添加评论

keyBoard/Class/AiTalk/V/KBAICommentFooterView.h

@@ -0,0 +1,25 @@
+//
+//  KBAICommentFooterView.h
+//  keyBoard
+//
+//  Created by Mac on 2026/1/16.
+//
+
+#import <UIKit/UIKit.h>
+
+@class KBAICommentModel;
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// Section Footer - 展开/收起/加载更多按钮
+@interface KBAICommentFooterView : UITableViewHeaderFooterView
+
+/// 配置 Footer 数据
+- (void)configureWithComment:(KBAICommentModel *)comment;
+
+/// 操作按钮点击回调
+@property(nonatomic, copy, nullable) void (^onAction)(void);
+
+@end
+
+NS_ASSUME_NONNULL_END

keyBoard/Class/AiTalk/V/KBAICommentFooterView.m

@@ -0,0 +1,131 @@
+//
+//  KBAICommentFooterView.m
+//  keyBoard
+//
+//  Created by Mac on 2026/1/16.
+//
+
+#import "KBAICommentFooterView.h"
+#import "KBAICommentModel.h"
+#import <Masonry/Masonry.h>
+
+@interface KBAICommentFooterView ()
+
+@property(nonatomic, strong) UIButton *actionButton;
+@property(nonatomic, strong) UIView *lineView;
+
+@end
+
+@implementation KBAICommentFooterView
+
+- (instancetype)initWithReuseIdentifier:(NSString *)reuseIdentifier {
+  self = [super initWithReuseIdentifier:reuseIdentifier];
+  if (self) {
+    [self setupUI];
+  }
+  return self;
+}
+
+#pragma mark - UI Setup
+
+- (void)setupUI {
+  self.contentView.backgroundColor = [UIColor whiteColor];
+
+  [self.contentView addSubview:self.actionButton];
+  [self.contentView addSubview:self.lineView];
+
+  [self.actionButton mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.contentView).offset(68); // 对齐二级评论
+    make.centerY.equalTo(self.contentView);
+    make.height.mas_equalTo(24);
+  }];
+
+  [self.lineView mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.contentView).offset(16);
+    make.right.equalTo(self.contentView).offset(-16);
+    make.bottom.equalTo(self.contentView);
+    make.height.mas_equalTo(0.5);
+  }];
+}
+
+#pragma mark - Configuration
+
+- (void)configureWithComment:(KBAICommentModel *)comment {
+  KBAIReplyFooterState state = [comment footerState];
+  NSString *title = @"";
+
+  switch (state) {
+  case KBAIReplyFooterStateHidden: {
+    self.actionButton.hidden = YES;
+    break;
+  }
+  case KBAIReplyFooterStateExpand: {
+    self.actionButton.hidden = NO;
+    title = [NSString
+        stringWithFormat:@"展开%ld条回复", (long)comment.totalReplyCount];
+    [self.actionButton setImage:[UIImage systemImageNamed:@"chevron.down"]
+                       forState:UIControlStateNormal];
+    break;
+  }
+  case KBAIReplyFooterStateLoadMore: {
+    self.actionButton.hidden = NO;
+    NSInteger remaining =
+        comment.totalReplyCount - comment.displayedReplies.count;
+    title =
+        [NSString stringWithFormat:@"展开更多回复 (%ld条)", (long)remaining];
+    [self.actionButton setImage:[UIImage systemImageNamed:@"chevron.down"]
+                       forState:UIControlStateNormal];
+    break;
+  }
+  case KBAIReplyFooterStateCollapse: {
+    self.actionButton.hidden = NO;
+    title = @"收起";
+    [self.actionButton setImage:[UIImage systemImageNamed:@"chevron.up"]
+                       forState:UIControlStateNormal];
+    break;
+  }
+  }
+
+  [self.actionButton setTitle:title forState:UIControlStateNormal];
+}
+
+#pragma mark - Actions
+
+- (void)actionButtonTapped {
+  if (self.onAction) {
+    self.onAction();
+  }
+}
+
+#pragma mark - Lazy Loading
+
+- (UIButton *)actionButton {
+  if (!_actionButton) {
+    _actionButton = [UIButton buttonWithType:UIButtonTypeCustom];
+    _actionButton.titleLabel.font = [UIFont systemFontOfSize:13];
+    [_actionButton setTitleColor:[UIColor secondaryLabelColor]
+                        forState:UIControlStateNormal];
+    _actionButton.tintColor = [UIColor secondaryLabelColor];
+
+    // 文字在左，图标在右
+    _actionButton.semanticContentAttribute =
+        UISemanticContentAttributeForceLeftToRight;
+    _actionButton.imageEdgeInsets = UIEdgeInsetsMake(0, 4, 0, -4);
+    _actionButton.titleEdgeInsets = UIEdgeInsetsMake(0, -4, 0, 4);
+
+    [_actionButton addTarget:self
+                      action:@selector(actionButtonTapped)
+            forControlEvents:UIControlEventTouchUpInside];
+  }
+  return _actionButton;
+}
+
+- (UIView *)lineView {
+  if (!_lineView) {
+    _lineView = [[UIView alloc] init];
+    _lineView.backgroundColor = [UIColor separatorColor];
+  }
+  return _lineView;
+}
+
+@end

keyBoard/Class/AiTalk/V/KBAICommentHeaderView.h

@@ -0,0 +1,25 @@
+//
+//  KBAICommentHeaderView.h
+//  keyBoard
+//
+//  Created by Mac on 2026/1/16.
+//
+
+#import <UIKit/UIKit.h>
+
+@class KBAICommentModel;
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// 一级评论 Section Header 视图
+@interface KBAICommentHeaderView : UITableViewHeaderFooterView
+
+/// 配置评论数据
+- (void)configureWithComment:(KBAICommentModel *)comment;
+
+/// 点赞按钮点击回调
+@property(nonatomic, copy, nullable) void (^onLikeAction)(void);
+
+@end
+
+NS_ASSUME_NONNULL_END

