我正在开发一个 react-native 应用程序，我从电话联系人列表中获取电话号码。这里的问题是许多人将没有国家代码的号码保存在他们的电话簿中。在这种情况下，我无法确定该电话号码来自哪个国家/地区。有人对此有解决方案吗？
下面是一个示例：
假设我有来自印度(+91(的号码保存为1111111111(10位数字(，但这里没有国家代码前缀。现在我应该如何确定该号码的国家/地区代码？
因此，如果电话号码中未提供国家/地区代码，则在任何情况下都无法检测到国家/地区。
如果提供了，您可以使用以下函数从以下 JSON 中筛选国家/地区：
const countries = JSONContent; // as below
function findCountry(code) {
const i = 0;
while(countries[i] && (countries[i].dial_code === code || countries[i].dial_code === '+' + code)) {
i++;
}
if (countries[i]) {
return countries[i].name; // Or countries[i].code, or the whole countries[i] object
}
return 'No country found';
}
杰伦
[{"name":"Israel","dial_code":"+972","code":"IL"},{"name":"Afghanistan","dial_code":"+93","code":"AF"},{"name":"Albania","dial_code":"+355","code":"AL"},{"name":"Algeria","dial_code":"+213","code":"DZ"},{"name":"AmericanSamoa","dial_code":"+1 684","code":"AS"},{"name":"Andorra","dial_code":"+376","code":"AD"},{"name":"Angola","dial_code":"+244","code":"AO"},{"name":"Anguilla","dial_code":"+1 264","code":"AI"},{"name":"Antigua and Barbuda","dial_code":"+1268","code":"AG"},{"name":"Argentina","dial_code":"+54","code":"AR"},{"name":"Armenia","dial_code":"+374","code":"AM"},{"name":"Aruba","dial_code":"+297","code":"AW"},{"name":"Australia","dial_code":"+61","code":"AU"},{"name":"Austria","dial_code":"+43","code":"AT"},{"name":"Azerbaijan","dial_code":"+994","code":"AZ"},{"name":"Bahamas","dial_code":"+1 242","code":"BS"},{"name":"Bahrain","dial_code":"+973","code":"BH"},{"name":"Bangladesh","dial_code":"+880","code":"BD"},{"name":"Barbados","dial_code":"+1 246","code":"BB"},{"name":"Belarus","dial_code":"+375","code":"BY"},{"name":"Belgium","dial_code":"+32","code":"BE"},{"name":"Belize","dial_code":"+501","code":"BZ"},{"name":"Benin","dial_code":"+229","code":"BJ"},{"name":"Bermuda","dial_code":"+1 441","code":"BM"},{"name":"Bhutan","dial_code":"+975","code":"BT"},{"name":"Bosnia and Herzegovina","dial_code":"+387","code":"BA"},{"name":"Botswana","dial_code":"+267","code":"BW"},{"name":"Brazil","dial_code":"+55","code":"BR"},{"name":"British Indian Ocean Territory","dial_code":"+246","code":"IO"},{"name":"Bulgaria","dial_code":"+359","code":"BG"},{"name":"Burkina Faso","dial_code":"+226","code":"BF"},{"name":"Burundi","dial_code":"+257","code":"BI"},{"name":"Cambodia","dial_code":"+855","code":"KH"},{"name":"Cameroon","dial_code":"+237","code":"CM"},{"name":"Canada","dial_code":"+1","code":"CA"},{"name":"Cape Verde","dial_code":"+238","code":"CV"},{"name":"Cayman Islands","dial_code":"+ 345","code":"KY"},{"name":"Central African Republic","dial_code":"+236","code":"CF"},{"name":"Chad","dial_code":"+235","code":"TD"},{"name":"Chile","dial_code":"+56","code":"CL"},{"name":"China","dial_code":"+86","code":"CN"},{"name":"Christmas Island","dial_code":"+61","code":"CX"},{"name":"Colombia","dial_code":"+57","code":"CO"},{"name":"Comoros","dial_code":"+269","code":"KM"},{"name":"Congo","dial_code":"+242","code":"CG"},{"name":"Cook Islands","dial_code":"+682","code":"CK"},{"name":"Costa Rica","dial_code":"+506","code":"CR"},{"name":"Croatia","dial_code":"+385","code":"HR"},{"name":"Cuba","dial_code":"+53","code":"CU"},{"name":"Cyprus","dial_code":"+537","code":"CY"},{"name":"Czech Republic","dial_code":"+420","code":"CZ"},{"name":"Denmark","dial_code":"+45","code":"DK"},{"name":"Djibouti","dial_code":"+253","code":"DJ"},{"name":"Dominica","dial_code":"+1 767","code":"DM"},{"name":"Dominican Republic","dial_code":"+1 849","code":"DO"},{"name":"Ecuador","dial_code":"+593","code":"EC"},{"name":"Egypt","dial_code":"+20","code":"EG"},{"name":"El