Ios UIDocumentPickerViewController-隐藏位置按钮

我正在开发一个应用程序，该应用程序能够从其他云资源导入音频文件，这些云资源提供UIDocumentPickerViewControllerExtension来选择该文件，但左上方有一个位置按钮，我想删除它

下面是我的代码：

let menupicker = UIDocumentMenuViewController(documentTypes: [kUTTypeAudio as String], in: .import)
menupicker.delegate = self
self.present(menupicker, animated: true, completion: nil)



func documentMenu(_ documentMenu: UIDocumentMenuViewController, didPickDocumentPicker documentPicker: UIDocumentPickerViewController) {
    documentPicker.delegate = self
    documentPicker.navigationItem.leftBarButtonItem = nil
    self.present(documentPicker, animated: true) { 
        documentPicker.navigationItem.leftBarButtonItem = nil
        documentPicker.navigationItem.backBarButtonItem = nil
        documentPicker.navigationItem.hidesBackButton = true
    }
}

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我正在寻找相同的解决方案，但不能。据我理解，这是不可能的。 如果在UIDocumentPickerViewController中循环，它实际上有一个子视图控制器，其类型为“\u UIResilientRemoteViewContainerServiceController”

let picker=UIDocumentPickerViewController（documentTypes:supportDocTypes，in:.导入）
picker.delegate=self
当前（选择器，动画：真）{
print（picker.childViewControllers）//您将得到如下结果：[]
}

这是不可访问的，但是我们可以通过循环访问它，最终您将获得一些其他私有组件，例如_RemoteView

let picker = UIDocumentPickerViewController(documentTypes: supportDocTypes, in: .import)
picker.delegate = self
present(picker, animated: true) {
    print(picker.childViewControllers) // you will get something like this: [<_UIResilientRemoteViewContainerViewController: 0x102e956c0>]
}