选择图片分享功能
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import SwiftUI
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import Foundation
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// 扩展UserDefaults，用于存储历史记录
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extension UserDefaults {
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// 历史记录存储格式：[album_id: 最近访问时间戳]
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private var historyRecordsKey: String { "history_records" }
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var historyRecords: [String: TimeInterval] {
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get {
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(object(forKey: historyRecordsKey) as? [String: TimeInterval]) ?? [:]
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}
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set {
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set(newValue, forKey: historyRecordsKey)
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}
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}
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// 添加历史记录（自动去重并更新时间戳）
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func addHistory(albumId: String) {
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var records = historyRecords
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records[albumId] = Date().timeIntervalSince1970 // 更新为当前时间戳
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historyRecords = records
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}
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// 删除单条历史记录
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func removeHistory(albumId: String) {
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var records = historyRecords
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records.removeValue(forKey: albumId)
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historyRecords = records
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}
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// 清除所有历史记录
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func clearAllHistory() {
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historyRecords = [:]
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}
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}
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struct ProfileView: View {
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// 示例用户数据
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let username = "Jetson User"
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// 收藏列表数据
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@State private var favoriteAlbums: [AlbumItem] = []
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@State private var isLoadingFavorites = false
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// 历史记录数据
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@State private var historyAlbums: [AlbumItem] = []
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@State private var isLoadingHistory = false
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@State private var showHistoryEmpty = false
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// 错误提示
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@State private var showError = false
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@State private var errorMessage = ""
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var body: some View {
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NavigationStack {
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List {
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// 用户信息头部
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Section {
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HStack(alignment: .center, spacing: 12) {
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// 头像
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Image(systemName: "person.circle.fill")
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.resizable()
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.frame(width: 80, height: 80)
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.foregroundColor(.blue)
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// 用户名
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VStack(spacing: 4) {
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Text(username)
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.font(.headline)
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}
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}
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.padding(.vertical, 20)
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}
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// 收藏区域
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Section(header: Text("我的收藏")
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.font(.headline)) {
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if isLoadingFavorites {
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HStack {
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Spacer()
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ProgressView("加载收藏中...")
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Spacer()
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}
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.padding(.vertical, 20)
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} else if favoriteAlbums.isEmpty {
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Text("暂无收藏，快去收藏喜欢的漫画吧～")
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.foregroundColor(.gray)
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.padding(.vertical, 20)
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} else {
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ForEach(favoriteAlbums) { item in
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NavigationLink(destination: PhotoView(albumId: item.album_id)) {
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VStack(alignment: .leading, spacing: 4) {
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Text(item.title)
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.font(.subheadline)
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.lineLimit(2)
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Text("ID: \(item.album_id)")
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.font(.caption)
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.foregroundColor(.gray)
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}
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}
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}
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.onDelete(perform: removeFromFavorites)
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}
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}
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// 历史记录区域
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Section(header: HStack {
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Text("浏览历史")
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.font(.headline)
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Spacer()
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Button("清除全部") {
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clearAllHistory()
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}
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.foregroundColor(.red)
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.font(.subheadline)
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}) {
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if isLoadingHistory {
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HStack {
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Spacer()
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ProgressView("加载历史中...")
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Spacer()
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}
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.padding(.vertical, 20)
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} else if historyAlbums.isEmpty {
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Text("暂无浏览记录")
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.foregroundColor(.gray)
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.padding(.vertical, 20)
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} else {
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ForEach(historyAlbums) { item in
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NavigationLink(destination: PhotoView(albumId: item.album_id)) {
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VStack(alignment: .leading, spacing: 4) {
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Text(item.title)
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.font(.subheadline)
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.lineLimit(2)
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Text("ID: \(item.album_id)")
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.font(.caption)
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.foregroundColor(.gray)
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}
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}
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}
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.onDelete(perform: removeFromHistory)
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}
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}
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// 设置区域
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Section(header: Text("设置")) {
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Button(action: {}) {
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HStack {
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Image(systemName: "gear")
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.foregroundColor(.gray)
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Text("设置")
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}
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}
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}
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}
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.navigationTitle("我的")
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.toolbar {
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EditButton()
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}
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.alert(isPresented: $showError) {
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Alert(title: Text("加载失败"), message: Text(errorMessage), dismissButton: .default(Text("确定")))
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}
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.onAppear {
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loadFavoriteAlbums()
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loadHistoryAlbums() // 加载历史记录
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}
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}
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}
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// MARK: - 收藏相关方法
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private func loadFavoriteAlbums() {
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let favoriteIds = UserDefaults.standard.favoriteAlbumIds
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guard !favoriteIds.isEmpty else {
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favoriteAlbums = []
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return
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}
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isLoadingFavorites = true
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favoriteAlbums = []
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let group = DispatchGroup()
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for id in favoriteIds {
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group.enter()
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fetchAlbumInfo(albumId: id) { albumItem in
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if let item = albumItem {
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favoriteAlbums.append(item)
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}
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group.leave()
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}
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}
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group.notify(queue: .main) {
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favoriteAlbums.sort { $0.album_id > $1.album_id }
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isLoadingFavorites = false
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}
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}
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private func removeFromFavorites(at offsets: IndexSet) {
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guard let index = offsets.first else { return }
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let removedItem = favoriteAlbums[index]
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favoriteAlbums.remove(at: index)
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var favorites = UserDefaults.standard.favoriteAlbumIds
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favorites.removeAll { $0 == removedItem.album_id }
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UserDefaults.standard.favoriteAlbumIds = favorites
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}
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// MARK: - 历史记录相关方法
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private func loadHistoryAlbums() {
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let historyRecords = UserDefaults.standard.historyRecords
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// 按时间戳排序（最新的在前）
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let sortedIds = historyRecords.keys.sorted {
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historyRecords[$0] ?? 0 > historyRecords[$1] ?? 0
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}
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guard !sortedIds.isEmpty else {
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historyAlbums = []
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return
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}
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isLoadingHistory = true
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historyAlbums = []
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let group = DispatchGroup()
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for id in sortedIds {
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group.enter()
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fetchAlbumInfo(albumId: id) { albumItem in
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if let item = albumItem {
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historyAlbums.append(item)
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}
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group.leave()
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}
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}
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group.notify(queue: .main) {
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isLoadingHistory = false
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}
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}
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private func removeFromHistory(at offsets: IndexSet) {
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guard let index = offsets.first else { return }
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let removedItem = historyAlbums[index]
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historyAlbums.remove(at: index)
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UserDefaults.standard.removeHistory(albumId: removedItem.album_id)
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}
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private func clearAllHistory() {
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UserDefaults.standard.clearAllHistory()
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historyAlbums = []
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}
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// MARK: - 通用方法：获取漫画信息
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private func fetchAlbumInfo(albumId: String, completion: @escaping (AlbumItem?) -> Void) {
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let urlString = "http://jm.rbq.college/album/\(albumId)/"
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guard let url = URL(string: urlString) else {
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completion(nil)
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return
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}
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URLSession.shared.dataTask(with: url) { data, response, error in
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if let error = error {
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DispatchQueue.main.async {
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showError(message: "加载失败: \(error.localizedDescription)")
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}
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completion(nil)
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return
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}
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guard let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200,
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let data = data else {
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completion(nil)
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return
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}
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do {
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let album = try JSONDecoder().decode(Album.self, from: data)
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let albumItem = AlbumItem(album_id: album.album_id, title: album.name)
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completion(albumItem)
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} catch {
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print("解析数据失败: \(error)")
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completion(nil)
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}
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}.resume()
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}
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private func showError(message: String) {
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errorMessage = message
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showError = true
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}
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}
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