first

MyQrCode.xcodeproj/project.pbxproj

@@ -6,6 +6,11 @@
 	objectVersion = 77;
 	objects = {
 
+/* Begin PBXBuildFile section */
+		5817666F2E54497800C1B687 /* QRCode in Frameworks */ = {isa = PBXBuildFile; productRef = 5817666E2E54497800C1B687 /* QRCode */; };
+		581766772E544AFF00C1B687 /* AVFoundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 581766752E544AEC00C1B687 /* AVFoundation.framework */; };
+/* End PBXBuildFile section */
+
 /* Begin PBXContainerItemProxy section */
 		5817663D2E54241300C1B687 /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
@@ -27,11 +32,25 @@
 		5817662F2E54241200C1B687 /* MyQrCode.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = MyQrCode.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		5817663C2E54241300C1B687 /* MyQrCodeTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = MyQrCodeTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		581766462E54241300C1B687 /* MyQrCodeUITests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = MyQrCodeUITests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
+		581766752E544AEC00C1B687 /* AVFoundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AVFoundation.framework; path = System/Library/Frameworks/AVFoundation.framework; sourceTree = SDKROOT; };
 /* End PBXFileReference section */
 
+/* Begin PBXFileSystemSynchronizedBuildFileExceptionSet section */
+		581766792E544B6E00C1B687 /* Exceptions for "MyQrCode" folder in "MyQrCode" target */ = {
+			isa = PBXFileSystemSynchronizedBuildFileExceptionSet;
+			membershipExceptions = (
+				Info.plist,
+			);
+			target = 5817662E2E54241200C1B687 /* MyQrCode */;
+		};
+/* End PBXFileSystemSynchronizedBuildFileExceptionSet section */
+
 /* Begin PBXFileSystemSynchronizedRootGroup section */
 		581766312E54241200C1B687 /* MyQrCode */ = {
 			isa = PBXFileSystemSynchronizedRootGroup;
+			exceptions = (
+				581766792E544B6E00C1B687 /* Exceptions for "MyQrCode" folder in "MyQrCode" target */,
+			);
 			path = MyQrCode;
 			sourceTree = "<group>";
 		};
@@ -52,6 +71,8 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				581766772E544AFF00C1B687 /* AVFoundation.framework in Frameworks */,
+				5817666F2E54497800C1B687 /* QRCode in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -78,6 +99,7 @@
 				581766312E54241200C1B687 /* MyQrCode */,
 				5817663F2E54241300C1B687 /* MyQrCodeTests */,
 				581766492E54241300C1B687 /* MyQrCodeUITests */,
+				581766742E544AEC00C1B687 /* Frameworks */,
 				581766302E54241200C1B687 /* Products */,
 			);
 			sourceTree = "<group>";
@@ -92,6 +114,14 @@
 			name = Products;
 			sourceTree = "<group>";
 		};
+		581766742E544AEC00C1B687 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				581766752E544AEC00C1B687 /* AVFoundation.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -112,6 +142,7 @@
 			);
 			name = MyQrCode;
 			packageProductDependencies = (
+				5817666E2E54497800C1B687 /* QRCode */,
 			);
 			productName = MyQrCode;
 			productReference = 5817662F2E54241200C1B687 /* MyQrCode.app */;
@@ -195,6 +226,9 @@
 			);
 			mainGroup = 581766262E54241200C1B687;
 			minimizedProjectReferenceProxies = 1;
+			packageReferences = (
+				5817666D2E54497800C1B687 /* XCRemoteSwiftPackageReference "qrcode" */,
+			);
 			preferredProjectObjectVersion = 77;
 			productRefGroup = 581766302E54241200C1B687 /* Products */;
 			projectDirPath = "";
@@ -400,11 +434,15 @@
 				DEVELOPMENT_TEAM = 6AS7587HX4;
 				ENABLE_PREVIEWS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_FILE = MyQrCode/Info.plist;
+				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
+				INFOPLIST_KEY_NSCameraUsageDescription = "We need access to your camera to scan QR codes.";
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
+				IPHONEOS_DEPLOYMENT_TARGET = 15.6;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -432,11 +470,15 @@
 				DEVELOPMENT_TEAM = 6AS7587HX4;
 				ENABLE_PREVIEWS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_FILE = MyQrCode/Info.plist;
+				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
+				INFOPLIST_KEY_NSCameraUsageDescription = "We need access to your camera to scan QR codes.";
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
+				IPHONEOS_DEPLOYMENT_TARGET = 15.6;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -578,6 +620,25 @@
 			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
+
+/* Begin XCRemoteSwiftPackageReference section */
+		5817666D2E54497800C1B687 /* XCRemoteSwiftPackageReference "qrcode" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/dagronf/qrcode.git";
+			requirement = {
+				kind = upToNextMajorVersion;
+				minimumVersion = 27.11.0;
+			};
+		};
+/* End XCRemoteSwiftPackageReference section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		5817666E2E54497800C1B687 /* QRCode */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 5817666D2E54497800C1B687 /* XCRemoteSwiftPackageReference "qrcode" */;
+			productName = QRCode;
+		};
+/* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = 581766272E54241200C1B687 /* Project object */;
 }

