스토리지 보드에서 사용자 정의 뷰 쉽게 보기

    override func drawRect(rect: CGRect) {
        #if TARGET_INTERFACE_BUILDER

        CGContextSetFillColorWithColor(UIGraphicsGetCurrentContext(),
            UIColor(red:0.941, green:0.941, blue:0.941, alpha: 1).CGColor)
        CGContextFillRect(UIGraphicsGetCurrentContext(), rect)

        var className = NSStringFromClass(self.dynamicType)
        className = className.substringFromIndex(className.rangeOfString(".")!.endIndex)
        let attr = [
            NSForegroundColorAttributeName : UIColor(red:0.796, green:0.796, blue:0.796, alpha: 1),
            NSFontAttributeName : UIFont(name: "Helvetica-Bold", size: 28)!
        ]
        let size = className.boundingRectWithSize(rect.size, options: NSStringDrawingOptions.allZeros, attributes: attr, context: nil)
        className.drawAtPoint(CGPointMake(rect.width/2 - size.width/2, rect.height/2 - size.height/2), withAttributes: attr)

        if rect.height > 78.0 {
            let subTitle:NSString = "Prototype Content"
            let subAttr = [
                NSForegroundColorAttributeName : UIColor(red:0.796, green:0.796, blue:0.796, alpha: 1),
                NSFontAttributeName : UIFont(name: "Helvetica-Bold", size: 17)!
            ]
            let subTitleSize = subTitle.boundingRectWithSize(rect.size, options: NSStringDrawingOptions.allZeros, attributes: subAttr, context: nil)
            subTitle.drawAtPoint(CGPointMake(rect.width/2 - subTitleSize.width/2, rect.height/2 - subTitleSize.height/2 + 30), withAttributes: subAttr)
        }

        #endif
    }