使用swift在iOS上处理在PDF查看器中单击的链接

import UIKit
import PDFKit

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建PDFView实例
        let pdfView = PDFView()
        view.addSubview(pdfView)
        
        // 加载PDF文件
        if let pdfDocument = PDFDocument(url: Bundle.main.url(forResource: "example", withExtension: "pdf")!) {
            pdfView.document = pdfDocument
        }
        
        // 监听链接点击事件
        pdfView.delegate = self
    }
}

extension ViewController: PDFViewDelegate {
    
    func pdfView(_ pdfView: PDFView, didClickLink link: PDFLink) {
        if let uri = link.url {
            // 处理URI链接
            UIApplication.shared.open(uri, options: [:], completionHandler: nil)
        } else if let destination = link.destination {
            // 处理页面内链接
            pdfView.go(to: destination)
        }
    }
}