在ios中点击手机附件时如何获取数据

import UIKit
import MobileCoreServices

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let documentPicker = UIDocumentPickerViewController(documentTypes: ["public.text"], in: .import)
        documentPicker.delegate = self
        present(documentPicker, animated: true, completion: nil)
    }
}

extension ViewController: UIDocumentPickerDelegate {
    func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
        guard let url = urls.first else { return }
        // 处理选中的文件
    }
}

import UIKit

class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?

    func application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void) -> Bool {
        if userActivity.activityType == NSUserActivityTypeBrowsingWeb, let url = userActivity.webpageURL {
            // 处理Universal Link
        }
        return true
    }
}