{"id":7290,"date":"2025-06-01T12:36:25","date_gmt":"2025-06-05T05:12:25","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=7290"},"modified":"2025-06-05T12:36:25","modified_gmt":"2025-06-05T05:12:25","slug":"https-badgameshow-com-steven-317","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/https-badgameshow-com-steven-317\/","title":{"rendered":"Swift \u5b9a\u6642\u5668\u5b8c\u5168\u6307\u5357\uff1a\u5982\u4f55\u4f7f\u7528 Timer \u985e\u5225\u4f86\u512a\u5316 iOS \u958b\u767c"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"swift, \u5b9a\u6642\u5668, iOS \u958b\u767c, Timer \u985e\u5225, Swift \u7a0b\u5f0f\u8a2d\u8a08\"><\/p>\n<h2>Swift \u5b9a\u6642\u5668\u5b8c\u5168\u6307\u5357 \ud83d\udd70\ufe0f<\/h2>\n<p>Swift \u662f\u4e00\u7a2e\u7528\u65bc\u958b\u767c iOS\u3001macOS\u3001watchOS \u548c tvOS \u61c9\u7528\u7a0b\u5f0f\u7684\u958b\u653e\u6e90\u78bc\u7a0b\u5f0f\u8a9e\u8a00\u3002\u7531\u860b\u679c\u516c\u53f8\u65bc 2014 \u5e74 WWDC \u767c\u5e03\uff0c\u5b83\u66ff\u4ee3\u4e86 Objective-C \u8a9e\u8a00\uff0c\u4e26\u4ee5\u5176\u5b89\u5168\u6027\u3001\u901f\u5ea6\u53ca\u6613\u7528\u6027\u8457\u7a31\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Swift \u4e2d\u7684\u5b9a\u6642\u5668\u529f\u80fd\uff0c\u4e26\u63d0\u4f9b\u6700\u65b0\u7684 2025 \u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h3>\u4ec0\u9ebc\u662f\u5b9a\u6642\u5668\uff1f<\/h3>\n<p>\u5728 Swift \u4e2d\uff0c\u5b9a\u6642\u5668\u662f\u4e00\u7a2e\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u6307\u5b9a\u7684\u6642\u9593\u5167\u57f7\u884c\u7279\u5b9a\u7684\u4efb\u52d9\u3002\u5b83\u53ef\u4ee5\u7528\u65bc\u57f7\u884c\u5b9a\u6642\u4efb\u52d9\uff0c\u4f8b\u5982\u6bcf\u9694\u4e00\u6bb5\u6642\u9593\u6aa2\u67e5\u61c9\u7528\u7a0b\u5f0f\u7684\u72c0\u614b\uff0c\u6216\u5728\u6307\u5b9a\u7684\u6642\u9593\u5167\u57f7\u884c\u67d0\u4e9b\u4efb\u52d9\u3002<\/p>\n<h3>\u4f7f\u7528 Timer \u985e\u5225\u5275\u5efa\u5b9a\u6642\u5668<\/h3>\n<p>Swift \u63d0\u4f9b\u4e86 <strong>Timer<\/strong> \u985e\u5225\u4f86\u5275\u5efa\u5b9a\u6642\u5668\u3002\u8a72\u985e\u5225\u7684 <strong>scheduledTimer<\/strong> \u65b9\u6cd5\u53ef\u4ee5\u5728\u6307\u5b9a\u7684\u6642\u9593\u5167\u57f7\u884c\u7279\u5b9a\u7684\u4efb\u52d9\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u4e00\u500b\u7c21\u55ae\u5b9a\u6642\u5668\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">let timer = Timer.scheduledTimer(withTimeInterval: 5.0, repeats: false) { timer in\n    \/\/ \u5728\u9019\u88e1\u57f7\u884c\u4f60\u60f3\u8981\u57f7\u884c\u7684\u4efb\u52d9\n    print(\"5\u79d2\u904e\u53bb\u4e86\uff01\")\n}\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7a0b\u5f0f\u78bc\u6703\u5728 5 \u79d2\u5f8c\u57f7\u884c\u6307\u5b9a\u7684\u4efb\u52d9\uff0c\u4e26\u4e14\u53ea\u6703\u57f7\u884c\u4e00\u6b21\u3002\u5982\u679c\u4f60\u5e0c\u671b\u5b9a\u6642\u5668\u6bcf\u9694\u4e00\u6bb5\u6642\u9593\u57f7\u884c\u4efb\u52d9\uff0c\u53ef\u4ee5\u5c07 <code>repeats<\/code> \u53c3\u6578\u8a2d\u7f6e\u70ba <code>true<\/code>\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">let timer = Timer.scheduledTimer(withTimeInterval: 5.0, repeats: true) { timer in\n    \/\/ \u5728\u9019\u88e1\u57f7\u884c\u4f60\u60f3\u8981\u57f7\u884c\u7684\u4efb\u52d9\n    print(\"\u6bcf5\u79d2\u57f7\u884c\u4e00\u6b21\uff01\")\n}\n<\/code><\/pre>\n<h3>\u53d6\u6d88\u5b9a\u6642\u5668<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u53d6\u6d88\u5b9a\u6642\u5668\u3002Timer \u985e\u5225\u63d0\u4f9b\u4e86\u4e00\u500b <strong>invalidate<\/strong> \u65b9\u6cd5\u4f86\u5be6\u73fe\u9019\u4e00\u9ede\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u9019\u500b\u65b9\u6cd5\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">timer.invalidate()\n<\/code><\/pre>\n<p>\u4f7f\u7528 Swift \u7684\u5b9a\u6642\u5668\uff0c\u958b\u767c\u8005\u80fd\u5920\u8f15\u9b06\u5730\u5728\u6307\u5b9a\u7684\u6642\u9593\u5167\u57f7\u884c\u7279\u5b9a\u7684\u4efb\u52d9\uff0c\u9019\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u958b\u767c\u6548\u7387\u3002<\/p>\n<h3>\u932f\u8aa4\u6392\u9664<\/h3>\n<p>\u5728\u4f7f\u7528\u5b9a\u6642\u5668\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u554f\u984c\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u5b9a\u6642\u5668\u672a\u89f8\u767c\uff1a<\/strong>\u78ba\u4fdd\u5b9a\u6642\u5668\u88ab\u6b63\u78ba\u6dfb\u52a0\u5230\u904b\u884c\u5faa\u74b0\u4e2d\u3002\u82e5\u4f7f\u7528 <code>repeats<\/code>\uff0c\u8acb\u6aa2\u67e5\u662f\u5426\u6709\u6548\u3002<\/li>\n<li><strong>\u8a18\u61b6\u9ad4\u6cc4\u6f0f\uff1a<\/strong>\u4f7f\u7528 <code>weak<\/code> \u53c3\u8003\u4f86\u907f\u514d\u5faa\u74b0\u5f15\u7528\uff0c\u7279\u5225\u662f\u5728\u9589\u5305\u4e2d\u4f7f\u7528 self \u6642\u3002<\/li>\n<\/ul>\n<h3>\u5ef6\u4f38\u61c9\u7528<\/h3>\n<p>\u5b9a\u6642\u5668\u4e0d\u50c5\u53ef\u4ee5\u7528\u65bc\u7c21\u55ae\u7684\u4efb\u52d9\uff0c\u4f60\u9084\u53ef\u4ee5\u5c07\u5176\u61c9\u7528\u65bc\u66f4\u8907\u96dc\u7684\u5834\u666f\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u88fd\u4f5c\u8a08\u6642\u5668\u61c9\u7528\u7a0b\u5f0f\u3002<\/li>\n<li>\u904a\u6232\u4e2d\u5be6\u73fe\u5012\u8a08\u6642\u6216\u8a08\u6642\u529f\u80fd\u3002<\/li>\n<li>\u5b9a\u671f\u66f4\u65b0 UI \u7684\u6578\u64da\uff0c\u4f8b\u5982\u65b0\u805e\u63a8\u9001\u6216\u793e\u4ea4\u5a92\u9ad4\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2023\/02\/Swift-\u5b9a\u6642\u5668-\ud83d\udd70\ufe0f_1675410114.2594821.webp\" alt=\"Swift \u5b9a\u6642\u5668 \ud83d\udd70\ufe0f\" title=\"Swift \u5b9a\u6642\u5668, Swift Timer, Swift \u5b9a\u6642\u4efb\u52d9, Swift \u5b9a\u6642\u5668\u529f\u80fd, Swift \u5b9a\u6642\u5668\u7528\u6cd5\" width=\"1200\" height=\"628\"\/><\/p>\n<h2>Q&#038;A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<h3>Q1: Swift \u7684 Timer \u985e\u5225\u53ef\u4ee5\u7528\u65bc\u54ea\u4e9b\u5834\u666f\uff1f<\/h3>\n<p>A1: Timer \u985e\u5225\u53ef\u7528\u65bc\u57f7\u884c\u5b9a\u6642\u4efb\u52d9\u3001\u88fd\u4f5c\u5012\u8a08\u6642\u5668\u3001\u5728\u904a\u6232\u4e2d\u5be6\u73fe\u6642\u9593\u9650\u5236\u7b49\u3002<\/p>\n<h3>Q2: \u5982\u4f55\u907f\u514d Timer \u5728\u9589\u5305\u4e2d\u9020\u6210\u7684\u8a18\u61b6\u9ad4\u6cc4\u6f0f\uff1f<\/h3>\n<p>A2: \u4f7f\u7528 <code>weak<\/code> \u53c3\u8003\u4f86\u907f\u514d\u5faa\u74b0\u5f15\u7528\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd Timer \u4e0d\u6703\u6301\u6709\u5b83\u6240\u53c3\u8003\u7684\u5c0d\u8c61\u3002<\/p>\n<h3>Q3: \u5982\u679c Timer \u672a\u89f8\u767c\uff0c\u61c9\u8a72\u5982\u4f55\u6aa2\u67e5\uff1f<\/h3>\n<p>A3: \u78ba\u4fdd Timer \u88ab\u6b63\u78ba\u6dfb\u52a0\u5230\u904b\u884c\u5faa\u74b0\u4e2d\uff0c\u4e26\u6aa2\u67e5\u662f\u5426\u6709\u4efb\u4f55\u689d\u4ef6\u963b\u6b62\u4e86\u5b83\u7684\u57f7\u884c\u3002<\/p>\n<p>&#8212;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981(Description):\u5b78\u7fd2Swift\u4e2d\u7684\u5b9a\u6642\u5668\ud83d\udd70\ufe0f\uff0c\u53ef\u4ee5\u8b93\u4f60\u5728\u6307\u5b9a\u7684\u6642\u9593\u57f7\u884c\u7279\u5b9a\u7684\u4efb\u52d9\uff0c\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528Swift\u4e2d\u7684\u5b9a\u6642\u5668\ud83d\udd70\ufe0f\uff0c\u4ee5\u53ca\u5b83\u7684\u529f\u80fd\u548c\u7528\u6cd5\u3002<\/p>\n","protected":false},"author":1,"featured_media":7287,"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-7290","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-\u5b9a\u6642\u5668-\ud83d\udd70\ufe0f_1675410114.2594821.webp","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1TA","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/7290","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=7290"}],"version-history":[{"count":0,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/7290\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/7287"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=7290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=7290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=7290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}