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UIDocumentPickerViewController导入SSL证书

[英]UIDocumentPickerViewController import SSL Certificate

如何使用UIDocumentPickerViewController导入SSL证书?

我正在做这样的事情:

let documentPicker: UIDocumentPickerViewController = UIDocumentPickerViewController(documentTypes: ["public.item"], in: UIDocumentPickerMode.import)
documentPicker.delegate = self
documentPicker.modalPresentationStyle = .formSheet

if #available(iOS 11.0, *) {
    documentPicker.allowsMultipleSelection = false
}

UINavigationBar.appearance().tintColor = .green
self.present(documentPicker, animated: true, completion: completion)

但是.cer文件始终禁用选择它:

cer禁用

另外,我找不到没有扩展名的文件导入方法。

这就是我的工作方式。 首先,我必须导入移动核心服务:

import MobileCoreServices

然后,这就是我实例化UIDocumentPickerViewController

let types: NSArray = NSArray(object: kUTTypeX509Certificate as NSString)
let documentPicker: UIDocumentPickerViewController = UIDocumentPickerViewController(documentTypes: types as! [String], in: UIDocumentPickerMode.import)

顺便说一句,我只能使其与iCloud Drive ,而显然不能与Google Drive一起使用,因为存在以下错误: http : //www.openradar.me/24187873

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