Salvador","dial_code":"+503","code":"SV"},{"name":"Equatorial Guinea","dial_code":"+240","code":"GQ"},{"name":"Eritrea","dial_code":"+291","code":"ER"},{"name":"Estonia","dial_code":"+372","code":"EE"},{"name":"Ethiopia","dial_code":"+251","code":"ET"},{"name":"Faroe Islands","dial_code":"+298","code":"FO"},{"name":"Fiji","dial_code":"+679","code":"FJ"},{"name":"Finland","dial_code":"+358","code":"FI"},{"name":"France","dial_code":"+33","code":"FR"},{"name":"French Guiana","dial_code":"+594","code":"GF"},{"name":"French Polynesia","dial_code":"+689","code":"PF"},{"name":"Gabon","dial_code":"+241","code":"GA"},{"name":"Gambia","dial_code":"+220","code":"GM"},{"name":"Georgia","dial_code":"+995","code":"GE"},{"name":"Germany","dial_code":"+49","code":"DE"},{"name":"Ghana","dial_code":"+233","code":"GH"},{"name":"Gibraltar","dial_code":"+350","code":"GI"},{"name":"Greece","dial_code":"+30","code":"GR"},{"name":"Greenland","dial_code":"+299","code":"GL"},{"name":"Grenada","dial_code":"+1 473","code":"GD"},{"name":"Guadeloupe","dial_code":"+590","code":"GP"},{"name":"Guam","dial_code":"+1 671","code":"GU"},{"name":"Guatemala","dial_code":"+502","code":"GT"},{"name":"Guinea","dial_code":"+224","code":"GN"},{"name":"Guinea-Bissau","dial_code":"+245","code":"GW"},{"name":"Guyana","dial_code":"+595","code":"GY"},{"name":"Haiti","dial_code":"+509","code":"HT"},{"name":"Honduras","dial_code":"+504","code":"HN"},{"name":"Hungary","dial_code":"+36","code":"HU"},{"name":"Iceland","dial_code":"+354","code":"IS"},{"name":"India","dial_code":"+91","code":"IN"},{"name":"Indonesia","dial_code":"+62","code":"ID"},{"name":"Iraq","dial_code":"+964","code":"IQ"},{"name":"Ireland","dial_code":"+353","code":"IE"},{"name":"Israel","dial_code":"+972","code":"IL"},{"name":"Italy","dial_code":"+39","code":"IT"},{"name":"Jamaica","dial_code":"+1 876","code":"JM"},{"name":"Japan","dial_code":"+81","code":"JP"},{"name":"Jordan","dial_code":"+962","code":"JO"},{"name":"Kazakhstan","dial_code":"+7 7","code":"KZ"},{"name":"Kenya","dial_code":"+254","code":"KE"},{"name":"Kiribati","dial_code":"+686","code":"KI"},{"name":"Kuwait","dial_code":"+965","code":"KW"},{"name":"Kyrgyzstan","dial_code":"+996","code":"KG"},{"name":"Latvia","dial_code":"+371","code":"LV"},{"name":"Lebanon","dial_code":"+961","code":"LB"},{"name":"Lesotho","dial_code":"+266","code":"LS"},{"name":"Liberia","dial_code":"+231","code":"LR"},{"name":"Liechtenstein","dial_code":"+423","code":"LI"},{"name":"Lithuania","dial_code":"+370","code":"LT"},{"name":"Luxembourg","dial_code":"+352","code":"LU"},{"name":"Madagascar","dial_code":"+261","code":"MG"},{"name":"Malawi","dial_code":"+265","code":"MW"},{"name":"Malaysia","dial_code":"+60","code":"MY"},{"name":"Maldives","dial_code":"+960","code":"MV"},{"name":"Mali","dial_code":"+223","code":"ML"},{"name":"Malta","dial_code":"+356","code":"MT"},{"name":"Marshall Islands","dial_code":"+692","code":"MH"},{"name":"Martinique","dial_code":"+596","code":"MQ"},{"name":"Mauritania","dial_code":"+222","code":"MR"},{"name":"Mauritius","dial_code":"+230","code":"MU"},{"name":"Mayotte","dial_code":"+262","code":"YT"},{"name":"Mexico","dial_code":"+52","code":"MX"},{"name":"Monaco","dial_code":"+377","code":"MC"},{"name":"Mongolia","dial_code":"+976","code":"MN"},{"name":"Montenegro","dial_code":"+382","code":"ME"},{"name":"Montserrat","dial_code":"+1664","code":"MS"},{"name":"Morocco","dial_code":"+212","code":"MA"},{"name":"Myanmar","dial_code":"+95","code":"MM"},{"name":"Namibia","dial_code":"+264","code":"NA"},{"name":"Nauru","dial_code":"+674","code":"NR"},{"name":"Nepal","dial_code":"+977","code":"NP"},{"name":"Netherlands","dial_code":"+31","code":"NL"},{"name":"Netherlands