1、Android Keydown dispatch
从移动扫描仪设备获取Enter键事件
https://stackoverflow.com/questions/58263620/how-to-use-key-press-event-on-textfromfield-in-flutter
RawKeyboardListener(
focusNode: _focusNode1,
onKey: (event) {
if (event.runtimeType == RawKeyDownEvent) {
ToastUtils.toast(this._textEditingController1.text);
}
},
child: TextFormField(
controller: _textEditingController1,
onFieldSubmitted: (_textController) {
},
),
)
