我有一个TextFied Composable，包含KeyboardOptions和KeyboardActions。

@Composable
fun TodoInputText(...) {
    val keyboardController = LocalSoftwareKeyboardController.current
    TextField( ....
        onValueChange = onTextChanged,
        keyboardOptions = KeyboardOptions.Default.copy(imeAction = ImeAction.Done),
        keyboardActions = KeyboardActions(onDone = {
            onImeAction()
            keyboardController?.hide()
        }))}

TextField与Done Action一起工作，但每当TextField为空时，我需要禁用键盘上的Done ImeAction，如此GIF所示

我已经提取了一个状态来检查TextField是否为空。

@Composable
fun TodoItemEntryInput(...) {
    //hold state for TextField
    val (text, setText) = remember { mutableStateOf("") }
    val isTextBlank = text.isNotBlank()
    //declare lambda function submit that handles  a submit event when done is pressed
    val submitAction = { .... }
    TodoItemInput(
        text = text,
        onTextChange = setText,
        submitAction = submitAction,
       
    )}

现在我的问题是，当文本为空时，如何使用isTextBlank状态来禁用或灰显Done ImeAction。这是为了避免用户输入空白文本时的错误--我发现输入验证对于这种情况不是很理想。