{"id":7079,"date":"2025-06-01T14:24:16","date_gmt":"2025-06-05T06:55:16","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=7079"},"modified":"2025-06-05T14:24:16","modified_gmt":"2025-06-05T06:55:16","slug":"https-badgameshow-com-steven-214","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/https-badgameshow-com-steven-214\/","title":{"rendered":"Swift CoreData \u5b8c\u6574\u6307\u5357\uff1a\u5982\u4f55\u4f7f\u7528 2025 \u6700\u65b0\u8a9e\u6cd5\u5132\u5b58\u751f\u6d3b\u7d00\u9304 \ud83d\udcbe"},"content":{"rendered":"

<\/p>\n

Swift CoreData \u5b8c\u6574\u6307\u5357\uff1a\u5982\u4f55\u4f7f\u7528 2025 \u6700\u65b0\u8a9e\u6cd5\u5132\u5b58\u751f\u6d3b\u7d00\u9304 \ud83d\udcbe<\/h1>\n

\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0c\u73fe\u5728\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 Swift \u4f86\u5132\u5b58\u8cc7\u6599\uff0c\u800c CoreData \u662f\u4e00\u500b\u5f37\u5927\u7684\u8cc7\u6599\u5eab\u6846\u67b6\uff0c\u5e6b\u52a9\u6211\u5011\u8f15\u9b06\u5730\u5132\u5b58\u548c\u7ba1\u7406\u8cc7\u6599\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528 Swift \u548c CoreData \u4f86\u5132\u5b58\u548c\u7ba1\u7406\u751f\u6d3b\u7d00\u9304\uff0c\u4e26\u63d0\u4f9b\u5be6\u4f5c\u7bc4\u4f8b\u53ca\u932f\u8aa4\u6392\u9664\u6280\u5de7\u3002<\/p>\n

\u4ec0\u9ebc\u662f CoreData\uff1f<\/h2>\n

CoreData \u662f\u4e00\u500b\u8cc7\u6599\u5eab\u6846\u67b6\uff0c\u4e3b\u8981\u7528\u65bc\u8cc7\u6599\u6301\u4e45\u5316\u548c\u7ba1\u7406\u3002\u5b83\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5c07\u8cc7\u6599\u5132\u5b58\u5728\u8a2d\u5099\u4e0a\uff0c\u4e26\u4e14\u53ef\u4ee5\u6709\u6548\u5730\u5728\u4e0d\u540c\u7684\u61c9\u7528\u7a0b\u5f0f\u4e4b\u9593\u5171\u4eab\u8cc7\u6599\u3002CoreData \u900f\u904e\u7269\u4ef6\u5c0e\u5411\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u8cc7\u6599\uff0c\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u66f4\u76f4\u89c0\u5730\u64cd\u4f5c\u8cc7\u6599\u5eab\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528 Swift \u548c CoreData \u5132\u5b58\u8cc7\u6599\uff1f<\/h2>\n

\u70ba\u4e86\u4f7f\u7528 Swift \u548c CoreData \u5132\u5b58\u8cc7\u6599\uff0c\u60a8\u9700\u8981\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n

1. **\u5efa\u7acb Data Model**\uff1a\u9019\u662f\u4e00\u500b\u63cf\u8ff0\u8cc7\u6599\u6a21\u578b\u7684\u6a94\u6848\uff0c\u60a8\u53ef\u4ee5\u5728 Xcode \u4e2d\u900f\u904e .xcdatamodeld \u6a94\u6848\u4f86\u5b9a\u7fa9\u8cc7\u6599\u6a21\u578b\u7684\u5c6c\u6027\u548c\u95dc\u4fc2\u3002<\/p>\n

2. **\u5efa\u7acb Managed Object Context**\uff1a\u9019\u662f\u4e00\u500b\u5c0d\u8c61\uff0c\u5141\u8a31\u60a8\u5c0d\u8cc7\u6599\u5eab\u9032\u884c\u64cd\u4f5c\uff0c\u4f8b\u5982\u5132\u5b58\u3001\u66f4\u65b0\u548c\u522a\u9664\u8cc7\u6599\u3002<\/p>\n

