Cannot subscript a value of type ‘[AnyObject]?’ with an index of type ‘Int’
\n<\/p>\n
\u30a8\u30e9\u30fc\u6587\u304c\u308f\u304b\u308a\u3065\u3089\u3044…<\/p>\n
Cannot “subscript” a value of type
\nsubscript \u3068\u306f\u3001\u914d\u5217\u3078\u306e\u8981\u7d20\u3078\u30a2\u30af\u30bb\u30b9\u3059\u308b\u969b\u306e [“hoge”] \u307f\u305f\u3044\u306a\u3082\u306e<\/p>\n
\r\n\/\/'[AnyObject]?' with an index of type 'Int' \u306e\u5834\u5408\u306f\r\nvar arr : [AnyObject]?\r\n\/\/ \u3068\u306a\u3063\u3066\u3044\u308b\u6642\u306b\u51fa\u308b\u3002 \u914d\u5217\u304cOptional\u3060\u304b\u3089\u306a\u306e\u3067\u78ba\u5b9a\u3057\u3066\u304b\u3089 dict![0] \u306e\u3088\u3046\u306b\u53d6\u308a\u51fa\u305b\u308b\r\nlet dat = arr![0]\r\n\/\/ \u5b89\u5168\u306b\u53d6\u308a\u51fa\u3059\u306a\u3089 guard \u3092\u4f7f\u3063\u305f\u308a...\r\nguard let dat = arr?[0] else {\r\n return\r\n}\r\n\r\n\/\/ \u8f9e\u66f8\u578b\u306f\u3001\r\nlet dict : [String : String] = ["Yamamoto" : "\u7537\u6027"] \r\n\/\/ \u306b\u3001 dict[0] \u3067\u53d6\u308a\u51fa\u3059\u3068 Cannot subscript a value of type \u3092\u51fa\u3059\u304c\r\n\/\/ \u3053\u3061\u3089\u306fKey\u304cString\u306e\u305f\u3081 ("Yamamoto" \u306e\u65b9\r\nlet gend = dict["Yamamoto"] \/\/\u306a\u3089\u3044\u3051\u308b\r\n<\/pre>\n
\n \u3053\u306e\u8a18\u4e8b\u3092\u66f8\u3044\u305f\u5f53\u6642\u306f\u3001tabbar\u306e viewControllers \u306f AnyObject \u3060\u3063\u305f… \u3060\u304b\u3089\u4e0b\u306e\u306f(\u8a00\u3063\u3066\u308b\u3053\u3068\u3082)\u9055\u3044\u307e\u3059\u304c\u3001\u6b8b\u3057\u3066\u3042\u308a\u307e\u3059<\/strong><\/p>\n\u3084\u308d\u3046\u3068\u3057\u305f\u3053\u3068\u306f\u3001TabBar\u306eviewControllers\u3092\u6bd4\u8f03\u3057\u3088\u3046\u3068\u3057\u305f\u6642<\/p>\n
\r\nfunc tabBarController(tabBarController: UITabBarController, shouldSelectViewController viewController: UIViewController) -> Bool {\r\n\/\/ Cannot subscript a value of type '[AnyObject]?' with an index of type 'Int'\r\nvar vc : UIViewController = self.viewControllers[1] as! UIViewController;\r\n\/\/~~\r\n}\r\n<\/pre>\n“Cannot subscript a value of type ‘[AnyObject]?’ with an index of type ‘Int'”<\/p>\n
\u3042\u3068… viewControllers\u81ea\u4f53\u304cOptional\u306a\u306e\u3067 ! \u3092\u3064\u3051\u308b<\/p>\n
\u6b63\u89e3<\/p>\n
\r\nfunc tabBarController(tabBarController: UITabBarController, shouldSelectViewController viewController: UIViewController) -> Bool {\r\n\/\/var vc : UIViewController = self.viewControllers[1] as! UIViewController;\r\nvar vc : UIViewController = self.viewControllers![1] as! UIViewController;\r\n\/\/~~\r\n}\r\n<\/pre>\n\u5b89\u5168\u306e\u305f\u3081\u306b<\/p>\n
\r\nif let vc = self.viewControllers?[1] as? UIViewController {\r\n\r\n}\r\n<\/pre>\n\u3068\u304b\u66f8\u3044\u305f\u307b\u3046\u304c\u3044\u3044\u304b\u3082..<\/p>\n
\u3067\u306f\u3067\u306f<\/p>\n","protected":false},"excerpt":{"rendered":"
Cannot subscript a value of type ‘[AnyObject]?’ with an index of type ‘Int’<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-483","post","type-post","status-publish","format-standard","hentry","category-swift"],"_links":{"self":[{"href":"https:\/\/www.nukoneko.info\/blog\/index.php?rest_route=\/wp\/v2\/posts\/483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nukoneko.info\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nukoneko.info\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nukoneko.info\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nukoneko.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=483"}],"version-history":[{"count":4,"href":"https:\/\/www.nukoneko.info\/blog\/index.php?rest_route=\/wp\/v2\/posts\/483\/revisions"}],"predecessor-version":[{"id":525,"href":"https:\/\/www.nukoneko.info\/blog\/index.php?rest_route=\/wp\/v2\/posts\/483\/revisions\/525"}],"wp:attachment":[{"href":"https:\/\/www.nukoneko.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nukoneko.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nukoneko.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}