{"id":2591,"date":"2013-02-22T18:33:59","date_gmt":"2013-02-22T09:33:59","guid":{"rendered":"http:\/\/www.lancard.com\/blog\/?p=2591"},"modified":"2025-03-12T11:29:20","modified_gmt":"2025-03-12T02:29:20","slug":"rewrite-instance-method-objective-c","status":"publish","type":"post","link":"https:\/\/www.lancard.com\/blog\/2013\/02\/22\/rewrite-instance-method-objective-c\/","title":{"rendered":"Objectve-C\u3067\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u3092\u66f8\u304d\u63db\u3048\u308b"},"content":{"rendered":"<p>\u3064\u3044\u6700\u8fd1\u307e\u3067iOS\u7528\u306e\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u305d\u306e\u4e2d\u3067\u3068\u3042\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3067\u305d\u306e\u4e2d\u306e\u3068\u3042\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u306e\u51e6\u7406\u3092\u66f8\u304d\u63db\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u3002<br \/>\n\u30ab\u30c6\u30b4\u30ea\u4f7f\u3063\u3066\u66f8\u304d\u63db\u3048\u3088\u3046\u3068\u601d\u3063\u305f\u306e\u3067\u3059\u304c\u3001\u305d\u306e\u51e6\u7406\u81ea\u8eab\u304c\u30ab\u30c6\u30b4\u30ea\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u305f\u305f\u3081\u7121\u7406\u3067\u3057\u305f\u3002<\/p>\n<p>\u307e\u3042\u30e9\u30a4\u30bb\u30f3\u30b9\u306b\u554f\u984c\u306a\u3051\u308c\u3070\u30bd\u30fc\u30b9\u3092\u76f4\u63a5\u4fee\u6b63\u3059\u308c\u3070\u826f\u3044\u306e\u3067\u3059\u304c\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3068\u304b\u306b\u5099\u3048\u3066\u304a\u304d\u305f\u3044\u3068\u3053\u3067\u3059\u3002<br \/>\n\u305d\u3053\u3067class_replaceMethod\u3092\u4f7f\u3063\u3066\u66f8\u304d\u63db\u3048\u308b\u65b9\u6cd5\u306b\u843d\u3061\u7740\u304d\u307e\u3057\u305f\u3002<\/p>\n<pre lang=\"objc\" line=\"1\">\r\n\/\/ExampleClass\u306eexampleMethod\u3092\u66f8\u304d\u63db\u3048\u308b\u4f8b\r\n\r\n#import <objc\/runtime.h>\r\n\r\n...\r\n\r\nid class = [ExampleClass class];\/\/\u30af\u30e9\u30b9\u5b9a\u7fa9\u53d6\u5f97\r\nSEL sel = @selector(exampleMethod);\/\/\u30bb\u30ec\u30af\u30bf\u53d6\u5f97\r\n\r\nvoid (^block)() = ^{\r\n  \/\/\u51e6\u7406\u3092\u66f8\u304d\u63db\u3048\u308b\r\n};\r\n\r\nIMP imp = imp_implementationWithBlock(block);\/\/Blocks\u304b\u3089IMP\u3092\u751f\u6210\r\n\r\nMethod method = class_getInstanceMethod(class, sel);\/\/\u5143\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u3092\u53d6\u5f97\r\nchar* types = method_getDescription(method)->types;\/\/\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u306e\u578b\u3092\u53d6\u5f97\r\nclass_replaceMethod(class, sel, imp, types); \/\/\u66f8\u304d\u63db\u3048\uff01\r\n<\/pre>\n<p>\u3053\u308c\u3092AppDelegate\u306a\u3093\u304b\u3067\u5b9f\u884c\u3057\u3066\u304a\u3051\u3070OK\u3067\u3059\u3002<\/p>\n<a class=\"synved-social-button synved-social-button-share synved-social-size-24 synved-social-resolution-single synved-social-provider-facebook nolightbox\" data-provider=\"facebook\" target=\"_blank\" rel=\"nofollow\" title=\"Share on Facebook\" href=\"https:\/\/www.facebook.com\/sharer.php?u=https%3A%2F%2Fwww.lancard.com%2Fblog%2Fwp-json%2Fwp%2Fv2%2Fposts%2F2591&#038;t=Objectve-C%E3%81%A7%E3%82%AF%E3%83%A9%E3%82%B9%E3%81%AE%E3%82%A4%E3%83%B3%E3%82%B9%E3%82%BF%E3%83%B3%E3%82%B9%E3%83%A1%E3%82%BD%E3%83%83%E3%83%89%E3%82%92%E6%9B%B8%E3%81%8D%E6%8F%9B%E3%81%88%E3%82%8B&#038;s=100&#038;p&#091;url&#093;=https%3A%2F%2Fwww.lancard.com%2Fblog%2Fwp-json%2Fwp%2Fv2%2Fposts%2F2591&#038;p&#091;images&#093;&#091;0&#093;=&#038;p&#091;title&#093;=Objectve-C%E3%81%A7%E3%82%AF%E3%83%A9%E3%82%B9%E3%81%AE%E3%82%A4%E3%83%B3%E3%82%B9%E3%82%BF%E3%83%B3%E3%82%B9%E3%83%A1%E3%82%BD%E3%83%83%E3%83%89%E3%82%92%E6%9B%B8%E3%81%8D%E6%8F%9B%E3%81%88%E3%82%8B\" style=\"font-size: 