ch8n

@Stable
interface MutableState<T> : State<T> {
    override var value: T
    operator fun component1(): T
    operator fun component2(): (T) -> Unit
}

ch8n

fun main() {
    val list = listOf(1, 2, 3, 4, 5, 6)
    list.headRecursion { print(it) }
}

fun <T> List<T>.headRecursion(index: Int = lastIndex, next: (item: T) -> Unit) {
    if (index >= 0) {
        headRecursion(index - 1, next)
        next.invoke(get(index))
    }

ch8n

sealed class DownloadManagerStatus {

    sealed class DownloadStatus : DownloadManagerStatus() {

        sealed class StatusPaused : DownloadStatus() {
            object QueuedForWifi : StatusPaused()
            object WaitingForNetwork : StatusPaused()
            object WaitingToRetry : StatusPaused()
            object Unknown : StatusPaused()
        }

ch8n

@ExperimentalComposeUiApi
@Composable
fun OtpBugView() {
    val (editValue, setEditValue) = remember { mutableStateOf("") }
    val otpLength = remember { 4 }
    val focusRequester = remember { FocusRequester() }
    val keyboard = LocalSoftwareKeyboardController.current
    
    // hidden TextField for controlling OTP Cells UI

ch8n

@Composable
fun OtpCell(
    modifier: Modifier,
    value: String,
    isCursorVisible: Boolean = false
) {
    
    val scope = rememberCoroutineScope()
    val (cursorSymbol, setCursorSymbol) = remember { mutableStateOf("") 

ch8n

@Composable
fun CaptureBitmap(
  content: @Composable ()->Unit
) : () -> Bitmap // <---- this will return a callback which returns a bitmap
{
  
  val composeView = ComposeView(...)
  
  //callback that convert view to bitmap
  fun captureBitmap() = composeView.drawToBitmap() 

ch8n

@Composable
fun CaptureBitmap(
  content: @Composable ()->Unit  // <--- we use callback as parameter
){
  
  val composeView = ComposeView(...)
  
  AndroidView(
    factory = {
      composeView.apply {

ch8n

@Composable
fun CaptureBitmap(...){
  
  // we will use compose view as target to get bitmap
  val composeView = ComposeView(...)
  
  // put compose native view to compose ui using AndroidView
  AndroidView(
    factory = {
      composeView.apply {

ch8n

// Native View which accepts Composable as its View Content
ComposeView(context).apply {
    setContent {
        // composable goes here!
    }
}

ch8n

Coloumn {
    val snapShot = CaptureBitmap {
        Button(
        onClick = {},
        modifier = Modifier
            .fillMaxWidth()
            .padding(24.dp)
            .height(55.dp),
        ) {
            Text(text = "Capture my image")