swift uiview如何绘画

问题：

uiview如何绘画

解决：

class View1 : UIView {

    override func draw(_ rect: CGRect) {
        print("YKFilterCategoryCell draw")
        super.draw(rect)
        
            let y = self.frame.size.height
            let p = UIBezierPath()
            p.move(to: CGPoint(x:0,y:y))
            p.lineWidth = 0.5
            UIColor.gray.set()
            p.addLine(to: CGPoint(x:self.frame.size.width, y:y))
            p.stroke()
            
    }
    
}

class View1 : UIView {

override func draw(_ rect: CGRect) {

print("YKFilterCategoryCell draw")

super.draw(rect)

let y = self.frame.size.height

let p = UIBezierPath()

p.move(to: CGPoint(x:0,y:y))

p.lineWidth = 0.5

UIColor.gray.set()

p.addLine(to: CGPoint(x:self.frame.size.width, y:y))

p.stroke()

}

参考O：

IT问题

程序员的疑难杂症录

swift uiview如何绘画

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