// 消息已读处理

galaxy/galaxy/Classes/Modules/Message(消息)/C/YHMessageDetailListVC.swift

@@ -12,6 +12,9 @@ class YHMessageDetailListVC: YHBaseViewController {
     
     var type:Int = -1
     var msgArr:[YHDetailMessageModel] = []
+    // 滑动过程中出现在屏幕上的未读消息集合
+    var visiblemsgIdSet = Set<String>()
+    var visibleMsgArr = [YHDetailMessageModel]()
     
     lazy var viewModel = {
         let model = YHMsgViewModel()
@@ -118,7 +121,10 @@ class YHMessageDetailListVC: YHBaseViewController {
             msgArr.removeAll()
             msgArr.append(contentsOf: self.viewModel.msgDetailList)
             emptyDataTipsView.isHidden = msgArr.count > 0
-            self.tableView.reloadData()
+            self.tableView.reloadData {
+                [weak self] in
+                self?.addUpAppearUnreadMessages()
+            }
         }
     }
     
@@ -136,17 +142,50 @@ class YHMessageDetailListVC: YHBaseViewController {
                 self.tableView.reloadData()
                 return
             }
-            
+            var msg = "清除失败"
             if let error = error {
-                var msg = "清除失败"
                 if error.errorMsg.count > 0 {
                     msg = error.errorMsg
                 }
-                YHHUD.flash(message: msg)
-                return
             }
+            YHHUD.flash(message: msg)
         }
     }
+    
+    func markAppearMessagsReaded() {
+        
+            var msgIds:[Int] = []
+            var resultArr:[YHDetailMessageModel] = []
+            for msgItem in visibleMsgArr {
+                if let msgId = Int(msgItem.id), msgItem.isRead == false  {
+                    msgIds.append(msgId)
+                    resultArr.append(msgItem)
+                }
+            }
+            if msgIds.count <= 0 { return }
+            YHHUD.show(.progress(message: "标记已读中..."))
+            self.viewModel.readMessages(type: self.type, msgIds: msgIds, isAllRead:false) {
+                [weak self] success, error in
+                YHHUD.hide()
+                guard let self = self else { return }
+                if success {
+                    for msgItem in resultArr {
+                        msgItem.isRead = true
+                    }
+                    self.tableView.reloadData()
+                    return
+                }
+                
+                var msg = "标记已读失败"
+                if let error = error {
+                    if error.errorMsg.count > 0 {
+                        msg = error.errorMsg
+                    }
+                }
+                YHHUD.flash(message: msg)
+                
+            }
+        }
 }
 
 extension YHMessageDetailListVC: UITableViewDelegate, UITableViewDataSource {
@@ -187,5 +226,32 @@ extension YHMessageDetailListVC: UITableViewDelegate, UITableViewDataSource {
         return UIView()
     }
     
+    func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
+        if scrollView == tableView && !decelerate {
+            // 在这里处理滑动停止事件
+            print("TableView 滑动停止")
+            markAppearMessagsReaded()
+        }
+    }
+    
+    func scrollViewDidScroll(_ scrollView: UIScrollView) {
+        addUpAppearUnreadMessages()
+    }
+    
+    // 累计出现在屏幕上的未读消息集合
+    func addUpAppearUnreadMessages() {
+        guard let visibleIndexPaths = tableView.indexPathsForVisibleRows else { return }
+        for indexPath in visibleIndexPaths {
+            if 0 <= indexPath.row && indexPath.row < msgArr.count {
+                let msgItem = msgArr[indexPath.row]
+                if !msgItem.isRead {
+                    if !visiblemsgIdSet.contains(msgItem.id) {
+                        visiblemsgIdSet.insert(msgItem.id)
+                        visibleMsgArr.append(msgItem)
+                    }
+                }
+            }
+        }
+    }
 }