immutable
data class BackgroundTheme(
  val color: Color = Color.Unspecified,
  val tonalElevation: Dp = Dp.Unspecified
)

val LocalBackgroundTheme = staticCompositionLocalOf { BackgroundTheme() }

@Composable
fun WhatsAppCloneBackground(
  modifier: Modifier = Modifier,
  content: @Composable () -> Unit
) {
  val color = LocalBackgroundTheme.current.color
  val tonalElevation = LocalBackgroundTheme.current.tonalElevation
  Surface(
    color = if (color == Color.Unspecified) Color.Transparent else color,
    tonalElevation = if (tonalElevation == Dp.Unspecified) 0.dp else tonalElevation,
    modifier = modifier.fillMaxSize()
  ) {
    CompositionLocalProvider(LocalAbsoluteTonalElevation provides 0.dp) {
      content()
    }
  }
}