iOS--九宫格布局

[self rankWithTotalColumns:2 andWithAppW:180 andWithAppH:170];

//九宫格布局
- (void)rankWithTotalColumns:(int)totalColumns andWithAppW:(int)appW andWithAppH:(int)appH{
    //总列数
    int _totalColumns = totalColumns;

    //view尺寸
    CGFloat _appW = appW;
    CGFloat _appH = appH;

    //横向间隙 (控制器view的宽度 － 列数＊应用宽度)/(列数 ＋ 1)
    CGFloat margin = (self.view.frame.size.width - (_totalColumns * 180)) / (_totalColumns + 1);

    NSLog(@"%lu",(unsigned long)self.TitleList.count);

    for (int index = 0; index < self.TitleList.count; index++) {
        //创建一个小框框//
        UIView *appView = [[UIView alloc] init];
        appView.backgroundColor = [UIColor whiteColor];
        appView.layer.borderColor = [[UIColor colorWithRed:242/255.0 green:242/255.0 blue:242/255.0 alpha:1] CGColor];
        appView.layer.borderWidth = 1;

        DataOldBody *item =[self.TitleList objectAtIndex:index];

        // 添加图片
        UIButton *iconView = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 180, 120)];
        UIImage *normal = [UIImage imageNamed:item.CharPicName];
        [iconView setBackgroundImage:normal forState:UIControlStateNormal];

        //添加点击事件
        [iconView addTarget:self action:@selector(handTap:) forControlEvents:UIControlEventTouchUpInside];
        [iconView setTag:item.CharId];
        [appView addSubview:iconView];

        //添加简介信息
        UILabel *label = [[UILabel alloc] init];
        label.text = item.CharBodyText;
        label.frame = CGRectMake(0, 123, 180, 45);
        label.font = [UIFont fontWithName:@"Kailasa" size:13];
        label.textAlignment = NSTextAlignmentCenter;
        label.numberOfLines = 2;
        [appView addSubview:label];

        if (moonAndSuns) {
            label.backgroundColor = [UIColor colorWithRed:54/255.0 green:54/255.0 blue:54/255.0 alpha:1];
            label.textColor = [UIColor whiteColor];

        }else{
            label.backgroundColor = [UIColor whiteColor];
            label.textColor = [UIColor blackColor];
        }
        //创建结束//

        //计算框框的位置...行号列号从0开始
        //行号
        int row = index / totalColumns; //行号为框框的序号对列数取商
        //列号
        int col = index % totalColumns; //列号为框框的序号对列数取余

        CGFloat appX = margin + col * (appW + margin); // 每个框框靠左边的宽度为 (平均间隔＋框框自己的宽度）
        CGFloat appY = 20 + row * (appH + margin); // 每个框框靠上面的高度为 平均间隔＋框框自己的高度

        appView.frame = CGRectMake(appX, appY, _appW, _appH);

        [self.scrollView addSubview:appView];
    }
}

-(void)handTap:(id)sender{
    NSInteger i = [sender tag];
    NSLog(@"%ld",(long)i);
    OldFirstBodyViewController *OldFirstBody = [self.storyboard instantiateViewControllerWithIdentifier:@"OldFirstBody"];
    OldFirstBody.index = i;
    [self.navigationController pushViewController:OldFirstBody animated:YES];

}