//
//  CircleView.swift
//  PaiAi-Guide
//
//  Created by mac on 2016/12/13.
//  Copyright © 2016年 mac. All rights reserved.
//

import UIKit

class CircleView: UIView {

    var lineColor = UIColor(red: 0, green: 165.0/255, blue: 0, alpha: 1)
    var lineWidth: CGFloat = 0.5
    var pulsingCount = 4

    override func draw(_ rect: CGRect) {

        for i in 0...pulsingCount {
            let context = UIGraphicsGetCurrentContext()
            context?.setStrokeColor(lineColor.cgColor)
            context?.setLineWidth(lineWidth)
            let radius = (self.frame.height / 2 - borderWidth) * CGFloat(i) / CGFloat(pulsingCount)
            context?.addArc(center: CGPoint(x: self.frame.width / 2, y: self.frame.height / 2), radius: radius, startAngle: 0, endAngle: 2.0 * .pi, clockwise: true)
            context?.drawPath(using: .stroke)
        }
    }

}