私聊的vm

yinmeng-ios/Base/ViewController/BaseTabBarViewController.swift

@@ -24,7 +24,7 @@ private extension BaseTabBarViewController {
 
 		let home: (BaseViewController, String, UIImage?, UIImage?) = (PlanetStarVC(), "", UIImage(named: "tabbar_icon_planet"), UIImage(named: "tabbar_icon_planet_sel"))
 
-		let message: (BaseViewController, String, UIImage?, UIImage?) = (ChatVC(), "",UIImage(named: "tabbar_icon_chat"), UIImage(named: "tabbar_icon_chat_sel"))
+		let message: (BaseViewController, String, UIImage?, UIImage?) = (ChatListVC(), "",UIImage(named: "tabbar_icon_chat"), UIImage(named: "tabbar_icon_chat_sel"))
 
 		let person: (BaseViewController, String, UIImage?, UIImage?) = (UserInfoVC(), "",UIImage(named: "tabbar_icon_user"), UIImage(named: "tabbar_icon_user_sel"))
 

yinmeng-ios/Extension/Date/Date+.swift

@@ -0,0 +1,110 @@
+//
+//  Date+.swift
+//  yinmeng-ios
+//
+//  Created by MaiMang on 2024/2/27.
+//
+
+import Foundation
+
+extension Date {
+
+	/// 获取当前时间戳
+	/// - Returns: 当前时间戳
+	static func getNowTimeStamp() -> Int {
+		let nowDate = Date.init()
+		//10位数时间戳
+		let interval = Int(nowDate.timeIntervalSince1970)
+		return interval
+	}
+
+	/// 获取当前时间字符串
+	/// - Returns: 当前时间戳
+	static func getNowTimeString(dateFormat: String) -> String {
+		let dateformatter = DateFormatter()
+		dateformatter.dateFormat = dateFormat
+		let nowDate = Date.init()
+		return dateformatter.string(from: nowDate)
+	}
+
+
+
+	/// 时间戳转换时间字符串
+	/// - Parameters:
+	///   - timeStamp: 时间戳
+	///   - dateFormat: 自定义日期格式（如：yyyy-MM-dd HH:mm:ss）
+	/// - Returns: 时间字符串
+	static func getTimeString(timeStamp: Int, dateFormat: String) -> String {
+		let date = Date(timeIntervalSince1970: TimeInterval.init(timeStamp))
+		let dateformatter = DateFormatter()
+		dateformatter.dateFormat = dateFormat
+		return dateformatter.string(from: date)
+	}
+
+
+	/// 日期转Date
+	/// - Parameters:
+	///   - timeString: 日期字符串
+	///   - dateFormat: 自定义日期格式（如：yyyy-MM-dd HH:mm:ss）
+	/// - Returns: Date
+	static func getDate(timeString: String, dateFormat: String) -> Date {
+		let dateformatter = DateFormatter()
+		dateformatter.dateFormat = dateFormat
+		let date = dateformatter.date(from: timeString) ?? Date()
+		return date
+	}
+
+	/// 日期转时间戳
+	/// - Parameters:
+	///   - timeString: 日期字符串
+	///   - dateFormat: 自定义日期格式（如：yyyy-MM-dd HH:mm:ss）
+	/// - Returns: 时间戳
+	static func getTimeStamp(timeString: String, dateFormat: String) -> Int {
+		let dateformatter = DateFormatter()
+		dateformatter.dateFormat = dateFormat
+		let date = self.getDate(timeString: timeString, dateFormat: dateFormat)
+		return Int(date.timeIntervalSince1970)
+	}
+
+
+	/// 时间戳转换时间date
+	/// - Parameters:
+	///   - timeStamp: 时间戳
+	/// - Returns: date
+	static func getDateWith(timeStamp: Int) -> Date {
+		let date = Date(timeIntervalSince1970: TimeInterval.init(timeStamp))
+		return date
+	}
+
+
+	/// 获取（年，月，日，时，分，秒）
+	/// - Returns: （年，月，日，时，分，秒）
+	func getTime() -> (String, String, String, String, String, String) {
+		let dateformatter = DateFormatter()
+		dateformatter.dateFormat = "yyyy"
+		let y = dateformatter.string(from: self)
+		dateformatter.dateFormat = "MM"
+		let mo = dateformatter.string(from: self)
+		dateformatter.dateFormat = "dd"
+		let d = dateformatter.string(from: self)
+		dateformatter.dateFormat = "HH"
+		let h = dateformatter.string(from: self)
+		dateformatter.dateFormat = "mm"
+		let m = dateformatter.string(from: self)
+		dateformatter.dateFormat = "ss"
+		let s = dateformatter.string(from: self)
+
+		return (y, mo, d, h, m, s)
+			}
+
+
+	/// 获取时间字符串
+	/// - Parameter dateFormat: 自定义日期格式（如：yyyy-MM-dd HH:mm:ss）
+	/// - Returns: 时间字符串
+	func getStringTime(dateFormat: String) -> String {
+		let dateformatter = DateFormatter()
+		dateformatter.dateFormat = dateFormat
+		return dateformatter.string(from: self)
+	}
+
+}

yinmeng-ios/Modules/Chat/ChatListVC.swift

@@ -0,0 +1,18 @@
+//
+//  ChatListVC.swift
+//  yinmeng-ios
+//
+//  Created by MaiMang on 2024/2/27.
+//  回话列表
+
+import UIKit
+
+class ChatListVC: BaseViewController {
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        // Do any additional setup after loading the view.
+    }
+
+}

yinmeng-ios/Modules/Chat/ChatVC.swift

@@ -3,27 +3,64 @@
 //  yinmeng-ios
 //
 //  Created by MaiMang on 2024/2/25.
-//
+//  回话详情
 
