如何使用Swift 4在iOS11中获取已安装应用程序的列表？

import UIKit

func getInstalledApps() -> [String] {
    var installedApps = [String]()
    
    if let appURLs = FileManager.default.urls(for: .applicationDirectory, in: .systemDomainMask) {
        for appURL in appURLs {
            if let appBundleURLs = FileManager.default.urls(for: .bundleURL, in: appURL) {
                for appBundleURL in appBundleURLs {
                    if let appBundle = Bundle(url: appBundleURL) {
                        if let appName = appBundle.object(forInfoDictionaryKey: "CFBundleName") as? String {
                            installedApps.append(appName)
                        }
                    }
                }
            }
        }
    }
    
    return installedApps
}

let installedApps = getInstalledApps()
print(installedApps)