{"id":3977,"date":"2025-06-04T11:10:14","date_gmt":"2025-06-05T03:52:13","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3977"},"modified":"2025-06-05T11:10:14","modified_gmt":"2025-06-05T03:52:13","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8swift%e4%b8%ad%e7%9a%84%e5%bc%80%e5%85%b3","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8swift%e4%b8%ad%e7%9a%84%e5%bc%80%e5%85%b3\/","title":{"rendered":"\u638c\u63e1 Swift \u4e2d UISwitch \u63a7\u4ef6\uff1a2025 \u6700\u65b0\u6559\u5b78\u8207\u6700\u4f73\u5be6\u8e10"},"content":{"rendered":"

<\/p>\n

\u638c\u63e1 Swift \u4e2d UISwitch \u63a7\u4ef6<\/h1>\n

Swift \u662f\u4e00\u7a2e\u529f\u80fd\u5f37\u5927\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc iOS \u61c9\u7528\u7a0b\u5e8f\u7684\u958b\u767c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528 Swift \u4e2d\u7684 UISwitch \u63a7\u4ef6\u4f86\u5275\u5efa\u958b\u95dc\uff0c\u9019\u662f\u63a7\u5236\u61c9\u7528\u7a0b\u5e8f\u529f\u80fd\u7684\u4e00\u500b\u91cd\u8981\u5de5\u5177\u3002\u7121\u8ad6\u662f\u8a2d\u7f6e\u958b\u95dc\u7684\u72c0\u614b\u3001\u7372\u53d6\u7576\u524d\u72c0\u614b\uff0c\u9084\u662f\u70ba\u958b\u95dc\u6dfb\u52a0\u4e8b\u4ef6\u8655\u7406\uff0c\u9019\u88e1\u90fd\u5c07\u63d0\u4f9b\u6700\u65b0\u7684\u8a9e\u6cd5\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n

\u4f7f\u7528 UISwitch \u985e\u5be6\u73fe\u958b\u95dc<\/h2>\n

UISwitch \u985e\u662f Swift \u4e2d\u7528\u65bc\u5be6\u73fe\u958b\u95dc\u7684\u63a7\u4ef6\uff0c\u80fd\u5920\u6709\u6548\u63a7\u5236\u61c9\u7528\u7a0b\u5e8f\u7684\u67d0\u4e9b\u529f\u80fd\u3002\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5728 Interface Builder \u4e2d\u5c07 UISwitch \u63a7\u4ef6\u62d6\u653e\u5230\u60a8\u7684\u8996\u5716\u4e2d\uff0c\u7136\u5f8c\u5c07\u5176\u9023\u63a5\u5230 ViewController \u985e\u4e2d\u7684\u8b8a\u6578\u3002\u4ee5\u4e0b\u662f\u9023\u63a5\u7684\u7bc4\u4f8b\u4ee3\u78bc\uff1a<\/p>\n

“`swift
\n@IBOutlet weak var switchControl: UISwitch!
\n“`<\/p>\n

\u9019\u6a23\uff0c\u6211\u5011\u5c31\u53ef\u4ee5\u5728\u4ee3\u78bc\u4e2d\u5f15\u7528\u9019\u500b\u958b\u95dc\u63a7\u4ef6\uff0c\u9032\u4e00\u6b65\u64cd\u63a7\u5b83\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n

\u8a2d\u7f6e\u958b\u95dc\u7684\u958b\u555f\u548c\u95dc\u9589\u72c0\u614b<\/h2>\n

\u8981\u8a2d\u7f6e UISwitch \u7684\u72c0\u614b\uff0c\u53ef\u4ee5\u4f7f\u7528 `setOn(_:animated:)` \u65b9\u6cd5\u3002\u8a72\u65b9\u6cd5\u63a5\u53d7\u5169\u500b\u53c3\u6578\uff1a\u7b2c\u4e00\u500b\u662f\u5e03\u6797\u503c\uff0c\u6307\u5b9a\u958b\u95dc\u7684\u72c0\u614b\uff1b\u7b2c\u4e8c\u500b\u5e03\u6797\u503c\u6c7a\u5b9a\u662f\u5426\u4f7f\u7528\u52d5\u756b\u6548\u679c\u3002\u4ee5\u4e0b\u662f\u5c07\u958b\u95dc\u8a2d\u7f6e\u70ba\u958b\u555f\u72c0\u614b\u7684\u4ee3\u78bc\u793a\u4f8b\uff1a<\/p>\n