 import UIKit
-
+import NIMSDK
 class ChatVC: BaseViewController {
 
+	public init(session: NIMSession) {
+		vm = ChatViewModel(session: session)
+		super.init(nibName: nil, bundle: nil)
+//		vm.delegate = self
+//		NIMSDK.shared().mediaManager.add(self)
+	}
+	
+	required init?(coder: NSCoder) {
+		fatalError("init(coder:) has not been implemented")
+	}
+	
+	var vm:ChatViewModel
+
     override func viewDidLoad() {
         super.viewDidLoad()
 
 		view.backgroundColor = .orange
     }
-    
 
-    /*
-    // MARK: - Navigation
 
-    // In a storyboard-based application, you will often want to do a little preparation before navigation
-    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
-        // Get the new view controller using segue.destination.
-        // Pass the selected object to the new view controller.
-    }
-    */
+	private lazy var chatTableView: UITableView = {
+		let tableView = UITableView(frame: .zero, style: .plain)
+		tableView.delegate = self
+		tableView.dataSource = self
+		tableView.tableFooterView = UIView()
+		tableView.separatorStyle = .none
+		tableView.backgroundColor = .clear
+		if #available(iOS 11.0, *) {
+			tableView.contentInsetAdjustmentBehavior = .never
+		}
+		return tableView
+	}()
 
 }
+
+extension ChatVC: UITableViewDelegate, UITableViewDataSource {
+	public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+		return vm.messageObjects.count
+	}
+
+	public func tableView(_ tableView: UITableView,
+						  cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+		return UITableViewCell()
+	}
+
+	public func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+
+	}
+
+	public func tableView(_ tableView: UITableView,
+						  heightForRowAt indexPath: IndexPath) -> CGFloat {
+		let m = vm.messageObjects[safe:indexPath.row]
+		return CGFloat(m?.height ?? 0)
+	}
+}

yinmeng-ios/Modules/Chat/Model/ChatBaseObject.swift

@@ -0,0 +1,105 @@
+//
+//  ChatBaseObject.swift
+//  yinmeng-ios
+//
+//  Created by MaiMang on 2024/2/27.
+//
+
+import Foundation
+import NIMSDK
+
+public enum SessionType: Int {
+	case text = 1
+	case image
+	case time
+}
+
+
+public protocol ChatSessionProtocol: NSObjectProtocol {
+	var msg:NIMMessage? {get set}
+	// 气泡区域的大小 不包含气泡上下到cell上下的边距
+	var contentSize: CGSize { get set }
+	///高度
+	var height: Float { get set }
+	///用户的id
+	var userID: String? { get set }
+    ///用户昵称
+	var name: String? { get set }
+	///头像
+	var avatar: String? { get set }
+    ///消息的类型
+	var type:SessionType{get set}
+
+	init(msg: NIMMessage?)
+}
+
+
+open class ChatBaseObject:NSObject, ChatSessionProtocol {
+
+	public var msg: NIMMessage?
+	public var contentSize: CGSize
+	public var height: Float
+	public var userID: String?
+	public var name: String?
+	public var avatar: String?
+	public var type: SessionType = .text
+
+	public required init(msg: NIMMessage?) {
+		self.msg = msg
+		if let uid = msg?.from {
+			self.userID = uid
+			let user = NIMSDK.shared().userManager.userInfo(uid)
+			self.avatar = user?.userInfo?.avatarUrl
+			self.name = user?.userInfo?.nickName
+		}
+		contentSize = CGSize(width: 32.0, height: ChatUIConfig.layout.bubbleMinHeight)
+		height =  Float(ChatUIConfig.layout.bubbleMinHeight + ChatUIConfig.layout.margin)
+	}
+}
+
+
+class ChatTextObject: ChatBaseObject {
+	public var attribute: NSMutableAttributedString?
+	required init(msg: NIMMessage?) {
+		super.init(msg: msg)
+		type = .text
+
+		let style = NSMutableParagraphStyle()
+		style.lineSpacing = 6
+		let attributeStr = NSMutableAttributedString(string: msg?.text ?? "", attributes: [NSAttributedString.Key.font: ChatUIConfig.ui.messageFont, NSAttributedString.Key.paragraphStyle: style])
+		attribute = attributeStr
+		let textSize = ChatAttributeTool.boundingRect(attribute: attributeStr, font: ChatUIConfig.ui.messageFont, maxSize: CGSize(width: ChatUIConfig.layout.contentMaxWidth, height: CGFloat.greatestFiniteMagnitude))
+
+		var h = ChatUIConfig.layout.bubbleMinHeight
+		h = textSize.height + 1 + ChatUIConfig.layout.textInsets.top + ChatUIConfig.layout.textInsets.bottom
+		if h < 36 {
+			h = 36
+		}
+		contentSize = CGSize(width: textSize.width + ChatUIConfig.layout.textInsets.left + ChatUIConfig.layout.textInsets.right + 1, height: h)
+
+		height = Float(contentSize.height + ChatUIConfig.layout.cellContentInsets.bottom + ChatUIConfig.layout.cellContentInsets.top)
+	}
+}
+
+class ChatTimeObject: ChatBaseObject {
+	var text:String = ""
+	public var attribute: NSMutableAttributedString?
+	required init(msg: NIMMessage?) {
+		super.init(msg: msg)
+		type = .time
+		let style = NSMutableParagraphStyle()
+		style.lineSpacing = 6
+		let attributeStr = NSMutableAttributedString(string: msg?.text ?? "", attributes: [NSAttributedString.Key.font: ChatUIConfig.ui.messageFont, NSAttributedString.Key.paragraphStyle: style])
+		attribute = attributeStr
+		let textSize = ChatAttributeTool.boundingRect(attribute: attributeStr, font: ChatUIConfig.ui.messageFont, maxSize: CGSize(width: ChatUIConfig.layout.contentMaxWidth, height: CGFloat.greatestFiniteMagnitude))
+
+		var h = ChatUIConfig.layout.bubbleMinHeight
+		h = textSize.height + 1 + ChatUIConfig.layout.textInsets.top + ChatUIConfig.layout.textInsets.bottom
+		if h < 36 {
+			h = 36
+		}
+		contentSize = CGSize(width: textSize.width + ChatUIConfig.layout.textInsets.left + ChatUIConfig.layout.textInsets.right + 1, height: h)
+
+		height = Float(contentSize.height + ChatUIConfig.layout.cellContentInsets.bottom + ChatUIConfig.layout.cellContentInsets.top)
+	}
+}

