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import SwiftUI
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import AVFoundation
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import AudioToolbox
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import Combine
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import CoreData
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import QRCode
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import Vision
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// MARK: - 主扫描视图
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struct ScannerView: View {
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@StateObject private var scannerViewModel = ScannerViewModel()
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@State private var showPreviewPause = false
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@State private var screenOrientation = UIDevice.current.orientation
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@State private var previewLayer: AVCaptureVideoPreviewLayer?
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@State private var navigateToDetail = false
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@State private var selectedHistoryItem: HistoryItem?
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// 图片解码相关状态
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@State private var showImagePicker = false
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@State private var isDecodingImage = false
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@State private var decodedImageCodes: [DetectedCode] = []
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@State private var showDecodeFailure = false
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@State private var decodeFailureMessage = ""
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var body: some View {
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ZStack {
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// 相机权限检查
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if scannerViewModel.cameraAuthorizationStatus == .authorized {
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// 相机预览层
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CameraPreviewView(session: scannerViewModel.captureSession, previewLayer: $previewLayer)
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.ignoresSafeArea()
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// 扫描界面覆盖层
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ScanningOverlayView(
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showPreviewPause: showPreviewPause &&
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((scannerViewModel.detectedCodes.count > 1) || (decodedImageCodes.count > 1)),
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detectedCodesCount: scannerViewModel.detectedCodes.count + decodedImageCodes.count,
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onImageDecode: { showImagePicker = true }
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)
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// 条码位置标记覆盖层 - 只在需要用户选择时显示
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if showPreviewPause &&
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((!scannerViewModel.detectedCodes.isEmpty && scannerViewModel.detectedCodes.count > 1) ||
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(!decodedImageCodes.isEmpty && decodedImageCodes.count > 1)) {
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CodePositionOverlay(
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detectedCodes: scannerViewModel.detectedCodes + decodedImageCodes,
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previewLayer: previewLayer,
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onCodeSelected: handleCodeSelection
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)
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}
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// 测试按钮（调试用）- 只在需要用户选择时显示
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if showPreviewPause &&
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((scannerViewModel.detectedCodes.count > 1) || (decodedImageCodes.count > 1)) {
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let singleCode = scannerViewModel.detectedCodes.first ?? decodedImageCodes.first
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if let code = singleCode {
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TestAutoSelectButton(
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detectedCode: code,
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onSelect: handleCodeSelection
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)
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}
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}
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// 解码失败提示
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if showDecodeFailure {
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DecodeFailureOverlay(
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message: decodeFailureMessage,
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onDismiss: {
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showDecodeFailure = false
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}
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)
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}
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} else {
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// 权限未授权时的UI
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CameraPermissionView(
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authorizationStatus: scannerViewModel.cameraAuthorizationStatus,
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onRequestPermission: {
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scannerViewModel.refreshCameraPermission()
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},
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onOpenSettings: {
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scannerViewModel.openSettings()
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}
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)
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}
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}
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.navigationTitle("扫描器")
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.navigationBarTitleDisplayMode(.inline)
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.navigationBarBackButtonHidden(false)
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.sheet(isPresented: $showImagePicker) {
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ImagePicker(onImageSelected: handleImageDecodeResult)
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}
