flutter - Flutter intlphonefield 在键盘焦点上消失以按国家名称搜索

Question

我intl_phone_field: ^1.4.4用来在颤振中创建一个电话号码字段，效果很好。我得到的错误是何时Search by Country Name专注于键盘显示国家列表消失。任何人都可以帮助解决这个问题吗？下面是我的代码：

IntlPhoneField(
                            dropDownArrowColor: Colors.grey,
                            countryCodeTextColor: Colors.grey,
                            style: TextStyle(color: Colors.grey),
                            controller: _controllerPhone,
                            decoration: InputDecoration( //decoration for Input Field
                              border: InputBorder.none,

                              labelStyle:
                              TextStyle(
                                  color: Colors
                                      .grey,fontFamily: 'Montserrat'
                              ),
                            ),
                            initialCountryCode: ISO.toString(),
                            onChanged: (phone) {
                              phoneNumber = phone.countryCode;
                              phoneCountryISO = phone.countryISOCode;
                              print(phone.completeNumber); //get complete number
                              print(phone.countryISOCode); //get complete number
                              print(phone.countryCode); // get country code only
                              print(phone.number); // only phone number
                            },
                          )