How to show fully transparent system bars by swiping in jetpack compose?

Question

I need my fully transparent system bars to show by swiping and then hide. Now it is hidden when the app starts
.

But after swiping it doesn't hide.

If I use

val activity = LocalContext.current as Activity
with(WindowCompat.getInsetsController(activity.window, activity.window.decorView)) { systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE }
 

the system bar will have a gray tint.

I need absolutely transparent bar without any shades... Please help!

The code

WindowCompat.setDecorFitsSystemWindows(window, false)
setContent {
            Puzzle_QuestTheme {
                Surface(
                    modifier = Modifier.fillMaxSize(),
                    color = MaterialTheme.colorScheme.background
                ) {
                    val systemUiController = rememberSystemUiController()
                    systemUiController.setStatusBarColor(color = Transparent)
                    systemUiController.setNavigationBarColor(color =Transparent,darkIcons = false)
                    systemUiController.isNavigationBarContrastEnforced = false
                    systemUiController.isNavigationBarVisible = false
                    systemUiController.isSystemBarsVisible = false
                    systemUiController.isStatusBarVisible = false
                    PuzzleQuestApp()
                }
            }
        }

Answer 1

after setting systemBarsBehavior

setContent {
    Puzzle_QuestTheme {
        Surface(
            modifier = Modifier.fillMaxSize(),
            color = MaterialTheme.colorScheme.background
        ) {
            val systemUiController = rememberSystemUiController()
            val window = LocalContext.current.window

            LaunchedEffect(Unit) {
                val controller = WindowInsetsControllerCompat(window, window.decorView)
                controller.systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
                controller.hide(WindowInsetsCompat.Type.systemBars())
            }

            systemUiController.setStatusBarColor(color = Color.Transparent)
            systemUiController.setNavigationBarColor(color = Color.Transparent, darkIcons = false)
            systemUiController.isNavigationBarContrastEnforced = false

            PuzzleQuestApp()
        }
    }
}