redviewbluetriangle

redviewbluetriangle

class RedViewDraw: UIView {
    // init from code
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupView()
    }
    
    // init from xib or storyboard
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupView()
    }
    
    override func draw(_ rect: CGRect) {
        UIColor.blue.setStroke()
        UIColor.blue.setFill()
        let bP = UIBezierPath()
        bP.move(to: CGPoint(x: 0, y: 0))
        bP.lineWidth = 5.0
        bP.addLine(to: CGPoint(x: 75, y: 150))
        bP.addLine(to: CGPoint(x: 150, y: 0))
        bP.addLine(to: CGPoint(x: 0, y: 0))
        bP.stroke()
        bP.fill()
    }
    
    // common setup code
    private func setupView() {
        backgroundColor = .red
    }
}

//in playground we should have a red square
let triangleView = RedViewDraw(frame: CGRect(x: 0, y: 0, width: 150, height: 150))