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.toolbar {
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ToolbarItem(placement: .navigationBarLeading) {
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// 手电筒按钮 - 只在相机权限已授权时显示
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if scannerViewModel.cameraAuthorizationStatus == .authorized && scannerViewModel.isTorchAvailable {
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Button(action: {
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logInfo("🔦 用户点击手电筒按钮", className: "ScannerView")
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// 添加触觉反馈
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let impactFeedback = UIImpactFeedbackGenerator(style: .medium)
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impactFeedback.impactOccurred()
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scannerViewModel.toggleTorch()
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}) {
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Image(systemName: scannerViewModel.isTorchOn ? "bolt.fill" : "bolt")
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.font(.system(size: 18, weight: .semibold))
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.foregroundColor(scannerViewModel.isTorchOn ? .yellow : .blue)
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}
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}
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}
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ToolbarItem(placement: .navigationBarTrailing) {
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// 重新扫描按钮 - 只在预览暂停状态时显示
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if showPreviewPause {
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Button(action: {
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logInfo("🔄 用户点击工具栏重新扫描按钮", className: "ScannerView")
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// 添加触觉反馈
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let impactFeedback = UIImpactFeedbackGenerator(style: .medium)
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impactFeedback.impactOccurred()
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resetToScanning()
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}) {
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HStack(spacing: 6) {
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Image(systemName: "arrow.clockwise")
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.font(.system(size: 16, weight: .semibold))
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Text("rescan_button".localized)
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.font(.system(size: 14, weight: .medium))
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}
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.foregroundColor(.blue)
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}
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}
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}
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}
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.onAppear {
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// 只有在相机权限已授权时才启动扫描
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if scannerViewModel.cameraAuthorizationStatus == .authorized {
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scannerViewModel.startScanning()
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}
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}
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.onDisappear {
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scannerViewModel.stopScanning()
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// 确保退出时关闭手电筒
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if scannerViewModel.isTorchOn {
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scannerViewModel.turnOffTorch()
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}
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}
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.alert("scan_error_title".localized, isPresented: $scannerViewModel.showAlert) {
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Button("OK") { }
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} message: {
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Text("scan_error_message".localized)
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}
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.onReceive(scannerViewModel.$detectedCodes) { codes in
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handleDetectedCodes(codes)
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}
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.onReceive(scannerViewModel.$cameraAuthorizationStatus) { status in
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if status == .authorized {
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logInfo("🎯 相机权限已授权，启动扫描", className: "ScannerView")
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scannerViewModel.startScanning()
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}
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}
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.onReceive(NotificationCenter.default.publisher(for: UIDevice.orientationDidChangeNotification)) { _ in
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handleOrientationChange()
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}
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.background(
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NavigationLink(
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destination: Group {
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if let historyItem = selectedHistoryItem {
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QRCodeDetailView(historyItem: historyItem)
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.onDisappear {
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// 从详情页返回时，重新开始扫描
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logInfo("🔄 从详情页返回，重新开始扫描", className: "ScannerView")
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resetToScanning()
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}
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}
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},
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isActive: $navigateToDetail
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) {
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EmptyView()
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}
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)
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}
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// MARK: - 私有方法
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private func handleDetectedCodes(_ codes: [DetectedCode]) {
