{"id":2749,"date":"2024-11-07T12:29:07","date_gmt":"2024-11-07T03:29:07","guid":{"rendered":"https:\/\/www.spread1.co.jp\/wp\/?p=2749"},"modified":"2024-11-07T12:30:40","modified_gmt":"2024-11-07T03:30:40","slug":"post-2749","status":"publish","type":"post","link":"https:\/\/www.spread1.co.jp\/wp\/post-2749\/","title":{"rendered":"\u3010kotlin\u3011\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u30d1\u30bf\u30fc\u30f3\u306e\u51e6\u7406\u3092suspend\u95a2\u6570\u306b\u5909\u63db\u3057\u3001\u76f4\u5217\u7684\u306b\u6271\u3046"},"content":{"rendered":"\n<p>\u975e\u540c\u671f\u51e6\u7406\u3092\u6271\u3046\u624b\u6cd5\u306e\u4e00\u3064\u3068\u3057\u3066\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u30d1\u30bf\u30fc\u30f3\u304c\u3042\u308a\u307e\u3059\u3002<br>\u6642\u9593\u306e\u304b\u304b\u308b\u51e6\u7406\u3092\u975e\u540c\u671f\u3067\u5b9f\u884c\u3057\u3001\u5b8c\u4e86\u5f8c\u306b\u884c\u3046\u5f8c\u7d9a\u51e6\u7406\u3092\u4e88\u3081\u6307\u5b9a\u3057\u3066\u304a\u304f\u3082\u306e\u3067\u3059\u304c\u3001\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u30d1\u30bf\u30fc\u30f3\u306b\u306f\u51e6\u7406\u306e\u5b9f\u884c\u9806\u5e8f\u304c\u5206\u304b\u308a\u306b\u304f\u3044\u3068\u3044\u3046\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002<br>\u305d\u308c\u306b\u5bfe\u3057\u3001kotlin\u306esuspend\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u975e\u540c\u671f\u51e6\u7406\u306e\u5229\u70b9\u3092\u6d3b\u304b\u3057\u3064\u3064\u540c\u671f\u51e6\u7406\u306e\u3088\u3046\u306b\u4e0a\u304b\u3089\u9806\u756a\u306b\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5143\u3005suspend\u95a2\u6570\u3068\u3057\u3066\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u6a5f\u80fd\u3067\u3042\u308c\u3070\u3088\u3044\u306e\u3067\u3059\u304c\u3001\u5229\u7528\u3057\u305f\u3044\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u305f\u307e\u305f\u307e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u30d1\u30bf\u30fc\u30f3\u3060\u3063\u305f\u3068\u304d\u3001\u305d\u308c\u3092susupend\u95a2\u6570\u3068\u3057\u3066\u76f4\u5217\u7684\u306b\u6271\u3048\u308b\u3088\u3046\u30e9\u30c3\u30d7\u3057\u3066\u307f\u307e\u3059\u3002<br>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u51e6\u7406\u304c\u3042\u3063\u305f\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">fun someFunctionWithCallback(param: String, callback: (result: Boolean) -> Unit)\n{\n    ...\n}\n\nfun procCallabck()\n{\n    Log.d(TAG, \"\u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff11\")\n\n    someFunctionWithCallback(\"some param\") { result: Boolean ->\n        Log.d(TAG, \"\u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff12\")\n        if (result) {\n            \/\/ do something when succeeded...\n        } else {\n            \/\/ do something when failed...\n        }\n        Log.d(TAG, \"\u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff13\")\n    }\n\n    Log.d(TAG, \"\u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff14\")\n}<\/pre>\n\n\n\n<p>\u4e0a\u8a18\u306eprocCallabck\u306e\u51e6\u7406\u306b\u3066\uff14\u7b87\u6240\u3067\u30ed\u30b0\u51fa\u529b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u30ed\u30b0\u304c\u8868\u793a\u3055\u308c\u308b\u9806\u5e8f\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3068\u306a\u308a\u3001\u4e0a\u304b\u3089\u9806\u756a\u306b\u306f\u51e6\u7406\u3055\u308c\u307e\u305b\u3093\u3002<br> &#8211; \u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff11<br> &#8211; \u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff14<br> &#8211; \u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff12<br> &#8211; \u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff13<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u3001\u3053\u306esomeFunctionWithCallback\u3092suspend\u95a2\u6570\u3067\u30e9\u30c3\u30d7\u3057\u3001\u4e0a\u304b\u3089\u9806\u756a\u306b\u51e6\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"kotlin\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">suspend fun serialFunction(param: String): Boolean\n{\n    return withContext(Dispatchers.IO) {\n        val future = CompletableFuture&lt;Boolean>()\n\n        someFunctionWithCallback(param) { result ->\n            future.complete(result)\n        }\n\n        try {\n            future.get(10L, TimeUnit.SECONDS) \/\/ withContext\u306e\u623b\u308a\u5024\n        } catch (ignore: TimeoutException) {\n            false \/\/ withContext\u306e\u623b\u308a\u5024\n        }\n    }\n}<\/pre>\n\n\n\n<p>\u65b0\u305f\u306asuspend\u95a2\u6570\u3068\u3057\u3066serialFunction\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002<br>\u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308b\u306e\u306f\u3001CompletableFuture\u30af\u30e9\u30b9\u3067\u3059\u3002future.get(10L, TimeUnit.SECONDS) \u306e\u3068\u3053\u308d\u3067\u975e\u540c\u671f\u51e6\u7406\u306e\u5b8c\u4e86\u3092\u5f85\u3061\u3001\u5b8c\u4e86\u6642\u306b\u7d50\u679c\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br>\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u95a2\u6570\u306e\u4e2d\u3067future.complete(result)\u3068\u3044\u3046\u51e6\u7406\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u308c\u304c\u547c\u3073\u51fa\u3055\u308c\u308b\u3053\u3068\u3067CompletableFuture\u30af\u30e9\u30b9\u306e\u5f85\u3061\u304c\u5b8c\u4e86\u3057\u3001\u7d50\u679c\u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3092\u4f7f\u3063\u3066\u3001\u4e0a\u306e\u51e6\u7406\u3068\u540c\u69d8\u306b\uff14\u3064\u306e\u30ed\u30b0\u3092\u51fa\u529b\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">CoroutineScope(Dispatchers.IO).launch {\n    Log.d(TAG, \"\u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff11\")\n\n    val result = serialFunction(\"some param\")\n\n    Log.d(TAG, \"\u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff12\")\n    if (result) {\n        \/\/ do something when succeeded...\n    } else {\n        \/\/ do something when failed...\n    }\n    Log.d(TAG, \"\u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff13\")\n\n    Log.d(TAG, \"\u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff14\")\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u901a\u308a\u306b\u30ed\u30b0\u3082\u4e0a\u304b\u3089\u9806\u756a\u306b\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<br> &#8211; \u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff11<br> &#8211; \u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff12<br> &#8211; \u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff13<br> &#8211; \u975e\u540c\u671f\u51e6\u7406\u3000\u30ed\u30b0\uff14<\/p>\n\n\n\n<p><br>\u4e0a\u8a18\u306e\u51e6\u7406\u3067\u3001val result = serialFunction(&#8220;some param&#8221;) \u306e\u3068\u3053\u308d\u3067\u95a2\u6570\u306e\u5b8c\u4e86\u3092\u81ea\u52d5\u7684\u306b\u5f85\u3063\u3066\u304f\u308c\u308b\u305f\u3081\u3001\u975e\u540c\u671f\u51e6\u7406\u306e\u6069\u6075\u3092\u53d7\u3051\u3064\u3064\u3082\u3001\u4e0a\u304b\u3089\u9806\u756a\u306b\u51e6\u7406\u304c\u884c\u308f\u308c\u307e\u3059\u3002<br>\u306a\u304a\u3001suspend\u95a2\u6570\u306fCoroutine\u306e\u4e2d\u3067\u3057\u304b\u5b9f\u884c\u3067\u304d\u307e\u305b\u3093\u3002\u4e0a\u8a18\u306e\u51e6\u7406\u306f CoroutineScope(Dispatchers.IO).launch \u3067\u56f2\u307e\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u306e\u30d6\u30ed\u30c3\u30af\u304c\u7121\u3044\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3067\u3001\u540c\u671f\u51e6\u7406\u306e\u3088\u3046\u306b\u8aad\u307f\u3084\u3059\u3044\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u66f8\u304d\u63db\u3048\u308b\u4e8b\u304c\u3067\u304d\u307e\u3057\u305f\u3002<br>\u307e\u305f\u3001\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u51e6\u7406\u306e\u30d6\u30ed\u30c3\u30af\u304c\u306a\u304f\u306a\u3063\u305f\u3053\u3068\u3067\u3001\u30a4\u30f3\u30c7\u30f3\u30c8\u304c\u63c3\u3063\u3066\u51e6\u7406\u306e\u898b\u901a\u3057\u3082\u826f\u304f\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u5f0a\u793e\u3067\u306fAndroid\u30a2\u30d7\u30ea\u3001iOS\u30a2\u30d7\u30ea\u306e\u958b\u767a\u3082\u627f\u3063\u3066\u304a\u308a\u307e\u3059\u306e\u3067\u304a\u6c17\u8efd\u306b\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u975e\u540c\u671f\u51e6\u7406\u3092\u6271\u3046\u624b\u6cd5\u306e\u4e00\u3064\u3068\u3057\u3066\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u30d1\u30bf\u30fc\u30f3\u304c\u3042\u308a\u307e\u3059\u3002\u6642\u9593\u306e\u304b\u304b\u308b\u51e6\u7406\u3092\u975e\u540c\u671f\u3067\u5b9f\u884c\u3057\u3001\u5b8c\u4e86\u5f8c\u306b\u884c\u3046\u5f8c\u7d9a\u51e6\u7406\u3092\u4e88\u3081\u6307\u5b9a\u3057\u3066\u304a\u304f\u3082\u306e\u3067\u3059\u304c\u3001\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u30d1\u30bf\u30fc\u30f3\u306b\u306f\u51e6\u7406\u306e\u5b9f\u884c\u9806\u5e8f\u304c\u5206\u304b\u308a\u306b\u304f\u3044\u3068\u3044\u3046\u554f\u984c\u304c\u3042\u308a\u307e\u3059 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":2834,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[37],"class_list":["post-2749","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-33","tag-kotlin"],"_links":{"self":[{"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/posts\/2749","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/comments?post=2749"}],"version-history":[{"count":2,"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/posts\/2749\/revisions"}],"predecessor-version":[{"id":2751,"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/posts\/2749\/revisions\/2751"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/media\/2834"}],"wp:attachment":[{"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/media?parent=2749"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/categories?post=2749"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.spread1.co.jp\/wp\/wp-json\/wp\/v2\/tags?post=2749"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}