{"id":61,"date":"2025-03-13T14:40:32","date_gmt":"2025-03-13T06:40:32","guid":{"rendered":"http:\/\/xuanyuan123.site\/wordPress\/?p=61"},"modified":"2025-03-13T14:40:32","modified_gmt":"2025-03-13T06:40:32","slug":"swiftui%e5%b8%b8%e8%a7%81%e7%bc%96%e8%af%91%e6%8a%a5%e9%94%99%e9%9b%86%e5%90%88","status":"publish","type":"post","link":"http:\/\/xuanyuan123.site\/wordPress\/2025\/03\/13\/swiftui%e5%b8%b8%e8%a7%81%e7%bc%96%e8%af%91%e6%8a%a5%e9%94%99%e9%9b%86%e5%90%88\/","title":{"rendered":"SwiftUI\u5e38\u89c1\u7f16\u8bd1\u62a5\u9519\u96c6\u5408"},"content":{"rendered":"\n<p>SwiftUI\u7ecf\u5e38\u51fa\u73b0\u7f16\u8bd1\u4e0d\u8fc7\u7684\u72b6\u51b5\uff0c\u4f46\u662fXcode\u9519\u8bef\u63d0\u793a\u5f80\u5f80\u4e0d\u662f\u771f\u6b63\u7684\u9519\u8bef\u539f\u56e0\uff0c\u5bfc\u81f4\u6392\u67e5\u9700\u8981\u5f88\u957f\u65f6\u95f4\uff0c\u7d22\u6027\uff0c\u5728\u8fd9\u91cc\u5c31\u628a\u5f00\u53d1\u4e2d\u78b0\u5230\u4e00\u4e9b\u5947\u5947\u602a\u602a\u7684\u7f16\u8bd1\u62a5\u9519\u60c5\u51b5\u505a\u4e0b\u6536\u96c6\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528var\u4fee\u9970\u53d8\u91cf\uff0c\u5e76\u4fee\u6539\u53d8\u91cf\uff0c\u5bfc\u81f4\u7f16\u8bd1\u4e0d\u8fc7<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>ForEach(0..&lt;5) { index in\n  var width = 100\n  \/\/add some logic to calculate the value of width and assign the new value to variable width\n\/\/ \u2026\u2026\n  width = newValue\n  Text(\"hello world!)\n}<\/code><\/pre>\n\n\n\n<p>\u8fd9\u6bb5\u4ee3\u7801\u662f\u4f1a\u7f16\u8bd1\u62a5\u9519\uff0c\u5728Xcode\u4e2d\u62a5\u9519\u7684\u539f\u56e0\u8bf4\u662fForEach\u5faa\u73af\u7684\u533a\u95f4\u95ee\u9898\uff080..&lt;5\uff09\uff0c\u4f46\u5b9e\u9645\u4e0a\u95ee\u9898\u5728\u4e8eForEach\u51fd\u6570\u5185\u90e8\u662f\u4e0d\u5141\u8bb8\u5bf9var\u4fee\u9970\u7684\u53d8\u91cf\u91cd\u65b0\u8d4b\u503c\u7684\uff0c\u5c06\u4ee3\u7801\u4fee\u6539\u4e3a\u5982\u4e0b\uff0c\u5c31\u53ef\u4ee5\u7f16\u8bd1\u901a\u8fc7\u4e86\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ForEach(0..&lt;5) { index in\n  let width = calcuteValue()\n  Text(\"hello world!)\n}<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SwiftUI\u7ecf\u5e38\u51fa\u73b0\u7f16\u8bd1\u4e0d\u8fc7\u7684\u72b6\u51b5\uff0c\u4f46\u662fXcode\u9519\u8bef\u63d0\u793a\u5f80\u5f80\u4e0d\u662f\u771f\u6b63\u7684\u9519\u8bef\u539f\u56e0\uff0c\u5bfc\u81f4\u6392\u67e5\u9700\u8981\u5f88\u957f\u65f6\u95f4\uff0c\u7d22\u6027 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-61","post","type-post","status-publish","format-standard","hentry","category-4"],"_links":{"self":[{"href":"http:\/\/xuanyuan123.site\/wordPress\/wp-json\/wp\/v2\/posts\/61","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/xuanyuan123.site\/wordPress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/xuanyuan123.site\/wordPress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/xuanyuan123.site\/wordPress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/xuanyuan123.site\/wordPress\/wp-json\/wp\/v2\/comments?post=61"}],"version-history":[{"count":1,"href":"http:\/\/xuanyuan123.site\/wordPress\/wp-json\/wp\/v2\/posts\/61\/revisions"}],"predecessor-version":[{"id":62,"href":"http:\/\/xuanyuan123.site\/wordPress\/wp-json\/wp\/v2\/posts\/61\/revisions\/62"}],"wp:attachment":[{"href":"http:\/\/xuanyuan123.site\/wordPress\/wp-json\/wp\/v2\/media?parent=61"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/xuanyuan123.site\/wordPress\/wp-json\/wp\/v2\/categories?post=61"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/xuanyuan123.site\/wordPress\/wp-json\/wp\/v2\/tags?post=61"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}