ios - PDF 文件无法在 UIDocumentInteractionController 中打开

Question

我正在模拟器上工作，没有像adobe这样的应用程序来打开pdf文件....我正在使用UIDocumentInteractionController来打开pdf文件，如下所示。

let url=URL(fileURLWithPath: "/Users/sai/Library/Developer/CoreSimulator/Devices/425D8615-ADEC-4334-A639-C30B1E675EFA/data/Containers/Data/Application/AB3787BF-F6AC-4111-9847-A0FDC4E899F8/tmp/samplepdf.pdf")

    print("--------------------------------- str is \(url)")
    if (url != nil) {
        // Initialize Document Interaction Controller
        self.documentInteractionController = UIDocumentInteractionController(url: url)
        // Configure Document Interaction Controller
        self.documentInteractionController?.delegate = self
        // Preview PDF
        self.documentInteractionController?.presentOptionsMenu(from: self.view.frame, in: self.view, animated: true)
    }


  func documentInteractionControllerViewControllerForPreview(_ controller: UIDocumentInteractionController) -> UIViewController {
            return self
  }

我的屏幕显示如下 No pdf is being displayed here...is it because there is no app in my simulator which could open pdf files?

Answer 1

不确定是否有模拟器应用程序可以处理 pdf 文档 - 也许是新闻？但是您只需将 webView 添加到 View Controller 并使用它来查看 pdf。

@IBOutlet weak var webView: UIWebView!

对您的网址进行常规安全检查，然后:

webView.loadRequest(NSURLRequest(url: url as URL) as URLRequest)