StepCircleView.swift
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//
// StepCircleView.swift
// Twear
//
// Created by yangbin on 2022/1/6.
//
import UIKit
class StepCircleView: UIView {
private lazy var bgLayer: CAShapeLayer = CAShapeLayer()
// 延迟初始化进度条层，采用 stroke 来绘制边框
private lazy var progressLayer: CAShapeLayer = CAShapeLayer()
var value: Int = 0 {
didSet {
progressLayer.strokeEnd = CGFloat(value)/100
}
}
@IBOutlet weak var stepLabel: UILabel!
@IBOutlet weak var locLabel1: UILabel!
@IBOutlet weak var locLabel2: UILabel!
override init(frame: CGRect) {
super.init(frame: frame)
initFromNib()
setupUI()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
initFromNib()
setupUI()
}
override class func awakeFromNib() {
super.awakeFromNib()
}
private func setupUI() {
locLabel1.text = LocString("步数")
locLabel2.text = LocString("步")
// 0.25 透明度的白色背景
bgLayer.fillColor = nil
bgLayer.strokeColor = LineColor.cgColor
bgLayer.lineWidth = 10
bgLayer.lineCap = .round
layer.addSublayer(bgLayer)
// 边框全白，边框宽度为 4
// progressLayer = CAShapeLayer()
progressLayer.fillColor = nil
progressLayer.strokeColor = UIColor.rgbColorFromHex(0x1DDCC5).cgColor
progressLayer.lineWidth = 10
layer.addSublayer(progressLayer)
let radius = bounds.height / 2 - 5
let end = CGFloat(Double.pi * 2) + CGFloat(Double.pi / 2 * 0.3)
bgLayer.path = UIBezierPath(arcCenter: CGPoint(rect: bounds), radius: radius,
startAngle: CGFloat(Double.pi / 2 * 1.7), endAngle: end,
clockwise: true).cgPath
// = progressPath.cgPath
// 设置 start 从 12点钟方向开始（默认是3点钟方向）
// end = 360度 * progress - start
// 设置为 顺时针 方向
let progressPath = UIBezierPath(arcCenter: CGPoint(rect: bounds), radius: radius,
startAngle: CGFloat(Double.pi / 2 * 1.7), endAngle: end,
clockwise: true)
progressLayer.lineCap = .round
progressLayer.path = progressPath.cgPath
progressLayer.strokeEnd = 0
}
private func initFromNib() {
if let view = UINib(nibName: "StepCircleView", bundle: Bundle(for: type(of: self))).instantiate(withOwner: self, options: nil).first as? UIView {
view.frame = bounds
self.addSubview(view)
}
}
override func layoutSubviews() {
refreshUI()
}
private func refreshUI() {
}
/*
// Only override draw() if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
override func draw(_ rect: CGRect) {
// Drawing code
}
*/
}