如何打开一个带有闪烁光标的 BasicTextField？

Question

我的观点之一是BasicTextField。我默认显示软键盘，当我开始在键盘上输入字母时，BasicTextField 中没有显示任何内容，因为它没有光标。

为了使我的键盘操作可见，我必须点击 TextField 以使光标可见。现在，当我点击键盘时，我会在BasicTextField 中看到结果。

如何打开带有活动闪烁光标的 BasicTextField？

编辑：proposed solution from here 对我不起作用

val focusRequester = FocusRequester()
val keyboardController = LocalSoftwareKeyboardController.current

//..

    .focusRequester(focusRequester)
    .onFocusChanged {
        if (it.isFocused) {
            keyboardController?.show()
        }
    }

既没有激活光标也没有使键盘出现。在此之上

DisposableEffect(Unit) {
    focusRequester.requestFocus()
    onDispose { }
}

导致崩溃：

java.lang.IllegalStateException： FocusRequester 未初始化。以下是一些可能的修复：

   1. Remember the FocusRequester: val focusRequester = remember { FocusRequester() }
   2. Did you forget to add a Modifier.focusRequester() ?
   3. Are you attempting to request focus during composition? Focus requests should be made in
   response to some event. Eg Modifier.clickable { focusRequester.requestFocus() }

    at androidx.compose.ui.focus.FocusRequester.requestFocus(FocusRequester.kt:54)

Answer 1

我让它工作：

val focusRequester = FocusRequester()

//..

.focusRequester(focusRequester)

而不是

DisposableEffect(Unit) {
    focusRequester.requestFocus()
    onDispose { }
}

我用了

LaunchedEffect(Unit) {
    focusRequester.requestFocus()
}