MyQrCode.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -0,0 +1,33 @@
+{
+  "originHash" : "fd2455af71f8be5e18c9e2dd99f5fea73d2285d99fb343d056d9b2dde36eadc7",
+  "pins" : [
+    {
+      "identity" : "qrcode",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/dagronf/qrcode.git",
+      "state" : {
+        "revision" : "ea4047a7777bae470adc140cd94bfa5396a96202",
+        "version" : "27.11.0"
+      }
+    },
+    {
+      "identity" : "swift-qrcode-generator",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/dagronf/swift-qrcode-generator",
+      "state" : {
+        "revision" : "2b1980b825f08a81ccc762b0c4d17fcde9d5e953",
+        "version" : "2.0.2"
+      }
+    },
+    {
+      "identity" : "swiftimagereadwrite",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/dagronf/SwiftImageReadWrite",
+      "state" : {
+        "revision" : "42ace2412279f18bc264bc306e96b51c36e12a33",
+        "version" : "1.9.2"
+      }
+    }
+  ],
+  "version" : 3
+}

MyQrCode.xcodeproj/xcuserdata/yc.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   uuid = "7FD2F711-DEA4-44E1-A4A2-14C028D9E1E6"
+   type = "1"
+   version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            uuid = "A66FDEBC-88C2-4379-BD86-F86ABD338132"
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "MyQrCode/ScannerView.swift"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "154"
+            endingLineNumber = "154"
+            landmarkName = "body"
+            landmarkType = "24">
+         </BreakpointContent>
+      </BreakpointProxy>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            uuid = "BAD1F3E5-40C4-48EC-8689-8EE142990188"
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "MyQrCode/ScannerView.swift"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "155"
+            endingLineNumber = "155"
+            landmarkName = "body"
+            landmarkType = "24">
+         </BreakpointContent>
+      </BreakpointProxy>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            uuid = "7F5C90A9-5ED1-458F-8709-80FB15BEDF54"
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "MyQrCode/ScannerView.swift"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "147"
+            endingLineNumber = "147"
+            landmarkName = "body"
+            landmarkType = "24">
+         </BreakpointContent>
+      </BreakpointProxy>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            uuid = "D72F93EE-889D-443A-A073-E83F7C9D6409"
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "MyQrCode/ScannerView.swift"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "175"
+            endingLineNumber = "175"
+            landmarkName = "body"
+            landmarkType = "24">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
+</Bucket>

