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  <author_name>jjj777</author_name>
  <author_url>https://blog.hatena.ne.jp/jjj777/</author_url>
  <blog_title>macOS/iOS API解説</blog_title>
  <blog_url>https://cocoaapi.hatenablog.com/</blog_url>
  <categories>
    <anon>Foundation</anon>
    <anon>NSArray</anon>
    <anon>10.4</anon>
    <anon>iOS2.0</anon>
    <anon>-</anon>
  </categories>
  <description>iOSでは使用出来ません（例外が投げられる） - (void)addObserver:(NSObject *)observer forKeyPath:(NSString *)keyPath options: (NSKeyValueObservingOptions)options context:(void *)context 解説 返り値 (void) なし 引数 (NSObject *)observer KVO通知に登録されたオブジェクト オブザーバーはキーバリューオブザービングメソッド observeValueForKeyPath:ofObject:change:context: を実装し…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>0011-02-18 00:00:00</published>
  <title>addObserver:forKeyPath:options:context:</title>
  <type>rich</type>
  <url>https://cocoaapi.hatenablog.com/entry/00110218/NSArray_addObserver_forKeyPath_options_context</url>
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