{"id":14149,"date":"2021-08-29T11:02:00","date_gmt":"2021-08-29T02:02:00","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=14149"},"modified":"2023-05-28T08:37:16","modified_gmt":"2023-05-27T23:37:16","slug":"%e3%80%90%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3%e3%80%91%e3%80%8cobserver%e3%80%8d%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=14149","title":{"rendered":"\u3010\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3011\u300cObserver\u300d\u30d1\u30bf\u30fc\u30f3\u3001\u5b9f\u88c5\u65b9\u6cd5"},"content":{"rendered":"<h2>Observer\u30d1\u30bf\u30fc\u30f3\u3068\u306f\uff1f<\/h2>\n<p>\u8981\u306f<span style=\"color: #ff0000;\"><strong>\u300c\u901a\u77e5\u304c\u6b32\u3057\u3044\u3068\u304d\u300d<\/strong><\/span>\u306e\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002\u3069\u3053\u304b1\u7b87\u6240\u306e\u30af\u30e9\u30b9\u3067\u76e3\u8996\u3055\u305b\u3066\u304a\u3044\u3066\u5024\u304c\u5909\u308f\u3063\u305f\u3089\u5168\u3066\u306e\u4f9d\u5b58\u3059\u308b\u30af\u30e9\u30b9\u306b\u5bfe\u3057\u3066\u901a\u77e5\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p>\u300cObserver\uff1a\u89b3\u5bdf\u3059\u308b\u5074\u300d\u3068\u300cSubject\uff1a\u89b3\u5bdf\u3055\u308c\u308b\u5074\u300d\u306e\u5f79\u5272\u3092\u6301\u305f\u305b\u3066Subject\u306e\u72b6\u614b\u5909\u5316\u306b\u5fdc\u3058\u3066Observer\u306b\u901a\u77e5\u3055\u308c\u308b\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3002<\/p>\n<h3>\u786c\u3044\u5b9a\u7fa9<\/h3>\n<p>\u3042\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u5909\u66f4\u3055\u308c\u305f\u3068\u304d\u306b\u3001\u4f9d\u5b58\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5168\u3066\u306b\u81ea\u52d5\u7684\u306b\u901a\u77e5\u3055\u308c\u3066\u305d\u308c\u3089\u304c\u81ea\u52d5\u7684\u306b\u66f4\u65b0\u3055\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u300c1\uff1a\u591a\u300d\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u30d1\u30bf\u30fc\u30f3\u3002<\/p>\n<h2>\u3053\u306e\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u308f\u306a\u3044\u5834\u5408\u306e\u554f\u984c\u70b9<\/h2>\n<p>Observer\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u308f\u306a\u3044\u5834\u5408\u306e\u5b9f\u88c5\u65b9\u5f0f\u3068\u3057\u3066\u306f<span style=\"color: #ff0000;\"><strong>Timer\u306a\u3069\u3092\u5e38\u99d0\u3055\u305b\u3066\u304a\u304f\u65b9\u5f0f<\/strong><\/span>\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u30e1\u30a4\u30f3\u753b\u9762\u3067\u30bf\u30a4\u30de\u30fc\u3092\u898b\u306b\u884c\u304d\u3001\u30b5\u30d6\u753b\u9762\u3067\u3082\u30bf\u30a4\u30de\u30fc\u3092\u898b\u306b\u884c\u304b\u305b\u308b\u3088\u3046\u306a\u5b9f\u88c5\u3067\u3059\u3002\u305d\u306e\u5834\u5408\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u554f\u984c\u70b9\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30e1\u30a4\u30f3\u753b\u9762\u3068\u30b5\u30d6\u753b\u9762\u3067\u305d\u308c\u305e\u308c\u30bf\u30a4\u30de\u30fc\u3092\u751f\u6210\u3059\u308b\u306e\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u6570\u304c\u5897\u3048\u308b\u3002<\/li>\n<li>\u30e1\u30a4\u30f3\u753b\u9762\u3068\u30b5\u30d6\u753b\u9762\u3067\u5225\u3005