[self.tableViewreloadRowsAtIndexPaths:@[[NSIndexPathindexPathForRow:i inSection:0]]withRowAnimation:UITableViewRowAnimationAutomatic];在測試的時候發現，cell的drawRect方法不執行，如果是直接reloadData  ，就沒問題，，

在log中發現了一句    This application is modifying the autolayout engine from a background thread after the engine was a  ，下面是我的通知方法，這樣在main執行緒中重新整理就沒什麼問題了，

- (void)receiveMessage:(NSNotification *)notification

{

RCMessage *message = [[notification object] objectForKey:@"message"];

if (message) {

for (NSInteger i=0; i<self.customerArray.count; i++) {

CustomerModel *model = self.customerArray[i];

if ([model.ChatRoomIdisEqualToString:message.targetId

                model.unreadMsg = @([[RCIMClientsharedRCIMClient] getUnreadCount:ConversationType_GROUPtargetId:message.targetId]);

dispatch_async(dispatch_get_main_queue(), ^{

NSArray *visiableCells = self.tableView.visibleCells;

HomeListCell *cell = [self.tableViewcellForRowAtIndexPath:[NSIndexPath

if ([visiableCells containsObject:cell]) {

                        [self.tableViewreloadRowsAtIndexPaths:@[[NSIndexPathindexPathForRow:i inSection:0]]withRowAnimation:UITableViewRowAnimationAutomatic];

                    }

                });

break;

            }

        }

    }

}