如何自定義UITableview右邊，上邊和下邊框？

Question

如何在UITableview中快速設置右邊，左邊，上邊和下邊框的顏色？

謝謝，

Answer 1

試試這個全邊框：

yourtable.layer.masksToBounds = true
yourtable.layer.borderColor = UIColor( red: 153/255, green: 153/255, blue:0/255, alpha: 1.0 ).CGColor
yourtable.layer.borderWidth = 2.0

這是針對底部邊框：

let border = CALayer()
let width = CGFloat(2.0)
border.borderColor = UIColor.darkGrayColor().CGColor
border.frame = CGRect(x: 0, y: yourtable.frame.size.height - width, width:  yourtable.frame.size.width, height: yourtable.frame.size.height)

border.borderWidth = width
yourtable.layer.addSublayer(border)
yourtable.layer.masksToBounds = true

Answer 2

extension UIView {
    func addBorderTop(size size: CGFloat, color: UIColor) {
        addBorderUtility(x: 0, y: 0, width: frame.width, height: size, color: color)
    }
    func addBorderBottom(size size: CGFloat, color: UIColor) {
        addBorderUtility(x: 0, y: frame.height - size, width: frame.width, height: size, color: color)
    }
    func addBorderLeft(size size: CGFloat, color: UIColor) {
        addBorderUtility(x: 0, y: 0, width: size, height: frame.height, color: color)
    }
    func addBorderRight(size size: CGFloat, color: UIColor) {
        addBorderUtility(x: frame.width - size, y: 0, width: size, height: frame.height, color: color)
    }
    private func addBorderUtility(x x: CGFloat, y: CGFloat, width: CGFloat, height: CGFloat, color: UIColor) {
        let border = CALayer()
        border.backgroundColor = color.CGColor
        border.frame = CGRect(x: x, y: y, width: width, height: height)
        layer.addSublayer(border)
    }
}

我將在某些時候開源我的擴展類。

編輯：在這里，我更新這里的功能https://github.com/goktugyil/EZSwiftExtensions

Answer 3

如果你想使用下面代碼為swift 3的顏色使用邊框到tableview：

yourTableView.layer.borderColor = UIColor.gray.cgColor
yourTableView.layer.borderWidth = 1.0