\u306b\u8d77\u52d5\u3059\u308b\u306e\u3067\u3069\u3046\u3057\u3066\u3082\u30bf\u30a4\u30e0\u30e9\u30b0\u304c\u3067\u304d\u308b\u3002<\/li>\n<li>\u3067\u304d\u308b\u3060\u3051\u30e9\u30b0\u3092\u751f\u307e\u306a\u3044\u3088\u3046\u306b\u30a4\u30f3\u30bf\u30fc\u30d0\u30eb\u3092\u77ed\u304f\u3057\u305f\u3068\u3057\u3066\u3082\u30bf\u30a4\u30de\u30fc\u306e\u8ca0\u8377\u304c\u5897\u3048\u308b\u3002<\/li>\n<\/ul>\n<h2>\u5f79\u5272<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-17433\" src=\"http:\/\/www.code-magagine.com\/wp-content\/uploads\/2021\/08\/-2022-06-05-12.27.14-e1654399676959.png\" alt=\"\" width=\"300\" height=\"177\" \/><\/p>\n<h3>Subject\uff08\u300cPublish\uff1a\u767a\u884c\u300d\u3068\u3082\u547c\u3070\u308c\u308b\u5834\u5408\u3082\u3042\u308b\uff09<\/h3>\n<p>\u89b3\u5bdf\u3055\u308c\u308b\u5074\u3002\u5024\u304c\u5909\u308f\u3063\u305f\u3089\u901a\u77e5\u3057\u307e\u3059\u3002\u300c1\uff1a\u591a\u300d\u306e\u300c1\u5074\u300d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>observer\u3092\u767b\u9332\u3001\u524a\u9664\u3059\u308b\u7bb1\u3092\u6301\u305f\u305b\u308b\u3002\u307e\u305fobserver\u306b\u901a\u77e5\u3059\u308b\u30e1\u30bd\u30c3\u30c9\uff08\u72b6\u614b\u304c\u5909\u5316\u3057\u305f\u969b\u306bObserver\u306b\u901a\u77e5\u3059\u308b\u30e1\u30bd\u30c3\u30c9\uff09\u3082\u6301\u305f\u305b\u308b\u3002\uff08\u3053\u308c\u306fpush\u578b\u3068\u8a00\u308f\u308c\u307e\u3059\u3002\uff09<\/p>\n<h3>Observer(\u300cSubsclibe\uff1a\u8cfc\u8aad\u300d\u3068\u3082\u547c\u3070\u308c\u308b\u5834\u5408\u3082\u3042\u308b\u3002\uff09<\/h3>\n<p>\u89b3\u5bdf\u3059\u308b\u5074\u3002\u5024\u304c\u5909\u308f\u3063\u305f\u3089\u6559\u3048\u3089\u308c\u308b\u5074\u3067\u3059\u3002\u300c1\uff1a\u591a\u300d\u306e\u300c\u591a\u5074\u300d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>subject\u306e\u72b6\u614b\u5909\u5316\u3092\u76e3\u8996\u3059\u308b\u3002\u5404observer\u3054\u3068\u306e\u51e6\u7406\u3092\u5b9f\u88c5\u3055\u305b\u308b\u3002<\/p>\n<h2>\u7528\u9014\u306e\u4f8b<\/h2>\n<ul>\n<li>\u301c\u306e\u51e6\u7406\u304c\u5b8c\u4e86\u3057\u305f\u3089\u30ed\u30b0\u306b\u66f8\u304d\u51fa\u3059\u3002<\/li>\n<li>\u30e1\u30a4\u30f3\u753b\u9762\u306e\u72b6\u614b\u304c\u5909\u308f\u3063\u305f\u3089\u3001\u30b5\u30d6\u753b\u9762\uff08\u30e2\u30fc\u30c0\u30eb\u306a\u3069\uff09\u306e\u72b6\u614b\u3082\u5909\u308f\u3063\u3066\u72b6\u614b\u304c\u53cd\u6620\u3055\u308c\u308b\u3053\u3068\u3002<\/li>\n<\/ul>\n<h2>\u5b9f\u88c5\u65b9\u6cd5<\/h2>\n<p>\u30d5\u30bf\u901a\u308a\u3042\u308a\u307e\u3059\u304c\u3001\u57fa\u672c\u7684\u306b\u3069\u3061\u3089\u3082<span style=\"color: #ff0000;\"><strong>\u300c\u7247\u65b9\u306e\u72b6\u614b\u304c\u5909\u308f\u3063\u305f\u3089\u3082\u3046\u7247\u65b9\u306b\u901a\u77e5\u3057\u3066\u72b6\u614b\u3092\u5909\u66f4\u3059\u308b\u300d<\/strong><\/span>\u3068\u3044\u3063\u305f\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>delegate\u3092\u4f7f\u3063\u3066\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\uff08\u4e3b\u306b\u300cC#\u300d\u306b\u306a\u308a\u307e\u3059\u3002\uff09<\/h3>\n<p>C#\u3092\u4f7f\u3063\u3066\u3044\u308b\u306e\u3067\u3042\u308c\u3070\u3053\u3061\u3089\u306e\u65b9\u304