3. **\u5efa\u7acb Managed Object**\uff1a\u9019\u662f\u4e00\u500b\u5c0d\u8c61\uff0c\u4ee3\u8868\u8cc7\u6599\u5eab\u4e2d\u7684\u8cc7\u6599\uff0c\u60a8\u53ef\u4ee5\u900f\u904e\u9019\u500b\u5c0d\u8c61\u4f86\u9032\u884c\u5404\u7a2e\u64cd\u4f5c\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528 Swift \u548c CoreData \u5132\u5b58\u751f\u6d3b\u7d00\u9304\uff1f<\/h2>\n

\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u5c07\u5177\u9ad4\u8aaa\u660e\u5982\u4f55\u4f7f\u7528 CoreData \u5132\u5b58\u751f\u6d3b\u7d00\u9304\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u5efa\u7acb\u4e00\u500b Data Model\uff0c\u9019\u88e1\u6211\u5011\u5c07\u5275\u5efa\u4e00\u500b\u540d\u70ba `LifeEvent` \u7684\u7269\u4ef6\uff0c\u4e26\u5305\u542b\u4ee5\u4e0b\u5c6c\u6027\uff1a<\/p>\n

– **date**\uff1a\u7528\u65bc\u5132\u5b58\u4e8b\u4ef6\u7684\u65e5\u671f\u3002
\n– **description**\uff1a\u7528\u65bc\u5132\u5b58\u4e8b\u4ef6\u7684\u63cf\u8ff0\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u5177\u9ad4\u7684\u6b65\u9a5f\u548c\u7a0b\u5f0f\u78bc\u7bc4\u4f8b\uff1a<\/p>\n

“`swift
\n\/\/ 1. \u5b9a\u7fa9 LifeEvent \u6a21\u578b
\nimport CoreData<\/p>\n

@objc(LifeEvent)
\npublic class LifeEvent: NSManagedObject {
\n @NSManaged public var date: Date?
\n @NSManaged public var descriptionText: String?
\n}<\/p>\n

\/\/ 2. \u5728 Managed Object Context \u4e2d\u5132\u5b58\u8cc7\u6599
\nlet managedObjectContext = … \/\/ \u7372\u53d6\u60a8\u7684 Managed Object Context<\/p>\n

\/\/ \u5275\u5efa\u4e00\u500b\u65b0\u7684 LifeEvent
\nlet lifeEvent = LifeEvent(context: managedObjectContext)<\/p>\n

\/\/ \u8a2d\u5b9a\u65e5\u671f\u548c\u63cf\u8ff0
\nlifeEvent.date = Date()
\nlifeEvent.descriptionText = “\u6211\u4eca\u5929\u53bb\u6563\u6b65\u4e86\u3002”<\/p>\n

\/\/ \u5132\u5b58 LifeEvent
\ndo {
\n try managedObjectContext.save()
\n print(“\u751f\u6d3b\u7d00\u9304\u5df2\u5132\u5b58\u6210\u529f\uff01”)
\n} catch {
\n print(“\u5132\u5b58\u5931\u6557\uff1a\\(error.localizedDescription)”)
\n}
\n“`<\/p>\n

\u5728\u4e0a\u8ff0\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5b9a\u7fa9\u4e86 `LifeEvent` \u985e\u5225\uff0c\u7136\u5f8c\u5728 Managed Object Context \u4e2d\u5275\u5efa\u4e00\u500b\u65b0\u7684\u751f\u6d3b\u4e8b\u4ef6\u7269\u4ef6\uff0c\u4e26\u5132\u5b58\u5176\u5c6c\u6027\u3002<\/p>\n

\u932f\u8aa4\u6392\u9664\u6280\u5de7<\/h2>\n

1. **\u7121\u6cd5\u5132\u5b58\u8cc7\u6599**\uff1a\u6aa2\u67e5 Managed Object Context \u662f\u5426\u6709\u6548\uff0c\u4e26\u78ba\u4fdd\u6240\u6709\u5fc5\u586b\u5c6c\u6027\u90fd\u6709\u8a2d\u5b9a\u3002
\n2. **\u8cc7\u6599\u6a21\u578b\u672a\u66f4\u65b0**\uff1a\u5982\u679c\u60a8\u5c0d\u8cc7\u6599\u6a21\u578b\u9032\u884c\u66f4\u6539\uff0c\u8acb\u78ba\u4fdd\u5728 Xcode \u4e2d\u91cd\u65b0\u751f\u6210\u985e\u5225\u3002<\/p>\n

