{"id":1365,"date":"2020-08-19T22:43:41","date_gmt":"2020-08-19T13:43:41","guid":{"rendered":"http:\/\/hirlab.net\/nblog\/?p=1365"},"modified":"2020-08-20T09:59:20","modified_gmt":"2020-08-20T00:59:20","slug":"swiftui%e3%81%aestack-%e3%82%84list-%e3%81%ae%e8%ac%8e%e3%82%92%e8%a7%a3%e3%81%8f%e8%a8%98%e4%ba%8b%e3%80%90%e6%b3%a2%e6%8b%ac%e5%bc%a7%e3%81%af%e4%bd%95%ef%bc%9f%e3%80%91","status":"publish","type":"post","link":"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/","title":{"rendered":"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_11 counter-hierarchy counter-decimal ez-toc-light-blue\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">\u30b3\u30f3\u30c6\u30f3\u30c4<\/p>\n<span class=\"ez-toc-title-toggle\"><a class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#%E3%81%AF%E3%81%98%E3%82%81%E3%81%AB\" title=\"\u306f\u3058\u3081\u306b\">\u306f\u3058\u3081\u306b<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#%E5%95%8F%E9%A1%8C%E3%81%AE%E3%82%B3%E3%83%BC%E3%83%89\" title=\"\u554f\u984c\u306e\u30b3\u30fc\u30c9\">\u554f\u984c\u306e\u30b3\u30fc\u30c9<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#%E3%83%92%E3%83%B3%E3%83%88%E3%81%AF%E3%82%AF%E3%83%AD%E3%83%BC%E3%82%B8%E3%83%A3%EF%BC%9F\" title=\"\u30d2\u30f3\u30c8\u306f\u30af\u30ed\u30fc\u30b8\u30e3\uff1f\">\u30d2\u30f3\u30c8\u306f\u30af\u30ed\u30fc\u30b8\u30e3\uff1f<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#%E8%87%AA%E4%BD%9C%E3%81%AE%E3%82%AF%E3%83%AD%E3%83%BC%E3%82%B8%E3%83%A3%E3%82%92%E5%BC%95%E6%95%B0%E3%81%AB%E3%81%A8%E3%82%8B%E6%A7%8B%E9%80%A0%E4%BD%93\" title=\"\u81ea\u4f5c\u306e\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u5f15\u6570\u306b\u3068\u308b\u69cb\u9020\u4f53\">\u81ea\u4f5c\u306e\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u5f15\u6570\u306b\u3068\u308b\u69cb\u9020\u4f53<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#%E3%81%BE%E3%81%9A%E3%81%AF%E5%88%9D%E6%9C%9F%E5%8C%96%E3%81%97%E3%81%A6%E5%AE%9F%E8%A1%8C\" title=\"\u307e\u305a\u306f\u521d\u671f\u5316\u3057\u3066\u5b9f\u884c\">\u307e\u305a\u306f\u521d\u671f\u5316\u3057\u3066\u5b9f\u884c<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#HStack_%7B_%7D%E3%81%AE%E3%82%88%E3%81%86%E3%81%AB%E3%81%97%E3%81%A6%E3%81%BF%E3%82%8B\" title=\"HStack { }\u306e\u3088\u3046\u306b\u3057\u3066\u307f\u308b\">HStack { }\u306e\u3088\u3046\u306b\u3057\u3066\u307f\u308b<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#%E3%82%AF%E3%83%AD%E3%83%BC%E3%82%B8%E3%83%A3%E5%86%85%E3%81%AB%E9%81%A9%E5%BD%93%E3%81%AB%E7%A9%8D%E3%81%BF%E4%B8%8A%E3%81%92%E3%82%89%E3%82%8C%E3%81%9F%E3%82%AA%E3%83%96%E3%82%B8%E3%82%A7%E3%82%AF%E3%83%88\" title=\"\u30af\u30ed\u30fc\u30b8\u30e3\u5185\u306b\u9069\u5f53\u306b\u7a4d\u307f\u4e0a\u3052\u3089\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\">\u30af\u30ed\u30fc\u30b8\u30e3\u5185\u306b\u9069\u5f53\u306b\u7a4d\u307f\u4e0a\u3052\u3089\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#@ViewBuilder\" title=\"@ViewBuilder\">@ViewBuilder<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#%E4%BD%9C%E3%81%A3%E3%81%A6%E3%81%BF%E3%81%9F%E3%81%84\" title