{"id":7700,"date":"2025-06-02T13:45:01","date_gmt":"2025-06-05T06:33:00","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=7700"},"modified":"2025-06-05T13:45:01","modified_gmt":"2025-06-05T06:33:00","slug":"https-badgameshow-com-steven-493","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/https-badgameshow-com-steven-493\/","title":{"rendered":"\u5728 SwiftUI \u4e2d\u4f7f\u7528 TabView\uff1a2025 \u6700\u65b0\u6307\u5357\u8207\u5be6\u4f5c\u7bc4\u4f8b"},"content":{"rendered":"

<\/p>\n

\u5728 SwiftUI \u4e2d\u4f7f\u7528 TabView \u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u529f\u80fd\uff0c\u8b93\u958b\u767c\u8005\u80fd\u5920\u5728\u4e00\u500b\u756b\u9762\u4e2d\u8f15\u9b06\u986f\u793a\u591a\u500b\u9801\u9762\u4e26\u5728\u5b83\u5011\u4e4b\u9593\u5207\u63db\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 SwiftUI \u4e2d\u4f7f\u7528 TabView \u4f86\u5275\u5efa\u4e00\u500b\u591a\u6a19\u7c64\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u4e26\u63d0\u4f9b\u5b8c\u6574\u7684 2025 \u6700\u65b0\u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n

\u5275\u5efa TabView<\/h2>\n

\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5275\u5efa\u4e00\u500b TabView\uff0c\u5b83\u53ef\u4ee5\u5305\u542b\u591a\u500b\u6a19\u7c64\uff0c\u6bcf\u500b\u6a19\u7c64\u90fd\u5c0d\u61c9\u4e00\u500b\u8996\u5716\u3002TabView \u7684\u5275\u5efa\u975e\u5e38\u7c21\u55ae\uff0c\u53ea\u9700\u4f7f\u7528 TabView \u985e\u578b\u7684\u521d\u59cb\u5316\u65b9\u6cd5\uff0c\u4e26\u5c07\u8981\u986f\u793a\u7684\u8996\u5716\u50b3\u5165\u5373\u53ef\uff1a<\/p>\n

