NSLocale和国家/地区名称

Question

我使用此代码来获取iPhone所属的国家/地区：

NSLocale *locale = [NSLocale currentLocale];
NSString *countryCode = [locale objectForKey: NSLocaleCountryCode];
NSString *country = [locale displayNameForKey: NSLocaleCountryCode value: countryCode];

我希望国家名称始终使用英语，但如果iPhone使用其他任何语言，则会返回该语言的国家/地区名称...

Answer 1

查询displayName

的英语区域设置 像这样：

NSLocale *locale = [NSLocale currentLocale];
NSString *countryCode = [locale objectForKey: NSLocaleCountryCode];

NSLocale *usLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

NSString *country = [usLocale displayNameForKey: NSLocaleCountryCode value: countryCode];

Answer 2

这里有一些代码可以获取有关SWIFT中可用的NSLocale-Objects的一些信息，只需将代码放入Playground：

func printInEnglish() {

    // get all available Identifiers
    let allLocaleIdentifiers : Array<String> = NSLocale.availableLocaleIdentifiers as Array<String>

    // init an english NSLocale to get the english name of all NSLocale-Objects
    let englishLocale : NSLocale = NSLocale.init(localeIdentifier :  "en_US")

    // enumerate all available Identifiers
    for anyLocaleID in allLocaleIdentifiers {

        // get the english name
        var theEnglishName : String? = englishLocale.displayName(forKey: NSLocale.Key.identifier, value: anyLocaleID)
        if theEnglishName == nil {theEnglishName = "no english name available"}

        // create a NSLocale-Object
        let anyLocale : NSLocale  = NSLocale.init(localeIdentifier : anyLocaleID)

        // ask for CurrencyCode, CurrencySymbol and CountryCode, ... of the created NSLocale-Object
        var theCurrencyCode : String? = anyLocale.object(forKey: NSLocale.Key.currencyCode) as? String
        if theCurrencyCode == nil {theCurrencyCode = "no Currency Code available"}

        var theCurrencySymbol : String? = anyLocale.object(forKey: NSLocale.Key.currencySymbol) as? String
        if theCurrencySymbol == nil {theCurrencySymbol = "no currency symbol available"}

        var theCountryCode : String? = anyLocale.object(forKey: NSLocale.Key.countryCode) as? String
        if theCountryCode == nil {theCountryCode = "no country code available"}

        var theLanguageCode : String? = anyLocale.object(forKey: NSLocale.Key.languageCode) as? String
        if theLanguageCode == nil {theLanguageCode = "no language code available"}

        // print the result -> see the result in LoggingArea of xCode
        print("Identifier   : \(anyLocaleID)\nName         : \(theEnglishName!)\nCurrencyCode : \(theCurrencyCode!)\nSymbol       : \(theCurrencySymbol!)\nLanguageCode : \(theLanguageCode!)\nCountryCode  : \(theCountryCode!)\n----------------------------")
    }
}

printInEnglish()

你得到这种信息（例子）：