NSUserDefaults不在Apple Watch上更新

Question

I have added a group to both my iphone target and apple watch target:

And in my AppDelegate I have this code:

  func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // Override point for customization after application launch.
    let userDefaults = NSUserDefaults(suiteName: "group.tripicons")
    userDefaults!.setObject("English", forKey: "languageOfCurrentCountry")
    userDefaults!.setObject("English", forKey: "languageOfDevice")
    userDefaults!.synchronize()
    return true
  }

However, when it says it's nil in my method:

class LanguageManager: NSObject {

  ...
  let userDefaults = NSUserDefaults(suiteName: "group.tripicons")

  func watchTranslation(word: String) -> String {
    print(userDefaults?.dictionaryRepresentation())

    // BREAKS HERE
    let language = userDefaults?.objectForKey("languageOfCurrentCountry") as! String // <---- BREAKS HERE
    ...
  }
}

The print statement prints an object without the key that I'm looking for:

Optional(["MSVLoggingMasterSwitchEnabledKey": 0, "AppleKeyboardsExpanded": 1, "AppleLanguages": (
    en
), "AppleLanguagesDidMigrate": 2.1, "NSInterfaceStyle": macintosh, "NSLanguages": (
    en
), "AppleKeyboards": (
    "en_US@hw=US;sw=QWERTY",
    "emoji@sw=Emoji",
    "en_US@hw=US;sw=QWERTY"
)])

This is even when I open up the iphone app before I open the apple watch app. Am I missing something?

== UPDATE ==

from AppDelegate:
["languageOfCurrentCountry": English, "AppleKeyboards": (
    "en_US@hw=US;sw=QWERTY",
    "emoji@sw=Emoji",
    "en_US@hw=US;sw=QWERTY"
), "AppleKeyboardsExpanded": 1, "AddingEmojiKeybordHandled": 1, "AppleLanguages": (
    "en-US"
), "ApplePasscodeKeyboards": (
    "en_US@hw=US;sw=QWERTY",
    "emoji@sw=Emoji",
    "en_US@hw=US;sw=QWERTY"
), "AppleLocale": en_US, "NSInterfaceStyle": macintosh, "MSVLoggingMasterSwitchEnabledKey": 0, "NSLanguages": (
    "en-US",
    en
), "AppleITunesStoreItemKinds": (
    audiobook,
    "tv-episode",
    booklet,
    software,
    "software-update",
    "itunes-u",
    ringtone,
    "tv-season",
    movie,
    mix,
    wemix,
    song,
    tone,
    artist,
    "podcast-episode",
    podcast,
    eBook,
    document,
    album,
    "music-video"
), "AppleLanguagesDidMigrate": 9.2, "languageOfDevice": English]

Answer 1

The exchange of data using NSUserDefaults between iPhone and Apple Watch is only available for watchOS 1.

If you are developing for watchOS 2, you should use the WatchConnectivity framework. See Apple's documentation here .