perf_snippet_15

perf_snippet_15.kt

@Composable
fun StateReadsInputLambdasScreen(viewModel: TypicalViewModel = hiltViewModel()) {
    val name by viewModel.name.collectAsStateWithLifecycle()
    val creditCardNumber by viewModel.creditCardNumber.collectAsStateWithLifecycle()

    Column {
        InputsWrapper(
            name = name,
            creditCardNumber = creditCardNumber,
            onNameEntered = viewModel::onNameEntered,
            onCreditCardNumberEntered = viewModel::onCardNumberEntered
        )
    }
}

@Composable
private fun InputsWrapper(
    name: String,
    creditCardNumber: String,
    onNameEntered: (value: String) -> Unit,
    onCreditCardNumberEntered: (value: String) -> Unit,
) {
    var count by remember { mutableStateOf(0) }

    NameTextField(name, onNameEntered)
    CreditCardNumberTextField(creditCardNumber, onCreditCardNumberEntered)
    Text(text = "Count: $count")
    Button(onClick = { count++ }) {
        Text(text = "count++")
    }
}

@Composable
private fun NameTextField(
    name: String,
    onNameEntered: (value: String) -> Unit
) {
    TextField(
        value = name,
        onValueChange = onNameEntered,
        label = { Text("name") },
    )
}