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guard !codes.isEmpty else { return }
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logInfo("检测到条码数量: \(codes.count)", className: "ScannerView")
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if codes.count == 1 {
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logInfo("单个条码，准备自动选择", className: "ScannerView")
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pauseForPreview()
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autoSelectSingleCode(code: codes[0])
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} else {
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logInfo("多个条码，等待用户选择", className: "ScannerView")
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pauseForPreview()
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}
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}
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private func handleOrientationChange() {
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screenOrientation = UIDevice.current.orientation
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logInfo("Screen orientation changed to: \(screenOrientation.rawValue)", className: "ScannerView")
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}
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private func handleCodeSelection(_ selectedCode: DetectedCode) {
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logInfo("🎯 ScannerView 收到条码选择回调", className: "ScannerView")
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logInfo(" 选择的条码ID: \(selectedCode.id)", className: "ScannerView")
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logInfo(" 选择的条码类型: \(selectedCode.type)", className: "ScannerView")
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logInfo(" 选择的条码内容: \(selectedCode.content)", className: "ScannerView")
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logInfo(" 选择的条码位置: \(selectedCode.bounds)", className: "ScannerView")
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// 停止扫描功能，避免在详情页面继续扫描
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scannerViewModel.stopScanning()
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logInfo("🛑 已停止扫描功能", className: "ScannerView")
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// 创建 HistoryItem 并保存到 Core Data
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let historyItem = createHistoryItem(from: selectedCode)
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// 延迟一小段时间确保扫描完全停止后再跳转
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {
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// 设置选中的历史记录项并导航到详情页
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self.selectedHistoryItem = historyItem
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self.navigateToDetail = true
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}
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// 发送通知（保持向后兼容）
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let formattedResult = "类型: \(selectedCode.type)\n内容: \(selectedCode.content)"
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logInfo(" 格式化结果: \(formattedResult)", className: "ScannerView")
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NotificationCenter.default.post(name: .scannerDidScanCode, object: formattedResult)
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}
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private func createHistoryItem(from detectedCode: DetectedCode) -> HistoryItem {
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let context = CoreDataManager.shared.container.viewContext
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let historyItem = HistoryItem(context: context)
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historyItem.id = UUID()
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historyItem.content = detectedCode.content
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historyItem.dataType = DataType.qrcode.rawValue
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historyItem.dataSource = DataSource.scanned.rawValue
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historyItem.createdAt = Date()
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historyItem.isFavorite = false
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// 根据条码类型设置相应的类型字段
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if detectedCode.type.lowercased().contains("qr") || detectedCode.type.lowercased().contains("二维码") {
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// 尝试解析二维码类型
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let parsedData = QRCodeParser.parseQRCode(detectedCode.content)
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historyItem.qrCodeType = parsedData.type.rawValue
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} else {
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// 条形码类型
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historyItem.barcodeType = detectedCode.type
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}
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// 保存到 Core Data
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CoreDataManager.shared.addHistoryItem(historyItem)
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logInfo("✅ 已创建并保存历史记录项", className: "ScannerView")
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return historyItem
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}
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private func pauseForPreview() {
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showPreviewPause = true
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// 暂停相机功能，防止在预览暂停时继续拍照
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scannerViewModel.pauseCamera()
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}
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private func resetToScanning() {
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logInfo("🔄 ScannerView 开始重置到扫描状态", className: "ScannerView")
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// 重置UI状态
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showPreviewPause = false
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// 重置扫描状态
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scannerViewModel.resetDetection()
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// 重置图片解码状态
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resetImageDecodeState()
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// 恢复相机功能并重新开始扫描
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scannerViewModel.resumeCamera()
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logInfo("✅ ScannerView 已重置到扫描状态", className: "ScannerView")
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}
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private func autoSelectSingleCode(code: DetectedCode) {
