public void onBraintreeSubmit(View v) {
  DropInRequest dropInRequest = new DropInRequest()
    .tokenizationKey("sandbox_************");
  startActivityForResult(dropInRequest.getIntent(this), REQUEST_CODE);
}

rememberLauncherForActivityResult

val Component = fc<RProps> {

if (…)

useRef() // big no no

}

@Composable

fun Component() {

if (…)

val a by remember { … }

}

.verticalScroll(rememberScrollState())
.horizontalScroll(rememberScrollState())

Surface(
    shape = MaterialTheme.shapes.medium,
    modifier = Modifier
        .clip(MaterialTheme.shapes.medium)
        .size(imageSize),
) {
    Image(
        painter = rememberImagePainter(
                                data = imageUrl,
                                builder = {
                                    crossfade(true)
                                    error(R.drawable.ic_box)
                                    placeholder(R.drawable.ic_box)
                                },
                            ),
        contentDescription = null,
        contentScale = ContentScale.Crop,
        modifier = Modifier
            .fillMaxSize(),
    )
}

composable

java.lang.IllegalStateException: Nesting scrollable in the same direction layouts like ScrollableContainer and LazyColumn is not allowed.

LazyColumn

Fragment

LinearLayout

.verticalScroll(rememberScrollState())

LazyColumn

NavGraph

Navgraph

Navhost

Navgraph

BottomSheetScaffold

accompanist-navigation-material

rememberNotNull

by remember {mutableStateof(")}

Column{
BasicInput()
EmailInput()
PhoneInput()
}