{"id":6942,"date":"2025-06-04T14:09:09","date_gmt":"2025-06-05T06:09:08","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=6942"},"modified":"2025-06-05T14:09:09","modified_gmt":"2025-06-05T06:09:08","slug":"https-badgameshow-com-steven-147","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/https-badgameshow-com-steven-147\/","title":{"rendered":"Swift UISlider \u63a7\u5236\u5668\u4f7f\u7528\u6307\u5357 &#8211; 2025 \u6700\u65b0\u6ed1\u52d5\u63a7\u5236\u5668\u6559\u5b78"},"content":{"rendered":"<p>&#8220;`html<br \/>\n<meta name=\"keywords\" content=\"swift, UISlider, \u6ed1\u52d5\u63a7\u5236\u5668, iOS \u958b\u767c, Swift \u7a0b\u5f0f\u6559\u5b78\"><\/p>\n<h1>Swift UISlider \u63a7\u5236\u5668\u4f7f\u7528\u6307\u5357 &#8211; 2025 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decoding=\"async\" src=\"https:\/\/i.imgur.com\/XVX6X3U.png\" alt=\"UISlider\u63a7\u5236\u5668\u5728Storyboard\u4e2d\u7684\u4f4d\u7f6e\" 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class=\"language-swift line-numbers\">class ViewController: UIViewController {\n    @IBOutlet weak var slider: UISlider!\n    ...\n}\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u5728<strong>viewDidLoad<\/strong>\u65b9\u6cd5\u4e2d\u8a2d\u5b9aUISlider\u63a7\u5236\u5668\u7684\u5c6c\u6027\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">override func viewDidLoad() {\n    super.viewDidLoad()\n    \/\/ \u8a2d\u5b9aUISlider\u7684\u6700\u5c0f\u503c\n    slider.minimumValue = 0.0\n    \/\/ \u8a2d\u5b9aUISlider\u7684\u6700\u5927\u503c\n    slider.maximumValue = 100.0\n    \/\/ \u8a2d\u5b9aUISlider\u7684\u7576\u524d\u503c\n    slider.value = 50.0\n    \/\/ \u8a2d\u5b9aUISlider\u7684\u6700\u5c0f\u503c\u5716\u7247\n    slider.minimumValueImage = UIImage(named: \"min\")\n    \/\/ \u8a2d\u5b9aUISlider\u7684\u6700\u5927\u503c\u5716\u7247\n    slider.maximumValueImage = UIImage(named: \"max\")\n    \/\/ \u8a2d\u5b9aUISlider\u7684\u4e8b\u4ef6\u8655\u7406\u5c0d\u8c61\n    slider.addTarget(self, action: #selector(sliderValueChanged(_:)), for: .valueChanged)\n}\n<\/code><\/pre>\n<p>\u63a5\u8457\uff0c\u6211\u5011\u9700\u8981\u5be6\u4f5c<strong>sliderValueChanged<\/strong>\u65b9\u6cd5\u4f86\u8655\u7406UISlider\u63a7\u5236\u5668\u7684\u6ed1\u52d5\u4e8b\u4ef6\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">@objc func sliderValueChanged(_ sender: UISlider) {\n    \/\/ \u53d6\u5f97UISlider\u7684\u7576\u524d\u503c\n    let value = sender.value\n    \/\/ \u5c07\u7576\u524d\u503c\u986f\u793a\u5728Console\u4e2d\n    print(\"Slider value: \\(value)\")\n}\n<\/code><\/pre>\n<p>\u73fe\u5728\u6211\u5011\u5df2\u7d93\u5b8c\u6210\u4e86UISlider\u63a7\u5236\u5668\u7684\u8a2d\u5b9a\uff0c\u57f7\u884c\u7a0b\u5f0f\u5f8c\uff0c\u6ed1\u52d5UISlider\u63a7\u5236\u5668\u6642\uff0c\u5c31\u6703\u5728Console\u4e2d\u770b\u5230\u7576\u524d\u503c\uff0c\u5982\u4e0b\u5716\u6240\u793a\uff1a<\/p>\n<p><img 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title=\"UISlider\u63a7\u5236\u5668\u7684\u6ed1\u52d5\u6548\u679c\"><\/p>\n<h2>\u5e38\u898b\u554f\u984c\u89e3\u7b54<\/h2>\n<h3>Q1\uff1a\u5982\u4f55\u5728UISlider\u4e2d\u986f\u793a\u6a19\u7c64\u4f86\u986f\u793a\u7576\u524d\u503c\uff1f<\/h3>\n<p>\u60a8\u53ef\u4ee5\u5728UISlider\u65c1\u908a\u6dfb\u52a0\u4e00\u500bUILabel\uff0c\u4e26\u5728<code>sliderValueChanged<\/code>\u65b9\u6cd5\u4e2d\u66f4\u65b0UILabel\u7684\u6587\u5b57\u4f86\u986f\u793a\u7576\u524d\u503c\u3002<\/p>\n<h3>Q2\uff1aUISlider\u7684\u6ed1\u52d5\u7bc4\u570d\u53ef\u4ee5\u8a2d\u7f6e\u70ba\u8ca0\u503c\u55ce\uff1f<\/h3>\n<p>\u662f\u7684\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u8a2d\u7f6e<code>minimumValue<\/code>\u70ba\u8ca0\u6578\u4f86\u5be6\u73fe\u6b64\u529f\u80fd\uff0c\u9019\u6a23\u4f7f\u7528\u8005\u53ef\u4ee5\u6ed1\u52d5\u5230\u8ca0\u503c\u7bc4\u570d\u3002<\/p>\n<h3>Q3\uff1aUISlider\u7684\u5716\u7247\u8cc7\u6e90\u5982\u4f55\u8a2d\u7f6e\uff1f<\/h3>\n<p>\u60a8\u9700\u8981\u5c07\u5716\u7247\u8cc7\u6e90\u6dfb\u52a0\u5230\u5c08\u6848\u4e2d\uff0c\u7136\u5f8c\u4f7f\u7528<code>UIImage(named: 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