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375 lines
18 KiB
Swift
375 lines
18 KiB
Swift
//
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// MessageListViewController.swift
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// Bark
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//
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// Created by huangfeng on 2020/5/25.
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// Copyright © 2020 Fin. All rights reserved.
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//
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import Material
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import MJRefresh
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import RealmSwift
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import RxCocoa
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import RxDataSources
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import RxSwift
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import UIKit
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enum MessageDeleteType: Int {
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case lastHour = 0
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case today
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case todayAndYesterday
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case allTime
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var string: String {
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return [
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NSLocalizedString("lastHour"),
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NSLocalizedString("today"),
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NSLocalizedString("todayAndYesterday"),
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NSLocalizedString("allTime")
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][self.rawValue]
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}
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}
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class MessageListViewController: BaseViewController<MessageListViewModel> {
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let deleteButton: UIBarButtonItem = {
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let btn = BKButton()
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btn.setImage(UIImage(named: "baseline_delete_outline_black_24pt"), for: .normal)
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btn.frame = CGRect(x: 0, y: 0, width: 40, height: 40)
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return UIBarButtonItem(customView: btn)
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}()
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let groupButton: UIBarButtonItem = {
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let btn = BKButton()
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btn.setImage(UIImage(named: "group_expand")?.withRenderingMode(.alwaysTemplate), for: .normal)
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btn.setImage(UIImage(named: "group_collapse")?.withRenderingMode(.alwaysTemplate), for: .selected)
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btn.imageView?.tintColor = BKColor.black
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btn.frame = CGRect(x: 0, y: 0, width: 40, height: 40)
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return UIBarButtonItem(customView: btn)
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}()
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private var expandedGroup: Set<String> = []
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private let itemDeleteInGroupRelay = PublishRelay<MessageItemModel>()
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lazy var tableView: UITableView = {
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let tableView = UITableView()
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tableView.separatorStyle = .none
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tableView.backgroundColor = BKColor.background.primary
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tableView.register(MessageTableViewCell.self, forCellReuseIdentifier: "\(MessageTableViewCell.self)")
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tableView.register(MessageGroupTableViewCell.self, forCellReuseIdentifier: "\(MessageGroupTableViewCell.self)")
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// 设置了这个后，第一次进页面 LargeTitle 就会收缩成小标题，不设置这个LargeTitle就是大标题显示
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// 谁特么能整的明白这个？
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// tableView.contentInset = UIEdgeInsets(top: 20, left: 0, bottom: 0, right: 0)
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// 替代 contentInset 设置一个 header
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tableView.tableHeaderView = UIView(frame: CGRect(x: 0, y: 0, width: 0, height: 20))
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tableView.rx.setDelegate(self).disposed(by: rx.disposeBag)
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tableView.mj_footer = MJRefreshAutoFooter()
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tableView.refreshControl = UIRefreshControl()
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return tableView
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}()
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override func makeUI() {
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navigationItem.searchController = UISearchController(searchResultsController: nil)
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navigationItem.searchController?.obscuresBackgroundDuringPresentation = false
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navigationItem.searchController?.delegate = self
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navigationItem.setBarButtonItems(items: [deleteButton, groupButton], position: .right)
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self.view.addSubview(tableView)
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tableView.snp.makeConstraints { make in
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make.edges.equalToSuperview()
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}
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// 点击tab按钮，回到顶部
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Client.shared.currentTabBarController?
