从UIFont或CGFont-iOS、Swift获取元信息

我想从字体中获取元信息。例如：支持的语言、版本、许可证等。我如何才能做到这一点？它在Mac字体应用程序上运行良好。我需要在iOS上实现这一点

您可以使用

CTFontCopyName

获取大部分信息。例如，您可以按如下方式打印字体的版权和许可证：

print(CTFontCopyName(font, kCTFontCopyrightNameKey))
print(CTFontCopyName(font, kCTFontLicenseNameKey))

键常量的格式为

kCTFont***NameKey

，并在CTFont.h中声明

您可以使用

CTFontCopySupportedLanguages

获取支持的语言，但您可以获得BCP-47语言标识符列表：

import CoreText
import Foundation

let font = CTFontCreateWithName("Helvetica" as CFString, 12, nil)
let languageIds = CTFontCopySupportedLanguages(font) as! [String]
print(languageIds.joined(separator: ", "))

// Output:

af, agq, ak, asa, ast, az, bas, be, bem, bez, bg, bm, br, bs, ca, ce, cgg, cs, cy, da, dav, de, dje, dsb, dyo, ebu, el, en, eo, es, et, eu, ewo, fi, fil, fo, fr, fur, fy, ga, gd, gl, gsw, guz, gv, haw, hr, hsb, hu, id, ig, is, it, jmc, ka, kam, kde, kea, khq, ki, kk, kl, kln, ksb, ksf, ksh, kw, lag, lb, lg, lkt, ln, lt, lu, luo, luy, lv, mas, mer, mfe, mg, mgh, mgo, mk, mn, ms, mt, naq, nb, nd, nl, nmg, nn, nnh, nyn, om, os, pl, pt, qu, rm, rn, ro, rof, ru, rw, rwk, saq, sbp, se, seh, ses, sg, sk, sl, smn, sn, so, sq, sr, sv, sw, teo, tg, tk, to, tr, twq, uk, uz, vi, vun, wae, xog, yav, yo, zu

您可以使用

区域设置

将它们转换为人类可读的语言名称。您可能希望使用用户选择的系统区域设置：

let myLocale = Locale.autoupdatingCurrent
let languageNames = languageIds.compactMap({ myLocale.localizedString(forLanguageCode: $0) })
print(languageNames.joined(separator: ", "))

// Output:

Afrikaans, Aghem, Akan, Asu, Asturian, Azerbaijani, Basaa, Belarusian, Bemba, Bena, Bulgarian, Bambara, Breton, Bosnian, Catalan, Chechen, Chiga, Czech, Welsh, Danish, Taita, German, Zarma, Lower Sorbian, Jola-Fonyi, Embu, Greek, English, Esperanto, Spanish, Estonian, Basque, Ewondo, Finnish, Filipino, Faroese, French, Friulian, Western Frisian, Irish, Scottish Gaelic, Galician, Swiss German, Gusii, Manx, Hawaiian, Croatian, Upper Sorbian, Hungarian, Indonesian, Igbo, Icelandic, Italian, Machame, Georgian, Kamba, Makonde, Kabuverdianu, Koyra Chiini, Kikuyu, Kazakh, Kalaallisut, Kalenjin, Shambala, Bafia, Colognian, Cornish, Langi, Luxembourgish, Ganda, Lakota, Lingala, Lithuanian, Luba-Katanga, Luo, Luyia, Latvian, Masai, Meru, Morisyen, Malagasy, Makhuwa-Meetto, Metaʼ, Macedonian, Mongolian, Malay, Maltese, Nama, Norwegian Bokmål, North Ndebele, Dutch, Kwasio, Norwegian Nynorsk, Ngiemboon, Nyankole, Oromo, Ossetic, Polish, Portuguese, Quechua, Romansh, Rundi, Romanian, Rombo, Russian, Kinyarwanda, Rwa, Samburu, Sangu, Northern Sami, Sena, Koyraboro Senni, Sango, Slovak, Slovenian, Inari Sami, Shona, Somali, Albanian, Serbian, Swedish, Swahili, Teso, Tajik, Turkmen, Tongan, Turkish, Tasawaq, Ukrainian, Uzbek, Vietnamese, Vunjo, Walser, Soga, Yangben, Yoruba, Zulu

