Add icon by card number

add_icon_by_card_number.dart

Builder(builder: (context) {
                          RegExp visaRegExp = RegExp(r'^4[0-9]{3}');
                          RegExp mastercardRegExp =
                              RegExp(r'^5[1-5][0-9]{2}|^2[2-7][0-9]{2}');
                          RegExp humoRegExp = RegExp(r'^9[0-9]{3}');
                          RegExp uzcardRegExp = RegExp(r'^8[0-9]{3}');
                          if (visaRegExp.hasMatch(params.number!)) {
                            return Image.asset(Assets.visaPng, height: SIZE_16);
                          } else if (mastercardRegExp
                              .hasMatch(params.number!)) {
                            return Image.asset(Assets.mastercardPng,
                                height: SIZE_24);
                          } else if (humoRegExp.hasMatch(params.number!)) {
                            return Image.asset(Assets.humoPng, height: SIZE_24);
                          } else if (uzcardRegExp.hasMatch(params.number!)) {
                            return Image.asset(Assets.uzcardPng,
                                height: SIZE_24);
                          }
                          return const SizedBox();
                        }),