MyQrCode/ContentView.swift

@@ -6,18 +6,65 @@
 //
 
 import SwiftUI
+import QRCode
 
 struct ContentView: View {
+    @State private var showScanner = false
+    @State private var scannedCode: String?
+    
     var body: some View {
-        VStack {
+        NavigationView {
-            Image(systemName: "globe")
+            VStack(spacing: 30) {
-                .imageScale(.large)
+                Image(systemName: "qrcode.viewfinder")
-                .foregroundStyle(.tint)
+                    .font(.system(size: 100))
-            Text("Hello, world!")
+                    .foregroundColor(.blue)
+                
+                Text("条码扫描器")
+                    .font(.largeTitle)
+                    .fontWeight(.bold)
+                
+                if let code = scannedCode {
+                    VStack(spacing: 10) {
+                        Text("扫描结果:")
+                            .font(.headline)
+                        Text(code)
+                            .font(.body)
+                            .padding()
+                            .background(Color.gray.opacity(0.1))
+                            .cornerRadius(8)
+                    }
+                }
+                
+                Button(action: {
+                    showScanner = true
+                }) {
+                    HStack {
+                        Image(systemName: "camera")
+                        Text("开始扫描")
+                    }
+                    .font(.title2)
+                    .foregroundColor(.white)
+                    .padding()
+                    .background(Color.blue)
+                    .cornerRadius(10)
+                }
+                
+                Spacer()
+            }
+            .padding()
+            .navigationTitle("MyQrCode")
+            .sheet(isPresented: $showScanner) {
+                ScannerView()
+                    .onReceive(NotificationCenter.default.publisher(for: .scannerDidScanCode)) { notification in
+                        if let code = notification.object as? String {
+                            scannedCode = code
+                            showScanner = false
+                        }
+                    }
+            }
         }
-        .padding()
     }
-}
+} 
 
 #Preview {
     ContentView()

