问光标正在通过表情符号

EN

TextEditingController _commentTextController = TextEditingController();


TextField(
  textInputAction: TextInputAction.send,
  keyboardType: TextInputType.multiline,
  cursorWidth: 1,
  autocorrect: false,
  cursorColor: Colors.black,
  controller: _commentTextController,
  maxLines: null,
  autofocus: true,
  decoration: InputDecoration(
    hintText: "Your comment...",
    enabledBorder: InputBorder.none,
    focusedBorder: InputBorder.none,
  ),
  style: TextStyle(fontSize: 15),
)

String currentComment = _commentTextController.text;

String newCommentText = currentComment + ""

setState(() {
  _commentTextController = TextEditingController(text: newCommentText);
});

I/flutter (27958): Another exception was thrown: Invalid argument(s): string is not well-formed UTF-16
I/flutter (27958): Another exception was thrown: NoSuchMethodError: The getter 'alphabeticBaseline' was called on null.
I/flutter (27958): Another exception was thrown: NoSuchMethodError: The method 'getBoxesForRange' was called on null.
I/flutter (27958): Another exception was thrown: Please see the documentation for computeDistanceToActualBaseline for the required calling conventions of this method.