TriStateCheckbox

TriStateCheckboxSample

@Composable
fun TriStateCheckboxSample() {
    Column {
        // define dependent checkboxes states
        val (state, onStateChange) = remember { mutableStateOf(true) }
        val (state2, onStateChange2) = remember { mutableStateOf(true) }
        // TriStateCheckbox state reflects state of dependent checkboxes
        val parentState =
            remember(state, state2) {
                if (state && state2) ToggleableState.On
                else if (!state && !state2) ToggleableState.Off else ToggleableState.Indeterminate
            }
        // click on TriStateCheckbox can set state for dependent checkboxes
        val onParentClick = {
            val s = parentState != ToggleableState.On
            onStateChange(s)
            onStateChange2(s)
        }
        TriStateCheckbox(
            state = parentState,
            onClick = onParentClick,
            colors = CheckboxDefaults.colors(checkedColor = MaterialTheme.colors.primary),
        )
        Spacer(Modifier.size(25.dp))
        Column(Modifier.padding(10.dp, 0.dp, 0.dp, 0.dp)) {
            Checkbox(state, onStateChange)
            Spacer(Modifier.size(25.dp))
            Checkbox(state2, onStateChange2)
        }
    }
}