Following code will help you to create dynamic UITableViewCell w.r.t to its content of message.

-(void)setChatData:(ChatMessage *)messageObj memberDict:(NSDictionary *)memberDict isCurrentUser:(BOOL)isCurrentUser{


     NSDictionary *userDict = [memberDict objectForKey:messageObj.senderId];
    [message setText:messageObj.body];

    CGRect BGframeintial = backgoundView.frame;
    BGframeintial.size.width = MIN_WIDTH + 10;
    backgoundView.frame = BGframeintial;

    CGRect messgframeintial = message.frame;
    messgframeintial.size.width = MIN_WIDTH;
    message.frame = messgframeintial;

//    message.numberOfLines = 1;

    [message sizeToFit];
    [self checkForMaxLimit];
    [message sizeToFit];

    [self setFrameForCell:isCurrentUser];

    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
//    [formatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZ"];
//    NSDate *date = [formatter dateFromString:[dict valueForKey:@"time"]];

    NSDate *date = messageObj.timeObject;
    if (date == nil) {
        [formatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZ"];
        date = [formatter dateFromString:messageObj.timeStamp];
    }

    [formatter setDateFormat:@"MMM,dd hh:mm a"];
    NSString *chatTime = [formatter stringFromDate:date];
    [time setText:chatTime];
    [time setFont:[UIFont systemFontOfSize:8]];

    [userName setText:[userDict objectForKey:@"name"]];

    [userImage setImageFromUrl:[userDict objectForKey:@"url"] borderColor:[UIColor whiteColor]];

    [self setBackgroundColor:[UIColor clearColor]];
    [self setSelectionStyle:UITableViewCellSelectionStyleNone];
}

-(void)setFrameForCell:(BOOL)iscurrentUser{
    CGRect frame = backgoundView.frame;
    frame.size.height = message.frame.size.height + 18;
    frame.size.width = message.frame.size.width + 10;


    if (iscurrentUser) {
        frame.origin.x = (CURENT_USER_LIMITED - frame.size.width);

        CGRect messgframeintial = message.frame;
        messgframeintial.origin.x = frame.origin.x + 5;
        message.frame = messgframeintial;

    }
    backgoundView.frame = frame;

    frame = time.frame;
    frame.origin.y = backgoundView.frame.origin.y + backgoundView.frame.size.height+10 - 20;
    time.frame = frame;

    backgoundView.layer.cornerRadius = 5;
}

-(void)checkForMaxLimit{
    CGSize labelSize = [message.text sizeWithFont:message.font
                                constrainedToSize:message.frame.size
                                    lineBreakMode:NSLineBreakByWordWrapping];
    int numberOfLine  =  ceilf(labelSize.height);

    if (numberOfLine/17 > 4) {
        CGRect BGframeintial = backgoundView.frame;
        BGframeintial.size.width = MAX_WIDTH + 10;
        backgoundView.frame = BGframeintial;
        CGRect messgframeintial = message.frame;
        messgframeintial.size.width = MAX_WIDTH;
        message.frame = messgframeintial;

    }


}