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.tabBarItemDidClick
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.filter { $0 == .messageHistory }
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.subscribe(onNext: { [weak self] _ in
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self?.scrollToTop()
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}).disposed(by: self.rx.disposeBag)
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// 打开APP时，历史消息列表距离上次刷新超过5分钟，则自动刷新一下
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var lastAutoRefreshdate = Date()
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NotificationCenter.default.rx
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.notification(UIApplication.willEnterForegroundNotification)
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.filter { _ in
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let now = Date()
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if now.timeIntervalSince1970 - lastAutoRefreshdate.timeIntervalSince1970 > 60 * 5 {
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lastAutoRefreshdate = now
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return true
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}
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return false
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}
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.subscribe(onNext: { [weak self] _ in
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self?.tableView.refreshControl?.sendActions(for: .valueChanged)
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}).disposed(by: rx.disposeBag)
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// 点击群组消息，展开群
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tableView.rx.itemSelected.subscribe(onNext: { [weak self] indexPath in
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guard let self else { return }
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if let cell = self.tableView.cellForRow(at: indexPath) as? MessageGroupTableViewCell {
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if !cell.isExpanded {
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UIView.animate(withDuration: 0.6, delay: 0, usingSpringWithDamping: 0.8, initialSpringVelocity: 0.2) {
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self.tableView.performBatchUpdates {
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cell.isExpanded = true
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}
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}
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if let groupName = cell.cellData?.groupName {
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self.expandedGroup.insert(groupName)
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}
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}
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}
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}).disposed(by: rx.disposeBag)
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}
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// tableView 数据源
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private lazy var dataSource = RxTableViewSectionedAnimatedDataSource<MessageSection>(
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animationConfiguration: AnimationConfiguration(
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insertAnimation: .none,
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reloadAnimation: .none,
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deleteAnimation: .left
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),
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configureCell: { _, tableView, _, item -> UITableViewCell in
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switch item {
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case .message(let message):
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guard let cell = tableView.dequeueReusableCell(withIdentifier: "\(MessageTableViewCell.self)") as? MessageTableViewCell else {
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return UITableViewCell()
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}
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cell.tapAction = { [weak self, weak cell] message, sourceView in
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guard let self, let cell else { return }
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self.alertMessage(message: message, sourceView: sourceView, sourceCell: cell)
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}
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cell.message = message
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return cell
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case .messageGroup(let title, let totalCount, let messages):
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guard let cell = tableView.dequeueReusableCell(withIdentifier: "\(MessageGroupTableViewCell.self)") as? MessageGroupTableViewCell else {
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return UITableViewCell()
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}
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cell.showLessAction = { [weak self, weak cell] in
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guard let self else { return }
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UIView.animate(withDuration: 0.6, delay: 0, usingSpringWithDamping: 0.8, initialSpringVelocity: 0.2) {
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self.tableView.performBatchUpdates {
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cell?.isExpanded = false
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}
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if let groupName = cell?.cellData?.groupName {
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self.expandedGroup.remove(groupName)
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}
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}
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}
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cell.showGroupMessageAction = { [weak self] group in
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let viewModel = MessageListViewModel(sourceType: .group(group))
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let controller = MessageListViewController(viewModel: viewModel)
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self?.navigationController?.pushViewController(controller, animated: true)
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}
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cell.clearAction = { [weak self, weak cell] in
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guard let self, let cell, let indexPath = self.tableView.indexPath(for: cell) else { return }
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self.tableView.dataSource?.tableView?(self.tableView, commit: .delete, forRowAt: indexPath)
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}
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cell.tapAction = { [weak self, weak cell] message, sourceView in
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guard let self, let cell else { return }
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self.alertMessage(message: message, sourceView: sourceView, sourceCell: cell)
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}
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cell.cellData = (title, totalCount, messages)
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cell.isExpanded = self.expandedGroup.contains(title)
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return cell
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}
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}, canEditRowAtIndexPath: { _, _ in
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true
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}