=\"\u4f5c\u3063\u3066\u307f\u305f\u3044\">\u4f5c\u3063\u3066\u307f\u305f\u3044<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#CustomAttribute\" title=\"CustomAttribute\">CustomAttribute<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#%E6%97%A9%E9%80%9F%E5%AE%9F%E8%A1%8C%E3%81%97%E3%81%A6%E3%81%BF%E3%82%8B%EF%BC%81\" title=\"\u65e9\u901f\u5b9f\u884c\u3057\u3066\u307f\u308b\uff01\">\u65e9\u901f\u5b9f\u884c\u3057\u3066\u307f\u308b\uff01<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#%E4%BD%99%E8%AB%87%EF%BC%9A@ViewBuilder%E3%81%AE%E5%AE%9A%E7%BE%A9_(%E4%B8%80%E9%83%A8)\" title=\"\u4f59\u8ac7\uff1a@ViewBuilder\u306e\u5b9a\u7fa9 (\u4e00\u90e8)\">\u4f59\u8ac7\uff1a@ViewBuilder\u306e\u5b9a\u7fa9 (\u4e00\u90e8)<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#%E3%81%8A%E3%82%8F%E3%82%8A%E3%81%AB\" title=\"\u304a\u308f\u308a\u306b\">\u304a\u308f\u308a\u306b<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/hirlab.net\/nblog\/category\/programming\/art_1365\/#_Swift%E3%81%A7%E3%81%AE%E3%82%A2%E3%83%97%E3%83%AA%E9%96%8B%E7%99%BA%E3%82%92%E5%AD%A6%E3%81%B6%E3%81%AA%E3%82%89\" title=\"???? Swift\u3067\u306e\u30a2\u30d7\u30ea\u958b\u767a\u3092\u5b66\u3076\u306a\u3089\">???? Swift\u3067\u306e\u30a2\u30d7\u30ea\u958b\u767a\u3092\u5b66\u3076\u306a\u3089<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%E3%81%AF%E3%81%98%E3%82%81%E3%81%AB\"><\/span>\u306f\u3058\u3081\u306b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u6700\u8fd1\uff0c\u3075\u3068\u601d\u3044\u7acb\u3061Swift\u306e\u52c9\u5f37\u3092\u59cb\u3081\u307e\u3057\u305f\uff0e<\/p>\n<p>\u305d\u3053\u3067<strong>Swift\u306e\u591a\u6a5f\u80fd\u6027\u306b\u9006\u306b\u60a9\u307e\u3055\u308c\u3066\u3044\u307e\u3059<\/strong>\uff0e<\/p>\n<p>\u4eca\u56de\u306e\u984c\u6750\u306fSwiftUI\u3067\u304a\u306a\u3058\u307f\u306e<span class=\"lang:swift decode:true crayon-inline \">VStack { }<\/span>\u00a0\u7cfb\u7d71\uff0e<\/p>\n<p>\u3053\u306e\u6ce2\u62ec\u5f27\u306f\u4f55\uff01\uff1f\u3068\u3044\u3046\u79c1\u306e\u7591\u554f\u3092\u89e3\u6c7a\u3059\u308b\u8a18\u4e8b\u3067\u3059\uff0e<\/p>\n<p>\u3082\u3046\u3059\u3067\u306b\u7b54\u3048\u3092\u308f\u304b\u3063\u3066\u3044\u308b\u4eba\u306b\u306f\u300c\u305d\u3093\u306a\u3053\u3068\u3082\u308f\u304b\u3089\u3093\u306e\u304b\u3088...\u300d\u3068\u5446\u308c\u3089\u308c\u305d\u3046\u3067\u3059\u304c\uff0c\u9811\u5f35\u308a\u307e\u3059\uff0e<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E5%95%8F%E9%A1%8C%E3%81%AE%E3%82%B3%E3%83%BC%E3%83%89\"><\/span>\u554f\u984c\u306e\u30b3\u30fc\u30c9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u898b\u3066\u304f\u3060\u3055\u3044\uff0e<\/p>\n<pre class=\"lang:swift decode:true\" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">var body: some View {\r\n   HStack {\r\n       Text(landmark.park)\r\n       Spacer()\r\n       Text(landmark.state)\r\n   }\r\n}<\/pre>\n<p>SwiftUI\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3092\u3084\u308c\u3070\u4f3c\u305f\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3092\u5fc5\u305a\u898b\u308b\u306f\u305a\u3067\u3059\uff0e<\/p>\n<p>\u5225\u306b\u3084\u3063\u3066\u3044\u308b\u3053\u3068\u306f\u5206\u304b\u308a\u307e\u3059\uff0e<\/p>\n<p>\u300c\u6c34\u5e73\u65b9\u5411\u306b\u30c6\u30ad\u30b9\u30c8\u3068\u30b9\u30da\u30fc\u30b9\u3092\u4e26\u3079\u3066\u3044\u308b\u3093\u3060\u306a\u300d\u3068\u3044\u3046\u306e\u306f\u5206\u304b\u308b\u3093\u3067\u3059\uff0e<\/p>\n<p>\u305d\u3057\u3066\uff0c<span class=\"lang:swift decode:true crayon-inline \">body<\/span> \u304cComputed propaty\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3082\u5206\u304b\u308a\u307e\u3059\uff0e<\/p>\n<p>\u3067\u3082\uff0c<strong>\u3053\u306e<span class=\"lang:swift decode:true crayon-inline \">HStack<\/span>\u00a0\u3063\u3066\u4f55\u8005\u306a\u3093\u3067\u3057\u3087\u3046\uff1f\uff1f<\/strong><\/p>\n<p>\u95a2\u6570\u3067\u306f\u306a\u3055\u305d\u3046\u3067\u3059\uff0e<\/p>\n<p><strong>\u5b9f\u969b\u306b\u5b9a\u7fa9\u3092\u8fbf\u3063\u3066\u307f\u307e\u3057\u305f<\/strong>\uff0e<\/p>\n<pre class=\"lang:swift decode:true \" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">@frozen public struct HStack&lt;Content&gt; : View where Content : View {\r\n    \/\/ \u7701\u7565\r\n}<\/pre>\n<p>\u3069\u3046\u3084\u3089\u69cb\u9020\u4f53\u3089\u3057\u3044\uff0e<\/p>\n<p>\u3067\u3082\u69cb\u9020\u4f53\u3063\u3066\u521d\u671f\u5316\u3059\u308b\u306a\u3089\u3070\uff0c<span class=\"lang:swift decode:true crayon-inline\">HStack( )<\/span>\u00a0\u307f\u305f\u3044\u306a\u611f\u3058\u304b\u3068\u601d\u3063\u3066\u3044\u305f\u304c\uff0c<span class=\"lang:swift decode:true crayon-inline \">HStack { }<\/span> \u3068\u3044\u3046\u4f7f\u3044\u65b9\u3092\u3057\u3066\u3044\u308b\uff0c\u306a\u305c\u3060...<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E3%83%92%E3%83%B3%E3%83%88%E3%81%AF%E3%82%AF%E3%83%AD%E3%83%BC%E3%82%B8%E3%83%A3%EF%BC%9F\"><\/span>\u30d2\u30f3\u30c8\u306f\u30af\u30ed\u30fc\u30b8\u30e3\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3053\u306e<span class=\"lang:swift decode:true crayon-inline\">HStack<\/span>\uff0c\u30a4\u30cb\u30b7\u30e3\u30e9\u30a4\u30b6\u306e\u5f15\u6570\u3092\u898b\u3066\u307f\u308b\u3068\uff0c\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u542b\u3093\u3067\u3044\u308b\uff0e<\/p>\n<pre class=\"lang:swift mark:3 decode:true\" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">@inlinable public init(alignment: VerticalAlignment = .center,\r\n                       spacing: CGFloat? = nil,\r\n                       @ViewBuilder content: () -&gt; Content)<\/pre>\n<p>\u3053\u308c\u304c\u30d2\u30f3\u30c8\u306a\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u3068\u601d\u3044\uff0c\u7c21\u5358\u306a\u69cb\u9020\u4f53\u3092\u3064\u304f\u3063\u3066\u307f\u305f\uff0e<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E8%87%AA%E4%BD%9C%E3%81%AE%E3%82%AF%E3%83%AD%E3%83%BC%E3%82%B8%E3%83%A3%E3%82%92%E5%BC%95%E6%95%B0%E3%81%AB%E3%81%A8%E3%82%8B%E6%A7%8B%E9%80%A0%E4%BD%93\"><\/span>\u81ea\u4f5c\u306e\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u5f15\u6570\u306b\u3068\u308b\u69cb\u9020\u4f53<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre class=\"lang:swift decode:true \" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">\/\/ \u9069\u5f53\u306a\u5927\u5143\u3068\u306a\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\r\nprotocol base{\r\n    var a: String { get set }\r\n}\r\n\r\n\/\/ \u30a4\u30cb\u30b7\u30e3\u30e9\u30a4\u30b6\u306b\u7c21\u5358\u306a\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u3068\u308b\u69cb\u9020\u4f53\r\nstruct hoge: base{\r\n    var a: String\r\n    \r\n    init(a: () -&gt; String) {\r\n        self.a = a()\r\n    }\r\n}<\/pre>\n<p>\u4f55\u306e\u610f\u5473\u3082\u306a\u3044\u30b3\u30fc\u30c9\u3060\u304c\u52d5\u4f5c\u3092\u78ba\u8a8d\u3059\u308b\u3060\u3051\u306a\u306e\u3067\u554f\u984c\u306a\u3044\uff0e<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%81%BE%E3%81%9A%E3%81%AF%E5%88%9D%E6%9C%9F%E5%8C%96%E3%81%97%E3%81%A6%E5%AE%9F%E8%A1%8C\"><\/span>\u307e\u305a\u306f\u521d\u671f\u5316\u3057\u3066\u5b9f\u884c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u30af\u30ed\u30fc\u30b8\u30e3\u3082\u8d85\u7c21\u5358\u306a\u3082\u306e\u3092\u6e21\u3059\uff0e<\/p>\n<pre class=\"lang:swift decode:true \" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">var x: base {\r\n    hoge(a: {\"Hello.\"})\r\n}\r\n\r\nprint(x.a)  \/\/ =&gt; Hello.<\/pre>\n<p>\u554f\u984c\u306a\u3044\u3057\uff0c\u7279\u306b\u7591\u554f\u3082\u306a\u3044\uff0e<\/p>\n<h3><span class=\"ez-toc-section\" id=\"HStack_%7B_%7D%E3%81%AE%E3%82%88%E3%81%86%E3%81%AB%E3%81%97%E3%81%A6%E3%81%BF%E3%82%8B\"><\/span>HStack { }\u306e\u3088\u3046\u306b\u3057\u3066\u307f\u308b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre class=\"lang:swift decode:true \" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">var x: base {\r\n    hoge{\r\n        \"Hello.\"\r\n    }\r\n}\r\n\r\nprint(x.a)  \/\/ =&gt; Hello.<\/pre>\n<p>\u304a\u304a\uff01<\/p>\n<p>\u3053\u308c\u3060\uff0c\u540c\u3058\u3088\u3046\u306a\u8868\u8a18\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u305f\uff0e<\/p>\n<p>\u3064\u307e\u308a\uff0c<strong><span class=\"lang:swift decode:true crayon-inline\">HStack { }<\/span> \u306e\u6ce2\u62ec\u5f27\u306f\u5f15\u6570\u306b\u6e21\u3059\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u8868\u3057\u3066\u3044\u308b<\/strong>\u3089\u3057\u3044\uff0e<\/p>\n<p>\u3053\u3053\u307e\u3067\u3067\uff0c\u57fa\u672c\u306f\u308f\u304b\u3063\u305f\u6c17\u304c\u3059\u308b\uff0e<\/p>\n<p>\u3057\u304b\u3057\u7591\u554f\u304c\u307e\u3060\u3042\u308b\uff0e<br \/>\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-7123758399787647\" data-ad-slot=\"1665651601\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E3%82%AF%E3%83%AD%E3%83%BC%E3%82%B8%E3%83%A3%E5%86%85%E3%81%AB%E9%81%A9%E5%BD%93%E3%81%AB%E7%A9%8D%E3%81%BF%E4%B8%8A%E3%81%92%E3%82%89%E3%82%8C%E3%81%9F%E3%82%AA%E3%83%96%E3%82%B8%E3%82%A7%E3%82%AF%E3%83%88\"><\/span>\u30af\u30ed\u30fc\u30b8\u30e3\u5185\u306b\u9069\u5f53\u306b\u7a4d\u307f\u4e0a\u3052\u3089\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<pre class=\"lang:swift decode:true\" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">var body: some View {\r\n    HStack {\r\n        Text(landmark.park)\r\n        