Antilles","dial_code":"+599","code":"AN"},{"name":"New Caledonia","dial_code":"+687","code":"NC"},{"name":"New Zealand","dial_code":"+64","code":"NZ"},{"name":"Nicaragua","dial_code":"+505","code":"NI"},{"name":"Niger","dial_code":"+227","code":"NE"},{"name":"Nigeria","dial_code":"+234","code":"NG"},{"name":"Niue","dial_code":"+683","code":"NU"},{"name":"Norfolk Island","dial_code":"+672","code":"NF"},{"name":"Northern Mariana Islands","dial_code":"+1 670","code":"MP"},{"name":"Norway","dial_code":"+47","code":"NO"},{"name":"Oman","dial_code":"+968","code":"OM"},{"name":"Pakistan","dial_code":"+92","code":"PK"},{"name":"Palau","dial_code":"+680","code":"PW"},{"name":"Panama","dial_code":"+507","code":"PA"},{"name":"Papua New Guinea","dial_code":"+675","code":"PG"},{"name":"Paraguay","dial_code":"+595","code":"PY"},{"name":"Peru","dial_code":"+51","code":"PE"},{"name":"Philippines","dial_code":"+63","code":"PH"},{"name":"Poland","dial_code":"+48","code":"PL"},{"name":"Portugal","dial_code":"+351","code":"PT"},{"name":"Puerto Rico","dial_code":"+1 939","code":"PR"},{"name":"Qatar","dial_code":"+974","code":"QA"},{"name":"Romania","dial_code":"+40","code":"RO"},{"name":"Rwanda","dial_code":"+250","code":"RW"},{"name":"Samoa","dial_code":"+685","code":"WS"},{"name":"San Marino","dial_code":"+378","code":"SM"},{"name":"Saudi Arabia","dial_code":"+966","code":"SA"},{"name":"Senegal","dial_code":"+221","code":"SN"},{"name":"Serbia","dial_code":"+381","code":"RS"},{"name":"Seychelles","dial_code":"+248","code":"SC"},{"name":"Sierra Leone","dial_code":"+232","code":"SL"},{"name":"Singapore","dial_code":"+65","code":"SG"},{"name":"Slovakia","dial_code":"+421","code":"SK"},{"name":"Slovenia","dial_code":"+386","code":"SI"},{"name":"Solomon Islands","dial_code":"+677","code":"SB"},{"name":"South Africa","dial_code":"+27","code":"ZA"},{"name":"South Georgia and the South Sandwich Islands","dial_code":"+500","code":"GS"},{"name":"Spain","dial_code":"+34","code":"ES"},{"name":"Sri Lanka","dial_code":"+94","code":"LK"},{"name":"Sudan","dial_code":"+249","code":"SD"},{"name":"Suriname","dial_code":"+597","code":"SR"},{"name":"Swaziland","dial_code":"+268","code":"SZ"},{"name":"Sweden","dial_code":"+46","code":"SE"},{"name":"Switzerland","dial_code":"+41","code":"CH"},{"name":"Tajikistan","dial_code":"+992","code":"TJ"},{"name":"Thailand","dial_code":"+66","code":"TH"},{"name":"Togo","dial_code":"+228","code":"TG"},{"name":"Tokelau","dial_code":"+690","code":"TK"},{"name":"Tonga","dial_code":"+676","code":"TO"},{"name":"Trinidad and Tobago","dial_code":"+1 868","code":"TT"},{"name":"Tunisia","dial_code":"+216","code":"TN"},{"name":"Turkey","dial_code":"+90","code":"TR"},{"name":"Turkmenistan","dial_code":"+993","code":"TM"},{"name":"Turks and Caicos Islands","dial_code":"+1 649","code":"TC"},{"name":"Tuvalu","dial_code":"+688","code":"TV"},{"name":"Uganda","dial_code":"+256","code":"UG"},{"name":"Ukraine","dial_code":"+380","code":"UA"},{"name":"United Arab Emirates","dial_code":"+971","code":"AE"},{"name":"United Kingdom","dial_code":"+44","code":"GB"},{"name":"United States","dial_code":"+1","code":"US"},{"name":"Uruguay","dial_code":"+598","code":"UY"},{"name":"Uzbekistan","dial_code":"+998","code":"UZ"},{"name":"Vanuatu","dial_code":"+678","code":"VU"},{"name":"Wallis and Futuna","dial_code":"+681","code":"WF"},{"name":"Yemen","dial_code":"+967","code":"YE"},{"name":"Zambia","dial_code":"+260","code":"ZM"},{"name":"Zimbabwe","dial_code":"+263","code":"ZW"},{"name":"land