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)
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override func bindViewModel() {
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guard let groupBtn = groupButton.customView as? BKButton else {
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return
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}
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let output = viewModel.transform(
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input: MessageListViewModel.Input(
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refresh: tableView.refreshControl!.rx.controlEvent(.valueChanged).asDriver(),
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loadMore: tableView.mj_footer!.rx.refresh.asDriver(),
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itemDelete: tableView.rx.modelDeleted(MessageListCellItem.self).asDriver(),
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itemDeleteInGroup: itemDeleteInGroupRelay.asDriver(onErrorDriveWith: .empty()),
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delete: getBatchDeleteDriver(),
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groupToggleTap: groupBtn.rx.tap.asDriver(),
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searchText: navigationItem.searchController!.searchBar.rx.text.asObservable()
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))
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// tableView 刷新状态
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output.refreshAction
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.drive(tableView.rx.refreshAction)
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.disposed(by: rx.disposeBag)
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output.messages
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.drive(tableView.rx.items(dataSource: dataSource))
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.disposed(by: rx.disposeBag)
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// 选择群组
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output.type
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.drive(onNext: { [weak self] type in
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(self?.groupButton.customView as? UIButton)?.isSelected = type == .group
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}).disposed(by: rx.disposeBag)
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// 标题
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output.title
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.drive(self.navigationItem.rx.title).disposed(by: rx.disposeBag)
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// 数据库初始化出错错误提示
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output.errorAlert
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.drive(onNext: { [weak self] error in
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let alertController = UIAlertController(title: "Error", message: error, preferredStyle: .alert)
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alertController.addAction(UIAlertAction(title: NSLocalizedString("Copy2"), style: .default, handler: { _ in
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UIPasteboard.general.string = error
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}))
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alertController.addAction(UIAlertAction(title: NSLocalizedString("Cancel"), style: .cancel, handler: nil))
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self?.present(alertController, animated: true, completion: nil)
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}).disposed(by: rx.disposeBag)
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output.groupToggleButtonHidden
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.drive((groupButton.customView as! UIButton).rx.isHidden).disposed(by: rx.disposeBag)
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}
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private func getBatchDeleteDriver() -> Driver<MessageDeleteType> {
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guard let deleteBtn = deleteButton.customView as? BKButton else {
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return Driver.never()
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}
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return deleteBtn.rx
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.tap
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.flatMapLatest { _ -> PublishRelay<MessageDeleteType> in
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let relay = PublishRelay<MessageDeleteType>()
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func alert(_ type: MessageDeleteType) {
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let alertController = UIAlertController(title: nil, message: "\(NSLocalizedString("clearFrom"))\n\(type.string)", preferredStyle: .alert)
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alertController.addAction(UIAlertAction(title: NSLocalizedString("clear"), style: .destructive, handler: { _ in
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relay.accept(type)
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}))
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alertController.addAction(UIAlertAction(title: NSLocalizedString("Cancel"), style: .cancel, handler: nil))
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self.navigationController?.present(alertController, animated: true, completion: nil)
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}
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let alertController = UIAlertController(title: nil, message: NSLocalizedString("clearFrom"), preferredStyle: .actionSheet)
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alertController.addAction(UIAlertAction(title: NSLocalizedString("lastHour"), style: .default, handler: { _ in
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alert(.lastHour)
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}))
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alertController.addAction(UIAlertAction(title: NSLocalizedString("today"), style: .default, handler: { _ in
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alert(.today)
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}))
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alertController.addAction(UIAlertAction(title: NSLocalizedString("todayAndYesterday"), style: .default, handler: { _ in
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alert(.todayAndYesterday)
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}))
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alertController.addAction(UIAlertAction(title: NSLocalizedString("allTime"), style: .default, handler: { _ in
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alert(.allTime)
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}))
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alertController.addAction(UIAlertAction(title: NSLocalizedString("Cancel"), style: .cancel, handler: nil))
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if UIDevice.current.userInterfaceIdiom == .pad {
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alertController.modalPresentationStyle = .popover
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if #available(iOS 16.0, *) {
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alertController.popoverPresentationController?.sourceItem = self.deleteButton
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} else {
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alertController.popoverPresentationController?.barButtonItem = self.deleteButton
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}
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}
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self.navigationController?.present(alertController, animated: true, completion: nil)
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return relay