Spacer()\r\n        Text(landmark.state)        \r\n    }\r\n}<\/pre>\n<p>\u3053\u308c\uff0c\u4e00\u3064\u306e\u6ce2\u62ec\u5f27<span class=\"lang:swift decode:true crayon-inline \">{ }<\/span>\u00a0\u5185\u306b\u30ab\u30f3\u30de<span class=\"lang:swift decode:true crayon-inline \">, <\/span>\u00a0\u3082\u306a\u304f\uff0c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u7a4d\u307f\u4e0a\u3052\u3089\u308c\u3066\u308b\u3051\u3069\u3069\u3046\u3044\u3046\u3053\u3068\u306a\u306e\uff1f<\/p>\n<p>\u898b\u69d8\u898b\u771f\u4f3c\u3067\u3084\u3063\u3066\u307f\u3066\u3082...<\/p>\n<pre class=\"lang:swift decode:true \" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">var x: base {\r\n    hoge{\r\n        \"Hello, \"\r\n        \"Swift.\"  \/\/ =&gt; Error\r\n    }\r\n}\r\n\r\nprint(x.a)<\/pre>\n<p>\u3082\u3061\u308d\u3093\u30c0\u30e1\uff0e<\/p>\n<p>\u3060\u3063\u3066<strong>\u30af\u30ed\u30fc\u30b8\u30e3\u5185\u3067\u8907\u6570\u6587\u66f8\u304f\u3068\u304d\u306f\uff0c<span class=\"lang:swift decode:true crayon-inline \">return<\/span> \u304c\u5fc5\u8981<\/strong>\u306a\u306e\u3060\u304b\u3089\uff0e<\/p>\n<p>\u307e\u305f\u3082\u5b9a\u7fa9\u3092\u8fbf\u308b\uff0e<\/p>\n<p>\u3059\u308b\u3068\uff0c\u602a\u3057\u3052\u306a\u3082\u306e\u304c\uff0e<\/p>\n<h3><span class=\"ez-toc-section\" id=\"@ViewBuilder\"><\/span>@ViewBuilder<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u30a4\u30cb\u30b7\u30e3\u30e9\u30a4\u30b6\u306e<span class=\"lang:swift decode:true crayon-inline\">@ViewBuilder content: () -&gt; Content<\/span>\u00a0\u306e\u90e8\u5206\uff0e<\/p>\n<p>\u3053\u306e\u5c5e\u6027 (attribute) \u304c\u95a2\u4fc2\u3057\u3066\u3044\u308b\u306b\u9055\u3044\u306a\u3044\uff0c\u3068\u8abf\u3079\u3066\u307f\u308b\u3068\uff0e<\/p>\n<ol>\n<li><a href=\"https:\/\/qiita.com\/kentrino\/items\/dc6e77a0ddd21187cc55\" target=\"_blank\" rel=\"noopener noreferrer\">SwiftUI\u306e\u9b54\u6cd5\u3092\u5b9f\u73fe\u3059\u308b\u4ed5\u7d44\u307f (Custom Attributes, Function Builder) - Qiita<\/a><\/li>\n<\/ol>\n<p>\u30d4\u30f3\u30dd\u30a4\u30f3\u30c8\u3067\u6c42\u3081\u3066\u305f\u8a18\u4e8b\u3092\u898b\u3064\u3051\u307e\u3057\u305f\uff0e<\/p>\n<p>\u3069\u3046\u3084\u3089\uff0c\u3053\u306e<span class=\"lang:swift decode:true crayon-inline \">@ViewBuilder<\/span>\u00a0\u304c\u4ed8\u3044\u305f\u30af\u30ed\u30fc\u30b8\u30e3\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u89e3\u91c8\u3055\u308c\u308b\u3089\u3057\u3044\uff0e<\/p>\n<pre class=\"lang:swift decode:true\" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">var body: some View {\r\n    HStack {\r\n        Text(landmark.park)\r\n        Spacer()\r\n        Text(landmark.state)\r\n    }\r\n}<\/pre>\n<p>\u304c\uff0c\u3053\u3046????