问iOS -3- NSTimeZone的时区缩写

EN

NSTimeZone* timeZone = [NSTimeZone timeZoneWithName:@"Pacific/Auckland"];
NSString* timeZoneName = [timeZone localizedName:NSTimeZoneNameStyleStandard
                                              locale:[NSLocale currentLocale]];
NSLog(@"%@", timeZoneName);

let timezone:TimeZone = TimeZone.init(identifier: "Pacific/Auckland") ?? TimeZone.current
print(timezone.localizedName(for: .generic, locale: .autoupdatingCurrent))
print(timezone.localizedName(for: .standard, locale: .autoupdatingCurrent))

NSMutableString * firstCharacters = [NSMutableString string];
NSArray *wordsArray = [timeZoneName componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
for (NSString * word in wordsArray){
 if ([word length] > 0){
    NSString * firstLetter = [word substringToIndex:1];
    [firstCharacters appendString:[firstLetter uppercaseString]];
 }
}
NSLog(@"%@", firstCharacters);

let fullName = timezone.localizedName(for: .standard, locale: .autoupdatingCurrent) ?? ""
var result = ""
fullName.enumerateSubstrings(in: fullName.startIndex..<fullName.endIndex, options: .byWords) { (substring, _, _, _) in
    if let substring = substring { result += substring.prefix(1) }
}
print(result)

NSDictionary *dict = [NSTimeZone abbreviationDictionary];
NSArray *abbreviations = [dict allKeysForObject:@"Pacific/Auckland"];
if (abbreviations.count > 0) {
  NSLog(@"%@", abbreviations.firstObject);
}