struct ContentView: View {\n    var body: some View {\n        TabView {\n            Text(\"First View\")\n                .tabItem {\n                    Image(systemName: \"1.circle\")\n                    Text(\"First\")\n                }\n            Text(\"Second View\")\n                .tabItem {\n                    Image(systemName: \"2.circle\")\n                    Text(\"Second\")\n                }\n            Text(\"Third View\")\n                .tabItem {\n                    Image(systemName: \"3.circle\")\n                    Text(\"Third\")\n                }\n        }\n    }\n}\n<\/code><\/pre>\n
\u4e0a\u9762\u7684\u4ee3\u78bc\u5c07\u5275\u5efa\u4e00\u500b\u5305\u542b\u4e09\u500b\u6a19\u7c64\u7684 TabView\uff0c\u6bcf\u500b\u6a19\u7c64\u90fd\u5c0d\u61c9\u4e00\u500b\u6587\u672c\u8996\u5716\uff0c\u7576\u4f60\u9078\u64c7\u4e0d\u540c\u7684\u6a19\u7c64\u6642\uff0c\u5c0d\u61c9\u7684\u8996\u5716\u5c31\u6703\u986f\u793a\u51fa\u4f86\u3002<\/p>\n
\u8a2d\u7f6e\u6a19\u7c64\u7684\u6a19\u984c\u548c\u5716\u6a19<\/h2>\n
\u7576\u4f60\u5275\u5efa\u4e86 TabView \u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528 tabItem<\/code> \u4fee\u98fe\u7b26\u4f86\u70ba\u6bcf\u500b\u6a19\u7c64\u8a2d\u7f6e\u6a19\u984c\u548c\u5716\u6a19\uff1a<\/p>\n
Text(\"First View\")\n    .tabItem {\n        Image(systemName: \"1.circle\")\n        Text(\"First\")\n    }\n<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u70ba\u6bcf\u500b\u6a19\u7c64\u8a2d\u7f6e\u4e86\u5716\u6a19\u548c\u6a19\u984c\uff0c\u8b93\u4f7f\u7528\u8005\u5728\u4e0d\u540c\u7684\u6a19\u7c64\u4e4b\u9593\u5207\u63db\u6642\u80fd\u5920\u66f4\u76f4\u89c0\u5730\u8fa8\u8b58\u3002<\/p>\n
\u8a2d\u7f6e\u9ed8\u8a8d\u6a19\u7c64<\/h2>\n
\u4f60\u53ef\u4ee5\u4f7f\u7528 @State<\/code> \u5c6c\u6027\u4f86\u8a2d\u7f6e\u9ed8\u8a8d\u986f\u793a\u7684\u6a19\u7c64\uff1a<\/p>\n
struct ContentView: View {\n    @State private var selectedTab = 1\n\n    var body: some View {\n        TabView(selection: $selectedTab) {\n            Text(\"First View\")\n                .tabItem {\n                    Image(systemName: \"1.circle\")\n                    Text(\"First\")\n                }\n                .tag(1)\n            Text(\"Second View\")\n                .tabItem {\n                    Image(systemName: \"2.circle\")\n                    Text(\"Second\")\n                }\n                .tag(2)\n            Text(\"Third View\")\n                .tabItem {\n                    Image(systemName: \"3.circle\")\n                    Text(\"Third\")\n                }\n                .tag(3)\n        }\n        .onAppear {\n            self.selectedTab = 2 \/\/ \u8a2d\u7f6e\u9ed8\u8a8d\u986f\u793a\u7684\u6a19\u7c64\n        }\n    }\n}\n<\/code><\/pre>\n
\u4e0a\u9762\u7684\u4ee3\u78bc\u5c07\u9ed8\u8a8d\u986f\u793a\u7684\u6a19\u7c64\u8a2d\u7f6e\u70ba\u7b2c\u4e8c\u500b\u6a19\u7c64\uff0c\u4e5f\u5c31\u662f Second View<\/code>\u3002<\/p>\n
\u932f\u8aa4\u6392\u9664\u8207\u6700\u4f73\u5be6\u8e10<\/h2>\n
\u5728\u958b\u767c\u904e\u7a0b\u4e2d\uff0c\u4f60\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u4f8b\u5982\u6a19\u7c64\u7684\u7d22\u5f15\u8a2d\u5b9a\u4e0d\u6b63\u78ba\uff0c\u6216\u662f\u7121\u6cd5\u5207\u63db\u6a19\u7c64\u3002\u78ba\u4fdd\u6bcf\u500b\u6a19\u7c64\u90fd\u6709\u5176\u5c0d\u61c9\u7684 tag<\/code>\uff0c\u9019\u6a23\u624d\u80fd\u6b63\u78ba\u5730\u8207 selectedTab<\/code> \u5c6c\u6027\u9032\u884c\u7d81\u5b9a\u3002<\/p>\n
\u5ef6\u4f38\u61c9\u7528<\/h2>\n
\u4f60\u53ef\u4ee5\u9032\u4e00\u6b65\u64f4\u5c55 TabView \u7684\u529f\u80fd\uff0c\u4f8b\u5982\u5728\u6bcf\u500b\u6a19\u7c64\u4e2d\u5d4c\u5165\u4e0d\u540c\u7684\u8996\u5716\u7d44\u5408\uff0c\u751a\u81f3\u4f7f\u7528 NavigationView \u4f86\u5be6\u73fe\u66f4\u8907\u96dc\u7684\u8996\u5716\u7d50\u69cb\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5be6\u4f5c\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5c07 TabView \u8207 NavigationView \u7d50\u5408\u4f7f\u7528\uff1a<\/p>\n