yinmeng-ios/Modules/Chat/Model/ChatUIConfig.swift

@@ -0,0 +1,62 @@
+//
+//  ChatUIConfig.swift
+//  yinmeng-ios
+//
+//  Created by MaiMang on 2024/2/27.
+//
+
+import Foundation
+
+public class ChatUIConfig {
+	/// UI配置信息
+	public static let ui = UI()
+
+	/// 布局配置
+	public static let layout = Layout()
+
+	public class UI {
+
+		public enum AvatarType {
+			case cycle // 圆形
+			case rectangle(CGFloat) // 矩形
+		}
+
+		/// 头像类型
+		public var avatarType: AvatarType = .cycle
+		/// 头像占位图
+		public var avatarPlaceholderImage = UIImage()
+		/// 时间/通知颜色
+		public var tipsColor = UIColor.lightGray
+		/// 时间/通知字体大小
+		public var tipsFont = UIFont.systemFont(ofSize: 12)
+		/// 聊天字体大小(文本类型)
+		public var messageFont = UIFont.systemFont(ofSize: 14)
+		/// 群聊消息昵称字体
+		public var messageNameFont = UIFont.systemFont(ofSize: 13)
+		/// 群聊消息昵称字体颜色
+		public var messageNameColor = UIColor(red: 5/255.0, green: 19/255.0, blue: 47/255.0, alpha: 1)
+		/// 左侧聊天字体颜色(文本类型)
+		public var leftMessageColor = UIColor.black
+		/// 右侧聊天字体颜色(文本类型)
+		public var rightMessageColor = UIColor.black
+
+	}
+
+	public class Layout {
+		/// 头像大小
+		public var avatarSize: CGFloat = 34.0
+		/// 聊天cell整体内容距离
+		public var cellContentInsets = UIEdgeInsets(top: 8, left: 16, bottom: 8, right: 16)
+		/// 文本消息距离
+		public var textInsets = UIEdgeInsets(top: 10, left: 15, bottom: 10, right: 15)
+		/// 内容最大宽度
+		public var contentMaxWidth: CGFloat = (UIScreen.main.bounds.size.width - 170)
+		/// 图片最大宽高
+		public var pictureMaxSize = CGSize(width: 150, height: 150)
+		/// 单行气泡高度
+		public var bubbleMinHeight: CGFloat = 40.0
+		/// 控件之间的间距
+		public var margin: CGFloat = 8.0
+	}
+}
+

yinmeng-ios/Modules/Chat/Tool/ChatAttributeTool.swift

@@ -0,0 +1,28 @@
+//
+//  ChatAttributeTool.swift
+//  yinmeng-ios
+//
+//  Created by MaiMang on 2024/2/27.
+//
+
+import Foundation
+
+
+public class ChatAttributeTool {
+	// 计算富文本size
+	public class func boundingRect(attribute: NSAttributedString, font: UIFont, maxSize: CGSize) -> CGSize {
+		if attribute.length == 0 {
+			return CGSize.zero
+		}
+		var sizeRec = attribute.boundingRect(
+			with: maxSize,
+			options: [.usesLineFragmentOrigin, .usesFontLeading],
+			context: nil
+		).size
+
+		if attribute.length > 0, sizeRec.width == 0, sizeRec.height == 0 {
+			sizeRec = maxSize
+		}
+		return CGSize(width: ceil(sizeRec.width), height: ceil(sizeRec.height))
+	}
+}

