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keyBoard/Class/AiTalk/V/KBChatTimeCell.m

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+//
+//  KBChatTimeCell.m
+//  keyBoard
+//
+//  Created by Kiro on 2026/1/23.
+//
+
+#import "KBChatTimeCell.h"
+#import "KBAiChatMessage.h"
+#import <Masonry/Masonry.h>
+
+@interface KBChatTimeCell ()
+
+@property (nonatomic, strong) UILabel *timeLabel;
+
+@end
+
+@implementation KBChatTimeCell
+
+- (instancetype)initWithStyle:(UITableViewCellStyle)style
+              reuseIdentifier:(NSString *)reuseIdentifier {
+    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
+    if (self) {
+        self.backgroundColor = [UIColor clearColor];
+        self.selectionStyle = UITableViewCellSelectionStyleNone;
+        [self setupUI];
+    }
+    return self;
+}
+
+- (void)setupUI {
+    // 时间标签
+    self.timeLabel = [[UILabel alloc] init];
+    self.timeLabel.font = [UIFont systemFontOfSize:12];
+    self.timeLabel.textColor = [UIColor secondaryLabelColor];
+    self.timeLabel.textAlignment = NSTextAlignmentCenter;
+    [self.contentView addSubview:self.timeLabel];
+    
+    // 布局约束
+    [self.timeLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.top.equalTo(self.contentView).offset(8);
+        make.bottom.equalTo(self.contentView).offset(-8);
+        make.centerX.equalTo(self.contentView);
+    }];
+}
+
+- (void)configureWithMessage:(KBAiChatMessage *)message {
+    self.timeLabel.text = [self formatTimestamp:message.timestamp];
+}
+
+/// 格式化时间戳
+- (NSString *)formatTimestamp:(NSDate *)timestamp {
+    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
+    
+    NSCalendar *calendar = [NSCalendar currentCalendar];
+    if ([calendar isDateInToday:timestamp]) {
+        // 今天：显示时间
+        formatter.dateFormat = @"HH:mm";
+    } else if ([calendar isDateInYesterday:timestamp]) {
+        // 昨天
+        formatter.dateFormat = @"'昨天' HH:mm";
+    } else {
+        // 其他：显示日期 + 时间
+        formatter.dateFormat = @"MM月dd日 HH:mm";
+    }
+    
+    return [formatter stringFromDate:timestamp];
+}
+
+@end