“`swift
\nswitchControl.setOn(true, animated: true)
\n“`<\/p>\n

\u9019\u6a23\uff0c\u958b\u95dc\u5c07\u5e73\u6ed1\u5730\u8f49\u8b8a\u5230\u958b\u555f\u72c0\u614b\u3002<\/p>\n

\u7372\u53d6\u958b\u95dc\u7684\u7576\u524d\u72c0\u614b<\/h2>\n

\u8981\u6aa2\u67e5 UISwitch \u7684\u7576\u524d\u72c0\u614b\uff0c\u53ef\u4ee5\u4f7f\u7528 `isOn` \u5c6c\u6027\u3002\u9019\u662f\u4e00\u500b\u5e03\u6797\u503c\uff0c\u82e5\u958b\u95dc\u8655\u65bc\u958b\u555f\u72c0\u614b\u5247\u8fd4\u56de `true`\uff0c\u5426\u5247\u8fd4\u56de `false`\u3002\u4ee5\u4e0b\u662f\u76f8\u95dc\u7684\u4ee3\u78bc\u793a\u4f8b\uff1a<\/p>\n

“`swift
\nif switchControl.isOn {
\n \/\/ \u958b\u95dc\u8655\u65bc\u958b\u555f\u72c0\u614b
\n} else {
\n \/\/ \u958b\u95dc\u8655\u65bc\u95dc\u9589\u72c0\u614b
\n}
\n“`<\/p>\n

\u9019\u7a2e\u65b9\u5f0f\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u6839\u64da\u958b\u95dc\u7684\u72c0\u614b\u57f7\u884c\u4e0d\u540c\u7684\u908f\u8f2f\u3002<\/p>\n

\u70ba\u958b\u95dc\u6dfb\u52a0\u4e8b\u4ef6\u8655\u7406\u65b9\u6cd5<\/h2>\n

\u70ba\u4e86\u97ff\u61c9\u958b\u95dc\u72c0\u614b\u7684\u8b8a\u5316\uff0c\u53ef\u4ee5\u4f7f\u7528 `addTarget(_:action:for:)` \u65b9\u6cd5\u4f86\u6dfb\u52a0\u4e8b\u4ef6\u8655\u7406\u65b9\u6cd5\u3002\u6b64\u65b9\u6cd5\u63a5\u53d7\u4e09\u500b\u53c3\u6578\uff1a\u76ee\u6a19\u5c0d\u8c61\u3001\u9078\u64c7\u5668\u548c\u4e8b\u4ef6\u985e\u578b\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u70ba UISwitch \u6dfb\u52a0\u4e8b\u4ef6\u8655\u7406\u7684\u793a\u4f8b\uff1a<\/p>\n

“`swift
\nswitchControl.addTarget(self, action: #selector(switchValueChanged(_:)), for: .valueChanged)
\n“`<\/p>\n

\u5728\u4e0a\u9762\u7684\u4ee3\u78bc\u4e2d\uff0c\u7576\u958b\u95dc\u72c0\u614b\u8b8a\u5316\u6642\uff0c\u6703\u8abf\u7528 `switchValueChanged(_:)` \u65b9\u6cd5\u3002\u60a8\u9700\u8981\u5b9a\u7fa9\u9019\u500b\u65b9\u6cd5\u4f86\u8655\u7406\u72c0\u614b\u8b8a\u66f4\u7684\u908f\u8f2f\uff1a<\/p>\n

“`swift
\n@objc func switchValueChanged(_ sender: UISwitch) {
\n if sender.isOn {
\n print(“\u958b\u95dc\u5df2\u958b\u555f”)
\n } else {
\n print(“\u958b\u95dc\u5df2\u95dc\u9589”)
\n }
\n}
\n“`<\/p>\n

\u932f\u8aa4\u6392\u9664\u8207\u6700\u4f73\u5be6\u8e10<\/h2>\n

\u5728\u4f7f\u7528 UISwitch \u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u5e38\u898b\u554f\u984c\uff1a<\/p>\n

