多行多列按钮多选1

for (NSInteger i=0; i<self.dataArr.count; i++) {
        //行和列
        NSInteger row = i/colums;
        NSInteger col = i%colums;        
        //计算x和y
        CGFloat circleX = SLMargin+((circleWH+hSpace)*col);
        CGFloat circleY = self.floorButton.bottom+16+ (circleWH+vSpace)*row;
        UIButton *circleButton = [UIButton buttonWithType:UIButtonTypeCustom];\
        [self.scrollView addSubview:circleButton];
        [circleButton setImage:[UIImage imageNamed:@"home_fire"] forState:UIControlStateNormal];
        circleButton.backgroundColor = [UIColor hex:@"#F9F9F9"];
        [circleButton setTitleColor:UIColor.greenColor forState:UIControlStateNormal];
        circleButton.frame = CGRectMake(circleX, circleY, circleWH, circleWH);
        circleButton.layer.cornerRadius = circleWH/2.0;
        [circleButton addTarget:self action:@selector(clickCircle:) forControlEvents:UIControlEventTouchUpInside];
        circleButton.backgroundColor = CustomBgColor;
        if (i==0) {
            //tmpBtn用于记录选中状态
            self.tmpBtn = circleButton;
            self.tmpBtn.backgroundColor = UIColor.orangeColor;
        }
    }

//点击事件
- (void)clickCircle:(UIButton *)sender
{
    if (self.tmpBtn == sender) {
        sender.backgroundColor = UIColor.orangeColor;
    }else{
        sender.backgroundColor = UIColor.orangeColor;
        _tmpBtn.backgroundColor = CustomBgColor;
    }
    self.tmpBtn = sender;
}