ios 开发视图界面动态渲染

#import "MyView.h"
IB_DESIGNABLE

@interface MyView ()
@property (nonatomic, strong) IBInspectable UIColor * borderColor;
@property (nonatomic, assign) IBInspectable CGFloat borderWidth;
@property (nonatomic, assign) IBInspectable CGFloat cornerRadius;
@end

@implementation MyView

- (void)setBorderColor:(UIColor *)borderColor {
    self.layer.borderColor = borderColor.CGColor;
}

- (void)setBorderWidth:(CGFloat)borderWidth {
    self.layer.borderWidth = borderWidth;
}

-(void)setCornerRadius:(CGFloat)cornerRadius {
    self.layer.cornerRadius = cornerRadius;
}

@end

import UIKit
@IBDesignable
class TestVIew: UIView {
    
    @IBInspectable var borderColor: UIColor! = UIColor.clearColor() {
        didSet {
            self.layer.borderColor = borderColor.CGColor
        }
    }
    
    @IBInspectable var borderWidth: CGFloat = 0 {
        didSet {
            self.layer.borderWidth = borderWidth
        }
    }
    @IBInspectable var cornerRadius: CGFloat = 0 {
        didSet {
            self.layer.cornerRadius = cornerRadius
        }
    }
}