我有一个邮件API，可以发送一些信息和文档。我只发送文件文件，但我想在UIDocumentPickerView中再显示一个选项。
如何显示“文档，照片，相机等”列表。与图像相同的选择器？
我的代码是：
@available(iOS 8.0, *)
public func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL) {
let urlData = url as URL
let theFile = urlData.absoluteString
self.documentName.text = "\(theFileName)"
}
@available(iOS 8.0, *)
public func documentMenu(_ documentMenu: UIDocumentMenuViewController, didPickDocumentPicker documentPicker: UIDocumentPickerViewController) {
documentPicker.delegate = self
present(documentPicker, animated: true, completion: nil)
}
func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {
dismiss(animated: true, completion: nil)
}
func mySpecialFunction(){
let importMenu = UIDocumentMenuViewController(documentTypes: [String(kUTTypePDF)], in: .import)
importMenu.delegate = self
importMenu.modalPresentationStyle = .formSheet
self.present(importMenu, animated: true, completion: nil)
}