keyBoard/Class/AiTalk/V/KBAICommentHeaderView.m

@@ -0,0 +1,178 @@
+//
+//  KBAICommentHeaderView.m
+//  keyBoard
+//
+//  Created by Mac on 2026/1/16.
+//
+
+#import "KBAICommentHeaderView.h"
+#import "KBAICommentModel.h"
+#import <Masonry/Masonry.h>
+#import <SDWebImage/SDWebImage.h>
+
+@interface KBAICommentHeaderView ()
+
+@property(nonatomic, strong) UIImageView *avatarImageView;
+@property(nonatomic, strong) UILabel *userNameLabel;
+@property(nonatomic, strong) UILabel *timeLabel;
+@property(nonatomic, strong) UILabel *contentLabel;
+@property(nonatomic, strong) UIButton *likeButton;
+
+@end
+
+@implementation KBAICommentHeaderView
+
+- (instancetype)initWithReuseIdentifier:(NSString *)reuseIdentifier {
+  self = [super initWithReuseIdentifier:reuseIdentifier];
+  if (self) {
+    [self setupUI];
+  }
+  return self;
+}
+
+#pragma mark - UI Setup
+
+- (void)setupUI {
+  self.contentView.backgroundColor = [UIColor whiteColor];
+
+  [self.contentView addSubview:self.avatarImageView];
+  [self.contentView addSubview:self.userNameLabel];
+  [self.contentView addSubview:self.timeLabel];
+  [self.contentView addSubview:self.contentLabel];
+  [self.contentView addSubview:self.likeButton];
+
+  [self.avatarImageView mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.contentView).offset(16);
+    make.top.equalTo(self.contentView).offset(12);
+    make.width.height.mas_equalTo(40);
+  }];
+
+  [self.userNameLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.avatarImageView.mas_right).offset(12);
+    make.top.equalTo(self.avatarImageView);
+    make.right.lessThanOrEqualTo(self.likeButton.mas_left).offset(-10);
+  }];
+
+  [self.timeLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.userNameLabel);
+    make.top.equalTo(self.userNameLabel.mas_bottom).offset(2);
+  }];
+
+  [self.contentLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.userNameLabel);
+    make.top.equalTo(self.timeLabel.mas_bottom).offset(8);
+    make.right.equalTo(self.contentView).offset(-50);
+    make.bottom.equalTo(self.contentView).offset(-12);
+  }];
+
+  [self.likeButton mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.right.equalTo(self.contentView).offset(-16);
+    make.top.equalTo(self.contentView).offset(12);
+    make.width.mas_equalTo(50);
+    make.height.mas_equalTo(40);
+  }];
+}
+
+#pragma mark - Configuration
+
+- (void)configureWithComment:(KBAICommentModel *)comment {
+  [self.avatarImageView
+      sd_setImageWithURL:[NSURL URLWithString:comment.avatarUrl]
+        placeholderImage:[UIImage imageNamed:@"default_avatar"]];
+  self.userNameLabel.text = comment.userName;
+  self.timeLabel.text = [comment formattedTime];
+  self.contentLabel.text = comment.content;
+
+  // 点赞按钮
+  NSString *likeText =
+      comment.likeCount > 0 ? [self formatLikeCount:comment.likeCount] : @"赞";
+  [self.likeButton setTitle:likeText forState:UIControlStateNormal];
+
+  UIImage *likeImage = comment.isLiked
+                           ? [UIImage systemImageNamed:@"heart.fill"]
+                           : [UIImage systemImageNamed:@"heart"];
+  [self.likeButton setImage:likeImage forState:UIControlStateNormal];
+  self.likeButton.tintColor =
+      comment.isLiked ? [UIColor systemRedColor] : [UIColor grayColor];
+}
+
+- (NSString *)formatLikeCount:(NSInteger)count {
+  if (count >= 10000) {
+    return [NSString stringWithFormat:@"%.1fw", count / 10000.0];
+  } else if (count >= 1000) {
+    return [NSString stringWithFormat:@"%.1fk", count / 1000.0];
+  }
+  return [NSString stringWithFormat:@"%ld", (long)count];
+}
+
+#pragma mark - Actions
+
+- (void)likeButtonTapped {
+  if (self.onLikeAction) {
+    self.onLikeAction();
+  }
+}
+
+#pragma mark - Lazy Loading
+
+- (UIImageView *)avatarImageView {
+  if (!_avatarImageView) {
+    _avatarImageView = [[UIImageView alloc] init];
+    _avatarImageView.contentMode = UIViewContentModeScaleAspectFill;
+    _avatarImageView.layer.cornerRadius = 20;
+    _avatarImageView.layer.masksToBounds = YES;
+    _avatarImageView.backgroundColor = [UIColor systemGray5Color];
+  }
+  return _avatarImageView;
+}
+
+- (UILabel *)userNameLabel {
+  if (!_userNameLabel) {
+    _userNameLabel = [[UILabel alloc] init];
+    _userNameLabel.font = [UIFont systemFontOfSize:14
+                                            weight:UIFontWeightMedium];
+    _userNameLabel.textColor = [UIColor labelColor];
+  }
+  return _userNameLabel;
+}
+
+- (UILabel *)timeLabel {
+  if (!_timeLabel) {
+    _timeLabel = [[UILabel alloc] init];
+    _timeLabel.font = [UIFont systemFontOfSize:12];
+    _timeLabel.textColor = [UIColor secondaryLabelColor];
+  }
+  return _timeLabel;
+}
+
+- (UILabel *)contentLabel {
+  if (!_contentLabel) {
+    _contentLabel = [[UILabel alloc] init];
+    _contentLabel.font = [UIFont systemFontOfSize:15];
+    _contentLabel.textColor = [UIColor labelColor];
+    _contentLabel.numberOfLines = 0;
+  }
+  return _contentLabel;
+}
+
+- (UIButton *)likeButton {
+  if (!_likeButton) {
+    _likeButton = [UIButton buttonWithType:UIButtonTypeCustom];
+    _likeButton.titleLabel.font = [UIFont systemFontOfSize:12];
+    [_likeButton setTitleColor:[UIColor grayColor]
+                      forState:UIControlStateNormal];
+    [_likeButton setImage:[UIImage systemImageNamed:@"heart"]
+                 forState:UIControlStateNormal];
+    _likeButton.tintColor = [UIColor grayColor];
+
+    // 图片在上，文字在下的布局
+    _likeButton.contentHorizontalAlignment =
+        UIControlContentHorizontalAlignmentCenter;
+    [_likeButton addTarget:self
+                    action:@selector(likeButtonTapped)
+          forControlEvents:UIControlEventTouchUpInside];
+  }
+  return _likeButton;
+}
+
+@end

