{"id":4021,"date":"2025-06-04T11:09:25","date_gmt":"2025-06-05T03:58:25","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4021"},"modified":"2025-06-05T11:09:25","modified_gmt":"2025-06-05T03:58:25","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%e6%ad%a5%e8%bf%9b%e5%99%a8","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%e6%ad%a5%e8%bf%9b%e5%99%a8\/","title":{"rendered":"\u638c\u63e1 Swift UIStepper\uff1a2025 \u6700\u65b0\u6b65\u9a5f\u8207\u6700\u4f73\u5be6\u8e10"},"content":{"rendered":"

<\/p>\n

\u638c\u63e1 Swift UIStepper\uff1a2025 \u6700\u65b0\u6b65\u9a5f\u8207\u6700\u4f73\u5be6\u8e10<\/h1>\n

\u5728Swift\u4e2d\uff0cUIStepper\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u548c\u8abf\u6574\u6578\u503c\u7684\u754c\u9762\u63a7\u4ef6\uff0c\u65b9\u4fbf\u7528\u6236\u8f15\u9b06\u589e\u52a0\u6216\u6e1b\u5c11\u6578\u503c\u3002UIStepper\u985e\u662fSwift\u4e2d\u5be6\u73fe\u6b64\u529f\u80fd\u7684\u6838\u5fc3\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u6b65\u9032\u5668\u7684\u6700\u5c0f\u503c\u3001\u6700\u5927\u503c\u3001\u6b65\u9577\u503c\u548c\u7576\u524d\u503c\uff0c\u4e26\u4e14\u80fd\u5920\u6dfb\u52a0\u4e8b\u4ef6\u8655\u7406\u65b9\u6cd5\u4ee5\u97ff\u61c9\u7528\u6236\u7684\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39\u5982\u4f55\u6709\u6548\u4f7f\u7528UIStepper\u985e\u4f86\u5be6\u73fe\u6b65\u9032\u5668\uff0c\u4e26\u63d0\u4f9b\u5be6\u4f5c\u7bc4\u4f8b\u53ca\u932f\u8aa4\u6392\u9664\u5efa\u8b70\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528 UIStepper \u985e\u5be6\u73fe\u6b65\u9032\u5668<\/h2>\n

\u8981\u4f7f\u7528UIStepper\u985e\u4f86\u5be6\u73fe\u6b65\u9032\u5668\uff0c\u9996\u5148\u9700\u8981\u5275\u5efa\u4e00\u500bUIStepper\u5c0d\u8c61\u4e26\u5c07\u5176\u6dfb\u52a0\u5230\u8996\u5716\u4e2d\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n

“`swift
\nlet stepper = UIStepper()
\nstepper.translatesAutoresizingMaskIntoConstraints = false \/\/ \u78ba\u4fdd\u81ea\u52d5\u4f48\u5c40\u6b63\u5e38\u5de5\u4f5c
\nview.addSubview(stepper)<\/p>\n

\/\/ \u8a2d\u7f6e\u6b65\u9032\u5668\u7684\u7d04\u675f
\nNSLayoutConstraint.activate([
\n stepper.centerXAnchor.constraint(equalTo: view.centerXAnchor),
\n stepper.centerYAnchor.constraint(equalTo: view.centerYAnchor)
\n])
\n“`<\/p>\n

\u63a5\u4e0b\u4f86\uff0c\u53ef\u4ee5\u4f7f\u7528UIStepper\u985e\u7684\u5c6c\u6027\u4f86\u8a2d\u7f6e\u6b65\u9032\u5668\u7684\u6700\u5c0f\u503c\u3001\u6700\u5927\u503c\u3001\u6b65\u9577\u503c\u548c\u7576\u524d\u503c\uff1a<\/p>\n

“`swift
\nstepper.minimumValue = 0
\nstepper.maximumValue = 10
\nstepper.stepValue = 1
\nstepper.value = 0 \/\/ \u521d\u59cb\u503c
\n“`<\/p>\n

\u6700\u5f8c\uff0c\u53ef\u4ee5\u70ba\u6b65\u9032\u5668\u6dfb\u52a0\u4e8b\u4ef6\u8655\u7406\u65b9\u6cd5\uff0c\u4ee5\u4fbf\u5728\u7528\u6236\u66f4\u6539\u6b65\u9032\u5668\u7684\u503c\u6642\u57f7\u884c\u7279\u5b9a\u64cd\u4f5c\uff1a<\/p>\n

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

\u5728\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u70ba\u6b65\u9032\u5668\u6dfb\u52a0\u4e86\u4e00\u500b\u4e8b\u4ef6\u8655\u7406\u65b9\u6cd5\uff0c\u7576\u7528\u6236\u66f4\u6539\u6b65\u9032\u5668\u7684\u503c\u6642\uff0c\u8a72\u65b9\u6cd5\u5c07\u88ab\u8abf\u7528\uff1a<\/p>\n

“`swift
\n@objc func handleStepperValueChanged(_ sender: UIStepper) {
\n print(“Stepper value changed: \\(sender.value)”)
\n \/\/ \u6b64\u8655\u53ef\u4ee5\u66f4\u65b0UI\u6216\u57f7\u884c\u5176\u4ed6\u64cd\u4f5c
\n}
\n“`<\/p>\n

\u9019\u6a23\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528UIStepper\u985e\u5be6\u73fe\u6b65\u9032\u5668\uff0c\u4e26\u91dd\u5c0d\u4e0d\u540c\u7684\u9700\u6c42\u9032\u884c\u8a2d\u7f6e\u3002<\/p>\n

\u932f\u8aa4\u6392\u9664\u53ca\u6700\u4f73\u5be6\u8e10<\/h2>\n

\u5728\u4f7f\u7528UIStepper\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u5e38\u898b\u554f\u984c\uff1a<\/p>\n