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logInfo("开始自动选择定时器，条码类型: \(code.type)", className: "ScannerView")
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DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
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let totalCodes = self.scannerViewModel.detectedCodes.count + self.decodedImageCodes.count
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guard self.showPreviewPause && totalCodes == 1 else {
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logInfo("条件不满足，取消自动选择", className: "ScannerView")
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return
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}
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logInfo("条件满足，执行自动选择", className: "ScannerView")
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self.handleCodeSelection(code)
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}
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}
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// MARK: - 图片解码相关方法
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/// 处理图片解码结果
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private func handleImageDecodeResult(_ image: UIImage) {
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isDecodingImage = true
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decodedImageCodes.removeAll()
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showDecodeFailure = false
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decodeFailureMessage = ""
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logInfo("🔍 开始解码图片", className: "ScannerView")
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// 在后台线程进行解码
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DispatchQueue.global(qos: .userInitiated).async { [self] in
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var allResults: [DetectedCode] = []
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// 使用Vision框架检测所有条码（包括二维码和条形码）
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if let cgImage = image.cgImage {
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let barcodeResults = detectBarcodes(in: cgImage)
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if !barcodeResults.isEmpty {
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logInfo("✅ 检测到 \(barcodeResults.count) 个条码", className: "ScannerView")
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allResults.append(contentsOf: barcodeResults)
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}
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}
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// 如果没有检测到条码，尝试使用QRCode库作为备用方案
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if allResults.isEmpty {
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let detectedQR = QRCode.DetectQRCodes(in: image)
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if detectedQR.count > 0 {
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logInfo("✅ 使用QRCode库检测到 \(detectedQR.count) 个二维码", className: "ScannerView")
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let qrResults = detectedQR.enumerated().map { index, qrCode in
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DetectedCode(
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type: "QR Code",
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content: qrCode.messageString ?? "未知内容",
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bounds: qrCode.bounds
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)
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}
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allResults.append(contentsOf: qrResults)
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}
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}
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DispatchQueue.main.async {
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if !allResults.isEmpty {
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// 去重：移除相同内容的重复条码
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let uniqueResults = self.removeDuplicateCodes(allResults)
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self.decodedImageCodes = uniqueResults
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self.isDecodingImage = false
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logInfo("✅ 图片解码完成，去重后共 \(uniqueResults.count) 个结果", className: "ScannerView")
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// 图片解码结果直接跳转，不显示选择点
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if uniqueResults.count == 1 {
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// 直接处理单个条码，跳转到结果页
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
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self.handleCodeSelection(uniqueResults[0])
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}
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} else if uniqueResults.count > 1 {
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// 多个条码时，显示选择点让用户选择
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self.pauseForPreview()
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logInfo("📱 检测到多个条码，显示选择点", className: "ScannerView")
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}
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} else {
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self.isDecodingImage = false
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self.decodeFailureMessage = "图片中未检测到二维码或条形码"
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self.showDecodeFailure = true
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logWarning("❌ 图片中未检测到二维码或条形码", className: "ScannerView")
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}
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}
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}
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}
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/// 重置图片解码状态
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private func resetImageDecodeState() {
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decodedImageCodes.removeAll()
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showDecodeFailure = false
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decodeFailureMessage = ""
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}
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/// 使用Vision框架检测条形码
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private func detectBarcodes(in cgImage: CGImage) -> [DetectedCode] {
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let request = VNDetectBarcodesRequest { request, error in
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if let error = error {
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logWarning("条形码检测错误: \(error.localizedDescription)", className: "ScannerView")
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return