MyQrCode/Info.plist

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict/>
+</plist>

MyQrCode/ScannerView.swift

@@ -0,0 +1,477 @@
+import SwiftUI
+import AVFoundation
+internal import Combine
+
+// 通知名称扩展
+extension Notification.Name {
+    static let scannerDidScanCode = Notification.Name("scannerDidScanCode")
+}
+
+// 检测到的条码数据结构
+struct DetectedCode: Identifiable {
+    let id = UUID()
+    let type: String
+    let content: String
+    let bounds: CGRect
+}
+
+struct ScannerView: View {
+    @StateObject private var scannerViewModel = ScannerViewModel()
+    @Environment(\.dismiss) private var dismiss
+    @State private var showPreviewPause = false
+    @State private var previewLayer: AVCaptureVideoPreviewLayer?
+    @State private var screenOrientation = UIDevice.current.orientation
+    
+    var body: some View {
+        ZStack {
+            // 相机预览层
+            CameraPreviewView(session: scannerViewModel.captureSession, previewLayer: $previewLayer)
+                .ignoresSafeArea()
+            
+            // 扫描框覆盖层
+            VStack {
+                Spacer()
+                
+                // 扫描框
+                ZStack {
+                    RoundedRectangle(cornerRadius: 20)
+                        .stroke(Color.white, lineWidth: 3)
+                        .frame(width: 250, height: 250)
+                        .background(Color.black.opacity(0.3))
+                        .cornerRadius(20)
+                    
+                    // 扫描线动画
+                    if !showPreviewPause {
+                        Rectangle()
+                            .fill(LinearGradient(
+                                colors: [Color.clear, Color.green, Color.clear],
+                                startPoint: .top,
+                                endPoint: .bottom
+                            ))
+                            .frame(width: 250, height: 2)
+                            .offset(y: -125)
+                            .animation(
+                                Animation.linear(duration: 2)
+                                    .repeatForever(autoreverses: false),
+                                value: UUID()
+                            )
+                    }
+                }
+                
+                                // 提示文本
+                if showPreviewPause {
+                    VStack(spacing: 8) {
+                        Text("检测到条码")
+                            .foregroundColor(.white)
+                            .font(.headline)
+                        
+                        if scannerViewModel.detectedCodes.count == 1 {
+                            Text("1秒后自动显示结果")
+                                .foregroundColor(.green)
+                                .font(.subheadline)
+                        } else {
+                            Text("点击绿色标记选择要解码的条码")
+                                .foregroundColor(.white.opacity(0.8))
+                                .font(.subheadline)
+                        }
+                    }
+                    .padding(.top, 20)
+                } else {
+                    Text("将二维码或条形码放入框内")
+                            .foregroundColor(.white)
+                            .font(.headline)
+                            .padding(.top, 20)
+                }
+                
+                Spacer()
+                
+                // 底部按钮区域
+                VStack(spacing: 15) {
+                    if showPreviewPause {
+                        // 预览暂停时的按钮
+                        Button("重新扫描") {
+                            resetToScanning()
+                        }
+                        .foregroundColor(.white)
+                        .padding(.horizontal, 20)
+                        .padding(.vertical, 10)
+                        .background(Color.blue)
+                        .cornerRadius(20)
+                    }
+                    
+                    // 关闭按钮
+                    Button("关闭") {
+                        dismiss()
+                    }
+                    .foregroundColor(.white)
+                    .padding()
+                    .background(Color.black.opacity(0.6))
+                    .cornerRadius(10)
+                }
+                .padding(.bottom, 50)
+            }
+            
+            // 条码位置标记覆盖层（支持点击选择）
+            if showPreviewPause && !scannerViewModel.detectedCodes.isEmpty {
+                CodePositionOverlay(
+                    detectedCodes: scannerViewModel.detectedCodes,
+                    previewLayer: previewLayer,
+                    onCodeSelected: { selectedCode in
+                        NotificationCenter.default.post(name: .scannerDidScanCode, object: selectedCode)
+                        dismiss()
+                    }
+                )
+            }
+            
+            // 测试按钮（用于调试单个条码自动选择）
+            if showPreviewPause && scannerViewModel.detectedCodes.count == 1 {
+                VStack {
+                    HStack {
+                        Spacer()
+                        Button("测试自动选择") {
+                            let code = scannerViewModel.detectedCodes[0]
+                            let selectedCode = "类型: \(code.type)\n内容: \(code.content)"
+                            NotificationCenter.default.post(name: .scannerDidScanCode, object: selectedCode)
+                            dismiss()
+                        }
+                        .foregroundColor(.white)
+                        .padding(8)
+                        .background(Color.red)