yinmeng-ios/Modules/Chat/VM/ChatViewModel.swift

@@ -0,0 +1,666 @@
+//
+//  ChatViewModel.swift
+//  yinmeng-ios
+//
+//  Created by MaiMang on 2024/2/27.
+//
+
+import Foundation
+import NIMSDK
+
+public typealias ChatProviCompletion = ((Error?, [NIMMessage]?) -> ())
+
+
+public enum LoadMessageDirection: Int {
+	case old = 1
+	case new
+}
+
+public protocol ChatViewModelDelegate: NSObjectProtocol {
+
+
+	func didAppend(_ message: NIMMessage)
+
+	func onDeleteMessage(_ message: NIMMessage, atIndexs: [IndexPath])
+
+	func send(_ message: NIMMessage, didCompleteWithError error: Error?)
+	func send(_ message: NIMMessage, progress: Float)
+	func onRecvMessages(_ messages: [NIMMessage])
+	func willSend(_ message: NIMMessage)
+}
+
+
+public class ChatViewModel: NSObject,
+							NIMConversationManagerDelegate, NIMSystemNotificationManagerDelegate {
+	private var userInfo = [String: NIMUser]()
+	public let messagPageNum: UInt = 100
+
+	public var session: NIMSession
+	///消息的条数
+	public var messageObjects: [ChatSessionProtocol] = .init()
+	// 下拉时间戳
+	private var oldMsg: NIMMessage?
+	// 上拉时间戳
+	private var newMsg: NIMMessage?
+	// 可信时间戳
+	public var credibleTimestamp: TimeInterval = 0
+	public var anchor: NIMMessage?
+
+	internal var isHistoryAnchorChat = false
+
+	public weak var delegate: ChatViewModelDelegate?
+
+	private func addMessageListener() {
+		NIMSDK.shared().chatManager.add(self)
+		NIMSDK.shared().conversationManager.add(self)
+		NIMSDK.shared().systemNotificationManager.add(self)
+	}
+
+	init(session: NIMSession) {
+		self.session = session
+		super.init()
+		addMessageListener()
+	}
+
+	/// 发送消息
+	/// - Parameters:
+	///   - message: 消息对象
+	///   - completion: 发送完成后的回调，这里的回调完成只表示当前这个函数调用完成，需要后续的回调才能判断消息是否已经发送至服务器
+	public func sendMessage(message: NIMMessage, _ completion: @escaping (Error?) -> Void) {
+		NIMSDK.shared().chatManager.send(message, to: session, completion: completion)
+	}
+
+	////发送语音消息
+	public func sendAudioMessage(filePath: String, _ completion: @escaping (Error?) -> Void) {
+		let audioObject = NIMAudioObject(sourcePath: filePath)
+		let audioMessage = NIMMessage()
+		audioMessage.messageObject = audioObject
+		audioMessage.apnsContent = "发来了一段语音"
+		let setting = NIMMessageSetting()
+		setting.teamReceiptEnabled = false
+		audioMessage.setting = setting
+		sendMessage(message: audioMessage, completion)
+	}
+
+	///发送图片
+	public func sendImageMessage(image: UIImage, _ completion: @escaping (Error?) -> Void) {
+		let imageMessage = NIMMessage()
+		let imageOpt = NIMImageOption()
+		imageOpt.compressQuality = 0.8
+		let imageObject = NIMImageObject(image: image)
+		imageObject.option = imageOpt
+		imageMessage.messageObject = imageObject
+		imageMessage.apnsContent = "发送了一张图片"
+		sendMessage(message: imageMessage, completion)
+	}
+
+	public func sendTextMessage(text: String, _ completion: @escaping (Error?) -> Void) {
+		if text.count <= 0 {
+			return
+		}
+		let textMessage = NIMMessage()
+		textMessage.text = text
+		sendMessage(message: textMessage, completion)
+	}
+
+	// 查询远端历史消息
+	public func reloadRemoteHistoryMessage(direction: LoadMessageDirection, updateCredible: Bool,
+										option: NIMHistoryMessageSearchOption,
+										_ completion: @escaping (Error?, NSInteger,
+																 [ChatSessionProtocol]?) -> Void) {
+		weak var weakSelf = self
+		NIMSDK.shared().conversationManager.fetchMessageHistory(session, option: option) { error, messages in
+			if error == nil {
+				if let messageArray = messages, messageArray.count > 0 {
+					if direction == .old {
+						weakSelf?.oldMsg = messageArray.last
+					} else {
+						weakSelf?.newMsg = messageArray.first
+					}
+					for msg in messageArray {
+						if let model = weakSelf?.modelTransformMessage(message: msg) {
+							weakSelf?.addTimeMessage(msg)
+							weakSelf?.messageObjects.insert(model, at: 0)
+						}
+					}
+
+					if let updateMessage = messageArray.first, updateCredible {
+						// 更新可信时间戳
+						weakSelf?.credibleTimestamp = updateMessage.timestamp
+					}
+					completion(error, messageArray.count, weakSelf?.messageObjects)
+				} else {
+					completion(error, 0, weakSelf?.messageObjects)
+
+				}
+
+			} else {
+				completion(error, 0, nil)
+			}
+		}
+	}
+
+	// 下拉获取历史消息
+	public func dropDownRemoteRefresh(_ completion: @escaping (Error?, NSInteger, [ChatSessionProtocol]?)
+									  -> Void) {
+		let isCredible = isMessageCredible(message: oldMsg ?? NIMMessage())
+		if isCredible { // 继续拉去本地消息
+			getMoreMessageHistory(completion)
+		} else {
+			let option = NIMHistoryMessageSearchOption()
+			option.startTime = 0
+			option.endTime = oldMsg?.timestamp ?? 0
+			option.limit = messagPageNum
+			option.sync = true
+
+			// 不可信拉去远端消息
+			reloadRemoteHistoryMessage(
+				direction: .old,
+				updateCredible: false,