<\/p>\n<pre class=\"lang:swift decode:true\" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">var body: some View {\r\n    HStack {\r\n        ViewBuilder.buildBlock(\r\n            Text(landmark.park),\r\n            Spacer(),\r\n            Text(landmark.state)\r\n        )\r\n    }\r\n}<\/pre>\n<p>\u3060\u304b\u3089\uff0c<strong>\u5b9f\u8cea\u30af\u30ed\u30fc\u30b8\u30e3\u5185\u306f\u4e00\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3057\u304b\u306a\u3044\u306e\u3067OK<\/strong>\u3068\u3044\u3046\u3053\u3068\uff0e<\/p>\n<p>\u4f55\u3060\u305d\u308a\u3083\uff0e<\/p>\n<p><strong>\u4fbf\u5229\u306a\u3093\u3060\u308d\u3046\u3051\u3069\uff0c\u7d30\u304b\u304f\u4ed5\u69d8\u3092\u77e5\u308d\u3046\u3068\u3059\u308b\u4eba\u306b\u3068\u3063\u3066\u306f\uff0c\u3084\u3084\u6c17\u6301\u3061\u60aa\u3044<\/strong>\uff0e<\/p>\n<p>C++\u3067\u3044\u3046\u3068\u3053\u308d\u306e\uff0c\u30de\u30af\u30ed\u4f7f\u3044\u307e\u304f\u3063\u3066\u69cb\u6587\u304c\u5d29\u58ca\u4ed5\u639b\u3051\u3066\u3044\u308b\u611f\u3058\uff0e(?)<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E4%BD%9C%E3%81%A3%E3%81%A6%E3%81%BF%E3%81%9F%E3%81%84\"><\/span>\u4f5c\u3063\u3066\u307f\u305f\u3044<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u3060\u3051\u3069\uff0c\u4ed5\u7d44\u307f\u304c\u308f\u304b\u3063\u305f\u4ee5\u4e0a\uff0c\u81ea\u5206\u3067\u540c\u3058\u3088\u3046\u306a\u5b9f\u88c5\u304c\u3057\u3066\u307f\u305f\u3044\uff0e<\/p>\n<p>\u305d\u3057\u3066\uff0c\u5148\u306e\u8a18\u4e8b\u3067\u306f\u89aa\u5207\u306b\u3082\uff0c\u305d\u306e\u4f5c\u308a\u65b9\u307e\u3067\u66f8\u3044\u3066\u304f\u308c\u3066\u3044\u308b\uff0e(\u795e\u69d8\uff01)<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CustomAttribute\"><\/span>CustomAttribute<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u65e9\u901f\u4f5c\u3063\u3066\u307f\u307e\u3057\u305f\uff0e<\/p>\n<pre class=\"lang:swift decode:true\" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">\/\/ CutomAttribute\u3092\u4f5c\u308b\uff01\r\n@_functionBuilder public struct ConcatStr{\r\n    public static func buildBlock(_ s1: String) -&gt; String{\r\n        return s1\r\n    }\r\n    public static func buildBlock(_ s1: String, _ s2: String) -&gt; String{\r\n        return s1 + s2\r\n    }\r\n}<\/pre>\n<p>\u610f\u5916\u3068\u8133\u7b4b\u306a\u5b9f\u88c5\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u304c\uff0c\u6700\u59272\u3064\u307e\u3067\u6587\u5b57\u5217\u3092\u7a4d\u307f\u4e0a\u3052\u3089\u308c\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u305f\uff0e<\/p>\n<p>\u3061\u306a\u307f\u306b\u30e1\u30bd\u30c3\u30c9\u540d\u306f<span class=\"lang:swift decode:true crayon-inline \">buildBlock()<\/span>\u00a0\u3068\u8a00\u3046\u540d\u524d\u3067\u306a\u3051\u308c\u3070\u30c0\u30e1\u3063\u307d\u3044\u3067\u3059\uff0e<\/p>\n<p>\u3042\u3068\u306f\u5f15\u6570\u306e\u30e9\u30d9\u30eb\u306f\u7701\u7565\u3057\u305f\u3044\u306e\u3067\uff0c<span class=\"lang:swift decode:true crayon-inline \">_<\/span>\u00a0\u304c\u3064\u3044\u3066\u3044\u307e\u3059\uff0e<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E6%97%A9%E9%80%9F%E5%AE%9F%E8%A1%8C%E3%81%97%E3%81%A6%E3%81%BF%E3%82%8B%EF%BC%81\"><\/span>\u65e9\u901f\u5b9f\u884c\u3057\u3066\u307f\u308b\uff01<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u307e\u305a\u306f\uff0c\u69cb\u9020\u4f53\u306e\u30a4\u30cb\u30b7\u30e3\u30e9\u30a4\u30b6\u306b\u4f5c\u6210\u3057\u305fattribute\u3092\u52a0\u7b46\u3057\u307e\u3059\uff0e<\/p>\n<pre class=\"lang:swift mark:5 decode:true \" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">\/\/ \u30a4\u30cb\u30b7\u30e3\u30e9\u30a4\u30b6\u306b\u7c21\u5358\u306a\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u3068\u308b\u69cb\u9020\u4f53\r\nstruct hoge: base{\r\n    var a: String\r\n    \r\n    init(@ConcatStr a: () -&gt; String) {\r\n        self.a = a()\r\n    }\r\n}<\/pre>\n<p>\u305d\u3057\u305f\u3089\uff0c\u5f85\u3061\u306b\u5f85\u3063\u305f\u5b9f\u884c\uff01<\/p>\n<pre class=\"lang:swift decode:true \" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">var x: base {\r\n    hoge{\r\n        \"Hello, \"\r\n        \"Swift.\"\r\n    }\r\n}\r\n\r\nprint(x.a)  \/\/ =&gt; Hello, Swift<\/pre>\n<p><strong>\u3084\u3063\u305f\u30fc\uff01\u5b09\u3057\u3044\u30fc\uff01<\/strong><\/p>\n<p>\u3053\u308c\u3067\uff0c\u672c\u984c\u306e\u8b0e\u306f\u89e3\u3051\u305f\u6c17\u304c\u3057\u307e\u3059\uff0e<\/p>\n<p>\u3053\u306e\uff0c\u4e0d\u601d\u8b70\u69cb\u6587\u306f\u306a\u304b\u306a\u304b\u624b\u5f37\u304b\u3063\u305f\u3067\u3059\u306d...<\/p>\n<p>\u826f\u3044\u52c9\u5f37\u306b\u306a\u308a\u307e\u3057\u305f\uff0e<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E4%BD%99%E8%AB%87%EF%BC%9A@ViewBuilder%E3%81%AE%E5%AE%9A%E7%BE%A9_(%E4%B8%80%E9%83%A8)\"><\/span>\u4f59\u8ac7\uff1a@ViewBuilder\u306e\u5b9a\u7fa9 (\u4e00\u90e8)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre class=\"lang:swift decode:true \" title=\"SwiftUI\u306e*Stack{ }\u3084List{ }\u306e\u8b0e\u3092\u89e3\u304f\u8a18\u4e8b\u3010\u6ce2\u62ec\u5f27\u306f\u4f55\uff1f\u3011\">extension ViewBuilder {\r\n\r\n    public static func buildBlock&lt;C0, C1, C2, C3, C4, C5, C6, C7, C8, C9&gt;\r\n        (_ c0: C0, _ c1: C1, _ c2: C2, _ c3: C3, _ c4: C4, _ c5: C5,\r\n         _ c6: C6, _ c7: C7, _ c8: C8, _ c9: C9)\r\n        -&gt; TupleView&lt;(C0, C1, C2, C3, C4, C5, C6, C7, C8, C9)&gt;\r\n        where C0 : View, C1 : View, C2 : View, C3 : View, C4 : View,\r\n        C5 : View, C6 : View, C7 : View, C8 : View, C9 : View\r\n}<\/pre>\n<p><strong>\u672c\u5bb6\u3082\u8133\u7b4b\u306a\u5b9f\u88c5\u3057\u3066\u307e\u3057\u305f<\/strong>\uff0e<\/p>\n<p>\u6700\u59279\u3064\u30b9\u30bf\u30c3\u30af\u3067\u304d\u308b\u3089\u3057\u3044\u3067\u3059\uff0e<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E3%81%8A%E3%82%8F%E3%82%8A%E3%81%AB\"><\/span>\u304a\u308f\u308a\u306b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3044\u3084\u30fc\uff0c\u8b0e\u304c\u89e3\u3051\u308b\u3068\u6c17\u6301\u3061\u304c\u826f\u3044\u3067\u3059\uff0e<\/p>\n<p>\u79c1\uff0c\u3053\u3046\u3044\u3046\u4fbf\u5229\u306a\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u5b9a\u7fa9\u3092\u8aad\u307f\u89e3\u304f\u306e\u304c\u7d50\u69cb\u597d\u304d\u3067\uff0cPython\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u304b\u306f\u3088\u304f\u8aad\u3093\u3067\u3044\u305f\u306e\u3067\u3059\u304c\uff0c<strong>SwiftUI\u306f\u624b\u5f37\u304b\u3063\u305f<\/strong>\u3067\u3059\u306d\uff0e<\/p>\n<p>\u52c9\u5f37\u3057\u521d\u3081\u3066\u6570\u65e5\u3068\u3044\u3046\u306e\u3082\u3042\u308b\u3057\uff0c\u7d50\u69cb\u7d30\u304b\u3044\u5b9a\u7fa9\u306e\u8a71\u307e\u3067\u3057\u3066\u