c\u5b9f\u88c5\u306f\u7c21\u5358\u3067\u3059\u3002\u305d\u306e\u969b\u306f\u3001\u7247\u65b9\u3092\u7d42\u4e86\u3057\u305f\u969b\u306b\u3082\u3046\u7247\u65b9\u3078\u306e\u901a\u77e5\u304c\u884c\u304b\u306a\u304f\u306a\u308b\u3088\u3046\u306bdispose\uff08\u7834\u68c4\uff09\u3059\u308b\u306e\u3092\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>delegate\u3068\u306f\uff1f<\/h4>\n<p>\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u767b\u9332\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u540c\u3058\u30af\u30e9\u30b9\u306e\u753b\u9762\u3092\u304b\u305f\u3069\u3063\u3066\u8907\u6570\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u308b\u5834\u5408\u306b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u6e21\u3057\u3066\u3044\u308b\u3060\u3051\u306a\u306e\u3067\u3001\u7247\u65b9\u306e\u753b\u9762\u306b\u3057\u304b\u5f71\u97ff\u3057\u306a\u3044\u3088\u3046\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u5b9f\u88c5<\/h2>\n<h3>\u30a4\u30e1\u30fc\u30b8\u56f3<\/h3>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-17454\" src=\"http:\/\/www.code-magagine.com\/wp-content\/uploads\/2022\/06\/-2022-06-11-8.13.00-e1654902825820.png\" alt=\"\" width=\"300\" height=\"244\" \/><\/p>\n<h3>\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f<\/h3>\n<p>Subject\uff08\u901a\u77e5\u8005\uff09\u306e\u65b9\u306bObserver\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9(\u8cfc\u8aad\u8005\u3001Observer1\u3001Observer2)\u3092\u6295\u3052\u3066\u304a\u3044\u3066\u3001Subject\u306e\u65b9\u306b\u901a\u77e5\u3057\u3066\u3082\u3089\u3046\u5f62\u306b\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n<h3>Subject<\/h3>\n<h4>add<\/h4>\n<p>Observer\u3092list\u306a\u3069\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<h4>remove<\/h4>\n<p>Observer\u3092list\u304b\u3089\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n<h4>notify<\/h4>\n<p>Observer\u306b\u901a\u77e5\u3057\u307e\u3059\u3002Observer\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306eupdate\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u307e\u3059\u3002\uff08for\u6587\u3067\u56de\u3057\u3066\u5168\u3066\u306eObserver\u306b\u5bfe\u3057\u3066update\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\uff09<\/p>\n<p>\u306a\u304a\u3001delegate\u306a\u3069\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001invoke\u3067\u4e00\u767a\u3067\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>Subject\u5074\u306e\u5b9f\u88c5\u65b9\u91dd<\/h3>\n<p>Subject\u3092\u62bd\u8c61\u30af\u30e9\u30b9\u306b\u3059\u308b\u304b\u3001static\u30af\u30e9\u30b9\u306b\u3059\u308b\u304b\u3002<\/p>\n<h4>static\u30af\u30e9\u30b9<\/h4>\n<p>\u30b7\u30f3\u30d7\u30eb\u306b\u5b9f\u88c5\u3059\u308b\u306e\u3067\u3042\u308c\u3070\u3053\u308c\u3067\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h4>\u62bd\u8c61\u30af\u30e9\u30b9<\/h4>\n<p>\u30c6\u30b9\u30c8\u99c6\u52d5\u306e\u89b3\u70b9\u3067\u8a00\u3048\u3070\u62bd\u8c61\u30af\u30e9\u30b9\u306b\u3057\u305f\u65b9\u304c\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306f\u66f8\u304d\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002static\u30af\u30e9\u30b9\u3060\u3068\u672c\u5f53\u306b\u52d