定位并解决弹幕不显示的问题。

@@ -107,6 +107,7 @@
         self.emojiCountLabel.text = @"0";
         self.timeLabel.text = @"00:00:00";
         self.onlineCountLabel.text = @"0";
+        exit(2);
     });
 }
 

@@ -270,7 +270,9 @@
                  }
                 case SOCKET_TAG_RESIVE_MSG:
                 {
-                    [self.barrageViewController insertItem:resDic];
+                    dispatch_async(dispatch_get_main_queue(), ^{
+                        [self.barrageViewController insertItem:resDic];
+                    });
                 }
                     break;
                 case SOCKET_TAG_NotifyPRAISE:

@@ -113,7 +113,7 @@
     
     
     [self setCornerForAvatarImageView];
-    NSString *avatarUrlString = [msgModel.avatar yh_splitUrlWithWidth:[NSString stringWithFormat:@"%.0lf",CGRectGetWidth(self.avatarImageView.bounds)] height:[NSString stringWithFormat:@"%.0lf",CGRectGetWidth(self.avatarImageView.bounds)]];
+    NSString *avatarUrlString = [msgModel.avatar yh_splitUrlWithWidth:[NSString stringWithFormat:@"%.0lf",CGRectGetWidth(self.avatarImageView.bounds)*6] height:[NSString stringWithFormat:@"%.0lf",CGRectGetWidth(self.avatarImageView.bounds)*6]];
     [self.avatarImageView sd_setImageWithURL:[NSURL URLWithString:avatarUrlString] placeholderImage:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {
         
         if (image) {

@@ -97,14 +97,13 @@
 {
     
     __weak typeof (self) weakSelf = self;
-    __strong typeof (weakSelf) strongSelf = weakSelf;
     
     if (itemDic && ![itemDic isEqual:[NSNull null]] && !IsStrEmpty([itemDic objectForKey:@"name"])) {
         if (0) {
 //            [self greenChannel:itemDic];
         } else {
             
-            if ([[itemDic objectForKey:@"cmd"] longValue] == 4 && !self.manualScrolling) {
+            if ([[itemDic objectForKey:@"cmd"] longValue] == 4/*user join*/ && !self.manualScrolling) {
                 // 如果是用户加入的消息，则不加入到缓冲区
                 [self newUserJoin:itemDic];
             } else {
@@ -112,8 +111,13 @@
                 dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
                     
                     YH_BarrageMsgModel *message = [[YH_BarrageMsgModel alloc]initWithDictionary:itemDic error:nil];
+                    if (_messageBuffer) {
+                        [_messageBuffer enqueue:message];
+                    } else {
+                        _messageBuffer = [NSMutableArray new];
+                        [_messageBuffer enqueue:message];
+                    }
                     
-                    [strongSelf->_messageBuffer enqueue:message];
                     
                     dispatch_async(dispatch_get_main_queue(), ^{
                         if (weakSelf.manualScrolling) {