1

keyBoard/Class/AiTalk/V/Chat/KBChatTableView.h

@@ -63,6 +63,14 @@ NS_ASSUME_NONNULL_BEGIN
 /// 移除 loading 用户消息
 - (void)removeLoadingUserMessage;
 
+/// 顶部加载中提示
+- (void)showTopLoading;
+- (void)hideTopLoading;
+
+/// 顶部“无更多数据”提示
+- (void)showNoMoreData;
+- (void)hideNoMoreData;
+
 /// 滚动到底部
 - (void)scrollToBottom;
 

keyBoard/Class/AiTalk/V/Chat/KBChatTableView.m

@@ -37,6 +37,11 @@ static const NSTimeInterval kTimestampInterval = 5 * 60; // 5 分钟
 @property (nonatomic, assign) CGSize lastIntroFooterTableSize;
 @property (nonatomic, assign) BOOL applyingIntroFooter;
 @property (nonatomic, copy) NSString *remoteAudioToken;
+@property (nonatomic, strong) UIView *topStatusView;
+@property (nonatomic, strong) UIActivityIndicatorView *topLoadingIndicator;
+@property (nonatomic, strong) UILabel *topStatusLabel;
+@property (nonatomic, assign) BOOL isTopLoading;
+@property (nonatomic, assign) BOOL isTopNoMore;
 
 @end
 
@@ -427,6 +432,89 @@ static inline CGFloat KBChatAbsTimeInterval(NSTimeInterval interval) {
     }
 }
 
+#pragma mark - Top Status
+
+- (void)showTopLoading {
+    self.isTopLoading = YES;
+    self.isTopNoMore = NO;
+    [self updateTopStatusView];
+}
+
+- (void)hideTopLoading {
+    self.isTopLoading = NO;
+    [self updateTopStatusView];
+}
+
+- (void)showNoMoreData {
+    self.isTopNoMore = YES;
+    self.isTopLoading = NO;
+    [self updateTopStatusView];
+}
+
+- (void)hideNoMoreData {
+    self.isTopNoMore = NO;
+    [self updateTopStatusView];
+}
+
+- (void)updateTopStatusView {
+    BOOL shouldShow = self.isTopLoading || self.isTopNoMore;
+    if (!shouldShow) {
+        self.topStatusView.hidden = YES;
+        return;
+    }
+    
+    if (!self.topStatusView) {
+        self.topStatusView = [[UIView alloc] initWithFrame:CGRectZero];
+        self.topStatusView.backgroundColor = [UIColor clearColor];
+        self.topStatusView.userInteractionEnabled = NO;
+        
+        self.topLoadingIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleMedium];
+        self.topLoadingIndicator.hidesWhenStopped = YES;
+        [self.topStatusView addSubview:self.topLoadingIndicator];
+        
+        self.topStatusLabel = [[UILabel alloc] initWithFrame:CGRectZero];
+        self.topStatusLabel.font = [UIFont systemFontOfSize:12];
+        self.topStatusLabel.textColor = [[UIColor whiteColor] colorWithAlphaComponent:0.8];
+        [self.topStatusView addSubview:self.topStatusLabel];
+        
+        [self addSubview:self.topStatusView];
+    }
+    
+    if (self.isTopLoading) {
+        self.topStatusLabel.text = KBLocalized(@"Loading...");
+        [self.topLoadingIndicator startAnimating];
+    } else if (self.isTopNoMore) {
+        self.topStatusLabel.text = KBLocalized(@"No more data");
+        [self.topLoadingIndicator stopAnimating];
+    }
+    
+    CGFloat width = CGRectGetWidth(self.tableView.bounds);
+    if (width <= 0) {
+        width = CGRectGetWidth(self.bounds);
+    }
+    CGFloat height = 32;
+    self.topStatusView.frame = CGRectMake(0, 0, width, height);
+    self.topStatusView.hidden = NO;
+    [self bringSubviewToFront:self.topStatusView];
+    
+    CGSize labelSize = [self.topStatusLabel sizeThatFits:CGSizeMake(width - 40, height)];
+    CGFloat totalWidth = labelSize.width + (self.isTopLoading ? 20 + 6 : 0);
+    CGFloat startX = (width - totalWidth) / 2.0;
+    if (self.isTopLoading) {
+        self.topLoadingIndicator.frame = CGRectMake(startX, (height - 20) / 2.0, 20, 20);
+        self.topStatusLabel.frame = CGRectMake(CGRectGetMaxX(self.topLoadingIndicator.frame) + 6,
+                                               (height - labelSize.height) / 2.0,
+                                               labelSize.width,
+                                               labelSize.height);
+    } else {
+        self.topStatusLabel.frame = CGRectMake((width - labelSize.width) / 2.0,
+                                               (height - labelSize.height) / 2.0,
+                                               labelSize.width,
+                                               labelSize.height);
+    }
+    
+}
+
 - (void)scrollToBottom {
     [self scrollToBottomAnimated:YES];
 }

keyBoard/Class/AiTalk/V/Chat/KBPersonaChatCell.m

@@ -30,11 +30,6 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
 /// 人设名称
 @property (nonatomic, strong) UILabel *nameLabel;
 
