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import SwiftUI
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// MARK: - 内容输入和预览组件
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struct CodeContentInputView: View {
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let selectedDataType: DataType
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let selectedBarcodeType: BarcodeType
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let selectedQRCodeType: QRCodeType
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@Binding var content: String
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@Binding var validationResult: BarcodeValidator.ValidationResult?
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@FocusState.Binding var isContentFieldFocused: Bool
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var body: some View {
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VStack(spacing: 16) {
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// 内容输入区域
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contentInputSection
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// 预览区域
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if !content.isEmpty {
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previewSection
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}
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}
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}
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// MARK: - 内容输入区域
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private var contentInputSection: some View {
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Section("内容") {
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VStack(alignment: .leading, spacing: 12) {
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// 输入框和计数布局
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VStack(alignment: .trailing, spacing: 4) {
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// 条形码格式提示
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if selectedDataType == .barcode {
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HStack {
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Image(systemName: "info.circle")
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.font(.caption)
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.foregroundColor(.blue)
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Text(getBarcodeFormatHint())
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.font(.caption)
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.foregroundColor(.secondary)
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.lineLimit(2)
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Spacer()
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}
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.padding(.horizontal, 4)
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.padding(.vertical, 6)
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.background(
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RoundedRectangle(cornerRadius: 6)
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.fill(Color.blue.opacity(0.1))
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)
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}
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TextField(getPlaceholderText(), text: $content)
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.textFieldStyle(RoundedBorderTextFieldStyle())
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.keyboardType(getKeyboardType())
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.textInputAutocapitalization(getAutocapitalization())
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.disableAutocorrection(true)
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.focused($isContentFieldFocused)
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.toolbar {
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ToolbarItemGroup(placement: .keyboard) {
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Spacer()
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Button("完成") {
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isContentFieldFocused = false
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}
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.foregroundColor(.blue)
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.font(.system(size: 16, weight: .medium))
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}
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}
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.foregroundColor(.black)
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.onChange(of: content) { newValue in
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handleContentChange(newValue)
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}
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// 计数显示在输入框下方，右对齐
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if let maxLen = getMaxLength(), selectedDataType == .barcode {
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Text("\(normalizedInputCount())/\(maxLen)")
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.font(.caption2)
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.foregroundColor(.blue)
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.fontWeight(.medium)
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}
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}
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// 输入统计与验证状态
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HStack {
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if let result = validationResult, result.isValid {
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Text("format_correct".localized)
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.font(.caption2)
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.foregroundColor(.green)
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} else if !content.isEmpty {
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Text("format_checking".localized)
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.font(.caption2)
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.foregroundColor(.orange)
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}
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}
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// 条形码验证信息（仅在格式不正确时显示）
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if selectedDataType == .barcode && !content.isEmpty && (validationResult == nil || !validationResult!.isValid) {
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BarcodeValidationInfoView(
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validationResult: validationResult,
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barcodeType: selectedBarcodeType
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)
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}
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}
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}
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}
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// MARK: - 预览区域
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private var previewSection: some View {
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Section("预览") {
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VStack(alignment: .leading, spacing: 12) {
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HStack {
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Image(systemName: selectedDataType.icon)
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Text(selectedDataType.displayName)
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Spacer()
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if selectedDataType == .barcode {
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Text(selectedBarcodeType.displayName)
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.font(.caption)
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.padding(.horizontal, 8)
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.padding(.vertical, 2)
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.background(Color.green.opacity(0.1))
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.foregroundColor(.green)
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.cornerRadius(8)
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} else {
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Text(selectedQRCodeType.displayName)
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.font(.caption)
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.padding(.horizontal, 8)
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.padding(.vertical, 2)
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.background(Color.orange.opacity(0.1))
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.foregroundColor(.orange)
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.cornerRadius(8)
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}
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}
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if selectedDataType == .barcode && !content.isEmpty && isInputComplete() {
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// 条形码图片预览（仅在输入完成时显示）
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BarcodePreviewView(
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content: content,
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barcodeType: selectedBarcodeType
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)
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.frame(height: 120)
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.frame(maxWidth: .infinity)
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} else {
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// 二维码或文本预览
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Text(content)
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.font(.body)