keyBoard/Class/AiTalk/V/KBAICommentInputView.h

@@ -0,0 +1,26 @@
+//
+//  KBAICommentInputView.h
+//  keyBoard
+//
+//  Created by Mac on 2026/1/16.
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// 底部评论输入框
+@interface KBAICommentInputView : UIView
+
+/// 发送回调，参数为输入的文本
+@property(nonatomic, copy, nullable) void (^onSend)(NSString *text);
+
+/// 设置占位文字
+@property(nonatomic, copy) NSString *placeholder;
+
+/// 清空输入框
+- (void)clearText;
+
+@end
+
+NS_ASSUME_NONNULL_END

keyBoard/Class/AiTalk/V/KBAICommentInputView.m

@@ -0,0 +1,176 @@
+//
+//  KBAICommentInputView.m
+//  keyBoard
+//
+//  Created by Mac on 2026/1/16.
+//
+
+#import "KBAICommentInputView.h"
+#import <Masonry/Masonry.h>
+
+@interface KBAICommentInputView () <UITextFieldDelegate>
+
+@property(nonatomic, strong) UIView *containerView;
+@property(nonatomic, strong) UIImageView *avatarImageView;
+@property(nonatomic, strong) UITextField *textField;
+@property(nonatomic, strong) UIButton *sendButton;
+@property(nonatomic, strong) UIView *topLine;
+
+@end
+
+@implementation KBAICommentInputView
+
+- (instancetype)initWithFrame:(CGRect)frame {
+  self = [super initWithFrame:frame];
+  if (self) {
+    [self setupUI];
+  }
+  return self;
+}
+
+#pragma mark - UI Setup
+
+- (void)setupUI {
+  self.backgroundColor = [UIColor whiteColor];
+
+  [self addSubview:self.topLine];
+  [self addSubview:self.avatarImageView];
+  [self addSubview:self.containerView];
+  [self.containerView addSubview:self.textField];
+  [self addSubview:self.sendButton];
+
+  [self.topLine mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.right.top.equalTo(self);
+    make.height.mas_equalTo(0.5);
+  }];
+
+  [self.avatarImageView mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self).offset(12);
+    make.centerY.equalTo(self);
+    make.width.height.mas_equalTo(32);
+  }];
+
+  [self.containerView mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.avatarImageView.mas_right).offset(10);
+    make.right.equalTo(self.sendButton.mas_left).offset(-10);
+    make.centerY.equalTo(self);
+    make.height.mas_equalTo(36);
+  }];
+
+  [self.textField mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.containerView).offset(12);
+    make.right.equalTo(self.containerView).offset(-12);
+    make.centerY.equalTo(self.containerView);
+  }];
+
+  [self.sendButton mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.right.equalTo(self).offset(-12);
+    make.centerY.equalTo(self);
+    make.width.mas_equalTo(50);
+    make.height.mas_equalTo(30);
+  }];
+}
+
+#pragma mark - Public Methods
+
+- (void)setPlaceholder:(NSString *)placeholder {
+  _placeholder = placeholder;
+  self.textField.placeholder = placeholder;
+}
+
+- (void)clearText {
+  self.textField.text = @"";
+  [self updateSendButtonState];
+}
+
+#pragma mark - Actions
+
+- (void)sendButtonTapped {
+  NSString *text = self.textField.text;
+  if (text.length > 0 && self.onSend) {
+    self.onSend(text);
+  }
+}
+
+- (void)textFieldDidChange:(UITextField *)textField {
+  [self updateSendButtonState];
+}
+
+- (void)updateSendButtonState {
+  BOOL hasText = self.textField.text.length > 0;
+  self.sendButton.enabled = hasText;
+  self.sendButton.alpha = hasText ? 1.0 : 0.5;
+}
+
+#pragma mark - UITextFieldDelegate
+
+- (BOOL)textFieldShouldReturn:(UITextField *)textField {
+  [self sendButtonTapped];
+  return YES;
+}
+
+#pragma mark - Lazy Loading
+
+- (UIView *)topLine {
+  if (!_topLine) {
+    _topLine = [[UIView alloc] init];
+    _topLine.backgroundColor = [UIColor separatorColor];
+  }
+  return _topLine;
+}
+
+- (UIImageView *)avatarImageView {
+  if (!_avatarImageView) {
+    _avatarImageView = [[UIImageView alloc] init];
+    _avatarImageView.contentMode = UIViewContentModeScaleAspectFill;
+    _avatarImageView.layer.cornerRadius = 16;
+    _avatarImageView.layer.masksToBounds = YES;
+    _avatarImageView.backgroundColor = [UIColor systemGray5Color];
+    _avatarImageView.image = [UIImage systemImageNamed:@"person.circle.fill"];
+    _avatarImageView.tintColor = [UIColor systemGray3Color];
+  }
+  return _avatarImageView;
+}
+
+- (UIView *)containerView {
+  if (!_containerView) {
+    _containerView = [[UIView alloc] init];
+    _containerView.backgroundColor = [UIColor systemGray6Color];
+    _containerView.layer.cornerRadius = 18;
+    _containerView.layer.masksToBounds = YES;
+  }
+  return _containerView;
+}
+
+- (UITextField *)textField {
+  if (!_textField) {
+    _textField = [[UITextField alloc] init];
+    _textField.placeholder = @"说点什么...";
+    _textField.font = [UIFont systemFontOfSize:14];
+    _textField.delegate = self;
+    _textField.returnKeyType = UIReturnKeySend;
+    [_textField addTarget:self
+                   action:@selector(textFieldDidChange:)
+         forControlEvents:UIControlEventEditingChanged];
+  }
+  return _textField;
+}
+
+- (UIButton *)sendButton {
+  if (!_sendButton) {
+    _sendButton = [UIButton buttonWithType:UIButtonTypeCustom];
+    [_sendButton setTitle:@"发送" forState:UIControlStateNormal];
+    [_sendButton setTitleColor:[UIColor systemBlueColor]
+                      forState:UIControlStateNormal];
+    _sendButton.titleLabel.font = [UIFont systemFontOfSize:15
+                                                    weight:UIFontWeightMedium];
+    _sendButton.enabled = NO;
+    _sendButton.alpha = 0.5;
+    [_sendButton addTarget:self
+                    action:@selector(sendButtonTapped)
+          forControlEvents:UIControlEventTouchUpInside];
+  }
+  return _sendButton;
+}
+
+@end

keyBoard/Class/AiTalk/V/KBAICommentView.h

@@ -9,8 +9,15 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
+/// 抖音风格评论视图
 @interface KBAICommentView : UIView
 
