self.chatBox =[[LXChatBox alloc]initWithFrame:CGRectMake(0, KScreenH - HEIGHT_TABBAR, KScreenW, HEIGHT_TABBAR)];

//设置最大行数限制（稍后会优化）
self.chatBox.maxVisibleLine = 3;

self.chatBox.delegate = self;

[self.view addSubview:self.chatBox];

 //实现以下代理即可 ，返回聊天键盘的高度 与发送消息，目前只支持文本消息
-(void)changeStatusChat:(CGFloat)chatBoxY{

self.tableview.frame = CGRectMake(0, 64, KScreenW, chatBoxY - 20-64);
 [self.tableview scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:self.array.count -1 inSection:0]  atScrollPosition:UITableViewScrollPositionBottom animated:NO];
 }
//发送消息的代理方法
 -(void)chatBoxSendTextMessage:(NSString *)message{

NSAttributedString *attribute =[LXEmotionManager transferMessageString:message font:[UIFont systemFontOfSize:16.0] lineHeight:[UIFont systemFontOfSize:16.0].lineHeight];

[self.array addObject:attribute];

[self.tableview reloadData];
[self.tableview scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:self.array.count -1 inSection:0]  atScrollPosition:UITableViewScrollPositionBottom animated:NO];

 }