如何在SwiftChart中使用x轴的日期？

import SwiftChart

class ViewController: UIViewController {
    var chart: Chart!

    override func viewDidLoad() {
        super.viewDidLoad()

        chart = Chart(frame: CGRect(x: 0, y: 0, width: view.frame.width, height: view.frame.height))
        view.addSubview(chart)
    }
}

let data: [(date: Date, value: Double)] = [
    (date: Date(timeIntervalSince1970: 1625097600), value: 10),
    (date: Date(timeIntervalSince1970: 1625184000), value: 20),
    (date: Date(timeIntervalSince1970: 1625270400), value: 15),
    // 添加更多的日期和值
]

let series = ChartSeries(data: data.map { ($0.date, $0.value) })
chart.add(series)

let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MM/dd" // 根据需要设置日期格式

chart.xLabels = data.map { ChartAxisValueDate(date: $0.date, formatter: dateFormatter) }

chart.showXLabelsAndGrid = true // 显示x轴标签和网格线
chart.xLabelsOrientation = .vertical // 设置x轴标签方向为垂直
chart.xLabelsSkipLast = false // 不跳过最后一个x轴标签
// 添加其他自定义属性