-/// 开场白
-@property (nonatomic, strong) UILabel *openingLabel;
-
-
-
 /// 聊天消息
 @property (nonatomic, strong) NSMutableArray<KBAiChatMessage *> *messages;
 
@@ -69,6 +64,7 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
 @property (nonatomic, assign) BOOL isCurrentPersonaCell;
 @property (nonatomic, assign) BOOL shouldAutoPlayPrologueAudio;
 @property (nonatomic, assign) BOOL hasPlayedPrologueAudio;
+@property (nonatomic, assign) BOOL shouldShowOpeningMessage;
 
 @end
 
@@ -107,6 +103,8 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
     self.isCurrentPersonaCell = NO;
     self.shouldAutoPlayPrologueAudio = NO;
     self.hasPlayedPrologueAudio = NO;
+    self.shouldShowOpeningMessage = NO;
+    self.shouldShowOpeningMessage = NO;
     
     // ✅ 移除了 self.hasLoadedData = NO;
     // 这样 Cell 复用时不会重复请求数据
@@ -129,14 +127,6 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
         make.edges.equalTo(self.contentView);
     }];
     
-    // 开场白
-    [self.contentView addSubview:self.openingLabel];
-    [self.openingLabel mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.top.equalTo(self.contentView).offset(KB_NAV_TOTAL_HEIGHT);
-        make.left.equalTo(self.contentView).offset(40);
-        make.right.equalTo(self.contentView).offset(-40);
-    }];
-    
     // 头像
     [self.contentView addSubview:self.avatarImageView];
     [self.avatarImageView mas_makeConstraints:^(MASConstraintMaker *make) {
@@ -172,8 +162,9 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
     
     // 聊天列表
     [self.contentView addSubview:self.chatView];
+    CGFloat topY = KB_STATUSBAR_HEIGHT + 15;
     [self.chatView mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.top.equalTo(self.contentView).offset(KB_NAV_TOTAL_HEIGHT);
+        make.top.equalTo(self.contentView).offset(topY);
         make.left.right.equalTo(self.contentView);
         make.bottom.equalTo(self.avatarImageView.mas_top).offset(-10);
     }];
@@ -220,8 +211,6 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
     [self.avatarImageView sd_setImageWithURL:[NSURL URLWithString:persona.avatarUrl]
                             placeholderImage:[UIImage imageNamed:@"placeholder_avatar"]];
     self.nameLabel.text = persona.name;    
-    self.openingLabel.text = persona.shortDesc.length > 0 ? persona.shortDesc : persona.prologue;
-    
     // 关键修复：清空消息时停止音频播放，避免状态混乱
     [self.chatView stopPlayingAudio];
 
@@ -232,6 +221,8 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
     NSLog(@"[KBPersonaChatCell] contentView.frame: %@", NSStringFromCGRect(self.contentView.frame));
 
     if (self.messages.count > 0) {
+        self.shouldShowOpeningMessage = NO;
+        [self removeOpeningMessageIfNeeded];
         [self.chatView updateIntroFooterText:nil];
         [self ensureOpeningMessageAtTop];
         // 同步缓存，避免下次从缓存缺少开场白
@@ -241,8 +232,9 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
                                keepOffset:NO
                           scrollToBottom:YES];
     } else {
+        self.shouldShowOpeningMessage = NO;
         [self.chatView clearMessages];
-        [self.chatView updateIntroFooterText:persona.prologue];
+        [self.chatView updateIntroFooterText:nil];
     }
     
     NSLog(@"[KBPersonaChatCell] ========== setPersona 结束 ==========");
@@ -269,6 +261,10 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
     }
     
     self.isLoading = YES;
+    BOOL isLoadMore = (self.currentPage > 1);
+    if (isLoadMore) {
+        [self.chatView showTopLoading];
+    }
     
