{"id":6912,"date":"2025-06-02T13:17:12","date_gmt":"2025-06-05T05:52:12","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=6912"},"modified":"2025-06-05T13:17:12","modified_gmt":"2025-06-05T05:52:12","slug":"https-badgameshow-com-steven-132","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/https-badgameshow-com-steven-132\/","title":{"rendered":"2025 \u6700\u65b0 Swift \u5f71\u50cf\u7de8\u8f2f\u5668\u6559\u5b78\uff1a\u5be6\u73fe\u5168\u529f\u80fd\u5f71\u50cf\u7de8\u8f2f"},"content":{"rendered":"<p>&#8220;`html<br \/>\n<meta name=\"keywords\" content=\"swift, \u5f71\u50cf\u7de8\u8f2f\u5668, \u5f71\u50cf\u7de8\u8f2f, \u5f71\u50cf\u529f\u80fd\"><\/p>\n<h1>2025 \u6700\u65b0 Swift \u5f71\u50cf\u7de8\u8f2f\u5668\u6559\u5b78\uff1a\u5be6\u73fe\u5168\u529f\u80fd\u5f71\u50cf\u7de8\u8f2f<\/h1>\n<p>Swift \u662f\u4e00\u7a2e\u5feb\u901f\u3001\u5b89\u5168\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u5ee3\u6cdb\u7528\u65bc\u958b\u767c iOS\u3001macOS\u3001watchOS 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\u5e73\u53f0\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u3002<\/p>\n<p>\u5b89\u88dd\u5b8c Xcode \u5f8c\uff0c\u53ef\u4ee5\u958b\u59cb\u7de8\u5beb\u5f71\u50cf\u7de8\u8f2f\u5668\u7684\u7a0b\u5f0f\u78bc\u3002\u9996\u5148\u5b9a\u7fa9\u4e00\u500b <code>UIImage<\/code> \u7269\u4ef6\uff0c\u9019\u500b\u7269\u4ef6\u5c07\u7528\u4f86\u5b58\u5132\u9700\u8981\u7de8\u8f2f\u7684\u5f71\u50cf\uff1a<\/p>\n<pre><code>let image = UIImage(named: \"image.jpg\")\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u5be6\u4f5c\u5404\u7a2e\u5f71\u50cf\u7de8\u8f2f\u529f\u80fd\uff1a<\/p>\n<h3>\u88c1\u526a\u5f71\u50cf<\/h3>\n<p>\u4f7f\u7528\u81ea\u5b9a\u7fa9\u7684\u88c1\u526a\u65b9\u6cd5\u4f86\u88c1\u526a\u5f71\u50cf\uff1a<\/p>\n<pre><code>extension UIImage {\n    func crop(rect: CGRect) -> UIImage? {\n        guard let cgImage = self.cgImage?.cropping(to: rect) else { return nil }\n        return UIImage(cgImage: cgImage)\n    }\n}\nlet croppedImage = image.crop(rect: CGRect(x: 0, y: 0, width: 100, height: 100))\n<\/code><\/pre>\n<h3>\u65cb\u8f49\u5f71\u50cf<\/h3>\n<p>\u4f7f\u7528\u81ea\u5b9a\u7fa9\u7684\u65cb\u8f49\u65b9\u6cd5\u4f86\u65cb\u8f49\u5f71\u50cf\uff1a<\/p>\n<pre><code>extension UIImage {\n    func rotate(degrees: CGFloat) -> UIImage? {\n        var newSize = self.size\n        var rendererFormat = UIGraphicsImageRendererFormat()\n        rendererFormat.scale = 1.0\n        \n        if degrees.truncatingRemainder(dividingBy: 180) != 0 {\n            newSize = CGSize(width: self.size.height, height: self.size.width)\n        }\n        \n        return UIGraphicsImageRenderer(size: newSize, format: rendererFormat).image { _ in\n            let context = UIGraphicsGetCurrentContext()\n            context?.translateBy(x: newSize.width \/ 2, y: newSize.height \/ 2)\n            context?.rotate(by: degrees * .pi \/ 180)\n            context?.translateBy(x: -self.size.width \/ 2, y: -self.size.height \/ 2)\n            self.draw(in: CGRect(origin: .zero, size: self.size))\n        }\n    }\n}\nlet rotatedImage = image.rotate(degrees: 90)\n<\/code><\/pre>\n<h3>\u7e2e\u653e\u5f71\u50cf<\/h3>\n<p>\u4f7f\u7528\u81ea\u5b9a\u7fa9\u7684\u7e2e\u653e\u65b9\u6cd5\u4f86\u4fee\u6539\u5f71\u50cf\u5927\u5c0f\uff1a<\/p>\n<pre><code>extension UIImage {\n    func resize(size: CGSize) -> UIImage? {\n        return UIGraphicsImageRenderer(size: size).image { _ in\n            self.draw(in: CGRect(origin: .zero, size: size))\n        }\n    }\n}\nlet resizedImage = image.resize(size: CGSize(width: 200, height: 200))\n<\/code><\/pre>\n<h3>\u61c9\u7528\u6ffe\u93e1<\/h3>\n<p>\u4f7f\u7528\u81ea\u5b9a\u7fa9\u7684\u6ffe\u93e1\u65b9\u6cd5\u4f86\u6539\u8b8a\u5f71\u50cf\u5916\u89c0\uff1a<\/p>\n<pre><code>extension UIImage {\n    func applyFilter(filter: CIFilter) -> UIImage? {\n        guard let ciImage = CIImage(image: self) else { return nil }\n        filter.setValue(ciImage, forKey: kCIInputImageKey)\n        guard let outputImage = filter.outputImage else { return nil }\n        return UIImage(ciImage: outputImage)\n    }\n}\nlet filteredImage = image.applyFilter(filter: CIFilter(name: \"CISepiaTone\")!)\n<\/code><\/pre>\n<h3>\u6dfb\u52a0\u6587\u5b57<\/h3>\n<p>\u4f7f\u7528\u81ea\u5b9a\u7fa9\u7684\u6dfb\u52a0\u6587\u5b57\u65b9\u6cd5\u4f86\u5728\u5f71\u50cf\u4e0a\u6dfb\u52a0\u6587\u5b57\uff1a<\/p>\n<pre><code>extension UIImage {\n    func addText(text: String) -> UIImage {\n        let renderer = UIGraphicsImageRenderer(size: self.size)\n        return renderer.image { _ in\n            self.draw(at: CGPoint.zero)\n            let attributes: [NSAttributedString.Key: Any] = [\n                .font: UIFont.systemFont(ofSize: 40),\n                .foregroundColor: UIColor.white\n            ]\n            text.draw(at: CGPoint(x: 20, y: 20), withAttributes: attributes)\n        }\n    }\n}\nlet textImage = image.addText(text: \"Hello World!\")\n<\/code><\/pre>\n<p>\u4ee5\u4e0a\u5373\u70ba\u4f7f\u7528 Swift 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