1. **\u6b65\u9032\u5668\u4e0d\u986f\u793a**\uff1a\u78ba\u4fdd\u5df2\u5c07UIStepper\u6dfb\u52a0\u5230\u8996\u5716\u4e26\u8a2d\u7f6e\u5176\u7d04\u675f\u3002
\n2. **\u4e8b\u4ef6\u4e0d\u89f8\u767c**\uff1a\u6aa2\u67e5\u662f\u5426\u6b63\u78ba\u8a2d\u7f6e\u4e86`addTarget`\u65b9\u6cd5\uff0c\u4e26\u78ba\u4fdd\u65b9\u6cd5\u540d\u7a31\u8207\u9078\u64c7\u5668\u4e00\u81f4\u3002<\/p>\n

\u6700\u4f73\u5be6\u8e10\u5efa\u8b70\uff1a
\n– \u78ba\u4fdd\u6b65\u9032\u5668\u7684\u521d\u59cb\u503c\u5728\u8a2d\u5b9a\u7684\u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\u4e4b\u9593\u3002
\n– \u6839\u64da\u61c9\u7528\u9700\u6c42\u9069\u7576\u8abf\u6574\u6b65\u9577\u503c\uff0c\u4ee5\u63d0\u9ad8\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n

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

UIStepper\u4e0d\u50c5\u53ef\u4ee5\u7528\u65bc\u57fa\u672c\u6578\u503c\u8abf\u6574\uff0c\u9084\u53ef\u4ee5\u8207\u5176\u4ed6UI\u5143\u7d20\u7d50\u5408\u4f7f\u7528\uff0c\u5982UILabel\u6216UITextField\uff0c\u4f86\u5be6\u73fe\u5373\u6642\u6578\u503c\u986f\u793a\u3002\u7528\u6236\u5728\u8abf\u6574\u6b65\u9032\u5668\u7684\u540c\u6642\uff0c\u754c\u9762\u4e0a\u7684\u6578\u503c\u4e5f\u80fd\u96a8\u4e4b\u66f4\u65b0\uff0c\u63d0\u4f9b\u66f4\u597d\u7684\u4e92\u52d5\u6548\u679c\u3002<\/p>\n

\u7d50\u8ad6<\/h2>\n

\u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528UIStepper\u985e\u5be6\u73fe\u6b65\u9032\u5668\uff0c\u4e26\u8aaa\u660e\u4e86\u8a2d\u7f6e\u6700\u5c0f\u503c\u3001\u6700\u5927\u503c\u3001\u6b65\u9577\u503c\u53ca\u7576\u524d\u503c\u7684\u65b9\u6cd5\uff0c\u9084\u63d0\u4f9b\u4e86\u4e8b\u4ef6\u8655\u7406\u548c\u932f\u8aa4\u6392\u9664\u5efa\u8b70\u3002\u904b\u7528\u9019\u4e9b\u6280\u5de7\uff0c\u60a8\u5c07\u80fd\u5920\u5728Swift\u61c9\u7528\u4e2d\u8f15\u9b06\u5be6\u73fe\u529f\u80fd\u5f37\u5927\u7684\u6b65\u9032\u5668\u3002<\/p>\n

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

1. UIStepper\u53ef\u4ee5\u8a2d\u7f6e\u54ea\u4e9b\u5c6c\u6027\uff1f<\/h3>\n

\u7b54\uff1aUIStepper\u53ef\u4ee5\u8a2d\u7f6e\u6700\u5c0f\u503c\u3001\u6700\u5927\u503c\u3001\u6b65\u9577\u503c\u53ca\u7576\u524d\u503c\u7b49\u5c6c\u6027\u3002<\/p>\n

2. UIStepper\u7684\u4e8b\u4ef6\u8655\u7406\u65b9\u6cd5\u5982\u4f55\u5be6\u73fe\uff1f<\/h3>\n

\u7b54\uff1a\u53ef\u4ee5\u4f7f\u7528`addTarget`\u65b9\u6cd5\u4f86\u8a2d\u7f6e\u4e8b\u4ef6\u8655\u7406\uff0c\u4e26\u4f7f\u7528`@objc`\u6a19\u8a18\u76f8\u61c9\u7684\u65b9\u6cd5\u3002<\/p>\n

3. UIStepper\u7684\u6700\u4f73\u5be6\u8e10\u662f\u4ec0\u9ebc\uff1f<\/h3>\n

\u7b54\uff1a\u78ba\u4fdd\u521d\u59cb\u503c\u5728\u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\u4e4b\u9593\uff0c\u4e26\u6839\u64da\u9700\u6c42\u8abf\u6574\u6b65\u9577\u503c\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\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\u6b65\u8fdb\u5668\uff0c\u5305\u62ec\u5982\u4f55\u4f7f\u7528UIStepper\u7c7b\u4f86\u5be6\u73fe\u6b65\u8fdb\u5668\u3001\u5982\u4f55\u8a2d\u7f6e\u6b65\u8fdb\u5668\u7684\u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\u3001\u5982\u4f55\u8a2d\u7f6e\u6b65\u8fdb\u5668\u7684\u6b65\u9577\u503c\u3001\u5982\u4f55\u8a2d\u7f6e\u6b65\u8fdb\u5668\u7684\u7576\u524d\u503c\u3001\u5982\u4f55\u70ba\u6b65\u8fdb\u5668\u6dfb\u52a0\u4e8b\u4ef6\u8655\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-4021","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\/pcFK27-12R","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4021","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=4021"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4021\/revisions"}],"predecessor-version":[{"id":4022,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4021\/revisions\/4022"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4021"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}