0px;width:24px;height:24px;margin:0;margin-bottom:5px;margin-right:5px\"><img loading=\"lazy\" decoding=\"async\" alt=\"Facebook\" title=\"Share on Facebook\" class=\"synved-share-image synved-social-image synved-social-image-share\" width=\"24\" height=\"24\" style=\"display: inline;width:24px;height:24px;margin: 0;padding: 0;border: none;box-shadow: none\" src=\"https:\/\/www.lancard.com\/blog\/wp-content\/plugins\/social-media-feather\/synved-social\/image\/social\/regular\/48x48\/facebook.png\" \/><\/a><a class=\"synved-social-button synved-social-button-share synved-social-size-24 synved-social-resolution-single synved-social-provider-twitter nolightbox\" data-provider=\"twitter\" target=\"_blank\" rel=\"nofollow\" title=\"Share on Twitter\" href=\"http:\/\/twitter.com\/share?url=https%3A%2F%2Fwww.lancard.com%2Fblog%2Fwp-json%2Fwp%2Fv2%2Fposts%2F2591&#038;text=Objectve-C%E3%81%A7%E3%82%AF%E3%83%A9%E3%82%B9%E3%81%AE%E3%82%A4%E3%83%B3%E3%82%B9%E3%82%BF%E3%83%B3%E3%82%B9%E3%83%A1%E3%82%BD%E3%83%83%E3%83%89%E3%82%92%E6%9B%B8%E3%81%8D%E6%8F%9B%E3%81%88%E3%82%8B\" style=\"font-size: 0px;width:24px;height:24px;margin:0;margin-bottom:5px;margin-right:5px\"><img loading=\"lazy\" decoding=\"async\" alt=\"twitter\" title=\"Share on Twitter\" class=\"synved-share-image synved-social-image synved-social-image-share\" width=\"24\" height=\"24\" style=\"display: inline;width:24px;height:24px;margin: 0;padding: 0;border: none;box-shadow: none\" src=\"https:\/\/www.lancard.com\/blog\/wp-content\/plugins\/social-media-feather\/synved-social\/image\/social\/regular\/48x48\/twitter.png\" \/><\/a><a class=\"synved-social-button synved-social-button-share synved-social-size-24 synved-social-resolution-single synved-social-provider-linkedin nolightbox\" data-provider=\"linkedin\" target=\"_blank\" rel=\"nofollow\" title=\"Share on Linkedin\" href=\"https:\/\/www.linkedin.com\/shareArticle?mini=true&#038;url=https%3A%2F%2Fwww.lancard.com%2Fblog%2Fwp-json%2Fwp%2Fv2%2Fposts%2F2591&#038;title=Objectve-C%E3%81%A7%E3%82%AF%E3%83%A9%E3%82%B9%E3%81%AE%E3%82%A4%E3%83%B3%E3%82%B9%E3%82%BF%E3%83%B3%E3%82%B9%E3%83%A1%E3%82%BD%E3%83%83%E3%83%89%E3%82%92%E6%9B%B8%E3%81%8D%E6%8F%9B%E3%81%88%E3%82%8B\" style=\"font-size: 0px;width:24px;height:24px;margin:0;margin-bottom:5px;margin-right:5px\"><img loading=\"lazy\" decoding=\"async\" alt=\"linkedin\" title=\"Share on Linkedin\" class=\"synved-share-image synved-social-image synved-social-image-share\" width=\"24\" height=\"24\" style=\"display: inline;width:24px;height:24px;margin: 0;padding: 0;border: none;box-shadow: none\" src=\"https:\/\/www.lancard.com\/blog\/wp-content\/plugins\/social-media-feather\/synved-social\/image\/social\/regular\/48x48\/linkedin.png\" \/><\/a><a class=\"synved-social-button synved-social-button-share synved-social-size-24 synved-social-resolution-single synved-social-provider-tumblr nolightbox\" data-provider=\"tumblr\" target=\"_blank\" rel=\"nofollow\" title=\"Share on tumblr\" href=\"https:\/\/tumblr.com\/share?s=&#038;v=3&#038;t=Objectve-C%E3%81%A7%E3%82%AF%E3%83%A9%E3%82%B9%E3%81%AE%E3%82%A4%E3%83%B3%E3%82%B9%E3%82%BF%E3%83%B3%E3%82%B9%E3%83%A1%E3%82%BD%E3%83%83%E3%83%89%E3%82%92%E6%9B%B8%E3%81%8D%E6%8F%9B%E3%81%88%E3%82%8B&#038;u=https%3A%2F%2Fwww.lancard.com%2Fblog%2Fwp-json%2Fwp%2Fv2%2Fposts%2F2591\" style=\"font-size: 