苹果手表上的NSUserDefaults没有更新

Question

我已经在我的iphone目标和苹果手表目标上添加了一个群：

​

​

在我的AppDelegate中有这样的代码：

  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
  }

但是，当它在我的方法中说是nil时：

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
    ...
  }
}

print语句打印一个没有我要查找的键的对象：

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"
)])

这甚至是在我打开苹果手表应用程序之前打开iphone应用程序的时候。我是不是遗漏了什么？

==更新==

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

iPhone和Apple Watch之间使用NSUserDefaults进行数据交换仅适用于watchOS 1。

如果您正在为watchOS 2进行开发，则应该使用WatchConnectivity框架。请参阅苹果的文档here。