+/// 加载评论数据（从本地 JSON 文件）
+- (void)loadComments;
+
+/// 评论总数
+@property(nonatomic, readonly) NSInteger totalCommentCount;
+
 @end
 
 NS_ASSUME_NONNULL_END

keyBoard/Class/AiTalk/V/KBAICommentView.m

@@ -6,15 +6,610 @@
 //
 
 #import "KBAICommentView.h"
+#import "KBAICommentFooterView.h"
+#import "KBAICommentHeaderView.h"
+#import "KBAICommentInputView.h"
+#import "KBAICommentModel.h"
+#import "KBAIReplyCell.h"
+#import "KBAIReplyModel.h"
+#import <MJExtension/MJExtension.h>
+#import <Masonry/Masonry.h>
+
+static NSString *const kCommentHeaderIdentifier = @"CommentHeader";
+static NSString *const kReplyCellIdentifier = @"ReplyCell";
+static NSString *const kCommentFooterIdentifier = @"CommentFooter";
+
+/// 每次展开的回复数量
+static NSInteger const kRepliesLoadCount = 3;
+
+@interface KBAICommentView () <UITableViewDataSource, UITableViewDelegate>
+
+@property(nonatomic, strong) UIView *headerView;
+@property(nonatomic, strong) UILabel *titleLabel;
+@property(nonatomic, strong) UIButton *closeButton;
+@property(nonatomic, strong) UITableView *tableView;
+@property(nonatomic, strong) KBAICommentInputView *inputView;
+
+@property(nonatomic, strong) NSMutableArray<KBAICommentModel *> *comments;
+@property(nonatomic, assign) NSInteger totalCommentCount;
+
+/// 键盘高度
+@property(nonatomic, assign) CGFloat keyboardHeight;
+/// 输入框底部约束
+@property(nonatomic, strong) MASConstraint *inputBottomConstraint;
+
+@end
 