1. **\u958b\u95dc\u672a\u6b63\u78ba\u9023\u63a5**\uff1a\u78ba\u4fdd IBOutlet \u9023\u63a5\u6b63\u78ba\uff0c\u4e26\u4e14\u5728\u7a0b\u5f0f\u78bc\u4e2d\u6b63\u78ba\u5f15\u7528\u3002
\n2. **\u4e8b\u4ef6\u672a\u89f8\u767c**\uff1a\u6aa2\u67e5 `addTarget` \u65b9\u6cd5\u7684\u4f7f\u7528\u662f\u5426\u6b63\u78ba\uff0c\u78ba\u4fdd\u4e8b\u4ef6\u985e\u578b\u70ba `.valueChanged`\u3002
\n3. **UI \u66f4\u65b0\u5ef6\u9072**\uff1a\u78ba\u4fdd\u5728\u4e3b\u7dda\u7a0b\u4e2d\u57f7\u884c UI \u66f4\u65b0\u64cd\u4f5c\u3002<\/p>\n

\u7d50\u8ad6<\/h2>\n

\u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u5728 Swift \u4e2d\u4f7f\u7528 UISwitch \u63a7\u4ef6\uff0c\u5305\u62ec\u8a2d\u7f6e\u958b\u95dc\u7684\u72c0\u614b\u3001\u7372\u53d6\u7576\u524d\u72c0\u614b\u548c\u6dfb\u52a0\u4e8b\u4ef6\u8655\u7406\u3002\u901a\u904e\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\uff0c\u60a8\u53ef\u4ee5\u5728 iOS \u61c9\u7528\u4e2d\u66f4\u9748\u6d3b\u5730\u63a7\u5236\u529f\u80fd\uff0c\u63d0\u4f9b\u66f4\u4f73\u7684\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n

\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff08Q&A\uff09<\/h2>\n

**Q1: UISwitch \u5982\u4f55\u5728 SwiftUI \u4e2d\u4f7f\u7528\uff1f**
\nA1: \u5728 SwiftUI \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 `Toggle` \u7d44\u4ef6\u4f86\u5be6\u73fe\u985e\u4f3c\u7684\u529f\u80fd\uff0c\u4e26\u4e14\u53ef\u4ee5\u8f15\u9b06\u5730\u7d81\u5b9a\u5230\u72c0\u614b\u3002<\/p>\n

**Q2: UISwitch \u7684\u6700\u4f73\u5be6\u8e10\u662f\u4ec0\u9ebc\uff1f**
\nA2: \u7576\u4f7f\u7528 UISwitch \u6642\uff0c\u61c9\u8a72\u78ba\u4fdd\u5176\u72c0\u614b\u8207\u61c9\u7528\u7a0b\u5e8f\u7684\u908f\u8f2f\u4fdd\u6301\u4e00\u81f4\uff0c\u4e26\u4e14\u5728\u7528\u6236\u4e92\u52d5\u6642\u63d0\u4f9b\u5373\u6642\u53cd\u994b\u3002<\/p>\n

**Q3: \u5982\u4f55\u5728 UISwitch \u4e2d\u8a2d\u7f6e\u521d\u59cb\u72c0\u614b\uff1f**
\nA3: \u4f60\u53ef\u4ee5\u5728 `viewDidLoad()` \u65b9\u6cd5\u4e2d\u4f7f\u7528 `setOn(_:animated:)` \u65b9\u6cd5\u8a2d\u7f6e UISwitch \u7684\u521d\u59cb\u72c0\u614b\uff0c\u4f8b\u5982 `switchControl.setOn(false, animated: false)`\u3002<\/p>\n

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

\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528Swift\u4e2d\u7684\u5f00\u5173\uff0c\u5305\u62ec\u5982\u4f55\u4f7f\u7528UISwitch\u7c7b\u6765\u5b9e\u73b0\u5f00\u5173\u3001\u5982\u4f55\u8bbe\u7f6e\u5f00\u5173\u7684\u5f00\u542f\u548c\u5173\u95ed\u72b6\u6001\u3001\u5982\u4f55\u83b7\u53d6\u5f00\u5173\u7684\u5f53\u524d\u72b6\u6001\u3001\u5982\u4f55\u4e3a\u5f00\u5173\u6dfb\u52a0\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u7b49\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","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-3977","post","type-post","status-publish","format-standard","hentry","category-ios","category-swift","tag-ios","tag-swift"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-129","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3977","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=3977"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3977\/revisions"}],"predecessor-version":[{"id":3978,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3977\/revisions\/3978"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}