使用Swift 5.0隐藏HIChart饼图的数据标签

import UIKit
import WebKit

class ViewController: UIViewController, WKNavigationDelegate {
    
    var webView: WKWebView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建WKWebView实例
        webView = WKWebView(frame: view.bounds)
        webView.navigationDelegate = self
        view.addSubview(webView)
        
        // 加载HIChart库
        if let hiChartURL = Bundle.main.url(forResource: "highcharts", withExtension: "js") {
            webView.loadFileURL(hiChartURL, allowingReadAccessTo: hiChartURL.deletingLastPathComponent())
        }
    }
    
    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        // 创建饼图实例
        let script = """
        var chart = Highcharts.chart('container', {
            chart: {
                type: 'pie'
            },
            title: {
                text: 'My Pie Chart'
            },
            series: [{
                name: 'Data',
                data: [1, 2, 3, 4, 5]
            }]
        });
        """
        webView.evaluateJavaScript(script) { (_, error) in
            if let error = error {
                print("Failed to create pie chart: \(error)")
            } else {
                // 隐藏数据标签
                let hideLabelsScript = "chart.series[0].update({ dataLabels: { enabled: false } });"
                webView.evaluateJavaScript(hideLabelsScript) { (_, error) in
                    if let error = error {
                        print("Failed to hide data labels: \(error)")
                    } else {
                        // 更新饼图
                        let updateChartScript = "chart.redraw();"
                        webView.evaluateJavaScript(updateChartScript) { (_, error) in
                            if let error = error {
                                print("Failed to update chart: \(error)")
                            }
                        }
                    }
                }
            }
        }
    }
}