{"id":6818,"date":"2025-06-02T13:17:16","date_gmt":"2025-06-05T06:17:16","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=6818"},"modified":"2025-06-05T13:17:16","modified_gmt":"2025-06-05T06:17:16","slug":"https-badgameshow-com-steven-85","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/https-badgameshow-com-steven-85\/","title":{"rendered":"2025 \u6700\u65b0 Swift \u96e2\u7dda\u8cc7\u6599\u5132\u5b58\u6280\u5de7\uff1a\u6df1\u5165\u4e86\u89e3 NSCoding \ud83d\udcbe"},"content":{"rendered":"<p>&#8220;`html<br \/>\n<meta name=\"keywords\" content=\"swift, NSCoding, \u96e2\u7dda\u8cc7\u6599, Swift \u7a0b\u5f0f\u6559\u5b78, iOS \u958b\u767c\"><\/p>\n<p>Swift \u662f\u4e00\u7a2e\u5feb\u901f\u3001\u5b89\u5168\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u958b\u767c\u529f\u80fd\u5f37\u5927\u7684 iOS\u3001macOS\u3001watchOS \u548c tvOS \u61c9\u7528\u7a0b\u5f0f\u3002\u5728 Swift \u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5229\u7528 <strong>NSCoding<\/strong> \u4f86\u5132\u5b58\u548c\u8b80\u53d6\u96e2\u7dda\u8cc7\u6599\u3002<\/p>\n<h2>\u4ec0\u9ebc\u662f NSCoding\uff1f<\/h2>\n<p><strong>NSCoding<\/strong> \u662f\u4e00\u7a2e Swift \u7684\u5354\u5b9a\uff0c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u5c07\u7269\u4ef6\u8f49\u63db\u70ba\u53ef\u5132\u5b58\u683c\u5f0f\u7684\u65b9\u5f0f\uff0c\u4e26\u80fd\u5728\u9700\u8981\u6642\u5c07\u5176\u8b80\u56de\u3002\u9019\u5c0d\u65bc\u9700\u8981\u5728\u61c9\u7528\u7a0b\u5f0f\u4e2d\u5132\u5b58\u4e00\u4e9b\u7528\u6236\u6578\u64da\u6216\u72c0\u614b\u7684\u60c5\u6cc1\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h2>\u5982\u4f55\u4f7f\u7528 NSCoding<\/h2>\n<p>\u8981\u4f7f\u7528 NSCoding\uff0c\u958b\u767c\u8005\u9700\u8981\u5c07\u7269\u4ef6\u985e\u5225\u5ba3\u544a\u70ba\u9075\u5faa NSCoding \u5354\u5b9a\uff0c\u4e26\u5be6\u4f5c\u5169\u500b\u65b9\u6cd5\uff1a<code>encode<\/code> \u548c <code>decode<\/code>\u3002<\/p>\n<pre><code class=\"language-swift line-numbers\">class MyObject: NSObject, NSCoding {\n    var name: String\n    var age: Int\n\n    func encode(with aCoder: NSCoder) {\n        aCoder.encode(name, forKey: \"name\")\n        aCoder.encode(age, forKey: \"age\")\n    }\n\n    required init?(coder aDecoder: NSCoder) {\n        name = aDecoder.decodeObject(forKey: \"name\") as! String\n        age = aDecoder.decodeInteger(forKey: \"age\")\n    }\n\n    init(name: String, age: Int) {\n        self.name = name\n        self.age = age\n    }\n}\n<\/code><\/pre>\n<h2>\u5132\u5b58\u548c\u8b80\u53d6\u96e2\u7dda\u8cc7\u6599<\/h2>\n<p>\u4e00\u65e6\u7269\u4ef6\u985e\u5225\u9075\u5faa\u4e86 NSCoding \u5354\u5b9a\u4e26\u5be6\u4f5c\u4e86\u5fc5\u8981\u7684\u65b9\u6cd5\uff0c\u5c31\u53ef\u4ee5\u958b\u59cb\u5132\u5b58\u548c\u8b80\u53d6\u96e2\u7dda\u8cc7\u6599\u3002<\/p>\n<h3>\u5132\u5b58\u96e2\u7dda\u8cc7\u6599<\/h3>\n<p>\u8981\u5132\u5b58\u96e2\u7dda\u8cc7\u6599\uff0c\u53ef\u4ee5\u4f7f\u7528 <strong>NSKeyedArchiver<\/strong> \u985e\u5225\uff0c\u9019\u500b\u985e\u5225\u80fd\u5c07\u7269\u4ef6\u7684\u8cc7\u6599\u7de8\u78bc\u6210\u4e8c\u9032\u4f4d\u683c\u5f0f\u4e26\u5132\u5b58\u5728\u672c\u5730\u7aef\u3002<\/p>\n<pre><code class=\"language-swift line-numbers\">let myObject = MyObject(name: \"John\", age: 20)\nlet filePath = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!\nlet fileURL = filePath.appendingPathComponent(\"myObject\")\n\ndo {\n    let data = try NSKeyedArchiver.archivedData(withRootObject: myObject, requiringSecureCoding: false)\n    try data.write(to: fileURL)\n} catch {\n    print(\"\u5132\u5b58\u8cc7\u6599\u6642\u767c\u751f\u932f\u8aa4\uff1a\\(error)\")\n}\n<\/code><\/pre>\n<h3>\u8b80\u53d6\u96e2\u7dda\u8cc7\u6599<\/h3>\n<p>\u8981\u8b80\u53d6\u96e2\u7dda\u8cc7\u6599\uff0c\u53ef\u4ee5\u4f7f\u7528 <strong>NSKeyedUnarchiver<\/strong> \u985e\u5225\uff0c\u9019\u500b\u985e\u5225\u80fd\u5c07\u672c\u5730\u7aef\u7684\u4e8c\u9032\u4f4d\u8cc7\u6599\u89e3\u78bc\u70ba\u7269\u4ef6\u3002<\/p>\n<pre><code class=\"language-swift line-numbers\">do {\n    let data = try Data(contentsOf: fileURL)\n    let myObject = try NSKeyedUnarchiver.unarchiveTopLevelObjectWithData(data) as? MyObject\n    print(\"\u8b80\u53d6\u7684\u7269\u4ef6\uff1a\\(myObject?.name ?? \"\u672a\u77e5\")\uff0c\u5e74\u9f61\uff1a\\(myObject?.age ?? 0)\")\n} catch {\n    print(\"\u8b80\u53d6\u8cc7\u6599\u6642\u767c\u751f\u932f\u8aa4\uff1a\\(error)\")\n}\n<\/code><\/pre>\n<h2>\u932f\u8aa4\u6392\u9664<\/h2>\n<p>\u5728\u4f7f\u7528 NSCoding \u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u932f\u8aa4\uff1a<\/p>\n<ul>\n<li><strong>\u7269\u4ef6\u672a\u5be6\u4f5c NSCoding\uff1a<\/strong> \u78ba\u4fdd\u6240\u6709\u9700\u8981\u5132\u5b58\u7684\u7269\u4ef6\u90fd\u9075\u5faa NSCoding \u5354\u5b9a\u3002<\/li>\n<li><strong>\u6a94\u6848\u8def\u5f91\u4e0d\u6b63\u78ba\uff1a<\/strong> \u78ba\u8a8d\u5132\u5b58\u548c\u8b80\u53d6\u7684\u6a94\u6848\u8def\u5f91\u6b63\u78ba\u3002<\/li>\n<li><strong>\u6578\u64da\u683c\u5f0f\u932f\u8aa4\uff1a<\/strong> \u78ba\u4fdd\u5728\u8b80\u53d6\u6642\u4f7f\u7528\u7684\u6578\u64da\u8207\u5132\u5b58\u6642\u7684\u683c\u5f0f\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<h2>\u5ef6\u4f38\u61c9\u7528<\/h2>\n<p>\u9664\u4e86\u4f7f\u7528 NSCoding\uff0c\u958b\u767c\u8005\u9084\u53ef\u4ee5\u8003\u616e\u4f7f\u7528 <strong>UserDefaults<\/strong> \u5132\u5b58\u7c21\u55ae\u7684\u6578\u64da\uff0c\u6216\u4f7f\u7528 <strong>Core Data<\/strong> \u9032\u884c\u66f4\u8907\u96dc\u7684\u8cc7\u6599\u7ba1\u7406\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2023\/02\/Swift-\u96e2\u7dda\u8cc7\u6599\uff1aNSCoding-\ud83d\udcbe_1675396338.2562041.webp\" alt=\"Swift \u96e2\u7dda\u8cc7\u6599\uff1aNSCoding \ud83d\udcbe\" title=\"Swift \u96e2\u7dda\u8cc7\u6599, NSCoding \ud83d\udcbe, \u96e2\u7dda\u8cc7\u6599\u5132\u5b58, \u8cc7\u6599\u8f49\u63db, \u8cc7\u6599\u5132\u5b58\" width=\"1200\" height=\"628\"\/><\/p>\n<h2>Q&#038;A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<h3>Q1: NSCoding \u548c Codable \u6709\u4ec0\u9ebc\u4e0d\u540c\uff1f<\/h3>\n<p>NSCoding \u662f\u4e00\u7a2e\u8f03\u820a\u7684\u5e8f\u5217\u5316\u65b9\u6cd5\uff0c\u9069\u7528\u65bc Objective-C \u548c Swift\u3002\u800c Codable \u662f Swift 5 \u5f15\u5165\u7684\u65b0\u65b9\u5f0f\uff0c\u63d0\u4f9b\u4e86\u66f4\u7c21\u6f54\u3001\u5b89\u5168\u7684\u6578\u64da\u8f49\u63db\u65b9\u5f0f\u3002<\/p>\n<h3>Q2: \u6211\u53ef\u4ee5\u5728 SwiftUI \u4e2d\u4f7f\u7528 NSCoding \u55ce\uff1f<\/h3>\n<p>\u662f\u7684\uff0c\u60a8\u53ef\u4ee5\u5728 SwiftUI \u4e2d\u4f7f\u7528 NSCoding\uff0c\u4f46\u5efa\u8b70\u4f7f\u7528 Codable \u4f86\u7372\u5f97\u66f4\u597d\u7684 Swift \u652f\u63f4\u548c\u66f4\u7c21\u55ae\u7684\u8a9e\u6cd5\u3002<\/p>\n<h3>Q3: \u5982\u4f55\u63d0\u9ad8 NSCoding \u7684\u5b89\u5168\u6027\uff1f<\/h3>\n<p>\u70ba\u63d0\u9ad8\u5b89\u5168\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528 <strong>requiringSecureCoding<\/strong> \u53c3\u6578\uff0c\u4e26\u78ba\u4fdd\u53ea\u89e3\u78bc\u4f86\u81ea\u53ef\u4fe1\u4f86\u6e90\u7684\u6578\u64da\u3002<\/p>\n<p>&#8220;`<br \/>\n&#8212;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981(Description):\u4e86\u89e3Swift\u4e2dNSCoding\ud83d\udcbe\u7684\u96e2\u7dda\u8cc7\u6599\u5132\u5b58\u65b9\u5f0f\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5c07\u8cc7\u6599\u5132\u5b58\u5728\u672c\u5730\u7aef\uff0c\u4e26\u4e14\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u8cc7\u6599\u8f49\u63db\u6210\u7269\u4ef6\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u8cc7\u6599\u5132\u5b58\u5728\u672c\u5730\u7aef\u3002<\/p>\n","protected":false},"author":1,"featured_media":6817,"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-6818","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\/Swift-\u96e2\u7dda\u8cc7\u6599\uff1aNSCoding-\ud83d\udcbe_1675396338.2562041.webp","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1LY","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6818","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=6818"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6818\/revisions"}],"predecessor-version":[{"id":13539,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6818\/revisions\/13539"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/6817"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=6818"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=6818"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=6818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}