 @implementation KBAICommentView
 
-/*
-// Only override drawRect: if you perform custom drawing.
-// An empty implementation adversely affects performance during animation.
-- (void)drawRect:(CGRect)rect {
-    // Drawing code
+#pragma mark - Lifecycle
+
+- (instancetype)initWithFrame:(CGRect)frame {
+  self = [super initWithFrame:frame];
+  if (self) {
+    self.comments = [NSMutableArray array];
+    [self setupUI];
+    [self setupKeyboardObservers];
+    [self loadComments];
+  }
+  return self;
+}
+
+- (void)dealloc {
+  [[NSNotificationCenter defaultCenter] removeObserver:self];
+}
+
+#pragma mark - UI Setup
+
+- (void)setupUI {
+  self.backgroundColor = [UIColor whiteColor];
+  self.layer.cornerRadius = 12;
+  self.layer.maskedCorners = kCALayerMinXMinYCorner | kCALayerMaxXMinYCorner;
+  self.clipsToBounds = YES;
+
+  [self addSubview:self.headerView];
+  [self.headerView addSubview:self.titleLabel];
+  [self.headerView addSubview:self.closeButton];
+  [self addSubview:self.tableView];
+  [self addSubview:self.inputView];
+
+  [self.headerView mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.top.left.right.equalTo(self);
+    make.height.mas_equalTo(50);
+  }];
+
+  [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.center.equalTo(self.headerView);
+  }];
+
+  [self.closeButton mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.right.equalTo(self.headerView).offset(-16);
+    make.centerY.equalTo(self.headerView);
+    make.width.height.mas_equalTo(30);
+  }];
+
+  [self.inputView mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.right.equalTo(self);
+    make.height.mas_equalTo(50);
+    self.inputBottomConstraint = make.bottom.equalTo(self);
+  }];
+
+  [self.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.top.equalTo(self.headerView.mas_bottom);
+    make.left.right.equalTo(self);
+    make.bottom.equalTo(self.inputView.mas_top);
+  }];
+}
+
+#pragma mark - Keyboard Observers
+
+- (void)setupKeyboardObservers {
+  [[NSNotificationCenter defaultCenter]
+      addObserver:self
+         selector:@selector(keyboardWillShow:)
+             name:UIKeyboardWillShowNotification
+           object:nil];
+  [[NSNotificationCenter defaultCenter]
+      addObserver:self
+         selector:@selector(keyboardWillHide:)
+             name:UIKeyboardWillHideNotification
+           object:nil];
+}
+
+- (void)keyboardWillShow:(NSNotification *)notification {
+  CGRect keyboardFrame =
+      [notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
+  NSTimeInterval duration =
+      [notification.userInfo[UIKeyboardAnimationDurationUserInfoKey]
+          doubleValue];
+
+  self.keyboardHeight = keyboardFrame.size.height;
+
+  [self.inputBottomConstraint uninstall];
+  [self.inputView mas_updateConstraints:^(MASConstraintMaker *make) {
+    self.inputBottomConstraint =
+        make.bottom.equalTo(self).offset(-self.keyboardHeight);
+  }];
+
+  [UIView animateWithDuration:duration
+                   animations:^{
+                     [self layoutIfNeeded];
+                   }];
+}
+
+- (void)keyboardWillHide:(NSNotification *)notification {
+  NSTimeInterval duration =
+      [notification.userInfo[UIKeyboardAnimationDurationUserInfoKey]
+          doubleValue];
+
+  self.keyboardHeight = 0;
+
+  [self.inputBottomConstraint uninstall];
+  [self.inputView mas_updateConstraints:^(MASConstraintMaker *make) {
+    self.inputBottomConstraint = make.bottom.equalTo(self);
+  }];
+
+  [UIView animateWithDuration:duration
+                   animations:^{
+                     [self layoutIfNeeded];
+                   }];
+}
+
+#pragma mark - Data Loading
+
+- (void)loadComments {
+  NSString *filePath = [[NSBundle mainBundle] pathForResource:@"comments_mock"
+                                                       ofType:@"json"];
+  if (!filePath) {
+    NSLog(@"[KBAICommentView] comments_mock.json not found");
+    return;
+  }
+
+  NSData *data = [NSData dataWithContentsOfFile:filePath];
+  if (!data) {
+    NSLog(@"[KBAICommentView] Failed to read comments_mock.json");
+    return;
+  }
+
+  NSError *error;
+  NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data
+                                                       options:0
+                                                         error:&error];
+  if (error) {
+    NSLog(@"[KBAICommentView] JSON parse error: %@", error);
+    return;
+  }
+
+  self.totalCommentCount = [json[@"totalCount"] integerValue];
+  NSArray *commentsArray = json[@"comments"];
+
+  [self.comments removeAllObjects];
+  for (NSDictionary *dict in commentsArray) {
+    KBAICommentModel *comment = [KBAICommentModel mj_objectWithKeyValues:dict];
+    [self.comments addObject:comment];
+  }
+
+  [self updateTitle];
+  [self.tableView reloadData];
+}
+
+- (void)updateTitle {
+  NSString *countText;
+  if (self.totalCommentCount >= 10000) {
+    countText = [NSString
+        stringWithFormat:@"%.1fw条评论", self.totalCommentCount / 10000.0];
+  } else {
+    countText =
+        [NSString stringWithFormat:@"%ld条评论", (long)self.totalCommentCount];
+  }
+  self.titleLabel.text = countText;
+}
+
+#pragma mark - UITableViewDataSource
+
+- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
+  return self.comments.count;
+}
+
+- (NSInteger)tableView:(UITableView *)tableView
+    numberOfRowsInSection:(NSInteger)section {
+  KBAICommentModel *comment = self.comments[section];
+  return comment.displayedReplies.count;
+}
+
+- (UITableViewCell *)tableView:(UITableView *)tableView
+         cellForRowAtIndexPath:(NSIndexPath *)indexPath {
+  KBAIReplyCell *cell =
+      [tableView dequeueReusableCellWithIdentifier:kReplyCellIdentifier
+                                      forIndexPath:indexPath];
+
+  KBAICommentModel *comment = self.comments[indexPath.section];
+  KBAIReplyModel *reply = comment.displayedReplies[indexPath.row];
+  [cell configureWithReply:reply];
+
+  __weak typeof(self) weakSelf = self;
+  cell.onLikeAction = ^{
+    // TODO: 处理点赞逻辑
+    reply.isLiked = !reply.isLiked;
+    reply.likeCount += reply.isLiked ? 1 : -1;
+    [weakSelf.tableView reloadRowsAtIndexPaths:@[ indexPath ]
+                              withRowAnimation:UITableViewRowAnimationNone];
+  };
+
+  return cell;
+}
+
+#pragma mark - UITableViewDelegate
+
+- (UIView *)tableView:(UITableView *)tableView
+    viewForHeaderInSection:(NSInteger)section {