+				option: option,
+				completion
+			)
+		}
+	}
+
+
+	public func queryRoamMsgHasMoreTime_v2(_ completion: @escaping (Error?, NSInteger, NSInteger,
+																	[ChatSessionProtocol]?, Int) -> Void) {
+		weak var weakSelf = self
+		NIMSDK.shared().conversationManager.incompleteSessionInfo(by: session) { error, sessionInfos in
+			if error == nil {
+				let sessionInfo = sessionInfos?.first
+				// 记录可信时间戳
+				weakSelf?.credibleTimestamp = sessionInfo?.timestamp ?? 0
+				weakSelf?.getMessageHistory(self.newMsg) { error, value, models in
+					completion(error, value, 0, models, 0)
+				}
+			}
+		}
+	}
+
+	// 查询本地历史消息
+	public func getMessageHistory(_ message: NIMMessage?,
+								  _ completion: @escaping (Error?, NSInteger, [ChatSessionProtocol]?)
+								  -> Void) {
+		NIMSDK.shared().conversationManager.messages(in: session, message: message, limit: Int(messagPageNum), completion: result(completion))
+		func result(_ completion: @escaping (Error?, NSInteger, [ChatSessionProtocol]?) -> ()) -> ChatProviCompletion {
+			return { [weak self] error, messages in
+				if let messageArray = messages, messageArray.count > 0 {
+					self?.oldMsg = messageArray.first
+					for msg in messageArray {
+						if let model = self?.modelTransformMessage(message: msg) {
+							self?.addTimeMessage(msg)
+							self?.messageObjects.append(model)
+						}
+					}
+
+					completion(error, messageArray.count, self?.messageObjects)
+					self?.markRead(messages: messageArray) { error in
+
+					}
+
+				} else {
+					completion(error, 0, self?.messageObjects)
+				}
+			}
+		}
+	}
+
+
+	// 查询更多本地历史消息
+	public func getMoreMessageHistory(_ completion: @escaping (Error?, NSInteger, [ChatSessionProtocol]?)
+									  -> Void) {
+		let messageParam = oldMsg ?? newMsg
+		weak var weakSelf = self
+		NIMSDK.shared().conversationManager.messages(in: session, message: messageParam, limit: Int(messagPageNum)) { error, messages in
+			if let messageArray = messages, messageArray.count > 0 {
+				weakSelf?.oldMsg = messageArray.first
+
+				// 如果可信就使用本次请求数据，如果不可信就去远端拉去数据，并更新可信时间戳
+				let isCredible = weakSelf?
+					.isMessageCredible(message: messageArray.first ?? NIMMessage())
+				if let isTrust = isCredible, isTrust {
+					for msg in messageArray.reversed() {
+						if let model = weakSelf?.modelTransformMessage(message: msg) {
+							weakSelf?.addTimeMessage(msg)
+							weakSelf?.messageObjects.insert(model, at: 0)
+						}
+					}
+					completion(error, messageArray.count, weakSelf?.messageObjects)
+				} else {
+					let option = NIMHistoryMessageSearchOption()
+					option.startTime = 0
+					option.endTime = weakSelf?.oldMsg?.timestamp ?? 0
+					option.limit = weakSelf?.messagPageNum ?? 100
+					option.sync = true
+					weakSelf?.reloadRemoteHistoryMessage(
+						direction: .old,
+						updateCredible: true,
+						option: option,
+						completion
+					)
+				}
+
+				weakSelf?.markRead(messages: messageArray) { error in
+
+				}
+
+			} else {
+				if let messageArray = messages, messageArray.isEmpty,
+				   weakSelf?.credibleTimestamp ?? 0 > 0 {
+					// 如果远端拉倒了信息 就去更新可信时间戳，拉不到就不更新。
+					let option = NIMHistoryMessageSearchOption()
+					option.startTime = 0
+					option.endTime = weakSelf?.oldMsg?.timestamp ?? 0
+					option.limit = weakSelf?.messagPageNum ?? 100
+					weakSelf?.reloadRemoteHistoryMessage(
+						direction: .old,
+						updateCredible: true,
+						option: option,
+						completion
+					)
+				} else {
+					completion(error, 0, weakSelf?.messageObjects)
+				}
+			}
+		}
+	}
+
+
+
+	// 搜索历史记录查询的本地消息
+	public func searchMessageHistory(direction: LoadMessageDirection, startTime: TimeInterval,
+									 endTime: TimeInterval,
+									 _ completion: @escaping (Error?, NSInteger, [ChatSessionProtocol]?)
+									 -> Void) {
+		let option = NIMMessageSearchOption()
+		option.startTime = startTime
+		option.endTime = endTime
+		option.order = .asc
+		option.limit = messagPageNum
+		NIMSDK.shared().conversationManager.searchMessages(session, option: option) { [weak self] error, messages in
+			if error == nil {
+				if let messageArray = messages, messageArray.count > 0 {
+					var newMessages = [NIMMessage]()
+					for msg in messageArray {
+						newMessages.append(msg)
+						if let model = self?.modelTransformMessage(message: msg) {
+							self?.addTimeMessage(msg)
+							self?.messageObjects.append(model)
+						}
+					}
+					if direction == .old {
+						self?.oldMsg = newMessages.first
+					} else {
+						self?.newMsg = newMessages.last
+					}
+					completion(error, newMessages.count, self?.messageObjects)
+				} else {
+					completion(error, 0, self?.messageObjects)
+				}
+			} else {
+				completion(error, 0, nil)
+			}
+		}
+	}
+
+	// 判断消息是否可信
+	public func isMessageCredible(message: NIMMessage) -> Bool {
