1

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

@@ -36,6 +36,7 @@ static const NSTimeInterval kTimestampInterval = 5 * 60; // 5 分钟
 @property (nonatomic, strong) UILabel *introFooterLabel;
 @property (nonatomic, assign) CGSize lastIntroFooterTableSize;
 @property (nonatomic, assign) BOOL applyingIntroFooter;
+@property (nonatomic, copy) NSString *remoteAudioToken;
 
 @end
 
@@ -894,6 +895,7 @@ static inline CGFloat KBChatAbsTimeInterval(NSTimeInterval interval) {
     self.introFooterText = text ?: @"";
     if (self.introFooterText.length == 0) {
         self.tableView.tableFooterView = nil;
+        self.tableView.scrollEnabled = YES;
         self.lastIntroFooterTableSize = CGSizeZero;
         self.applyingIntroFooter = NO;
         return;
@@ -907,7 +909,7 @@ static inline CGFloat KBChatAbsTimeInterval(NSTimeInterval interval) {
         self.introFooterLabel.numberOfLines = 0;
         self.introFooterLabel.font = [UIFont systemFontOfSize:14];
         self.introFooterLabel.textColor = [[UIColor whiteColor] colorWithAlphaComponent:0.9];
-        self.introFooterLabel.textAlignment = NSTextAlignmentCenter;
+        self.introFooterLabel.textAlignment = NSTextAlignmentLeft;
         [self.introFooterContainer addSubview:self.introFooterLabel];
     }
     
@@ -924,28 +926,25 @@ static inline CGFloat KBChatAbsTimeInterval(NSTimeInterval interval) {
     }
     self.lastIntroFooterTableSize = CGSizeMake(width, height);
     
-    CGFloat horizontalPadding = 24;
+    CGFloat leftPadding = 16;
     CGFloat verticalPadding = 16;
-    CGFloat labelWidth = MAX(0, width - horizontalPadding * 2);
+    CGFloat labelWidth = MAX(0, width * 0.75);
     CGSize labelSize = [self.introFooterLabel sizeThatFits:CGSizeMake(labelWidth, CGFLOAT_MAX)];
     CGFloat containerHeight = MAX(height, labelSize.height + verticalPadding * 2);
     
     self.introFooterContainer.frame = CGRectMake(0, 0, width, containerHeight);
-    self.introFooterLabel.frame = CGRectMake(horizontalPadding, verticalPadding, labelWidth, labelSize.height);
+    CGFloat labelY = containerHeight - verticalPadding - labelSize.height;
+    labelY = MAX(verticalPadding, labelY);
+    self.introFooterLabel.frame = CGRectMake(leftPadding, labelY, labelWidth, labelSize.height);
     self.tableView.tableFooterView = self.introFooterContainer;
     
     dispatch_async(dispatch_get_main_queue(), ^{
         [self.tableView layoutIfNeeded];
-        CGFloat contentHeight = self.tableView.contentSize.height;
-        CGFloat tableHeight = CGRectGetHeight(self.tableView.bounds);
         CGFloat minOffset = -self.tableView.contentInset.top;
-        CGFloat maxOffset = contentHeight - tableHeight + self.tableView.contentInset.bottom;
-        if (maxOffset < minOffset) {
-            maxOffset = minOffset;
-        }
-        CGFloat targetOffset = self.inverted ? maxOffset : minOffset;
-        [self.tableView setContentOffset:CGPointMake(0, targetOffset) animated:NO];
+        [self.tableView setContentOffset:CGPointMake(0, minOffset) animated:NO];
     });
+    
+    self.tableView.scrollEnabled = (self.messages.count > 0);
     self.applyingIntroFooter = NO;
 }
 
@@ -1383,6 +1382,62 @@ static inline CGFloat KBChatAbsTimeInterval(NSTimeInterval interval) {
     }
 }
 
+- (void)playRemoteAudioWithURLString:(NSString *)urlString {
+    if (urlString.length == 0) {
+        return;
+    }
+    
+    [self stopPlayingAudio];
+    self.remoteAudioToken = [NSUUID UUID].UUIDString;
+    NSString *token = self.remoteAudioToken;
+    
+    NSURL *url = [NSURL URLWithString:urlString];
+    if (!url) {
+        return;
+    }
+    
+    NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];
+    NSURLSession *session = [NSURLSession sessionWithConfiguration:config];
+    __weak typeof(self) weakSelf = self;
+    NSURLSessionDataTask *task = [session dataTaskWithURL:url
+                                        completionHandler:^(NSData *_Nullable data,
+                                                            NSURLResponse *_Nullable response,
+                                                            NSError *_Nullable error) {
+        __strong typeof(weakSelf) strongSelf = weakSelf;
+        if (!strongSelf) {
+            return;
+        }
+        if (![strongSelf.remoteAudioToken isEqualToString:token]) {
+            return;
+        }
+        if (error || !data || data.length == 0) {
+            return;
+        }
+        
+        dispatch_async(dispatch_get_main_queue(), ^{
+            if (![strongSelf.remoteAudioToken isEqualToString:token]) {
+                return;
+            }
+            
+            NSError *sessionError = nil;
+            AVAudioSession *audioSession = [AVAudioSession sharedInstance];
+            [audioSession setCategory:AVAudioSessionCategoryPlayback error:&sessionError];
+            [audioSession setActive:YES error:&sessionError];
+            
+            NSError *playerError = nil;
+            strongSelf.audioPlayer = [[AVAudioPlayer alloc] initWithData:data error:&playerError];
+            if (playerError || !strongSelf.audioPlayer) {
+                return;
+            }
+            strongSelf.audioPlayer.delegate = strongSelf;
+            strongSelf.audioPlayer.volume = 1.0;
+            [strongSelf.audioPlayer prepareToPlay];
+            [strongSelf.audioPlayer play];
+        });
+    }];
+    [task resume];
+}
+
 #pragma mark - Audio Preload (自动预加载，不播放)
 
 /// 预加载音频（不自动播放）