处理好评论了

keyBoard/Class/AiTalk/M/KBAICommentModel.m

@@ -64,37 +64,55 @@
     return KBAIReplyFooterStateHidden;
   }
 
-  // 未展开（初始状态）
-  if (!self.isRepliesExpanded) {
-    return KBAIReplyFooterStateExpand;
+  // 已展开
+  if (self.isRepliesExpanded) {
+    return KBAIReplyFooterStateCollapse;
   }
 
-  // 已展开但还有更多
-  if (self.displayedReplies.count < self.totalReplyCount) {
-    return KBAIReplyFooterStateLoadMore;
-  }
-
-  // 全部展开，显示收起
-  return KBAIReplyFooterStateCollapse;
+  // 未展开
+  return KBAIReplyFooterStateExpand;
 }
 
-- (void)loadMoreReplies:(NSInteger)count {
+- (void)expandAllReplies {
   self.isRepliesExpanded = YES;
-
-  NSInteger currentCount = self.displayedReplies.count;
-  NSInteger endIndex = MIN(currentCount + count, self.replies.count);
-
-  for (NSInteger i = currentCount; i < endIndex; i++) {
-    [self.displayedReplies addObject:self.replies[i]];
-  }
-
-  self.hasMoreReplies = (self.displayedReplies.count < self.totalReplyCount);
+  [self.displayedReplies removeAllObjects];
+  [self.displayedReplies addObjectsFromArray:self.replies];
 }
 
 - (void)collapseReplies {
   self.isRepliesExpanded = NO;
   [self.displayedReplies removeAllObjects];
-  self.hasMoreReplies = self.totalReplyCount > 0;
+}
+
+- (CGFloat)calculateHeaderHeightWithMaxWidth:(CGFloat)maxWidth {
+  if (self.cachedHeaderHeight > 0) {
+    return self.cachedHeaderHeight;
+  }
+  
+  // Header 布局：
+  // 头像(40) + 间距(12) + 内容区域 + 间距(50，点赞按钮) + 右边距(16)
+  // 内容区域宽度 = maxWidth - 16(左边距) - 40(头像) - 12(间距) - 50(点赞) - 16(右边距)
+  CGFloat contentWidth = maxWidth - 16 - 40 - 12 - 50 - 16;
+  
+  // 用户名高度（单行）
+  CGFloat userNameHeight = 17; // 14号字体
+  
+  // 时间高度（单行）
+  CGFloat timeHeight = 15; // 12号字体
+  
+  // 内容高度（多行）
+  UIFont *contentFont = [UIFont systemFontOfSize:15];
+  CGRect contentRect = [self.content boundingRectWithSize:CGSizeMake(contentWidth, CGFLOAT_MAX)
+                                                  options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading
+                                               attributes:@{NSFontAttributeName: contentFont}
+                                                  context:nil];
+  CGFloat contentHeight = ceil(contentRect.size.height);
+  
+  // 总高度 = 上边距(12) + 用户名 + 间距(2) + 时间 + 间距(8) + 内容 + 下边距(12)
+  CGFloat totalHeight = 12 + userNameHeight + 2 + timeHeight + 8 + contentHeight + 12;
+  
+  self.cachedHeaderHeight = totalHeight;
+  return totalHeight;
 }
 
 @end