+		return credibleTimestamp <= 0 || message.timestamp >= credibleTimestamp
+	}
+
+	public func markRead(messages: [NIMMessage], _ completion: @escaping (Error?) -> Void) {
+		NIMSDK.shared().conversationManager.markAllMessagesRead(in: session) { error in
+
+		}
+	}
+
+
+	@discardableResult
+	public func resendMessage(message: NIMMessage) -> Error? {
+		var e: Error? = nil
+		do {
+			try NIMSDK.shared().chatManager.resend(message)
+		} catch {
+			e = error
+		}
+		return e
+	}
+
+	public func getUserInfo(userId: String) -> NIMUser? {
+		return NIMSDK.shared().userManager.userInfo(userId)
+	}
+
+	public func getTeamMember(userId: String, teamId: String) -> NIMTeamMember? {
+		//    return repo.getTeamMemberList(userId: userId, teamId: teamId)
+		return nil
+	}
+
+	public func deleteMessage(message: NIMMessage) {
+		NIMSDK.shared().conversationManager.delete(message)
+		deleteMessageUpdateUI(message)
+	}
+
+	//    MARK: collection
+
+	func addColletion(_ message: NIMMessage,
+					  completion: @escaping (NSError?, NIMCollectInfo?) -> Void) {
+		let param = NIMAddCollectParams()
+		var string: String?
+		if message.messageType == .text {
+			string = message.text
+			param.type = 1024
+		} else {
+			switch message.messageType {
+			case .audio:
+				if let obj = message.messageObject as? NIMAudioObject {
+					string = obj.url
+				}
+				param.type = message.messageType.rawValue
+			case .image:
+				if let obj = message.messageObject as? NIMImageObject {
+					string = obj.url
+				}
+				param.type = message.messageType.rawValue
+			case .video:
+				if let obj = message.messageObject as? NIMVideoObject {
+					string = obj.url
+				}
+				param.type = message.messageType.rawValue
+			default:
+				param.type = 0
+			}
+			param.data = string ?? ""
+		}
+		param.uniqueId = message.serverID
+		//    repo.collectMessage(param, completion)
+	}
+
+	//    MARK: revoke
+
+
+	// history message insert message at first of messages, send message add last of messages
+	private func addTimeMessage(_ message: NIMMessage) {
+		let lastTs = messageObjects.last?.msg?.timestamp ?? 0.0
+		let curTs = message.timestamp
+		let dur = curTs - lastTs
+		print("curTs:\(curTs) lastTs:\(lastTs)")
+		if (dur / 60) > 5 {
+			messageObjects.append(timeModel(message))
+		}
+	}
+
+	private func ddTimeForHistoryMessage(_ message: NIMMessage) {
+		let firstTs = messageObjects.first?.msg?.timestamp ?? 0.0
+		let curTs = message.timestamp
+		let dur = firstTs - curTs
+		print("HistorycurTs:\(curTs) firstTs:\(firstTs)")
+
+		if (dur / 60) > 5 {
+			messageObjects.insert(timeModel(message), at: 0)
+		}
+	}
+
+	private func timeModel(_ message: NIMMessage) -> ChatSessionProtocol {
+		let timeMsg = NIMMessage()
+		timeMsg.timestamp = message.timestamp
+		let model = ChatTimeObject(msg: timeMsg)
+		model.type = .time
+		model.text =  "2024-2-28"
+		return model
+	}
+
+
+	private func modelTransformMessage(message: NIMMessage) -> ChatSessionProtocol? {
+
+		var model: ChatSessionProtocol
+			switch message.messageType {
+			case .text:
+				model = ChatTextObject(msg: message)
+			default:
+				return nil
+				// 未识别的消息类型，默认为文本消息类型，text为未知消息
+				//            message.text = "未知消息"
+				//            model = MAIMessageContentModel(message: message)
+			}
+
+		if let uid = message.from {
+			model.userID = uid
+			let user = getUserInfo(userId: uid)
+			var fullName = uid
+			if let nickName = user?.userInfo?.nickName {
+				fullName = nickName
+			}
+			model.avatar = user?.userInfo?.avatarUrl
+			if session.sessionType == .team {
+				// team
+				let teamMember = getTeamMember(userId: uid, teamId: session.sessionId)
+				if let teamNickname = teamMember?.nickname {
+					fullName = teamNickname
+				}
+			}
+			if let alias = user?.alias {
+				fullName = alias
+			}
+			model.name = fullName
+		}
+		return model
+	}
+
+
+	func deleteMessageUpdateUI(_ message: NIMMessage) {
+		var index = -1
+		for (i, model) in messageObjects.enumerated() {
+			if model.msg?.serverID == message.serverID {
+				index = i
+				break
+			}
+		}
+		var indexs = [IndexPath]()
+		if index >= 0 {
+			//            remove time tip
+			let last = index - 1
+//			if last >= 0, let timeModel = messages[last] as? MAIMessageTipsModel,
+//			   timeModel.type == .time {
+//				messageObjects.removeSubrange(last ... index)
+//				indexs.append(IndexPath(row: last, section: 0))
+//				indexs.append(IndexPath(row: index, section: 0))
+//			} else {
+				messageObjects.remove(at: index)
+				indexs.append(IndexPath(row: index, section: 0))
+//			}
+		}
+		delegate?.onDeleteMessage(message, atIndexs: indexs)
+	}
+
+	private func getUserInfo(_ userId: String, _ completion: @escaping (NIMUser?, NSError?) -> Void) {
+		if let user = userInfo[userId] {
+			completion(user, nil)
+		}
+		if let user = getUserInfo(userId: userId) {
