相关疑难解决方法(0)

UIDocumentBrowserViewController在iOS 13上进行测试时，我遇到了一个非常奇怪的问题。importHandler(newDocumentURL, .move)似乎无缘无故地崩溃了：

[DocumentManager] Cannot create urlWrapper for url file:///.../tmp/23720D22-BC1D-4E7B-A7AE-A1C8B0293F9E.txt. 
error Error Domain=NSPOSIXErrorDomain Code=22 "couldn't issue sandbox extension com.apple.app-sandbox.read-write for '/.../tmp/23720D22-BC1D-4E7B-A7AE-A1C8B0293F9E.txt': 
Invalid argument" UserInfo={NSDescription=couldn't issue sandbox extension com.apple.app-sandbox.read-write for '/.../tmp/23720D22-BC1D-4E7B-A7AE-A1C8B0293F9E.txt': Invalid argument}.

这是一个复制的两步过程：

• 创建一个新的Xcode项目“基于文档的应用程序”

• 在 documentBrowser(_: , didRequestDocumentCreationWithHandler:)

  let newDocumentURL: URL? =
      URL(fileURLWithPath: NSTemporaryDirectory())
          .appendingPathComponent(UUID().uuidString)
          .appendingPathExtension("txt")
  
  // Set the URL for the new document here. Optionally, you can present a template chooser before calling the importHandler.
  // Make sure the importHandler is always called, even if the …

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