{"id":5126,"date":"2022-02-22T13:29:05","date_gmt":"2022-02-22T05:29:05","guid":{"rendered":"http:\/\/123.57.164.21\/?p=5126"},"modified":"2022-02-22T13:37:46","modified_gmt":"2022-02-22T05:37:46","slug":"swiftui-%e7%9a%84%e4%b8%80%e4%ba%9btips","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=5126","title":{"rendered":"SwiftUI \u7684\u4e00\u4e9bTips"},"content":{"rendered":"\n<p>\u66f4\u65b0\u4e00\u4e9bSwitfUI 3.0\u6700\u65b0\u6dfb\u52a0\u7684\u4e00\u4e9b\u8bed\u6cd5\u6216\u8005\u63a7\u4ef6\u7b49\u7b49\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Self._printChanges()<\/h4>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u7531\u4e8eSwiftUI\u7684\u66f4\u65b0\u673a\u5236\uff0c\u5728\u5f88\u591a\u65f6\u5019\u6211\u4eec\u9700\u8981\u77e5\u9053\u4ec0\u4e48\u5f15\u8d77\u4e86\u9875\u9762\u7684\u66f4\u65b0\uff0c\u5728IOS15\uff0cmacOC12.0\u4ee5\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Self._printChanges()\u6765\u6253\u5370view\u53d8\u6362\u7684\u5185\u5bb9<\/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=\"\">import SwiftUI\nimport TestPackage\n\nstruct ContentView: View {\n    @State var msg: Int = 0\n    var body: some View {\n        Self._printChanges()\n        return Text(\"\\(self.msg)\").onTapGesture {\n            self.msg += 1\n        }\n    }\n}\n<\/pre>\n\n\n\n<p>\u8fd9\u6837\u5f53View\u5728\u67d0\u4e2a\u5185\u5bb9\u66f4\u65b0\u7684\u65f6\u5019\uff0c\u63a7\u5236\u53f0\u4f1a\u6253\u5370\u51fa\u53d8\u6362\u7684\u5185\u5bb9\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u53d8\u5316\u7684\u5185\u5bb9\u6765\u5224\u65ad\u95ee\u9898\u3002<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-58-561x1024.png\" alt=\"\" class=\"wp-image-5128\" width=\"242\" height=\"441\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-58-561x1024.png 561w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-58-164x300.png 164w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-58-230x419.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-58-350x638.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-58-480x875.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-58.png 704w\" sizes=\"(max-width: 242px) 100vw, 242px\" \/><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-59-1024x143.png\" alt=\"\" class=\"wp-image-5129\" width=\"439\" height=\"61\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-59-1024x143.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-59-300x42.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-59-768x107.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-59-1536x214.png 1536w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-59-830x116.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-59-230x32.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-59-350x49.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-59-480x67.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-59.png 1708w\" sizes=\"(max-width: 439px) 100vw, 439px\" \/><\/figure><\/div>\n<\/div>\n<\/div>\n\n\n\n<h4 class=\"wp-block-heading\">\u5360\u4f4d\u663e\u793a\uff08redacted\uff09<\/h4>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u663e\u793a\u7c7b\u4f3c\u5360\u4f4d\u56fe\u6548\u679c\u6837\u5f0f macOS 11.0+  iOS14.0+ watchOS7.0+<\/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=\"\">func redacted(reason: RedactionReasons) -> some View\n<\/pre>\n\n\n\n<ul><li>reason:\u663e\u793a\u5360\u4f4d\u6837\u5f0f\u7684\u539f\u56e0\uff0c\u662f\u4e00\u4e2aOptionSet\uff0c\u73b0\u9636\u6bb5\u5305\u542b .placeholder \u548c .privacy\u4e24\u79cd<\/li><\/ul>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684@Environment\u6765\u83b7\u5f97View\u662f\u5426\u663e\u793a\u5360\u4f4d\u7684\u6548\u679c<\/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=\"\">@Environment(\\.redactionReasons) var redacted\n<\/pre>\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=\"\">@available(iOS 15.0, macOS 12.0, *)\nstruct RedactedView: View {\n    var body: some View {\n        Form {\n            Section {\n                InfoView(icon: \"envelope.badge.fill\", text: \"834599524@qq.com\")\n                InfoView(icon: \"location.circle.fill\", text: \"\u5317\u4eac\u5e02\u660c\u5e73\u533a\u4f73\u8fd0\u56ed\")\n            } header: {\n                Text(\"\u4e2a\u4eba\u4fe1\u606f\")\n                    .font(.caption)\n            }\n        }\n    }\n    \n    struct InfoView: View {\n        var icon: String\n        var text: String\n        \n        @State var hide = true\n        var body: some View {\n            HStack {\n                Label(text, systemImage: icon)\n                    .redacted(reason: hide ? .placeholder : .privacy)\n                Spacer()\n                Button {\n                    hide.toggle()\n                } label: {\n                    Image(systemName: hide ? \"eye.circle.fill\" : \"eye.slash.fill\")\n                }.unredacted()\n            }\n        }\n    }\n}\n<\/pre>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-60.png\" alt=\"\" class=\"wp-image-5132\" width=\"484\" height=\"288\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-60.png 730w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-60-300x178.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-60-230x137.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-60-350x208.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/02\/\u56fe\u7247-60-480x285.png 480w\" sizes=\"(max-width: 484px) 100vw, 484px\" \/><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u66f4\u65b0\u4e00\u4e9bSwitfUI 3.0\u6700\u65b0\u6dfb\u52a0\u7684\u4e00\u4e9b\u8bed\u6cd5\u6216\u8005\u63a7\u4ef6\u7b49\u7b49\u3002 Self._printChanges() \u7531\u4e8e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5126"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5126"}],"version-history":[{"count":3,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5126\/revisions"}],"predecessor-version":[{"id":5133,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5126\/revisions\/5133"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}