+			userInfo[userId] = user
+			completion(user, nil)
+		}
+	}
+
+	//    获取展示的用户名字，p2p： 备注》昵称>ID  team: 备注〉群昵称》 昵称〉 ID
+	private func getShowName(userId: String, teamId: String?) -> String {
+		let user = getUserInfo(userId: userId)
+		var fullName = userId
+		if let nickName = user?.userInfo?.nickName {
+			fullName = nickName
+		}
+		//        model.avatar = user?.userInfo?.thumbAvatarUrl
+		if let tID = teamId, session.sessionType == .team {
+			// team
+			let teamMember = getTeamMember(userId: userId, teamId: tID)
+			if let teamNickname = teamMember?.nickname {
+				fullName = teamNickname
+			}
+		}
+		if let alias = user?.alias {
+			fullName = alias
+		}
+		return fullName
+	}
+
+	public func fetchMessageAttachment(_ message: NIMMessage,
+									   _ completion: @escaping (Error?) -> Void) {
+		do {
+			try NIMSDK.shared().chatManager.fetchMessageAttachment(message)
+		} catch let error {
+			completion(error)
+		}
+	}
+
+	public func downLoad(_ urlString: String, _ filePath: String, _ progress: NIMHttpProgressBlock?,
+						 _ completion: NIMDownloadCompleteBlock?) {
+		NIMSDK.shared().resourceManager.download(urlString, filepath: filePath, progress: progress, completion: completion)
+	}
+
+	public func getUrls() -> [String] {
+		var urls = [String]()
+		messageObjects.forEach { model in
+			if model.type == .image, let message = model.msg?.messageObject as? NIMImageObject {
+				if let url = message.url {
+					urls.append(url)
+				} else {
+					if let path = message.path, FileManager.default.fileExists(atPath: path) {
+						urls.append(path)
+					}
+				}
+			}
+		}
+		return urls
+	}
+
+
+
+	public func sendInputTypingState() {
+		if session.sessionType == .P2P {
+			setTypingCustom(1)
+		}
+	}
+
+	public func sendInputTypingEndState() {
+		if session.sessionType == .P2P {
+			setTypingCustom(0)
+		}
+	}
+
+	func setTypingCustom(_ typing: Int) {
+		let message = NIMMessage()
+		if message.setting == nil {
+			message.setting = NIMMessageSetting()
+		}
+		message.setting?.apnsEnabled = false
+		message.setting?.shouldBeCounted = false
+		let noti =
+		NIMCustomSystemNotification(content: getJSONStringFromDictionary(["typing": typing]))
+
+		NIMSDK.shared().systemNotificationManager.sendCustomNotification(noti, to: session)
+	}
+
+	public func getHandSetEnable() -> Bool {
+		return false
+		//    return repo.getHandsetMode()
+	}
+
+	public func getMessageRead() -> Bool {
+		return  NIMSDK.shared().conversationManager.allUnreadCount() > 0
+	}
+
+	//    MARK: NIMConversationManagerDelegate
+
+	private func getJSONStringFromDictionary(_ dictionary: [String: Any]) -> String {
+	  if !JSONSerialization.isValidJSONObject(dictionary) {
+		print("not parse to json string")
+		return ""
+	  }
+	  if let data = try? JSONSerialization.data(withJSONObject: dictionary, options: []),
+		 let JSONString = String(data: data, encoding: .utf8) {
+		return JSONString
+	  }
+	  return ""
+	}
+
+	private func getDictionaryFromJSONString(_ jsonString: String) -> NSDictionary? {
+	  if let jsonData = jsonString.data(using: .utf8),
+		 let dict = try? JSONSerialization.jsonObject(
+		   with: jsonData,
+		   options: .mutableContainers
+		 ) as? NSDictionary {
+		return dict
+	  }
+	  return nil
+	}
+
+	deinit {
+		print("deinit")
+	}
+}
+
+
+extension ChatViewModel: NIMChatManagerDelegate {
+	//    MARK: NIMChatManagerDelegate
+	public func send(_ message: NIMMessage, didCompleteWithError error: Error?) {
+		for (i, msg) in messageObjects.enumerated() {
+			if message.messageId == msg.msg?.messageId {
+				messageObjects[i].msg = message
+				break
+			}
+		}
+		delegate?.send(message, didCompleteWithError: error)
+	}
+
+	// 收到消息
+	public func onRecvMessages(_ messages: [NIMMessage]) {
+		for msg in messages {
+			if msg.session?.sessionId == session.sessionId {
+				if let model = modelTransformMessage(message: msg) {
+					newMsg = msg
+					addTimeMessage(msg)
+					self.messageObjects.append(model)
+				}
+			}
+		}
+		delegate?.onRecvMessages(messages)
+	}
+
+	public func willSend(_ message: NIMMessage) {
+		if message.session?.sessionId != session.sessionId {
+			return
+		}
+		guard let model = modelTransformMessage(message: message) else { return }
+
+		if newMsg == nil {
+			newMsg = message
+		}
+
+		var isResend = false
+		for (i, msg) in messageObjects.enumerated() {
+			if message.messageId == msg.msg?.messageId {
+				messageObjects[i].msg = message
+				isResend = true
+				break
+			}
+		}
+
+		if !isResend {
+			addTimeMessage(message)
+			messageObjects.append(model)
+		}
+		delegate?.didAppend(message)
+
+	}
+
+	public func onReceive(_ notification: NIMCustomSystemNotification) {
+
+	}
+
+	public func send(_ message: NIMMessage, progress: Float) {
+		delegate?.send(message, progress: progress)
+	}
+
+}