+  KBAICommentHeaderView *header = [tableView
+      dequeueReusableHeaderFooterViewWithIdentifier:kCommentHeaderIdentifier];
+
+  KBAICommentModel *comment = self.comments[section];
+  [header configureWithComment:comment];
+
+  __weak typeof(self) weakSelf = self;
+  header.onLikeAction = ^{
+    // TODO: 处理点赞逻辑
+    comment.isLiked = !comment.isLiked;
+    comment.likeCount += comment.isLiked ? 1 : -1;
+    [weakSelf.tableView reloadSections:[NSIndexSet indexSetWithIndex:section]
+                      withRowAnimation:UITableViewRowAnimationNone];
+  };
+
+  return header;
+}
+
+- (UIView *)tableView:(UITableView *)tableView
+    viewForFooterInSection:(NSInteger)section {
+  KBAICommentModel *comment = self.comments[section];
+  KBAIReplyFooterState state = [comment footerState];
+
+  // 无二级评论时返回空视图
+  if (state == KBAIReplyFooterStateHidden) {
+    NSLog(@"[KBAICommentView] footer hidden section=%ld", (long)section);
+    return nil;
+  }
+
+  KBAICommentFooterView *footer = [tableView
+      dequeueReusableHeaderFooterViewWithIdentifier:kCommentFooterIdentifier];
+  [footer configureWithComment:comment];
+
+  __weak typeof(self) weakSelf = self;
+  footer.onAction = ^{
+    [weakSelf handleFooterActionForSection:section];
+  };
+
+  return footer;
+}
+
+- (CGFloat)tableView:(UITableView *)tableView
+    heightForHeaderInSection:(NSInteger)section {
+  return UITableViewAutomaticDimension;
+}
+
+- (CGFloat)tableView:(UITableView *)tableView
+    heightForFooterInSection:(NSInteger)section {
+  KBAICommentModel *comment = self.comments[section];
+  KBAIReplyFooterState state = [comment footerState];
+
+  if (state == KBAIReplyFooterStateHidden) {
+    return CGFLOAT_MIN;
+  }
+  return 30;
+}
+
+- (CGFloat)tableView:(UITableView *)tableView
+    estimatedHeightForHeaderInSection:(NSInteger)section {
+  return 100;
+}
+
+- (CGFloat)tableView:(UITableView *)tableView
+    estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath {
+  return 60;
+}
+
+#pragma mark - Footer Actions
+
+- (void)handleFooterActionForSection:(NSInteger)section {
+  KBAICommentModel *comment = self.comments[section];
+  KBAIReplyFooterState state = [comment footerState];
+
+  switch (state) {
+  case KBAIReplyFooterStateExpand:
+  case KBAIReplyFooterStateLoadMore: {
+    [self loadMoreRepliesForSection:section];
+    break;
+  }
+  case KBAIReplyFooterStateCollapse: {
+    [self collapseRepliesForSection:section];
+    break;
+  }
+  default:
+    break;
+  }
+}
+
+- (void)loadMoreRepliesForSection:(NSInteger)section {
+  KBAICommentModel *comment = self.comments[section];
+  NSInteger currentCount = comment.displayedReplies.count;
+  NSDictionary *anchor = [self captureHeaderAnchorForSection:section];
+
+  NSLog(@"[KBAICommentView] loadMore(before) section=%ld offsetY=%.2f contentSizeH=%.2f boundsH=%.2f rows=%ld",
+        (long)section,
+        self.tableView.contentOffset.y,
+        self.tableView.contentSize.height,
+        self.tableView.bounds.size.height,
+        (long)currentCount);
+
+  // 加载更多
+  [comment loadMoreReplies:kRepliesLoadCount];
+
+  // 计算新增的行
+  NSInteger newCount = comment.displayedReplies.count;
+  NSMutableArray *insertIndexPaths = [NSMutableArray array];
+  for (NSInteger i = currentCount; i < newCount; i++) {
+    [insertIndexPaths addObject:[NSIndexPath indexPathForRow:i
+                                                   inSection:section]];
+  }
+
+  // 更新（避免动画导致跳动）
+  [UIView performWithoutAnimation:^{
+    [self.tableView beginUpdates];
+    if (insertIndexPaths.count > 0) {
+      [self.tableView insertRowsAtIndexPaths:insertIndexPaths
+                            withRowAnimation:UITableViewRowAnimationNone];
+    }
+    [self.tableView endUpdates];
+    [self.tableView layoutIfNeeded];
+    [self restoreHeaderAnchor:anchor];
+  }];
+
+  NSLog(@"[KBAICommentView] loadMore(after) section=%ld offsetY=%.2f contentSizeH=%.2f boundsH=%.2f rows=%ld",
+        (long)section,
+        self.tableView.contentOffset.y,
+        self.tableView.contentSize.height,
+        self.tableView.bounds.size.height,
+        (long)comment.displayedReplies.count);
+  dispatch_async(dispatch_get_main_queue(), ^{
+    NSLog(@"[KBAICommentView] loadMore(next) section=%ld offsetY=%.2f contentSizeH=%.2f boundsH=%.2f viewBoundsH=%.2f",
+          (long)section,
+          self.tableView.contentOffset.y,
+          self.tableView.contentSize.height,
+          self.tableView.bounds.size.height,
+          self.bounds.size.height);
+  });
+
+  // 手动刷新 Footer（避免使用 reloadSections 导致滚动）
+  KBAICommentFooterView *footerView =
+      (KBAICommentFooterView *)[self.tableView footerViewForSection:section];
+  if (footerView) {
+    [footerView configureWithComment:comment];
+  }
+}
+
+- (void)collapseRepliesForSection:(NSInteger)section {
+  KBAICommentModel *comment = self.comments[section];
+  NSInteger rowCount = comment.displayedReplies.count;
+  NSDictionary *anchor = [self captureHeaderAnchorForSection:section];
+
+  NSLog(@"[KBAICommentView] collapse(before) section=%ld offsetY=%.2f contentSizeH=%.2f boundsH=%.2f rows=%ld",
+        (long)section,
+        self.tableView.contentOffset.y,
+        self.tableView.contentSize.height,
+        self.tableView.bounds.size.height,
+        (long)rowCount);
+
+  // 计算要删除的行
+  NSMutableArray *deleteIndexPaths = [NSMutableArray array];
+  for (NSInteger i = 0; i < rowCount; i++) {
+    [deleteIndexPaths addObject:[NSIndexPath indexPathForRow:i
+                                                   inSection:section]];
+  }
+
+  // 收起回复
+  [comment collapseReplies];
+
+  // 删除行（避免动画导致跳动）
+  [UIView performWithoutAnimation:^{
+    [self.tableView beginUpdates];
+    if (deleteIndexPaths.count > 0) {
+      [self.tableView deleteRowsAtIndexPaths:deleteIndexPaths
+                            withRowAnimation:UITableViewRowAnimationNone];
+    }
+    [self.tableView endUpdates];
+    [self.tableView layoutIfNeeded];
+    [self restoreHeaderAnchor:anchor];
+  }];
+
+  NSLog(@"[KBAICommentView] collapse(after) section=%ld offsetY=%.2f contentSizeH=%.2f boundsH=%.2f rows=%ld",
+        (long)section,
+        self.tableView.contentOffset.y,
+        self.tableView.contentSize.height,
+        self.tableView.bounds.size.height,
+        (long)comment.displayedReplies.count);
+  dispatch_async(dispatch_get_main_queue(), ^{