0px;width:24px;height:24px;margin:0;margin-bottom:5px;margin-right:5px\"><img loading=\"lazy\" decoding=\"async\" alt=\"tumblr\" title=\"Share on tumblr\" class=\"synved-share-image synved-social-image synved-social-image-share\" width=\"24\" height=\"24\" style=\"display: inline;width:24px;height:24px;margin: 0;padding: 0;border: none;box-shadow: none\" src=\"https:\/\/www.lancard.com\/blog\/wp-content\/plugins\/social-media-feather\/synved-social\/image\/social\/regular\/48x48\/tumblr.png\" \/><\/a><a class=\"synved-social-button synved-social-button-share synved-social-size-24 synved-social-resolution-single synved-social-provider-mail nolightbox\" data-provider=\"mail\" rel=\"nofollow\" title=\"Share by email\" href=\"mailto:?subject=Objectve-C%E3%81%A7%E3%82%AF%E3%83%A9%E3%82%B9%E3%81%AE%E3%82%A4%E3%83%B3%E3%82%B9%E3%82%BF%E3%83%B3%E3%82%B9%E3%83%A1%E3%82%BD%E3%83%83%E3%83%89%E3%82%92%E6%9B%B8%E3%81%8D%E6%8F%9B%E3%81%88%E3%82%8B&#038;body=%E3%82%B7%E3%82%A7%E3%82%A2%E3%81%99%E3%82%8B%EF%BC%9A:%20https%3A%2F%2Fwww.lancard.com%2Fblog%2Fwp-json%2Fwp%2Fv2%2Fposts%2F2591\" style=\"font-size: 0px;width:24px;height:24px;margin:0;margin-bottom:5px\"><img loading=\"lazy\" decoding=\"async\" alt=\"mail\" title=\"Share by email\" class=\"synved-share-image synved-social-image synved-social-image-share\" width=\"24\" height=\"24\" style=\"display: inline;width:24px;height:24px;margin: 0;padding: 0;border: none;box-shadow: none\" src=\"https:\/\/www.lancard.com\/blog\/wp-content\/plugins\/social-media-feather\/synved-social\/image\/social\/regular\/48x48\/mail.png\" \/><\/a>","protected":false},"excerpt":{"rendered":"<p>\u3064\u3044\u6700\u8fd1\u307e\u3067iOS\u7528\u306e\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u305d\u306e\u4e2d\u3067\u3068\u3042\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3067\u305d\u306e\u4e2d\u306e\u3068\u3042\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u306e\u51e6\u7406\u3092\u66f8\u304d\u63db\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u3002 \u30ab\u30c6\u30b4\u30ea\u4f7f\u3063\u3066\u66f8\u304d\u63db\u3048\u3088\u3046\u3068\u601d\u3063\u305f\u306e\u3067 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2591","post","type-post","status-publish","format-standard","hentry","category-iphoneipad"],"_links":{"self":[{"href":"https:\/\/www.lancard.com\/blog\/wp-json\/wp\/v2\/posts\/2591","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lancard.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lancard.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lancard.com\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lancard.com\/blog\/wp-json\/wp\/v2\/comments?post=2591"}],"version-history":[{"count":8,"href":"https:\/\/www.lancard.com\/blog\/wp-json\/wp\/v2\/posts\/2591\/revisions"}],"predecessor-version":[{"id":2599,"href":"https:\/\/www.lancard.com\/blog\/wp-json\/wp\/v2\/posts\/2591\/revisions\/2599"}],"wp:attachment":[{"href":"https:\/\/www.lancard.com\/blog\/wp-json\/wp\/v2\/media?parent=2591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lancard.com\/blog\/wp-json\/wp\/v2\/categories?post=2591"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lancard.com\/blog\/wp-json\/wp\/v2\/tags?post=2591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}