Islands","dial_code":"","code":"AX"},{"name":"Antarctica","dial_code":null,"code":"AQ"},{"name":"Bolivia, Plurinational State of","dial_code":"+591","code":"BO"},{"name":"Brunei Darussalam","dial_code":"+673","code":"BN"},{"name":"Cocos (Keeling) Islands","dial_code":"+61","code":"CC"},{"name":"Congo, The Democratic Republic of the","dial_code":"+243","code":"CD"},{"name":"Cote d'Ivoire","dial_code":"+225","code":"CI"},{"name":"Falkland Islands (Malvinas)","dial_code":"+500","code":"FK"},{"name":"Guernsey","dial_code":"+44","code":"GG"},{"name":"Holy See (Vatican City State)","dial_code":"+379","code":"VA"},{"name":"Hong Kong","dial_code":"+852","code":"HK"},{"name":"Iran, Islamic Republic of","dial_code":"+98","code":"IR"},{"name":"Isle of Man","dial_code":"+44","code":"IM"},{"name":"Jersey","dial_code":"+44","code":"JE"},{"name":"Korea, Democratic People's Republic of","dial_code":"+850","code":"KP"},{"name":"Korea, Republic of","dial_code":"+82","code":"KR"},{"name":"Lao People's Democratic Republic","dial_code":"+856","code":"LA"},{"name":"Libyan Arab Jamahiriya","dial_code":"+218","code":"LY"},{"name":"Macao","dial_code":"+853","code":"MO"},{"name":"Macedonia, The Former Yugoslav Republic of","dial_code":"+389","code":"MK"},{"name":"Micronesia, Federated States of","dial_code":"+691","code":"FM"},{"name":"Moldova, Republic of","dial_code":"+373","code":"MD"},{"name":"Mozambique","dial_code":"+258","code":"MZ"},{"name":"Palestinian Territory, Occupied","dial_code":"+970","code":"PS"},{"name":"Pitcairn","dial_code":"+872","code":"PN"},{"name":"Réunion","dial_code":"+262","code":"RE"},{"name":"Russia","dial_code":"+7","code":"RU"},{"name":"Saint Barthélemy","dial_code":"+590","code":"BL"},{"name":"Saint Helena, Ascension and Tristan Da Cunha","dial_code":"+290","code":"SH"},{"name":"Saint Kitts and Nevis","dial_code":"+1 869","code":"KN"},{"name":"Saint Lucia","dial_code":"+1 758","code":"LC"},{"name":"Saint Martin","dial_code":"+590","code":"MF"},{"name":"Saint Pierre and Miquelon","dial_code":"+508","code":"PM"},{"name":"Saint Vincent and the Grenadines","dial_code":"+1 784","code":"VC"},{"name":"Sao Tome and Principe","dial_code":"+239","code":"ST"},{"name":"Somalia","dial_code":"+252","code":"SO"},{"name":"Svalbard and Jan Mayen","dial_code":"+47","code":"SJ"},{"name":"Syrian Arab Republic","dial_code":"+963","code":"SY"},{"name":"Taiwan, Province of China","dial_code":"+886","code":"TW"},{"name":"Tanzania, United Republic of","dial_code":"+255","code":"TZ"},{"name":"Timor-Leste","dial_code":"+670","code":"TL"},{"name":"Venezuela, Bolivarian Republic of","dial_code":"+58","code":"VE"},{"name":"Viet Nam","dial_code":"+84","code":"VN"},{"name":"Virgin Islands, British","dial_code":"+1 284","code":"VG"},{"name":"Virgin Islands, U.S.","dial_code":"+1 340","code":"VI"}]
这真的是不可能的。如果您不知道国家/地区代码，则无法仅通过本地电话号码确定国家/地区。
通常，没有国家/地区代码的号码与电话簿所属的用户位于同一国家/地区。因此，如果没有指定国家/地区代码，则可以仅使用用户国家/地区作为默认值。
一个可能的解决方案(也许我错了(：
- 如果是在线应用程序，您可以"扫描"以根据IP地址查找国家/地区代码，然后显示国家/地区代码。
- 或者您将国家/地区代码字段设置为必填
我已经使用以下第三方库进行了管理
import { countries } from 'countries-list'
import { getCountry } from 'react-native-localize'
import { getAll } from 'react-native-contacts'
const [contacts, setContacts] = useState<IContact[]>([])
getAll().then((phoneContacts) => {
setContacts(
phoneContacts.flatMap((contact) =>
contact.phoneNumbers.map(({ number }) => ({
name: contact.givenName + ' ' + contact.familyName,
phoneNumber: (number.startsWith('+')
? number
: '+' + countries[getCountry()].phone + number.replace(/^0+/, '')
).replace(/[- ]/g, '')
}))
)
)
})