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.foregroundColor(.secondary)
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.padding()
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.frame(maxWidth: .infinity, alignment: .leading)
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}
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}
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.padding()
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.background(Color(.systemGray6))
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.cornerRadius(8)
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}
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}
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// MARK: - 辅助方法
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private func handleContentChange(_ newValue: String) {
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// 针对有固定长度与数字要求的类型，进行输入规范化（仅保留数字并按最大长度截断）
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if selectedDataType == .barcode, let maxLen = getMaxLength(), requiresDigitsOnly() {
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let digits = newValue.filter { $0.isNumber }
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let truncated = String(digits.prefix(maxLen))
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if truncated != newValue {
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content = truncated
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// 播放输入提示音
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playInputSound()
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}
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} else if selectedDataType == .barcode {
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// 播放输入提示音
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playInputSound()
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}
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validateBarcodeContent(content)
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}
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private func validateBarcodeContent(_ newContent: String) {
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guard selectedDataType == .barcode else { return }
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validationResult = BarcodeValidator.validateBarcode(newContent, type: selectedBarcodeType)
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}
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private func getKeyboardType() -> UIKeyboardType {
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guard selectedDataType == .barcode else { return .default }
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switch selectedBarcodeType {
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case .ean13, .ean8, .upce, .itf14:
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return .numberPad
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case .code39, .code128, .pdf417:
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return .asciiCapable
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}
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}
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private func getAutocapitalization() -> TextInputAutocapitalization {
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guard selectedDataType == .barcode else { return .sentences }
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switch selectedBarcodeType {
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case .ean13, .ean8, .upce, .itf14:
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return .never
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case .code39, .code128, .pdf417:
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return .characters
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}
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}
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private func getMaxLength() -> Int? {
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guard selectedDataType == .barcode else { return nil }
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switch selectedBarcodeType {
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case .ean13: return 13
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case .ean8: return 8
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case .upce: return 8
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case .itf14: return 14
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default: return nil
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}
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}
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private func requiresDigitsOnly() -> Bool {
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guard selectedDataType == .barcode else { return false }
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switch selectedBarcodeType {
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case .ean13, .ean8, .upce, .itf14:
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return true
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default:
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return false
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}
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}
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private func normalizedInputCount() -> Int {
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if requiresDigitsOnly() {
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return content.filter { $0.isNumber }.count
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}
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return content.count
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}
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private func getBarcodeFormatHint() -> String {
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switch selectedBarcodeType {
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case .ean13:
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return "ean_13_format_hint".localized
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case .ean8:
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return "ean_8_format_hint".localized
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case .upce:
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return "upc_e_format_hint".localized
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case .code39:
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return "code_39_format_hint".localized
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case .code128:
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return "code_128_format_hint".localized
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case .itf14:
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return "itf_14_format_hint".localized
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case .pdf417:
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return "pdf417_format_hint".localized
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}
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}
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private func getPlaceholderText() -> String {
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if selectedDataType == .barcode {
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switch selectedBarcodeType {
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case .ean13:
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return "input_13_digits".localized
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case .ean8:
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return "input_8_digits".localized
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case .upce:
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return "input_8_digits".localized
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case .code39:
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return "input_letters_numbers".localized
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case .code128:
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return "input_any_characters".localized
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case .itf14:
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return "input_14_digits".localized
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case .pdf417:
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return "input_any_characters".localized
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}
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} else {
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return "please_enter_content".localized
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}
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}
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private func playInputSound() {
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// 使用系统触觉反馈作为输入提示音
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let impactFeedback = UIImpactFeedbackGenerator(style: .light)
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impactFeedback.impactOccurred()
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}
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private func isInputComplete() -> Bool {
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if selectedDataType == .barcode {
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// 条形码需要验证格式正确
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return validationResult?.isValid == true
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} else {
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// 二维码只要有内容就算完成
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return !content.isEmpty
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}
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}
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}
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