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}
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}
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// 设置条形码类型
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request.symbologies = [
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.ean8,
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.ean13,
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.upce,
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.code39,
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.code39Checksum,
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.code39FullASCII,
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.code39FullASCIIChecksum,
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.code93,
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.code93i,
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.code128,
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.itf14,
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.pdf417,
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.qr,
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.dataMatrix,
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.aztec
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]
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let handler = VNImageRequestHandler(cgImage: cgImage, options: [:])
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do {
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try handler.perform([request])
|
|
|
|
|
|
let results = request.results ?? []
|
|
|
guard !results.isEmpty else {
|
|
|
return []
|
|
|
}
|
|
|
|
|
|
return results.enumerated().map { index, observation in
|
|
|
let barcodeType = getBarcodeTypeString(from: observation.symbology)
|
|
|
let content = observation.payloadStringValue ?? "未知内容"
|
|
|
|
|
|
logInfo("检测到条形码 #\(index + 1): 类型=\(barcodeType), 内容=\(content)", className: "ScannerView")
|
|
|
|
|
|
return DetectedCode(
|
|
|
type: barcodeType,
|
|
|
content: content,
|
|
|
bounds: observation.boundingBox
|
|
|
)
|
|
|
}
|
|
|
} catch {
|
|
|
logWarning("条形码检测请求失败: \(error.localizedDescription)", className: "ScannerView")
|
|
|
return []
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// 获取条形码类型的可读字符串
|
|
|
private func getBarcodeTypeString(from symbology: VNBarcodeSymbology) -> String {
|
|
|
switch symbology {
|
|
|
case .ean8:
|
|
|
return "EAN-8"
|
|
|
case .ean13:
|
|
|
return "EAN-13"
|
|
|
case .upce:
|
|
|
return "UPC-E"
|
|
|
case .code39:
|
|
|
return "Code 39"
|
|
|
case .code39Checksum:
|
|
|
return "Code 39 (Checksum)"
|
|
|
case .code39FullASCII:
|
|
|
return "Code 39 (Full ASCII)"
|
|
|
case .code39FullASCIIChecksum:
|
|
|
return "Code 39 (Full ASCII + Checksum)"
|
|
|
case .code93:
|
|
|
return "Code 93"
|
|
|
case .code93i:
|
|
|
return "Code 93i"
|
|
|
case .code128:
|
|
|
return "Code 128"
|
|
|
case .itf14:
|
|
|
return "ITF-14"
|
|
|
case .pdf417:
|
|
|
return "PDF417"
|
|
|
case .qr:
|
|
|
return "QR Code"
|
|
|
case .dataMatrix:
|
|
|
return "Data Matrix"
|
|
|
case .aztec:
|
|
|
return "Aztec"
|
|
|
default:
|
|
|
return "Unknown Barcode"
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// 移除重复的条码（基于内容去重）
|
|
|
private func removeDuplicateCodes(_ codes: [DetectedCode]) -> [DetectedCode] {
|
|
|
var uniqueCodes: [DetectedCode] = []
|
|
|
var seenContents: Set<String> = []
|
|
|
|
|
|
for code in codes {
|
|
|
if !seenContents.contains(code.content) {
|
|
|
seenContents.insert(code.content)
|
|
|
uniqueCodes.append(code)
|
|
|
} else {
|
|
|
logInfo("🔄 发现重复条码，内容: \(code.content)，已跳过", className: "ScannerView")
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return uniqueCodes
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// MARK: - 图片选择器（兼容iOS 15）
|
|
|
struct ImagePicker: UIViewControllerRepresentable {
|
|
|
let onImageSelected: (UIImage) -> Void
|
|
|
|
|
|
func makeUIViewController(context: Context) -> UIImagePickerController {
|
|
|
let picker = UIImagePickerController()
|
|
|
picker.delegate = context.coordinator
|
|
|
picker.sourceType = .photoLibrary
|
|
|
picker.allowsEditing = false
|
|
|
return picker
|
|
|
}
|
|
|
|
|
|
func updateUIViewController(_ uiViewController: UIImagePickerController, context: Context) {}
|
|
|
|
|
|
func makeCoordinator() -> Coordinator {
|
|
|
Coordinator(self)
|
|
|
}
|
|
|
|
|
|
class Coordinator: NSObject, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
|
|
|
let parent: ImagePicker
|
|
|
|
|
|
init(_ parent: ImagePicker) {
|
|
|
self.parent = parent
|
|
|
}
|
|
|
|
|
|
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
|
|
|
if let image = info[.originalImage] as? UIImage {
|
|
|
parent.onImageSelected(image)
|
|
|
}
|
|
|
picker.dismiss(animated: true)
|
|
|
}
|
|
|
|
|
|
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
|
|
|
picker.dismiss(animated: true)
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// MARK: - 解码失败提示覆盖层
|
|
|
struct DecodeFailureOverlay: View {
|
|
|
let message: String
|
|
|
let onDismiss: () -> Void
|
|
|
|
|
|
var body: some View {
|
|
|
ZStack {
|
|
|
// 半透明背景
|
|
|
Color.black.opacity(0.7)
|
|
|
.ignoresSafeArea()
|
|
|
.onTapGesture {
|
|
|
onDismiss()
|
|
|
}
|
|
|
|
|
|
// 失败提示卡片
|
|
|
VStack(spacing: 20) {
|
|
|
// 失败图标
|
|
|
Image(systemName: "exclamationmark.triangle.fill")
|
|
|
.font(.system(size: 50))
|
|
|
.foregroundColor(.orange)
|
|
|
|
|
|
// 失败标题
|
|
|
Text("解码失败")
|
|
|
.font(.title2)
|
|
|
.fontWeight(.bold)
|
|
|
.foregroundColor(.white)
|
|
|
|
|
|
// 失败消息
|
|
|
Text(message)
|
|
|
.font(.body)
|
|
|
.foregroundColor(.white.opacity(0.8))
|
|
|
.multilineTextAlignment(.center)
|
|
|
.padding(.horizontal, 20)
|
|
|
|
|
|
// 重试按钮
|
|
|
Button(action: {
|
|
|
onDismiss()
|
|
|
}) {
|
|
|
HStack(spacing: 8) {
|
|
|
Image(systemName: "arrow.clockwise")
|
|
|
.font(.system(size: 16, weight: .semibold))
|
|
|
|
|
|
Text("重新选择图片")
|
|
|
.font(.headline)
|
|
|
.fontWeight(.medium)
|
|
|
}
|
|
|
.foregroundColor(.white)
|
|
|
.padding(.horizontal, 20)
|
|
|
.padding(.vertical, 12)
|
|
|
.background(
|
|
|
RoundedRectangle(cornerRadius: 12)
|
|
|
.fill(Color.blue.opacity(0.8))
|
|
|
.overlay(
|
|
|
RoundedRectangle(cornerRadius: 12)
|
|
|
.stroke(Color.blue, lineWidth: 1)
|
|
|
)
|
|
|
)
|
|
|
}
|
|
|
.buttonStyle(PlainButtonStyle())
|
|
|
}
|
|
|
.padding(30)
|
|
|
.background(
|
|
|
RoundedRectangle(cornerRadius: 20)
|
|
|
.fill(Color(.systemGray6).opacity(0.9))
|
|
|
.overlay(
|
|
|
RoundedRectangle(cornerRadius: 20)
|
|
|
.stroke(Color.white.opacity(0.2), lineWidth: 1)
|
|
|
)
|
|
|
)
|
|
|
.shadow(color: .black.opacity(0.3), radius: 20, x: 0, y: 10)
|
|
|
}
|
|
|
.zIndex(2000) // 确保在最上层
|
|
|
.transition(.opacity.combined(with: .scale))
|
|
|
}
|
|
|
}
|
|
|
|
|
|
#if DEBUG
|
|
|
struct ScannerView_Previews: PreviewProvider {
|
|
|
static var previews: some View {
|
|
|
NavigationView {
|
|
|
ScannerView()
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
#endif |