3044\u308b\u8a18\u4e8b\u3063\u3066\u5c11\u306a\u3044\u3093\u3067\u3059\u3088\u306d\uff0e<\/p>\n<p>\u307f\u3093\u306a\uff0c\u300cSwiftUI\u306e\u4f7f\u3044\u65b9\u306b\u7279\u5316\u3057\u3066\u3044\u308b\u300d\u3068\u3044\u3046\u304b\uff0e<\/p>\n<p>\u3042\u307e\u308a\u7d30\u304b\u3044\u5b9a\u7fa9\u306e\u306f\u8a71\u306f\u6c17\u306b\u306a\u3089\u306a\u3044\u306e\u304b\u306a\uff0c\u7406\u89e3\u3067\u304d\u305f\u3089\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3057\u3084\u3059\u304f\u306a\u308b\u3068\u601d\u3046\u3093\u3060\u3051\u3069\u306a\uff0e<\/p>\n<p>\u307f\u306a\u3055\u3093\u306f\u3069\u3046\u601d\u3044\u307e\u3059\uff1f<\/p>\n<h3><span class=\"ez-toc-section\" id=\"_Swift%E3%81%A7%E3%81%AE%E3%82%A2%E3%83%97%E3%83%AA%E9%96%8B%E7%99%BA%E3%82%92%E5%AD%A6%E3%81%B6%E3%81%AA%E3%82%89\"><\/span>???? Swift\u3067\u306e\u30a2\u30d7\u30ea\u958b\u767a\u3092\u5b66\u3076\u306a\u3089<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"\/\/af.moshimo.com\/af\/c\/click?a_id=2143215&amp;p_id=2786&amp;pc_id=6331&amp;pl_id=36086&amp;url=https%3A%2F%2Fplayground.style%2Fofficial%2Fsupport%2F\" rel=\"nofollow\"><img style=\"border: none;\" src=\"https:\/\/image.moshimo.com\/af-img\/2217\/000000036086.jpg\" \/><\/a><img loading=\"lazy\" style=\"border: none;\" src=\"\/\/i.moshimo.com\/af\/i\/impression?a_id=2143215&amp;p_id=2786&amp;pc_id=6331&amp;pl_id=36086\" width=\"1\" height=\"1\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Swift (\u3082\u3068\u3044SwiftUI) \u3092\u52c9\u5f37\u3057\u59cb\u3081\u305f\u306e\u3067\u3059\u304c\uff0c\u4fbf\u5229\u3059\u304e\u3066\u9006\u306b\u8a33\u304c\u5206\u304b\u3089\u306a\u304f\u306a\u308a\u307e\u3057\u305f\uff0eVStack{ }\u3063\u3066\u306a\u306b\uff1fHStack{ }\u3063\u3066\u306a\u306b\uff1f\u305d\u306e\u6ce2\u62ec\u5f27\u306f\u3069\u3093\u306a\u610f\u5473\u3092\u3057\u3066\u3044\u308b\u306e\u3088\uff0e\u5b9a\u7fa9\u304c\u77e5\u308a\u305f\u3044\u308f\uff01\u3063\u3066\u3053\u3068\u3067\uff0c\u305d\u306e\u8b0e\u3092\u89e3\u304d\u307e\u3057\u305f\uff0e\u307f\u306a\u3055\u3093\u666e\u6bb5\u4f7f\u3063\u3066\u3044\u308b\u305d\u306e\u30b3\u30fc\u30c9\uff0c\u610f\u5473\u308f\u304b\u3063\u3066\u3044\u307e\u3059\u304b\uff1f<\/p>\n","protected":false},"author":1,"featured_media":1371,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[83,81,82],"_links":{"self":[{"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/posts\/1365"}],"collection":[{"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/comments?post=1365"}],"version-history":[{"count":8,"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/posts\/1365\/revisions"}],"predecessor-version":[{"id":1374,"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/posts\/1365\/revisions\/1374"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/media\/1371"}],"wp:attachment":[{"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/media?parent=1365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/categories?post=1365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hirlab.net\/nblog\/wp-json\/wp\/v2\/tags?post=1365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}