ios - 文档选择器控制器的多项选择

Question

我正在尝试在文档选择器中选择多个文件。这是我的代码：

let documentPicker = UIDocumentPickerViewController(documentTypes: [String(kUTTypeFolder)], in: .import)
documentPicker.delegate = self
self.present(documentPicker, animated: false) {
    if #available(iOS 11.0, *) {
        documentPicker.allowsMultipleSelection = true
    }
}

但它一次只选择一个文件。谁能给我一个正确的方法？

任何帮助将不胜感激！

Answer 1

只做之前

self.present

你的代码应该是

 let documentPicker = UIDocumentPickerViewController(documentTypes: [String(kUTTypeFolder)], in: .import)
        documentPicker.delegate = self
        if #available(iOS 11.0, *) {
             documentPicker.allowsMultipleSelection = true
         }
        self.present(documentPicker, animated: false) {

        }

并签入浏览选项卡，而不是 Recenets 选项卡