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我正在使用 UIDocumentPickerViewController 从 iPhone 中选择一个文档。

我通过以下方式实现了该功能。

class Si3EntityDocumentViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout, UIDocumentInteractionControllerDelegate, UIDocumentPickerDelegate, UINavigationControllerDelegate, UIDocumentMenuDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()
        setLoader()
        getDocuments(id:entity.id)
        let button = UIButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))
        button.backgroundColor = .red
        button.setTitle("Upload Doc", for: .normal)
        button.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)
        self.view.addSubview(button)
        // Do any additional setup after loading the view.
    }

    @objc func buttonAction(sender: UIButton!){
        let documentPicker = UIDocumentPickerViewController(documentTypes: [String(kUTTypeText),String(kUTTypeContent),String(kUTTypeItem),String(kUTTypeData)], in: .import)
        documentPicker.delegate = self
        present(documentPicker, animated: true, completion: {
            documentPicker.delegate = self
        } )
    }

    func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
        print(urls)
    }

}

该func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt url: URL)方法已在 iOS 11 中弃用，因此我已将其替换为func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL])

出于某种原因，我没有收到回调func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL])

我在这个类中还有一些其他代码，但我没有包含它。当我选择一个文档或单击取消时，我在控制台中收到以下错误

[DocumentManager] 视图服务确实因错误而终止：Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method}

我知道我错过了一些非常愚蠢的东西，感谢您的帮助。

感谢期待。

4

3 回答 3

0

在设备上尝试。当我登录 iCloud 并尝试查看目录时，模拟器不适合我。

于 2019-09-21T10:47:49.223 回答
0

您可以查看Apple 文档以获得更好的理解。

UIDocumentPickerViewController 的默认行为是选择一个文档，您必须使用：

func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL) {
}

如果您使用 UIDocumentPickerViewController 来选择多个文档，那么您必须将allowsMultipleSelection属性设置为true并实现

func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
}

此外，以下行就足够了。

present(documentPicker, animated: true)
于 2018-11-20T10:57:53.283 回答
0

我在 swift 3 中使用了这个方法

func openImportDocumentPicker() {
    let documentPicker = UIDocumentPickerViewController(documentTypes: ["public.item"], in: .import)
    documentPicker.delegate = self
    documentPicker.modalPresentationStyle = .formSheet
    self.present(documentPicker, animated: true, completion: { _ in })
}

func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL) {
    if controller.documentPickerMode == .import {
        let alertMessage: String = "Successfully imported \(url.absoluteURL)"
   }
}

func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {
    print("Cancelled")
}
于 2018-11-20T11:19:50.130 回答