struct ContentView: View {\n    var body: some View {\n        TabView {\n            NavigationView {\n                Text(\"First View\")\n            }\n            .tabItem {\n                Image(systemName: \"1.circle\")\n                Text(\"First\")\n            }\n            \n            NavigationView {\n                Text(\"Second View\")\n            }\n            .tabItem {\n                Image(systemName: \"2.circle\")\n                Text(\"Second\")\n            }\n        }\n    }\n}\n<\/code><\/pre>\n
\u9019\u6a23\u53ef\u4ee5\u8b93\u6bcf\u500b\u6a19\u7c64\u4e2d\u7684\u8996\u5716\u66f4\u5177\u4e92\u52d5\u6027\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5982\u4f55\u5728 SwiftUI \u4e2d\u4f7f\u7528 TabView \u4f86\u5275\u5efa\u4e00\u500b\u591a\u6a19\u7c64\u7684\u61c9\u7528\u7a0b\u5e8f\u3002\u6211\u5011\u5b78\u7fd2\u4e86\u5982\u4f55\u5275\u5efa TabView\uff0c\u70ba\u6bcf\u500b\u6a19\u7c64\u8a2d\u7f6e\u6a19\u984c\u548c\u5716\u6a19\uff0c\u4ee5\u53ca\u5982\u4f55\u8a2d\u7f6e\u9ed8\u8a8d\u986f\u793a\u7684\u6a19\u7c64\u3002\u900f\u904e\u9019\u4e9b\u6b65\u9a5f\uff0c\u4f60\u53ef\u4ee5\u8f15\u9b06\u5730\u5728\u4e0d\u540c\u7684\u8996\u5716\u4e4b\u9593\u5207\u63db\uff0c\u589e\u5f37\u61c9\u7528\u7a0b\u5e8f\u7684\u53ef\u7528\u6027\u3002<\/p>\n
\"\u5728<\/p>\n
\u5e38\u898b\u554f\u984c\u89e3\u7b54 (Q&A)<\/h2>\n
1. TabView \u5982\u4f55\u4fdd\u6301\u72c0\u614b\uff1f<\/h3>\n
\u5728 SwiftUI \u4e2d\uff0c\u6bcf\u500b\u6a19\u7c64\u7684\u72c0\u614b\u6703\u81ea\u52d5\u4fdd\u6301\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 @State \u6216 @ObservedObject \u4f86\u7ba1\u7406\u72c0\u614b\u3002<\/p>\n
2. \u5982\u4f55\u6dfb\u52a0\u52d5\u614b\u5167\u5bb9\u5230 TabView \u4e2d\uff1f<\/h3>\n
\u4f60\u53ef\u4ee5\u5c07\u6578\u64da\u4f86\u6e90\u8207 TabView \u7d50\u5408\uff0c\u4f7f\u7528 ForEach \u5c07\u52d5\u614b\u5167\u5bb9\u6dfb\u52a0\u5230\u6bcf\u500b\u6a19\u7c64\u4e2d\u3002<\/p>\n
3. TabView \u652f\u63f4\u54ea\u4e9b\u81ea\u8a02\u6a23\u5f0f\uff1f<\/h3>\n
TabView \u652f\u63f4\u591a\u7a2e\u6a23\u5f0f\uff0c\u5982 .page \u548c .tabBar\uff0c\u4f60\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u9032\u884c\u81ea\u8a02\u3002<\/p>\n
—<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6458\u8981:\u5728SwiftUI\u4e2d\uff0cTabView\u662f\u4e00\u500b\u53ef\u4ee5\u8b93\u4f60\u5728App\u4e2d\u5efa\u7acb\u591a\u500b\u9801\u9762\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u8b93\u4f60\u5728App\u4e2d\u5efa\u7acb\u591a\u500b\u9801\u9762\uff0c\u4e26\u4e14\u53ef\u4ee5\u81ea\u8a02\u6bcf\u500b\u9801\u9762\u7684\u5167\u5bb9\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728SwiftUI\u4e2d\u4f7f\u7528TabView\u4f86\u5efa\u7acbApp\u7684\u591a\u9801\u9762\u529f\u80fd\u3002<\/p>\n","protected":false},"author":1,"featured_media":7699,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[174,5],"tags":[173,9],"class_list":["post-7700","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ios","category-swift","tag-ios","tag-swift"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2023\/02\/\u5728-SwiftUI-\u4e2d\u4f7f\u7528-TabView_1676960607.850179.webp","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-20c","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/7700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=7700"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/7700\/revisions"}],"predecessor-version":[{"id":13323,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/7700\/revisions\/13323"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/7699"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=7700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=7700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=7700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}