enabled当我使用参数设置为 的TextField 小部件时false，边框消失。
Flexible(\n child: \n TextField(\n onTap: () {\n Future<DateTime> dateTime = _buildDataHoraInicial(context);\n dateTime.then((date){\n _dataHoraInicial = date;\n _dataTempoInicialController.text = date.toIso8601String();\n print(_dataHoraInicial);\n });\n },\n controller: _dataTempoInicialController,\n style: TextStyle(color: Colors.white),\n decoration: InputDecoration(\n contentPadding: const EdgeInsets.symmetric(vertical: 15.0),\n enabledBorder: OutlineInputBorder(\n borderSide: BorderSide(color: Color(0xfff7b733))),\n prefixIcon: Icon(\n Icons.calendar_today,\n color: Color(0xfff7b733),\n size: 16.0,\n ),\n suffixIcon: Icon(Icons.access_time,\n color: Color(0xfff7b733), size: 16.0),\n border: OutlineInputBorder(\n borderSide: BorderSide(color: Color(0xfff7b733))),\n labelText: \'Data e Hora de In\xc3\xadcio\',\n fillColor: Colors.white,\n hintStyle: TextStyle(color: Colors.white),\n labelStyle: TextStyle(\n fontSize: 16.0, color: const …