update barrage module.

@@ -97,9 +97,14 @@
     __strong typeof (weakSelf) strongSelf = weakSelf;
     
     if (itemDic && ![itemDic isEqual:[NSNull null]] && !IsStrEmpty([itemDic objectForKey:@"name"])) {
-//        if ([[itemDic objectForKey:@"uid"] isEqualToString:[GVUserDefaults standardUserDefaults].yohoId] && [[itemDic objectForKey:@"cmd"] longValue] == 5 && !self.manualScrolling) {
+        if (0) {
 //            [self greenChannel:itemDic];
-//        } else {
+        } else {
+            
+            if ([[itemDic objectForKey:@"cmd"] longValue] == 4) {
+                // 如果是用户加入的消息，则不加入到缓冲区
+                [self newUserJoin:itemDic];
+            } else {
                 // 现将数据插入到cache
                 dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
                     
@@ -127,12 +132,35 @@
                 
             }
             
-//    }
+        }
+        
+    }
     
     
     
 }
 
+- (void)newUserJoin:(NSDictionary *)item {
+    __weak typeof (self) weakSelf = self;
+    dispatch_sync(dispatch_get_main_queue(), ^{
+        [weakSelf caculateContentInset];
+        YH_BarrageMsgModel *newMessage = [[YH_BarrageMsgModel alloc]initWithDictionary:item error:nil];
+        YH_BarrageMsgModel *oldMessage = [weakSelf.dataMutableArray lastObject];
+        
+        if ([weakSelf.dataMutableArray count] && oldMessage && oldMessage.cmd == newMessage.cmd && oldMessage.cmd == 4) {
+            [weakSelf.dataMutableArray replaceObjectAtIndex:[weakSelf.dataMutableArray count]-1 withObject:newMessage];
+        } else {
+            [weakSelf.dataMutableArray addObject:newMessage];
+        }
+        
+        [weakSelf reloadData];
+        CGPoint bottomOffset = CGPointMake(0, weakSelf.contentSize.height - weakSelf.bounds.size.height);
+        [weakSelf setContentOffset:bottomOffset animated:YES];
+        
+        
+        
+    });
+}
 // 将缓冲区中的数据存入tableview的数据源
 - (void)appendCacheToDataArray {
     
@@ -209,12 +237,18 @@
     CGPoint bottomOffset = CGPointMake(0, self.contentSize.height - self.bounds.size.height);
     [self setContentOffset:bottomOffset animated:YES];
     
+    if ([self.barrageScrollingDelegate respondsToSelector:@selector(autoScollingCallback)]) {
+        [self.barrageScrollingDelegate autoScollingCallback];
+    }
+    
+    
     if (_scrollingTableViewTimer == nil) {
         _scrollingTableViewTimer = [NSTimer timerWithTimeInterval:1 target:self selector:@selector(scrollingTableViewToBottom) userInfo:nil repeats:YES];
         [[NSRunLoop mainRunLoop] addTimer:_scrollingTableViewTimer forMode:NSRunLoopCommonModes];
     }
 }
 
+
 // 判断tableview是否滑到底部
 - (BOOL)isLastTableViewCell {
     return (self.contentOffset.y >= (self.contentSize.height - self.frame.size.height));