+    NSLog(@"[KBAICommentView] collapse(next) section=%ld offsetY=%.2f contentSizeH=%.2f boundsH=%.2f viewBoundsH=%.2f",
+          (long)section,
+          self.tableView.contentOffset.y,
+          self.tableView.contentSize.height,
+          self.tableView.bounds.size.height,
+          self.bounds.size.height);
+  });
+
+  // 手动刷新 Footer（避免使用 reloadSections 导致滚动）
+  KBAICommentFooterView *footerView =
+      (KBAICommentFooterView *)[self.tableView footerViewForSection:section];
+  if (footerView) {
+    [footerView configureWithComment:comment];
+  }
+}
+
+#pragma mark - Actions
+
+- (void)closeButtonTapped {
+  // 关闭评论视图（由外部处理）
+  [[NSNotificationCenter defaultCenter]
+      postNotificationName:@"KBAICommentViewCloseNotification"
+                    object:nil];
+}
+
+#pragma mark - Lazy Loading
+
+- (UIView *)headerView {
+  if (!_headerView) {
+    _headerView = [[UIView alloc] init];
+    _headerView.backgroundColor = [UIColor whiteColor];
+  }
+  return _headerView;
+}
+
+- (UILabel *)titleLabel {
+  if (!_titleLabel) {
+    _titleLabel = [[UILabel alloc] init];
+    _titleLabel.font = [UIFont systemFontOfSize:15 weight:UIFontWeightMedium];
+    _titleLabel.textColor = [UIColor labelColor];
+    _titleLabel.text = @"0条评论";
+  }
+  return _titleLabel;
+}
+
+- (UIButton *)closeButton {
+  if (!_closeButton) {
+    _closeButton = [UIButton buttonWithType:UIButtonTypeCustom];
+    [_closeButton setImage:[UIImage systemImageNamed:@"xmark"]
+                  forState:UIControlStateNormal];
+    _closeButton.tintColor = [UIColor labelColor];
+    [_closeButton addTarget:self
+                     action:@selector(closeButtonTapped)
+           forControlEvents:UIControlEventTouchUpInside];
+  }
+  return _closeButton;
+}
+
+- (UITableView *)tableView {
+  if (!_tableView) {
+    _tableView = [[UITableView alloc] initWithFrame:CGRectZero
+                                              style:UITableViewStyleGrouped];
+    _tableView.dataSource = self;
+    _tableView.delegate = self;
+    _tableView.backgroundColor = [UIColor whiteColor];
+    _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
+    _tableView.estimatedRowHeight = 0;
+    _tableView.rowHeight = UITableViewAutomaticDimension;
+    _tableView.estimatedSectionHeaderHeight = 0;
+    _tableView.estimatedSectionFooterHeight = 0;
+    _tableView.sectionHeaderHeight = UITableViewAutomaticDimension;
+    _tableView.sectionFooterHeight = UITableViewAutomaticDimension;
+    _tableView.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;
+
+    // 注册 Header/Cell/Footer
+    [_tableView registerClass:[KBAICommentHeaderView class]
+        forHeaderFooterViewReuseIdentifier:kCommentHeaderIdentifier];
+    [_tableView registerClass:[KBAIReplyCell class]
+        forCellReuseIdentifier:kReplyCellIdentifier];
+    [_tableView registerClass:[KBAICommentFooterView class]
+        forHeaderFooterViewReuseIdentifier:kCommentFooterIdentifier];
+
+    // 去掉顶部间距
+    if (@available(iOS 15.0, *)) {
+      _tableView.sectionHeaderTopPadding = 0;
+    }
+  }
+  return _tableView;
+}
+
+- (KBAICommentInputView *)inputView {
+  if (!_inputView) {
+    _inputView = [[KBAICommentInputView alloc] init];
+    _inputView.placeholder = @"说点什么...";
+
+    __weak typeof(self) weakSelf = self;
+    _inputView.onSend = ^(NSString *text) {
+      // TODO: 发送评论
+      NSLog(@"[KBAICommentView] Send comment: %@", text);
+      [weakSelf.inputView clearText];
+    };
+  }
+  return _inputView;
+}
+
+#pragma mark - Header Anchor
+
+- (NSDictionary *)captureHeaderAnchorForSection:(NSInteger)section {
+  CGRect rect = [self.tableView rectForHeaderInSection:section];
+  NSLog(@"[KBAICommentView] anchor capture(header) section=%ld rect=%@ offsetY=%.2f contentSizeH=%.2f boundsH=%.2f",
+        (long)section,
+        NSStringFromCGRect(rect),
+        self.tableView.contentOffset.y,
+        self.tableView.contentSize.height,
+        self.tableView.bounds.size.height);
+  if (CGRectIsEmpty(rect) || CGRectIsNull(rect)) {
+    NSLog(@"[KBAICommentView] anchor capture(header) empty section=%ld",
+          (long)section);
+    return nil;
+  }
+
+  CGFloat offset = self.tableView.contentOffset.y - rect.origin.y;
+  return @{
+    @"section" : @(section),
+    @"offset" : @(offset),
+    @"fallbackOffset" : @(self.tableView.contentOffset.y)
+  };
+}
+
+- (void)restoreHeaderAnchor:(NSDictionary *)anchor {
+  if (!anchor) {
+    NSLog(@"[KBAICommentView] anchor restore(header) skipped (nil)");
+    return;
+  }
+
+  NSInteger section = [anchor[@"section"] integerValue];
+  if (section < 0 || section >= self.comments.count) {
+    NSLog(@"[KBAICommentView] anchor restore(header) invalid section=%ld",
+          (long)section);
+    return;
+  }
+
+  CGRect rect = [self.tableView rectForHeaderInSection:section];
+  NSLog(@"[KBAICommentView] anchor restore(header) section=%ld rect=%@",
+        (long)section,
+        NSStringFromCGRect(rect));
+  if (CGRectIsEmpty(rect) || CGRectIsNull(rect)) {
+    NSNumber *fallbackOffset = anchor[@"fallbackOffset"];
+    if (!fallbackOffset) {
+      NSLog(@"[KBAICommentView] anchor restore(header) no fallback section=%ld",
+            (long)section);
+      return;
+    }
+    NSLog(@"[KBAICommentView] anchor restore(header) fallback section=%ld offsetY=%.2f",
+          (long)section,
+          [fallbackOffset doubleValue]);
+    [self setTableViewOffset:[fallbackOffset doubleValue]];
+    return;
+  }
+
+  CGFloat targetOffsetY = rect.origin.y + [anchor[@"offset"] doubleValue];
+  NSLog(@"[KBAICommentView] anchor restore(header) target section=%ld targetY=%.2f",
+        (long)section,
+        targetOffsetY);
+  [self setTableViewOffset:targetOffsetY];
+}
+
+- (void)setTableViewOffset:(CGFloat)offsetY {
+  UIEdgeInsets inset = self.tableView.adjustedContentInset;
+  CGFloat minOffsetY = -inset.top;
+  CGFloat maxOffsetY =
+      MAX(minOffsetY, self.tableView.contentSize.height + inset.bottom -
+                           self.tableView.bounds.size.height);
+  CGFloat targetOffsetY = MIN(MAX(offsetY, minOffsetY), maxOffsetY);
+  NSLog(@"[KBAICommentView] set offset target=%.2f min=%.2f max=%.2f",
+        targetOffsetY,
+        minOffsetY,
+        maxOffsetY);
+  [self.tableView setContentOffset:CGPointMake(0, targetOffsetY)
+                          animated:NO];
 }
-*/
 
