点击切换消息列表时间样式

fix: #249

View/MessageTableViewCell.swift

@@ -36,6 +36,8 @@ class MessageTableViewCell: BaseTableViewCell<MessageTableViewCellViewModel> {
         let label = UILabel()
         label.font = RobotoFont.medium(with: 11)
         label.textColor = BKColor.grey.base
+        label.isUserInteractionEnabled = true
+        label.addGestureRecognizer(UITapGestureRecognizer())
         return label
     }()
 
@@ -56,7 +58,6 @@ class MessageTableViewCell: BaseTableViewCell<MessageTableViewCellViewModel> {
         contentView.addSubview(separatorLine)
 
         layoutView()
-        
     }
     
     @available(*, unavailable)
@@ -65,7 +66,6 @@ class MessageTableViewCell: BaseTableViewCell<MessageTableViewCellViewModel> {
     }
     
     func layoutView() {
-
         bodyLabel.snp.remakeConstraints { make in
             make.top.equalTo(16)
             make.left.equalTo(28)
@@ -128,6 +128,16 @@ class MessageTableViewCell: BaseTableViewCell<MessageTableViewCellViewModel> {
             
             self.bodyLabel.attributedText = text
         }.disposed(by: rx.reuseBag)
+        
         model.date.bind(to: self.dateLabel.rx.text).disposed(by: rx.reuseBag)
+        
+        // 切换时间显示样式
+        dateLabel.gestureRecognizers?.first?.rx.event.subscribe(onNext: { _ in
+            if model.dateStyle.value != .exact {
+                model.dateStyle.accept(.exact)
+            } else {
+                model.dateStyle.accept(.relative)
+            }
+        }).disposed(by: rx.reuseBag)
     }
 }

View/MessageTableViewCellViewModel.swift

@@ -11,13 +11,22 @@ import Foundation
 import RxCocoa
 import RxDataSources
 
+enum MessageListCellDateStyle {
+    /// 相对时间，例如 1分钟前、1小时前
+    case relative
+    /// 精确时间，例如 2024-01-01 12:00
+    case exact
+}
+
 class MessageTableViewCellViewModel: ViewModel {
     let message: Message
     
     let title: BehaviorRelay<String>
     let body: BehaviorRelay<String>
     let url: BehaviorRelay<String>
-    let date: BehaviorRelay<String>
+    
+    let date = BehaviorRelay<String>(value: "")
+    var dateStyle = BehaviorRelay<MessageListCellDateStyle>(value: .relative)
     
     init(message: Message) {
         self.message = message
@@ -25,9 +34,19 @@ class MessageTableViewCellViewModel: ViewModel {
         self.title = BehaviorRelay<String>(value: message.title ?? "")
         self.body = BehaviorRelay<String>(value: message.body ?? "")
         self.url = BehaviorRelay<String>(value: message.url ?? "")
-        self.date = BehaviorRelay<String>(value: (message.createDate ?? Date()).agoFormatString())
 
         super.init()
+        
+        dateStyle.map { style in
+            switch style {
+            case .relative:
+                return self.message.createDate?.agoFormatString() ?? ""
+            case .exact:
+                return self.message.createDate?.formatString(format: "yyyy-MM-dd HH:mm") ?? ""
+            }
+        }
+        .bind(to: date)
+        .disposed(by: rx.disposeBag)
     }
 }