处理 二维码密度

galaxy/galaxy/Classes/Modules/Home(首页)/InvitationWithGifts(邀请有礼)/C/YHInvatationShareViewController.swift

@@ -179,26 +179,6 @@ extension YHInvatationShareViewController {
 
     }
     
-    func generateQRCode(from string: String) -> UIImage? {
-        guard let data = string.data(using: .ascii, allowLossyConversion: false) else {
-            return nil
-        }
-
-        let filter = CIFilter(name: "CIQRCodeGenerator")
-        filter?.setValue(data, forKey: "inputMessage")
-
-        guard let outputImage = filter?.outputImage else {
-            return nil
-        }
-
-        let context = CIContext()
-        if let cgImage = context.createCGImage(outputImage, from: outputImage.extent) {
-            return UIImage(cgImage: cgImage)
-        }
-
-        return nil
-    }
-    
     func combinedImageFrom(imageView: UIImageView) -> UIImage? {
         UIGraphicsBeginImageContextWithOptions(imageView.bounds.size, false, 0.0)
         // 首先绘制 imageView 的内容
@@ -307,26 +287,6 @@ class YHShareOneCollectionViewCell: UICollectionViewCell {
             imageView.image = qrCode
         }
     }
-    
-//    func generateQRCode(from string: String) -> UIImage? {
-//        guard let data = string.data(using: .ascii, allowLossyConversion: false) else {
-//            return nil
-//        }
-//
-//        let filter = CIFilter(name: "CIQRCodeGenerator")
-//        filter?.setValue(data, forKey: "inputMessage")
-//
-//        guard let outputImage = filter?.outputImage else {
-//            return nil
-//        }
-//
-//        let context = CIContext()
-//        if let cgImage = context.createCGImage(outputImage, from: outputImage.extent) {
-//            return UIImage(cgImage: cgImage)
-//        }
-//
-//        return nil
-//    }
 }
 
 class YHShareTwoCollectionViewCell: UICollectionViewCell {
@@ -380,29 +340,11 @@ class YHShareTwoCollectionViewCell: UICollectionViewCell {
             make.width.height.equalTo(20)
         }
         
-        if let qrCode = generateQRCode(from: YHBaseUrlManager.shared.curH5URL() + "superAppBridge.html#/evaluation?channel=lkhtj-app&customer_id=\(YHLoginManager.shared.userModel?.id ?? "")&scene_id=30") {
+        
+        let qrString = YHBaseUrlManager.shared.curH5URL() + "superAppBridge.html#/evaluation?channel=lkhtj-app&customer_id=\(YHLoginManager.shared.userModel?.id ?? "")&scene_id=30"
+        if let qrCode = qrString.generateQRCode() {
             // 可以将qrCode设置为UIImageView的image属性来显示二维码
             imageView.image = qrCode
         }
     }
-    
-    func generateQRCode(from string: String) -> UIImage? {
-        guard let data = string.data(using: .ascii, allowLossyConversion: false) else {
-            return nil
-        }
-
-        let filter = CIFilter(name: "CIQRCodeGenerator")
-        filter?.setValue(data, forKey: "inputMessage")
-
-        guard let outputImage = filter?.outputImage else {
-            return nil
-        }
-
-        let context = CIContext()
-        if let cgImage = context.createCGImage(outputImage, from: outputImage.extent) {
-            return UIImage(cgImage: cgImage)
-        }
-
-        return nil
-    }
 }

galaxy/galaxy/Classes/Modules/IntelligentService(服务中心)/CustomerService/Certificate(办证段)/VisaPayment(4电子签字缴费)/V/YHVisaPayTypeCell.swift

@@ -100,16 +100,8 @@ private extension YHVisaPayTypeCell {
         // 确保应用有权访问相册
         PHPhotoLibrary.requestAuthorization { status in
             if status == .authorized {
-                // 保存图片到相册
                 // 保存UIImage对象到相册
                 UIImageWriteToSavedPhotosAlbum(image, self, #selector(self.image(_:didFinishSavingWithError:contextInfo:)), nil)
-//
-////                DispatchQueue.main.async {
-////                    YHHUD.flash(message: "保存成功")
-////                }
-//                
-//                
-//                UIImageWriteToSavedPhotosAlbum(
             } else {
                 YHHUD.flash(message: "保存失败，请检查系统权限")
             }

galaxy/galaxy/Classes/Tools/Extention/String+Extension.swift

@@ -260,23 +260,24 @@ extension String {
     
     ///字符串 生成二维码
     func generateQRCode() -> UIImage? {
-        guard let data = self.data(using: .ascii, allowLossyConversion: false) else {
-            return nil
-        }
-
-        let filter = CIFilter(name: "CIQRCodeGenerator")
-        filter?.setValue(data, forKey: "inputMessage")
-
-        guard let outputImage = filter?.outputImage else {
-            return nil
-        }
-
-        let context = CIContext()
-        if let cgImage = context.createCGImage(outputImage, from: outputImage.extent) {
-            return UIImage(cgImage: cgImage)
-        }
-
-        return nil
+        //方法一
+//        guard let data = self.data(using: .ascii, allowLossyConversion: false) else {
+//            return nil
+//        }
+//
+//        let filter = CIFilter(name: "CIQRCodeGenerator")
+//        filter?.setValue(data, forKey: "inputMessage")
+//
+//        guard let outputImage = filter?.outputImage else {
+//            return nil
+//        }
+//
+//        let context = CIContext()
+//        if let cgImage = context.createCGImage(outputImage, from: outputImage.extent) {
+//            return UIImage(cgImage: cgImage)
+//        }
+//
+//        return nil
         
         
         //方法二  保存图片的时候有问题
@@ -295,5 +296,24 @@ extension String {
 //        let qrCodeImage = UIImage(ciImage: transformedImage)
 //        
 //        return qrCodeImage
+        
+        
+        //方法三
+        let data = self.data(using: String.Encoding.ascii)
+        if let filter = CIFilter(name: "CIQRCodeGenerator") {
+            filter.setValue(data, forKey: "inputMessage")
+            filter.setValue("H", forKey: "inputCorrectionLevel")
+            
+            if let output = filter.outputImage {
+                let scale = 10.0 // 可以调整这个值来改变二维码的分辨率
+                let transformedImage = output.transformed(by: CGAffineTransform(scaleX: scale, y: scale))
+                
+                let context = CIContext(options: nil)
+                if let cgImage = context.createCGImage(transformedImage, from: transformedImage.extent) {
+                    return UIImage(cgImage: cgImage)
+                }
+            }
+        }
+        return nil
     }
 }