iOS代码实现九宫格

#define ScreenW [UIScreen mainScreen].bounds.size.width
#define ScreenH [UIScreen mainScreen].bounds.size.height

// 数据
    NSArray *images = @[@"publish-boke", @"publish-weixin", @"publish-QQ", @"publish-offline"];
    NSArray *titles = @[@"发博客", @"发微信", @"发QQ",@"离线下载"];
    
    // 中间的6个按钮
    int maxCols = 3;
    CGFloat buttonW = 72;
    CGFloat buttonH = buttonW + 30;
    CGFloat buttonStartY = (ScreenH - 2 * buttonH) * 0.5;
    CGFloat buttonStartX = 20;
    CGFloat xMargin = (ScreenW - 2 * buttonStartX - maxCols * buttonW) / (maxCols - 1);
    for (int i = 0; i<images.count; i++) {
        VerticalButton *button = [[VerticalButton alloc] init];
        // 设置内容
        button.titleLabel.font = [UIFont systemFontOfSize:14];
        [button setTitle:titles[i] forState:UIControlStateNormal];
        [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
        [button setImage:[UIImage imageNamed:images[i]] forState:UIControlStateNormal];
        
        // 设置frame
        button.width = buttonW;
        button.height = buttonH;
        int row = i / maxCols;
        int col = i % maxCols;
        button.x = buttonStartX + col * (xMargin + buttonW);
        button.y = buttonStartY + row * buttonH;
        [self.view addSubview:button];
    }