无法快速共享 pdf（仅限 WhatsApp）答案

【问题标题】：Not able to share pdf in swift (Only WhatsApp)无法快速共享 pdf（仅限 WhatsApp）
【发布时间】：2019-12-12 10:57:32
【问题描述】：

我想从应用程序共享 pdf 文件。我收到一个错误“无法共享”文档一些 pdf。我在某些文件中没有收到错误。这是我的代码：

class DocumentURL: UIActivityItemProvider {
    let temporaryURL: URL
    let document: DocumentAndDemandForm
    let data : Data

    init(document: DocumentAndDemandForm,data:Data) {
        self.document = document
        self.data = data
        self.temporaryURL = URL(fileURLWithPath: NSTemporaryDirectory() + "\(document.downloadName == "" ? document.description ?? "ek" : document.downloadName).pdf")
        super.init(placeholderItem: temporaryURL)
    }
    override var item: Any {
        get {
            try? data.write(to: temporaryURL)
            return temporaryURL
        }
    }
}

func share(isSave:Bool = false) {
        if let data = pdfView.document?.dataRepresentation(){
            let activityViewController: UIActivityViewController = UIActivityViewController(activityItems: [DocumentURL.init(document: self.document, data: data)], applicationActivities: nil)
            activityViewController.popoverPresentationController?.sourceView = self.pdfView
            if isSave{
                activityViewController.excludedActivityTypes = [.airDrop,.assignToContact,.copyToPasteboard,.mail,.message,.openInIBooks,.postToFacebook,.postToFlickr,.postToTencentWeibo,.postToTwitter,.postToVimeo,.postToWeibo]
            }
            DispatchQueue.main.async {
                self.controller.present(activityViewController, animated: true, completion: {
                    self.shareDocument = false

                })
            }
        }
    }

【问题讨论】：

标签： swift pdf document whatsapp uiactivityviewcontroller

【解决方案1】：

检查我的简单代码可能对您有帮助，不要忘记为 whatsapp 配置共享设置，只有它才会出现在共享实例中..

@objc func shareTapped() {

        do {
            let data = try Data(contentsOf: URL(fileURLWithPath: documentPath!))
            let activityViewController: UIActivityViewController = UIActivityViewController(activityItems: [docTitle!,data], applicationActivities: nil)
            activityViewController.popoverPresentationController?.sourceView = self.view

            self.present(activityViewController, animated: true, completion: nil)
            print("pdf file loading...")
        }
        catch {
            let msgView = Utils.swiftMeassageView(title: "", message: "PDF file not found.", theme: .info)
            SwiftMessages.show(view: msgView)
        }
    }

【讨论】：

【解决方案2】：

在您的Info.plist 中添加这两个键：

文件共享已启用，UIFileSharingEnabled：此密钥（应用程序支持 iTunes 文件共享）将启用 iTunes 共享您 Documents 文件夹中的文件。确保将布尔值设置为 true。
LSSupportsOpeningDocumentsInPlace：此密钥（支持就地打开文档）将授予应用程序文件提供者读取或写入文档文件夹中文件的权限。确保将布尔值设置为 YES。

let fileManager = FileManager.default
let documentoPath = getDirectoryPath().appendingPathComponent(url.lastPathComponent) as URL
print("documentoPath :\(documentoPath)")
if fileManager.fileExists(atPath: documentoPath.path) {
    DispatchQueue.main.async {
        let activityViewController: UIActivityViewController = UIActivityViewController(activityItems: [documentoPath], applicationActivities: nil)
        activityViewController.popoverPresentationController?.sourceView = self.view
        self.downloadNavController?.present(activityViewController, animated: true, completion: { () in
            UIBarButtonItem.appearance().tintColor = UIColor.systemBlue
            UINavigationBar.appearance().barTintColor = UIColor.white
        })
    }
} else {
    print("document was not found")
}

【讨论】：