---

我不知道如何获取字体支持的脚本。

您可以使用

ctfontcypyname

获取大部分信息。例如，您可以按如下方式打印字体的版权和许可证：

print(CTFontCopyName(font, kCTFontCopyrightNameKey))
print(CTFontCopyName(font, kCTFontLicenseNameKey))

键常量的格式为

kCTFont***NameKey

，并在CTFont.h中声明

您可以使用

CTFontCopySupportedLanguages

获取支持的语言，但您可以获得BCP-47语言标识符列表：

import CoreText
import Foundation

let font = CTFontCreateWithName("Helvetica" as CFString, 12, nil)
let languageIds = CTFontCopySupportedLanguages(font) as! [String]
print(languageIds.joined(separator: ", "))

// Output:

af, agq, ak, asa, ast, az, bas, be, bem, bez, bg, bm, br, bs, ca, ce, cgg, cs, cy, da, dav, de, dje, dsb, dyo, ebu, el, en, eo, es, et, eu, ewo, fi, fil, fo, fr, fur, fy, ga, gd, gl, gsw, guz, gv, haw, hr, hsb, hu, id, ig, is, it, jmc, ka, kam, kde, kea, khq, ki, kk, kl, kln, ksb, ksf, ksh, kw, lag, lb, lg, lkt, ln, lt, lu, luo, luy, lv, mas, mer, mfe, mg, mgh, mgo, mk, mn, ms, mt, naq, nb, nd, nl, nmg, nn, nnh, nyn, om, os, pl, pt, qu, rm, rn, ro, rof, ru, rw, rwk, saq, sbp, se, seh, ses, sg, sk, sl, smn, sn, so, sq, sr, sv, sw, teo, tg, tk, to, tr, twq, uk, uz, vi, vun, wae, xog, yav, yo, zu

您可以使用

区域设置

将它们转换为人类可读的语言名称。您可能希望使用用户选择的系统区域设置：

let myLocale = Locale.autoupdatingCurrent
let languageNames = languageIds.compactMap({ myLocale.localizedString(forLanguageCode: $0) })
print(languageNames.joined(separator: ", "))

// Output:

Afrikaans, Aghem, Akan, Asu, Asturian, Azerbaijani, Basaa, Belarusian, Bemba, Bena, Bulgarian, Bambara, Breton, Bosnian, Catalan, Chechen, Chiga, Czech, Welsh, Danish, Taita, German, Zarma, Lower Sorbian, Jola-Fonyi, Embu, Greek, English, Esperanto, Spanish, Estonian, Basque, Ewondo, Finnish, Filipino, Faroese, French, Friulian, Western Frisian, Irish, Scottish Gaelic, Galician, Swiss German, Gusii, Manx, Hawaiian, Croatian, Upper Sorbian, Hungarian, Indonesian, Igbo, Icelandic, Italian, Machame, Georgian, Kamba, Makonde, Kabuverdianu, Koyra Chiini, Kikuyu, Kazakh, Kalaallisut, Kalenjin, Shambala, Bafia, Colognian, Cornish, Langi, Luxembourgish, Ganda, Lakota, Lingala, Lithuanian, Luba-Katanga, Luo, Luyia, Latvian, Masai, Meru, Morisyen, Malagasy, Makhuwa-Meetto, Metaʼ, Macedonian, Mongolian, Malay, Maltese, Nama, Norwegian Bokmål, North Ndebele, Dutch, Kwasio, Norwegian Nynorsk, Ngiemboon, Nyankole, Oromo, Ossetic, Polish, Portuguese, Quechua, Romansh, Rundi, Romanian, Rombo, Russian, Kinyarwanda, Rwa, Samburu, Sangu, Northern Sami, Sena, Koyraboro Senni, Sango, Slovak, Slovenian, Inari Sami, Shona, Somali, Albanian, Serbian, Swedish, Swahili, Teso, Tajik, Turkmen, Tongan, Turkish, Tasawaq, Ukrainian, Uzbek, Vietnamese, Vunjo, Walser, Soga, Yangben, Yoruba, Zulu

我不知道如何获得字体支持的脚本