 @end

keyBoard/Class/AiTalk/V/KBAIReplyCell.h

@@ -0,0 +1,25 @@
+//
+//  KBAIReplyCell.h
+//  keyBoard
+//
+//  Created by Mac on 2026/1/16.
+//
+
+#import <UIKit/UIKit.h>
+
+@class KBAIReplyModel;
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// 二级评论 Cell
+@interface KBAIReplyCell : UITableViewCell
+
+/// 配置回复数据
+- (void)configureWithReply:(KBAIReplyModel *)reply;
+
+/// 点赞按钮点击回调
+@property(nonatomic, copy, nullable) void (^onLikeAction)(void);
+
+@end
+
+NS_ASSUME_NONNULL_END

keyBoard/Class/AiTalk/V/KBAIReplyCell.m

@@ -0,0 +1,198 @@
+//
+//  KBAIReplyCell.m
+//  keyBoard
+//
+//  Created by Mac on 2026/1/16.
+//
+
+#import "KBAIReplyCell.h"
+#import "KBAIReplyModel.h"
+#import <Masonry/Masonry.h>
+#import <SDWebImage/SDWebImage.h>
+
+@interface KBAIReplyCell ()
+
+@property(nonatomic, strong) UIImageView *avatarImageView;
+@property(nonatomic, strong) UILabel *contentLabel;
+@property(nonatomic, strong) UILabel *timeLabel;
+@property(nonatomic, strong) UIButton *likeButton;
+
+@end
+
+@implementation KBAIReplyCell
+
+- (instancetype)initWithStyle:(UITableViewCellStyle)style
+              reuseIdentifier:(NSString *)reuseIdentifier {
+  self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
+  if (self) {
+    self.selectionStyle = UITableViewCellSelectionStyleNone;
+    self.backgroundColor = [UIColor whiteColor];
+    [self setupUI];
+  }
+  return self;
+}
+
+#pragma mark - UI Setup
+
+- (void)setupUI {
+  [self.contentView addSubview:self.avatarImageView];
+  [self.contentView addSubview:self.contentLabel];
+  [self.contentView addSubview:self.timeLabel];
+  [self.contentView addSubview:self.likeButton];
+
+  // 左侧缩进 48pt（对齐一级评论内容）
+  [self.avatarImageView mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.contentView).offset(68); // 16 + 40 + 12 = 68
+    make.top.equalTo(self.contentView).offset(8);
+    make.width.height.mas_equalTo(28);
+  }];
+
+  [self.contentLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.avatarImageView.mas_right).offset(8);
+    make.top.equalTo(self.avatarImageView);
+    make.right.equalTo(self.likeButton.mas_left).offset(-8);
+  }];
+
+  [self.timeLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.left.equalTo(self.contentLabel);
+    make.top.equalTo(self.contentLabel.mas_bottom).offset(4);
+    make.bottom.equalTo(self.contentView).offset(-8);
+  }];
+
+  [self.likeButton mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.right.equalTo(self.contentView).offset(-16);
+    make.top.equalTo(self.contentView).offset(8);
+    make.width.mas_equalTo(40);
+    make.height.mas_equalTo(30);
+  }];
+}
+
+#pragma mark - Configuration
+
+- (void)configureWithReply:(KBAIReplyModel *)reply {
+  [self.avatarImageView
+      sd_setImageWithURL:[NSURL URLWithString:reply.avatarUrl]
+        placeholderImage:[UIImage imageNamed:@"default_avatar"]];
+
+  // 构建富文本：用户名（蓝色）+ @回复用户（蓝色）+ 内容
+  NSMutableAttributedString *attrText =
+      [[NSMutableAttributedString alloc] init];
+
+  // 用户名
+  NSDictionary *nameAttrs = @{
+    NSFontAttributeName : [UIFont systemFontOfSize:14
+                                            weight:UIFontWeightMedium],
+    NSForegroundColorAttributeName : [UIColor labelColor]
+  };
+  [attrText appendAttributedString:[[NSAttributedString alloc]
+                                       initWithString:reply.userName
+                                           attributes:nameAttrs]];
+
+  // @回复用户
+  if (reply.replyToUserName.length > 0) {
+    NSDictionary *replyAttrs = @{
+      NSFontAttributeName : [UIFont systemFontOfSize:14],
+      NSForegroundColorAttributeName : [UIColor systemBlueColor]
+    };
+    NSString *replyTo =
+        [NSString stringWithFormat:@" 回复 @%@", reply.replyToUserName];
+    [attrText appendAttributedString:[[NSAttributedString alloc]
+                                         initWithString:replyTo
+                                             attributes:replyAttrs]];
+  }
+
+  // 内容
+  NSDictionary *contentAttrs = @{
+    NSFontAttributeName : [UIFont systemFontOfSize:14],
+    NSForegroundColorAttributeName : [UIColor labelColor]
+  };
+  NSString *content = [NSString stringWithFormat:@"：%@", reply.content];
+  [attrText appendAttributedString:[[NSAttributedString alloc]
+                                       initWithString:content
+                                           attributes:contentAttrs]];
+
+  self.contentLabel.attributedText = attrText;
+
+  // 时间
+  self.timeLabel.text = [reply formattedTime];
+
+  // 点赞
+  NSString *likeText =
+      reply.likeCount > 0 ? [self formatLikeCount:reply.likeCount] : @"";
+  [self.likeButton setTitle:likeText forState:UIControlStateNormal];
+
+  UIImage *likeImage = reply.isLiked ? [UIImage systemImageNamed:@"heart.fill"]
+                                     : [UIImage systemImageNamed:@"heart"];
+  [self.likeButton setImage:likeImage forState:UIControlStateNormal];
+  self.likeButton.tintColor =
+      reply.isLiked ? [UIColor systemRedColor] : [UIColor grayColor];
+}
+
+- (NSString *)formatLikeCount:(NSInteger)count {
+  if (count >= 10000) {
+    return [NSString stringWithFormat:@"%.1fw", count / 10000.0];
+  } else if (count >= 1000) {
+    return [NSString stringWithFormat:@"%.1fk", count / 1000.0];
+  }
+  return [NSString stringWithFormat:@"%ld", (long)count];
+}
+
+#pragma mark - Actions
+
+- (void)likeButtonTapped {
+  if (self.onLikeAction) {
+    self.onLikeAction();
+  }
+}
+
+#pragma mark - Lazy Loading
+
+- (UIImageView *)avatarImageView {
+  if (!_avatarImageView) {
+    _avatarImageView = [[UIImageView alloc] init];
+    _avatarImageView.contentMode = UIViewContentModeScaleAspectFill;
+    _avatarImageView.layer.cornerRadius = 14;
+    _avatarImageView.layer.masksToBounds = YES;
+    _avatarImageView.backgroundColor = [UIColor systemGray5Color];
+  }
+  return _avatarImageView;
+}
+
+- (UILabel *)contentLabel {
+  if (!_contentLabel) {
+    _contentLabel = [[UILabel alloc] init];
+    _contentLabel.numberOfLines = 0;
+  }
+  return _contentLabel;
+}
+
+- (UILabel *)timeLabel {
+  if (!_timeLabel) {
+    _timeLabel = [[UILabel alloc] init];
+    _timeLabel.font = [UIFont systemFontOfSize:11];
+    _timeLabel.textColor = [UIColor secondaryLabelColor];
+  }
+  return _timeLabel;
+}
+
+- (UIButton *)likeButton {
+  if (!_likeButton) {
+    _likeButton = [UIButton buttonWithType:UIButtonTypeCustom];
+    _likeButton.titleLabel.font = [UIFont systemFontOfSize:11];
+    [_likeButton setTitleColor:[UIColor grayColor]
+                      forState:UIControlStateNormal];
+    [_likeButton setImage:[UIImage systemImageNamed:@"heart"]
+                 forState:UIControlStateNormal];
+    _likeButton.tintColor = [UIColor grayColor];
+    [_likeButton addTarget:self
+                    action:@selector(likeButtonTapped)
+          forControlEvents:UIControlEventTouchUpInside];
+
+    // 设置图片和文字间距
+    _likeButton.imageEdgeInsets = UIEdgeInsetsMake(0, -2, 0, 2);
+    _likeButton.titleEdgeInsets = UIEdgeInsetsMake(0, 2, 0, -2);
+  }
+  return _likeButton;
+}
+
+@end