5\u304b\u3055\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u306e\u3067\u30c6\u30b9\u30c8\u304c\u3057\u305a\u3089\u3044\u3067\u3059\u3002<\/p>\n<p>\u672c\u6765\u306f\u5b9f\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u307f\u306b\u3044\u304f\u304c\u3001\u30d5\u30a7\u30a4\u30af\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u307f\u306b\u3044\u304f\u3088\u3046\u306a\u5b9f\u88c5\u306b\u5909\u66f4\u3057\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n<h3>IObserver<\/h3>\n<p>\u305f\u3060\u30011\u500b1\u500b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092Subject\u304b\u3089\u547c\u3076\u3088\u3046\u306b\u3059\u308b\u306e\u306f\u3060\u308b\u3044\u3067\u3059\u3057\u3001\u758e\u7d50\u5408\u306b\u3057\u305f\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3001Observer\u3092\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5316\u3057\u3066\u304a\u3044\u3066Subject\u5074\u304b\u3089\u306f\u305d\u308c\u3092\u547c\u3076\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h4>\u547d\u540d<\/h4>\n<p>\u300cINotify\u300d\u306a\u3069\u3068\u4ed8\u3051\u307e\u3059\u3002<\/p>\n<h3>Observer\u306e\u5b9f\u88c5\u30af\u30e9\u30b9<\/h3>\n<p>Subject\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3067\u4fdd\u6301\u3057\u3066\u304a\u304d\u307e\u3059\u3002\uff08\u96c6\u7d04\uff09<\/p>\n<h4>update<\/h4>\n<p>Subject\u5074\u3067\u901a\u77e5\u6642\u306b\u547c\u3070\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002\u5b9f\u88c5\u30af\u30e9\u30b9\u3067\u306f\u901a\u77e5\u6642\u306b\u5b9f\u884c\u3057\u305f\u3044\u51e6\u7406\u3092\u5b9f\u88c5\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<h4>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u751f\u6210\u6642<\/h4>\n<p>Subject\u306b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\uff08Subject\u306eadd\u3092\u547c\u3073\u307e\u3059\u3002\uff09<\/p>\n<h4>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u7834\u68c4\u6642<\/h4>\n<p>Subject\u304b\u3089\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u7834\u68c4\u3057\u307e\u3059\u3002\uff08Subject\u306eremove\u3092\u547c\u3073\u307e\u3059\u3002\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"Observer\u30d1\u30bf\u30fc\u30f3\u3068\u306f\uff1f \u8981\u306f\u300c\u901a\u77e5\u304c\u6b32\u3057\u3044\u3068\u304d\u300d\u306e\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002\u3069\u3053\u304b1\u7b87\u6240\u306e\u30af\u30e9\u30b9\u3067\u76e3\u8996\u3055\u305b\u3066\u304a\u3044\u3066\u5024\u304c\u5909\u308f\u3063\u305f\u3089\u5168\u3066\u306e\u4f9d\u5b58\u3059\u308b\u30af\u30e9\u30b9\u306b\u5bfe\u3057\u3066\u901a\u77e5\u3092\u884c\u3044\u307e\u3059\u3002 \u300cObserver\uff1a\u89b3\u5bdf\u3059\u308b\u5074\u300d\u3068\u300cSub [&hellip;]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/14149"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14149"}],"version-history":[{"count":21,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/14149\/revisions"}],"predecessor-version":[{"id":20771,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/14149\/revisions\/20771"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14149"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}