yinmeng-ios/Modules/Chat/View/ChatBaseCell.swift

@@ -0,0 +1,78 @@
+//
+//  ChatBaseCell.swift
+//  yinmeng-ios
+//
+//  Created by MaiMang on 2024/2/27.
+//
+
+import UIKit
+
+protocol ChatBaseCellProtocol: NSObjectProtocol {
+	func cell(_ cell: ChatBaseCell, didTapAvatarAt model: ChatBaseObject)
+}
+
+class ChatBaseCell: UITableViewCell {
+	weak var delegate: ChatBaseCellProtocol?
+	var model:ChatBaseObject? {
+		didSet {
+			guard let _ = model else {return}
+            layoutMessageCell()
+		}
+	}
+	/// 提供子类调用
+	open func layoutMessageCell() { }
+
+	/// 执行加载动画
+	open func activityStartAnimating() {
+		guard let sendType = model?.type, sendType.rawValue == 0 else {
+			return
+		}
+		guard let sendDate = model?.msg?.timestamp as? Int else {
+			return
+		}
+
+		let nowDate = Date.getNowTimeStamp()
+		if ((nowDate - sendDate) <= 1) {
+			self.activityIndicatorView.isHidden = false
+			self.activityIndicatorView.startAnimating()
+			DispatchQueue.main.asyncAfter(deadline: .now() + 1.25) {
+				self.activityIndicatorView.startAnimating()
+				self.activityIndicatorView.isHidden = true
+			}
+		}
+	}
+
+	override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
+		super.init(style: style, reuseIdentifier: reuseIdentifier)
+		selectionStyle = .none
+		backgroundColor = .clear
+		contentView.addSubview(avatarImgView)
+		contentView.addSubview(bubbleView)
+		contentView.addSubview(activityIndicatorView)
+	}
+	
+	required init?(coder: NSCoder) {
+		fatalError("init(coder:) has not been implemented")
+	}
+
+
+	 lazy var avatarImgView: UIImageView = {
+		let imageView = UIImageView()
+		imageView.isUserInteractionEnabled = true
+		imageView.layer.masksToBounds = true
+		imageView.contentMode = .scaleAspectFill
+		return imageView
+	}()
+
+	lazy var bubbleView: UIImageView = {
+		let imageView = UIImageView()
+		return imageView
+	}()
+
+	lazy var activityIndicatorView: UIActivityIndicatorView = {
+		let activityView = UIActivityIndicatorView(style: UIActivityIndicatorView.Style.medium)
+		activityView.backgroundColor = .clear
+		activityView.isHidden = true
+		return activityView
+	}()
+}

yinmeng-ios/Modules/Chat/View/ChatTextCell.swift

@@ -0,0 +1,117 @@
+//
+//  ChatTextCell.swift
+//  yinmeng-ios
+//
+//  Created by MaiMang on 2024/2/27.
+//
+
+import UIKit
+import SnapKit
+class ChatTextCell: ChatBaseCell {
+
+	private lazy var textLb: UILabel = {
+		let label = UILabel()
+		label.translatesAutoresizingMaskIntoConstraints = false
+		label.isEnabled = false
+		label.numberOfLines = 0
+		return label
+	}()
+
+	override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
+		super.init(style: style, reuseIdentifier: reuseIdentifier)
+	}
+
+	func initSubview() {
+		bubbleView.addSubview(textLb)
+
+		avatarImgView.snp.remakeConstraints { (make) in
+			make.size.equalTo(ChatUIConfig.layout.avatarSize)
+			make.left.equalToSuperview().offset(10)
+			make.top.equalTo(contentView).offset(10)
+		}
+
+		bubbleView.snp.remakeConstraints { (make) in
+			make.top.equalTo(contentView.snp.top).offset(2)
+			make.bottom.equalTo(textLb.snp.bottom).offset(2)
+			make.left.equalTo(avatarImgView.snp.right)
+			make.width.equalTo(ChatUIConfig.layout.contentMaxWidth)
+			make.height.equalTo(textLb).offset(26)
+		}
+
+		textLb.snp.remakeConstraints { (make) in
+			make.top.equalTo(bubbleView).offset(ChatUIConfig.layout.textInsets.top);
+			make.left.equalTo(bubbleView).offset(ChatUIConfig.layout.textInsets.left);
+			make.right.equalTo(bubbleView).offset(-ChatUIConfig.layout.textInsets.right);
+		}
+
+		activityIndicatorView.snp.remakeConstraints { (make) in
+			make.centerY.equalTo(bubbleView)
+			make.centerX.equalToSuperview()
+			make.width.height.equalTo(30)
+		}
+		bubbleView.setContentHuggingPriority(.required, for: .horizontal)
+	}
+
+	override func layoutMessageCell() {
+		super.layoutMessageCell()
+		if let textModel = model as? ChatTextObject {
+			self.textLb.attributedText = textModel.attribute
+			setupCellLayout()
+		}
+	}
+
+	required init?(coder: NSCoder) {
+		fatalError("init(coder:) has not been implemented")
+	}
+	
+}
+
+
+extension ChatTextCell {
+
+	func setupCellLayout() {
+		guard let model = model else {return}
+		if model.msg?.isOutgoingMsg == true { //我发送的
+			avatarImgView.snp.remakeConstraints { (make) in
+				make.size.equalTo(ChatUIConfig.layout.avatarSize)
+				make.right.equalToSuperview().offset(-10)
+				make.top.equalToSuperview().offset(ChatUIConfig.layout.cellContentInsets.top)
+			}
+
+			bubbleView.snp.makeConstraints { make in
+				make.size.equalTo(model.contentSize)
+				make.top.equalTo(avatarImgView)
+				make.right.equalTo(avatarImgView.snp.left).offset(-10)
+			}
+			activityIndicatorView.snp.remakeConstraints { (make) in
+				make.centerY.equalTo(bubbleView)
+				make.right.equalTo(bubbleView.snp.left)
+				make.width.height.equalTo(30)
+			}
+
+			textLb.snp.makeConstraints { make in
+				make.edges.equalTo(ChatUIConfig.layout.textInsets)
+			}
+
+			// start
+			activityStartAnimating()
+
+		}else {
+			avatarImgView.snp.remakeConstraints { (make) in
+				make.size.equalTo(ChatUIConfig.layout.avatarSize)
+				make.left.equalToSuperview().offset(10)
+				make.top.equalToSuperview().offset(ChatUIConfig.layout.cellContentInsets.top)
+			}
+
+			bubbleView.snp.makeConstraints { make in
+				make.size.equalTo(model.contentSize)
+				make.top.equalTo(avatarImgView)
+				make.left.equalTo(avatarImgView.snp.right).offset(10)
+			}
+
+			textLb.snp.makeConstraints { make in
+				make.edges.equalTo(ChatUIConfig.layout.textInsets)
+			}
+		}
+	}
+}