ios - NSLocale 到国家名称

Question

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Answer 1

正在处理 this SO question , 我做了一个 Swift 翻译。试试这个:

let locale: NSLocale = NSLocale(localeIdentifier: result.locale!)
let countryCode = locale.objectForKey(NSLocaleCountryCode) as String
var country: String? = locale.displayNameForKey(NSLocaleCountryCode, value: countryCode)

// According to the docs, "Not all locale property keys
// have values with display name values" (thus why the 
// "country" variable's an optional). But if this one
// does have a display name value, you can print it like so.
if let foundCounty = country {
    print(foundCounty)
}

针对 Swift 4 更新:

FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"locale"]).start { (connection, result, error) in

    guard let resultDictionary = result as? [String:Any], 
          let localeIdentifier = resultDictionary["locale"] as? String else {
        return
    }

    let locale: NSLocale = NSLocale(localeIdentifier: localeIdentifier)

    if let countryCode = locale.object(forKey: NSLocale.Key.countryCode) as? String,
       let country = locale.displayName(forKey: NSLocale.Key.countryCode, value: countryCode) {
        print(country)
    }
}