Flutter TextField 在 container中内容

Container(
              color: Colors.black12,
              constraints: BoxConstraints(maxHeight: 30),
              child: TextField(
                textAlignVertical: TextAlignVertical.bottom,
                focusNode: secondTextFieldNode,
                decoration: InputDecoration(
                  hintText: '请输入',
                  border: OutlineInputBorder(borderSide: BorderSide.none),
                  //    contentPadding: EdgeInsets.all(0),
                ),
                textCapitalization: TextCapitalization.characters,
              ),
            ),

主要是这两个属性
textAlignVertical: TextAlignVertical.bottom border: OutlineInputBorder(borderSide: BorderSide.none),