swift 自定义TextField 的边框颜色和 左右 视图

import UIKit

class HZXTextField:UITextField {

//swift的二次构造

   override init(frame:CGRect) {

       super.init(frame: frame)

    }

//便利构造 重写 init方法

 convenience init(var leftView:UIView?,frame: CGRect,var rightView:UIView?,var color:UIColor?,boardWidth:CGFloat,boardRadius :CGFloat)

    {

       self.init(frame:frame)

        self.leftViewMode =UITextFieldViewMode.Always

        self.leftViewMode = UITextFieldViewMode.Always

       self.leftView = leftView

       self.rightView = rightView

       if color == nil

        {

          //默认一个颜色

            color =UIColor(red: 0.2588, green:0.7490, blue: 0.6471, alpha:1)

        }

        self.layer.borderColor = color?.CGColor

         //边框宽度

       self.layer.borderWidth = boardWidth

        self.layer.masksToBounds =true

        //边框圆角

       self.layer.cornerRadius = boardRadius  

    }

   required init(coder aDecoder:NSCoder) {

        fatalError("init(coder:) has not been implemented")

    }

}

//直接调用即可

 overridefunc  viewDidLoad()

    {

      

        

       var huTF = HZXTextField(leftView:nil, frame: CGRectMake(40,420, 200, 40), rightView: nil, color: UIColor.orangeColor(), boardWidth: 0.8, boardRadius: 8)

       self.view.addSubview(huTF)

       

    }