\u5ef6\u4f38\u61c9\u7528<\/h2>\n

CoreData \u4e0d\u50c5\u53ef\u4ee5\u7528\u4f86\u5132\u5b58\u751f\u6d3b\u7d00\u9304\uff0c\u9084\u53ef\u4ee5\u61c9\u7528\u65bc\u8a31\u591a\u5176\u4ed6\u5834\u666f\uff0c\u4f8b\u5982\uff1a<\/p>\n

– \u5132\u5b58\u4f7f\u7528\u8005\u504f\u597d\u8a2d\u5b9a\u3002
\n– \u7ba1\u7406\u61c9\u7528\u7a0b\u5f0f\u4e2d\u7684\u7167\u7247\u6216\u6587\u4ef6\u3002
\n– \u5efa\u7acb\u591a\u7528\u6236\u74b0\u5883\u4e0b\u7684\u8cc7\u6599\u5171\u4eab\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5b78\u7fd2\u4e86\u5982\u4f55\u4f7f\u7528 Swift \u548c CoreData \u4f86\u5132\u5b58\u548c\u7ba1\u7406\u751f\u6d3b\u7d00\u9304\u3002\u6211\u5011\u4e86\u89e3\u4e86\u5982\u4f55\u5efa\u7acb Data Model\u3001Managed Object Context \u548c Managed Object\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u5011\u4f86\u5132\u5b58\u8cc7\u6599\u3002\u6211\u5011\u9084\u63d0\u4f9b\u4e86\u932f\u8aa4\u6392\u9664\u6280\u5de7\uff0c\u5e6b\u52a9\u60a8\u66f4\u9806\u5229\u5730\u5be6\u4f5c\u3002<\/p>\n

Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n

1. CoreData \u548c SQLite \u6709\u4ec0\u9ebc\u4e0d\u540c\uff1f<\/h3>\n

CoreData \u662f\u4e00\u500b\u8cc7\u6599\u7ba1\u7406\u6846\u67b6\uff0c\u63d0\u4f9b\u9ad8\u968e\u7684\u8cc7\u6599\u64cd\u4f5c\u529f\u80fd\uff0c\u800c SQLite \u5247\u662f\u5e95\u5c64\u7684\u8cc7\u6599\u5eab\u7cfb\u7d71\u3002CoreData \u53ef\u4ee5\u4f7f\u7528 SQLite \u4f5c\u70ba\u5176\u6301\u4e45\u5316\u5c64\u3002<\/p>\n

2. \u5982\u4f55\u5728 CoreData \u4e2d\u9032\u884c\u8cc7\u6599\u67e5\u8a62\uff1f<\/h3>\n

\u60a8\u53ef\u4ee5\u4f7f\u7528 NSFetchRequest \u4f86\u67e5\u8a62 CoreData \u4e2d\u7684\u8cc7\u6599\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u4f8b\u5b50\uff1a<\/p>\n

“`swift
\nlet fetchRequest: NSFetchRequest = LifeEvent.fetchRequest()
\nlet results = try managedObjectContext.fetch(fetchRequest)
\n“`<\/p>\n

3. CoreData \u53ef\u4ee5\u8207 SwiftUI \u4e00\u8d77\u4f7f\u7528\u55ce\uff1f<\/h3>\n

\u662f\u7684\uff0cCoreData \u53ef\u4ee5\u8207 SwiftUI \u7d50\u5408\u4f7f\u7528\uff0c\u60a8\u53ef\u4ee5\u5229\u7528 @FetchRequest \u4f86\u8f15\u9b06\u5730\u5728 SwiftUI \u4e2d\u986f\u793a\u548c\u7ba1\u7406\u8cc7\u6599\u3002<\/p>\n

\"Swift
\n—<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6458\u8981(Description):\u4e86\u89e3\u5982\u4f55\u4f7f\u7528SwiftCoreData\u5132\u5b58\u8cc7\u6599\uff0c\u7c21\u55ae\u8a18\u9304\u751f\u6d3b\u7d00\u9304\uff0c\u8b93\u4f60\u7684\u8cc7\u6599\u66f4\u5b89\u5168\uff0c\u66f4\u6709\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":7077,"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-7079","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-CoreData-\u5132\u5b58\u8cc7\u6599-\ud83d\udcbe-\u7c21\u55ae\u8a18\u9304\u751f\u6d3b\u7d00\u9304_1675402003.1767092.webp","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1Qb","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/7079","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=7079"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/7079\/revisions"}],"predecessor-version":[{"id":13229,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/7079\/revisions\/13229"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/7077"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=7079"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=7079"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=7079"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}