+                        .cornerRadius(8)
+                        .padding(.trailing, 20)
+                    }
+                    Spacer()
+                }
+            }
+            
+
+        }
+        .onAppear {
+            scannerViewModel.startScanning()
+        }
+        .onDisappear {
+            scannerViewModel.stopScanning()
+        }
+        .alert("扫描失败", isPresented: $scannerViewModel.showAlert) {
+            Button("确定") {
+                dismiss()
+            }
+        } message: {
+            Text("您的设备不支持扫描二维码。请使用带相机的设备。")
+        }
+
+        .onReceive(scannerViewModel.$detectedCodes) { codes in
+            if !codes.isEmpty {
+                print("检测到条码数量: \(codes.count)")
+                if codes.count == 1 {
+                    // 只有一个码，显示标记后一秒自动显示结果
+                    print("单个条码，准备自动选择")
+                    pauseForPreview()
+                    autoSelectSingleCode(code: codes[0])
+                } else {
+                    // 多个码，暂停预览并引导用户选择
+                    print("多个条码，等待用户选择")
+                    pauseForPreview()
+                }
+            }
+        }
+        .onReceive(NotificationCenter.default.publisher(for: UIDevice.orientationDidChangeNotification)) { _ in
+            // 屏幕方向变化时更新状态
+            screenOrientation = UIDevice.current.orientation
+            print("Screen orientation changed to: \(screenOrientation.rawValue)")
+        }
+    }
+    
+    private func pauseForPreview() {
+        showPreviewPause = true
+        // 移除自动显示选择界面的定时器，用户必须手动选择
+    }
+    
+    private func resetToScanning() {
+        showPreviewPause = false
+        scannerViewModel.resetDetection()
+        scannerViewModel.startScanning()
+    }
+    
+    private func autoSelectSingleCode(code: DetectedCode) {
+        print("开始自动选择定时器，条码类型: \(code.type)")
+        // 一秒后自动选择单个条码
+        DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
+            print("自动选择定时器触发")
+            print("当前状态 - showPreviewPause: \(self.showPreviewPause)")
+            print("当前条码数量: \(self.scannerViewModel.detectedCodes.count)")
+            
+            if self.showPreviewPause && self.scannerViewModel.detectedCodes.count == 1 {
+                print("条件满足，执行自动选择")
+                // 确保仍然只有一个条码且处于预览暂停状态
+                let selectedCode = "类型: \(code.type)\n内容: \(code.content)"
+                print("发送通知: \(selectedCode)")
+                NotificationCenter.default.post(name: .scannerDidScanCode, object: selectedCode)
+                self.dismiss()
+            } else {
+                print("条件不满足，取消自动选择")
+            }
+        }
+    }
+}
+
+// 相机预览视图
+struct CameraPreviewView: UIViewRepresentable {
+    let session: AVCaptureSession
+    @Binding var previewLayer: AVCaptureVideoPreviewLayer?
+    
+    func makeUIView(context: Context) -> UIView {
+        let view = UIView()
+        let previewLayer = AVCaptureVideoPreviewLayer(session: session)
+        previewLayer.frame = view.bounds
+        previewLayer.videoGravity = .resizeAspectFill
+        view.layer.addSublayer(previewLayer)
+        
+        // 保存预览层引用
+        DispatchQueue.main.async {
+            self.previewLayer = previewLayer
+        }
+        
+        return view
+    }
+    
+    func updateUIView(_ uiView: UIView, context: Context) {
+        if let previewLayer = uiView.layer.sublayers?.first as? AVCaptureVideoPreviewLayer {
+            previewLayer.frame = uiView.bounds
+            
+            // 通知预览层尺寸变化
+            DispatchQueue.main.async {
+                self.previewLayer = previewLayer
+            }
+        }
+    }
+}
+
+// 扫描器视图模型
+class ScannerViewModel: NSObject, ObservableObject, AVCaptureMetadataOutputObjectsDelegate {
+    @Published var detectedCodes: [DetectedCode] = []
+    @Published var showAlert = false
+    
+    var captureSession: AVCaptureSession!
+    private var metadataOutput: AVCaptureMetadataOutput?
+    
+    override init() {
+        super.init()
+        setupCaptureSession()
+    }
+    
+    private func setupCaptureSession() {
+        captureSession = AVCaptureSession()
+        
+        guard let videoCaptureDevice = AVCaptureDevice.default(for: .video) else {
+            showAlert = true
+            return
+        }
+        
+        let videoInput: AVCaptureDeviceInput
+        
+        do {
+            videoInput = try AVCaptureDeviceInput(device: videoCaptureDevice)
+        } catch {
+            showAlert = true
+            return
+        }
+        
+        if captureSession.canAddInput(videoInput) {
+            captureSession.addInput(videoInput)
+        } else {
+            showAlert = true
+            return
+        }
+        
+        metadataOutput = AVCaptureMetadataOutput()
+        
+        if let metadataOutput = metadataOutput,
+           captureSession.canAddOutput(metadataOutput) {
+            captureSession.addOutput(metadataOutput)
+            metadataOutput.setMetadataObjectsDelegate(self, queue: DispatchQueue.main)
+            metadataOutput.metadataObjectTypes = [.qr, .ean8, .ean13, .code128, .code39, .upce, .pdf417, .aztec]
+        } else {
+            showAlert = true
+            return
+        }
+    }
+    
+    func startScanning() {
+        DispatchQueue.global(qos: .background).async { [weak self] in
+            self?.captureSession?.startRunning()
+        }
+    }
+    
+    func stopScanning() {
+        DispatchQueue.global(qos: .background).async { [weak self] in
+            self?.captureSession?.stopRunning()
+        }
+    }
+    
+    func resetDetection() {
