swift - UIView 设置背景色和背景图片

代码如下：

        let page = UIView()
        page.frame = self.view.bounds
        //直接设置颜色
        page.backgroundColor = UIColor.greenColor()
        //设置16进制的颜色
        page.backgroundColor = UIColor(red: 0x37/255, green: 0xba/255, blue: 0x46/255, alpha: 1)
        //设置背景图片(如果图片太小，会自动平铺)
        page.backgroundColor = UIColor.init(patternImage: UIImage(named: "11.jpg")!)
        
        self.view.addSubview(page)