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}
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.asDriver(onErrorDriveWith: .empty())
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}
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private func alertMessage(message: MessageItemModel, sourceView: UIView, sourceCell: UITableViewCell) {
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let alertController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
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// 复制
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alertController.addAction(UIAlertAction(title: NSLocalizedString("Copy2"), style: .default, handler: { [weak self]
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(_: UIAlertAction) in
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UIPasteboard.general.string = message.attributedText?.string
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self?.showSnackbar(text: NSLocalizedString("Copy"))
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}))
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// 删除
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alertController.addAction(UIAlertAction(title: NSLocalizedString("removeMessage"), style: .destructive, handler: { [weak self]
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(_: UIAlertAction) in
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guard let self, let indexPath = self.tableView.indexPath(for: sourceCell) else { return }
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if sourceCell is MessageTableViewCell {
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// 单个消息，把cell删除
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self.tableView.dataSource?.tableView?(self.tableView, commit: .delete, forRowAt: indexPath)
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} else if sourceCell is MessageGroupTableViewCell {
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// 群组消息，只能删除群组中需删除的消息
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self.itemDeleteInGroupRelay.accept(message)
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}
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}))
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// 取消
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alertController.addAction(UIAlertAction(title: NSLocalizedString("Cancel"), style: .cancel, handler: { _ in }))
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if UIDevice.current.userInterfaceIdiom == .pad {
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alertController.popoverPresentationController?.sourceView = sourceView.superview
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alertController.popoverPresentationController?.sourceRect = sourceView.frame
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alertController.modalPresentationStyle = .popover
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}
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self.navigationController?.present(alertController, animated: true, completion: nil)
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}
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private func scrollToTop() {
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if self.tableView.visibleCells.count > 0 {
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self.tableView.scrollToRow(at: IndexPath(row: 0, section: 0), at: .top, animated: true)
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}
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}
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}
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extension MessageListViewController: UITableViewDelegate {
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func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
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let action = UIContextualAction(style: .destructive, title: NSLocalizedString("removeMessage")) { [weak self] _, _, actionPerformed in
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guard let self else { return }
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if self.tableView.cellForRow(at: indexPath) is MessageTableViewCell {
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// 单个消息直接删除，不弹出提示
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self.tableView.dataSource?.tableView?(self.tableView, commit: .delete, forRowAt: indexPath)
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actionPerformed(true)
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return
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}
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// 群组消息删除，弹出个确认提示
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let alertView = UIAlertController(title: nil, message: NSLocalizedString("removeNotice"), preferredStyle: .alert)
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alertView.addAction(UIAlertAction(title: NSLocalizedString("removeMessage"), style: .destructive, handler: { _ in
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self.tableView.dataSource?.tableView?(self.tableView, commit: .delete, forRowAt: indexPath)
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actionPerformed(true)
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}))
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alertView.addAction(UIAlertAction(title: NSLocalizedString("Cancel"), style: .cancel, handler: { _ in
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actionPerformed(false)
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}))
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self.present(alertView, animated: true, completion: nil)
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}
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let configuration = UISwipeActionsConfiguration(actions: [action])
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return configuration
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}
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}
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extension MessageListViewController: UISearchControllerDelegate {
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func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
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if self.navigationItem.searchController?.searchBar.isFirstResponder == true {
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self.navigationItem.searchController?.searchBar.resignFirstResponder()
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}
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}
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func willDismissSearchController(_ searchController: UISearchController) {
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if !searchController.searchBar.isFirstResponder {
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/*
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searchBar 不在焦点时，点击搜索框右边的取消按钮时，不会触发 searchBar.rx.text 更改事件
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searchBar.rx.text 将一直保留为最后的文本
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但我们预期是要更新为 nil 的，因为再次点击searchBar，searchBar.text 显示的是 nil
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可能对用户造成困惑，搜索框里没有输入任何keyword，但消息列表却被错误的keyword过滤了
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另外直接给 text 赋值，并不能触发 searchBar.rx.text，
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需要手动发送一下actions
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*/
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searchController.searchBar.searchTextField.text = nil
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searchController.searchBar.searchTextField.sendActions(for: .editingDidEnd)
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}
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}
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}
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