+        DispatchQueue.main.async {
+            self.detectedCodes = []
+        }
+    }
+    
+    // MARK: - AVCaptureMetadataOutputObjectsDelegate
+    
+    func metadataOutput(_ output: AVCaptureMetadataOutput, 
+                       didOutput metadataObjects: [AVMetadataObject], 
+                       from connection: AVCaptureConnection) {
+        
+        print("metadataOutput 被调用，检测到 \(metadataObjects.count) 个对象")
+        
+        // 震动反馈
+        AudioServicesPlaySystemSound(SystemSoundID(kSystemSoundID_Vibrate))
+        
+        // 停止扫描
+        stopScanning()
+        
+        // 处理所有检测到的条码
+        var codes: [DetectedCode] = []
+        
+        for metadataObject in metadataObjects {
+            if let readableObject = metadataObject as? AVMetadataMachineReadableCodeObject,
+               let stringValue = readableObject.stringValue {
+                
+                let codeType = readableObject.type.rawValue
+                let bounds = readableObject.bounds
+                
+                let detectedCode = DetectedCode(
+                    type: codeType,
+                    content: stringValue,
+                    bounds: bounds
+                )
+                
+                codes.append(detectedCode)
+                print("创建 DetectedCode: 类型=\(codeType), 内容=\(stringValue)")
+            }
+        }
+        
+        print("准备更新 detectedCodes，数量: \(codes.count)")
+        
+        // 更新检测到的条码列表
+        DispatchQueue.main.async {
+            print("在主线程更新 detectedCodes")
+            self.detectedCodes = codes
+        }
+    }
+}
+
+// 条码位置标记覆盖层
+struct CodePositionOverlay: View {
+    let detectedCodes: [DetectedCode]
+    let previewLayer: AVCaptureVideoPreviewLayer?
+    let onCodeSelected: (String) -> Void
+    
+    var body: some View {
+        GeometryReader { geometry in
+            ZStack {
+                ForEach(detectedCodes) { code in
+                    CodePositionMarker(
+                        code: code, 
+                        screenSize: geometry.size,
+                        previewLayer: previewLayer,
+                        onCodeSelected: onCodeSelected
+                    )
+                }
+            }
+        }
+        .allowsHitTesting(true) // 允许触摸事件
+    }
+}
+
+// 单个条码位置标记
+struct CodePositionMarker: View {
+    let code: DetectedCode
+    let screenSize: CGSize
+    let previewLayer: AVCaptureVideoPreviewLayer?
+    let onCodeSelected: (String) -> Void
+    
+    var body: some View {
+        GeometryReader { geometry in
+            // 使用GeometryReader获取实时尺寸
+            let position = calculatePosition(screenSize: geometry.size)
+            
+            ZStack {
+                // 外圈
+                Circle()
+                    .stroke(Color.green, lineWidth: 3)
+                    .frame(width: 40, height: 40)
+                
+                // 内圈
+                Circle()
+                    .fill(Color.green.opacity(0.3))
+                    .frame(width: 20, height: 20)
+                
+                // 中心点
+                Circle()
+                    .fill(Color.green)
+                    .frame(width: 6, height: 6)
+            }
+            .position(x: position.x, y: position.y)
+            .background(
+                // 透明的点击区域背景，增大点击范围
+                Circle()
+                    .fill(Color.clear)
+                    .frame(width: 60, height: 60)
+            )
+            .onTapGesture {
+                // 点击标记时选择条码
+                let selectedCode = "类型: \(code.type)\n内容: \(code.content)"
+                onCodeSelected(selectedCode)
+            }
+            .onAppear {
+                print("CodePositionMarker appeared at: x=\(position.x), y=\(position.y)")
+                print("Screen size: \(geometry.size)")
+                print("Code bounds: \(code.bounds)")
+            }
+        }
+    }
+    
+    private func calculatePosition(screenSize: CGSize) -> CGPoint {
+        guard let previewLayer = previewLayer else {
+            // 如果没有预览层，使用屏幕中心
+            print("No preview layer available, using screen center")
+            return CGPoint(x: screenSize.width / 2, y: screenSize.height / 2)
+        }
+        
+        // 检查预览层是否有效
+        guard previewLayer.session?.isRunning == true else {
+            print("Preview layer session not running, using screen center")
+            return CGPoint(x: screenSize.width / 2, y: screenSize.height / 2)
+        }
+        
+        // 使用AVFoundation的坐标转换方法
+        let metadataObject = code.bounds
+        let convertedPoint = previewLayer.layerPointConverted(fromCaptureDevicePoint: CGPoint(
+            x: metadataObject.midX,
+            y: metadataObject.midY
+        ))
+        
+        // 验证转换结果是否有效
+        guard convertedPoint.x.isFinite && convertedPoint.y.isFinite else {
+            print("Invalid converted point: \(convertedPoint), using screen center")
+            return CGPoint(x: screenSize.width / 2, y: screenSize.height / 2)
+        }
+        
+        // 确保位置在屏幕范围内
+        let clampedX = max(20, min(screenSize.width - 20, convertedPoint.x))
+        let clampedY = max(20, min(screenSize.height - 20, convertedPoint.y))
+        
+        print("AVFoundation bounds: \(code.bounds)")
+        print("Converted point: \(convertedPoint)")
+        print("Screen size: \(screenSize)")
+        print("Clamped: x=\(clampedX), y=\(clampedY)")
+        
+        return CGPoint(x: clampedX, y: clampedY)
+    }
+}
+
+
+
+#Preview {
+    ScannerView()
+} 