     if (self.currentPage == 1) {
         [self.chatView resetNoMoreData];
@@ -291,8 +287,12 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
             NSLog(@"[KBPersonaChatCell] 加载聊天记录失败：%@", error.localizedDescription);
             dispatch_async(dispatch_get_main_queue(), ^{
                 strongSelf.isLoading = NO;
+                if (isLoadMore) {
+                    [strongSelf.chatView hideTopLoading];
+                }
                 [strongSelf.chatView endLoadMoreWithHasMoreData:strongSelf.hasMoreHistory];
                 if (strongSelf.currentPage == 1 && strongSelf.persona.prologue.length > 0) {
+                    strongSelf.shouldShowOpeningMessage = YES;
                     [strongSelf showOpeningMessage];
                 }
             });
@@ -306,6 +306,7 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
         if (loadedPage == 1) {
             BOOL isEmpty = (pageModel.total == 0);
             strongSelf.shouldAutoPlayPrologueAudio = isEmpty && (strongSelf.persona.prologueAudio.length > 0);
+            strongSelf.shouldShowOpeningMessage = isEmpty;
             if (!strongSelf.shouldAutoPlayPrologueAudio) {
                 [strongSelf.chatView stopPlayingAudio];
             } else {
@@ -317,6 +318,8 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
                 [strongSelf.chatView clearMessages];
                 [strongSelf.chatView updateIntroFooterText:strongSelf.persona.prologue];
                 [strongSelf.chatView endLoadMoreWithHasMoreData:strongSelf.hasMoreHistory];
+                [strongSelf.chatView hideTopLoading];
+                [strongSelf.chatView hideNoMoreData];
                 strongSelf.isLoading = NO;
             });
             strongSelf.currentPage++;
@@ -355,6 +358,9 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
         if (loadedPage == 1) {
             // 第一页，直接赋值
             strongSelf.messages = newMessages;
+            if (!strongSelf.shouldShowOpeningMessage) {
+                [strongSelf removeOpeningMessageIfNeeded];
+            }
             [strongSelf ensureOpeningMessageAtTop];
         } else {
             // 后续页，继续加载历史
@@ -375,6 +381,9 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
         
         // 刷新 UI
         dispatch_async(dispatch_get_main_queue(), ^{
+            if (isLoadMore) {
+                [strongSelf.chatView hideTopLoading];
+            }
             if (loadedPage == 1) {
                 NSLog(@"[KBPersonaChatCell] 刷新 UI - loadedPage: %ld, keepOffset: 0, scrollToBottom: 1", 
                       (long)loadedPage);
@@ -394,6 +403,11 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
                 }
             }
             [strongSelf.chatView endLoadMoreWithHasMoreData:strongSelf.hasMoreHistory];
+            if (!strongSelf.hasMoreHistory && strongSelf.messages.count > 0) {
+                [strongSelf.chatView showNoMoreData];
+            } else {
+                [strongSelf.chatView hideNoMoreData];
+            }
             
             // ✅ 保存到缓存（包含开场白）
             [[KBAIChatMessageCacheManager shared] saveMessages:strongSelf.messages
@@ -449,6 +463,9 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
 }
 
 - (void)showOpeningMessage {
+    if (!self.shouldShowOpeningMessage) {
+        return;
+    }
     if (self.messages.count == 0) {
         [self.chatView clearMessages];
         [self.chatView updateIntroFooterText:self.persona.prologue];
@@ -487,6 +504,9 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
 }
 
 - (void)ensureOpeningMessageAtTop {
+    if (!self.shouldShowOpeningMessage) {
+        return;
+    }
     NSString *prologue = [self currentPrologueText];
     if (prologue.length == 0) {
         return;
@@ -507,6 +527,14 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
     }
 }
 
+- (void)removeOpeningMessageIfNeeded {
+    NSInteger index = [self openingMessageIndexInMessages];
+    if (index == NSNotFound) {
+        return;
+    }
+    [self.messages removeObjectAtIndex:index];
+}
+
 - (nullable KBAiChatMessage *)openingMessageInMessages {
     NSInteger index = [self openingMessageIndexInMessages];
     if (index == NSNotFound) {
@@ -548,6 +576,7 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
         
         self.shouldAutoPlayPrologueAudio = NO;
         self.hasPlayedPrologueAudio = NO;
+        self.shouldShowOpeningMessage = YES;
         [self.chatView stopPlayingAudio];
         
         // 清空消息数组
@@ -907,17 +936,6 @@ static NSString * const KBChatSessionDidResetNotification = @"KBChatSessionDidRe
     return _nameLabel;
 }
 
-- (UILabel *)openingLabel {
-    if (!_openingLabel) {
-        _openingLabel = [[UILabel alloc] init];
-        _openingLabel.font = [UIFont systemFontOfSize:14];
-        _openingLabel.textColor = [[UIColor whiteColor] colorWithAlphaComponent:0.9];
-        _openingLabel.textAlignment = NSTextAlignmentCenter;
-        _openingLabel.numberOfLines = 2;
-    }
-    return _openingLabel;
-}
-
 - (KBChatTableView *)chatView {
     if (!_chatView) {
         _chatView = [[KBChatTableView alloc] init];