derivedStateOf

DerivedStateSample

@Suppress("CanBeVal", "unused")
@Composable
fun DerivedStateSample() {
    @Composable
    fun CountDisplay(count: State<Int>) {
        Text("Count: ${count.value}")
    }
    @Composable
    fun Example() {
        var a by remember { mutableStateOf(0) }
        var b by remember { mutableStateOf(0) }
        val sum = remember { derivedStateOf { a + b } }
        // Changing either a or b will cause CountDisplay to recompose but not trigger Example
        // to recompose.
        CountDisplay(sum)
    }
}