README.md

@@ -0,0 +1,90 @@
+# MyQrCode - SwiftUI 版本
+
+## 项目概述
+
+这是一个使用 SwiftUI 构建的条码扫描器应用，支持二维码和多种条形码格式，已经从原来的 UIKit 版本完全转换为 SwiftUI。
+
+## 主要变化
+
+### 从 UIKit 转换为 SwiftUI
+
+- **ScannerViewController.swift** → **ScannerView.swift**
+  - 使用 `@StateObject` 管理扫描器状态
+  - 使用 `UIViewRepresentable` 包装相机预览层
+  - 采用 MVVM 架构模式
+
+### 新特性
+
+1. **现代化的 UI 设计**
+   - 扫描框覆盖层，提供视觉引导
+   - 美观的按钮和文本样式
+   - 响应式布局
+
+2. **改进的状态管理**
+   - 使用 `@Published` 属性包装器
+   - 通过通知中心传递扫描结果
+   - 更好的错误处理
+
+3. **用户体验优化**
+   - 扫描成功后的震动反馈
+   - 清晰的扫描指导文本
+   - 优雅的模态展示
+
+4. **多格式条码支持**
+   - 二维码 (QR Code)
+   - EAN-8 和 EAN-13 条形码
+   - Code 128 和 Code 39 条形码
+   - UPC-E 条形码
+   - PDF417 和 Aztec 码
+
+5. **微信风格扫描界面**
+   - 扫描线动画效果
+   - 检测到条码时短暂暂停预览
+   - 条码位置中心点标记（绿色圆圈）
+   - 点击标记直接选择条码
+   - 支持重新扫描
+
+## 文件结构
+
+```
+MyQrCode/
+├── ScannerView.swift          # 新的 SwiftUI 扫描器视图
+├── ContentView.swift          # 更新的主内容视图
+├── MyQrCodeApp.swift         # 应用入口点
+└── ...其他文件
+```
+
+## 使用方法
+
+1. 启动应用后，点击"开始扫描"按钮
+2. 将二维码或条形码放入扫描框内
+3. 扫描成功后：
+   - 短暂暂停预览并显示条码覆盖层
+   - 在相机预览上显示条码位置标记（绿色圆圈）
+4. 在预览暂停时：
+   - 在相机预览上显示条码位置标记（绿色圆圈）
+   - 单个条码：1秒后自动显示结果
+   - 多个条码：点击绿色标记选择要解码的条码
+   - 点击"重新扫描"继续扫描
+5. 单个条码自动选择，多个条码手动选择
+6. 可以重复扫描新的条码
+
+## 技术特点
+
+- **SwiftUI**: 现代化的声明式 UI 框架
+- **AVFoundation**: 相机和条码扫描功能
+- **MVVM 架构**: 清晰的代码分离和状态管理
+- **通知中心**: 组件间的松耦合通信
+
+## 兼容性
+
+- iOS 14.0+
+- Xcode 12.0+
+- Swift 5.3+
+
+## 注意事项
+
+- 需要在真机上测试相机功能
+- 确保在 Info.plist 中添加相机权限描述
+- 扫描器支持屏幕旋转和尺寸变化
+- 条码位置标记会自动适应屏幕变化