Ios Swift将UITextView文本保存为.Pdf、.Doc和.Txt文件格式并显示

在我的场景中，我试图用.pdf、.doc和.txt三种格式保存UITextView文本。在这里，格式化选项用户可以选择基于警报选项。保存后，需要在预览控制器中显示以进行文件共享。如何做到这一点

func createPDF(text:String, filename:String) {

        // 1. Create Print Formatter with input text.
        let formatter = UIMarkupTextPrintFormatter(markupText: text)

        // 2. Add formatter with pageRender
        let render = UIPrintPageRenderer()
        render.addPrintFormatter(formatter, startingAtPageAt: 0)

        // 3. Assign paperRect and printableRect
        let page = CGRect(x: 0, y: 0, width: 595.2, height: 841.8) // A4, 72 dpi
        let printable = page.insetBy(dx: 0, dy: 0)

        render.setValue(NSValue(cgRect: page), forKey: "paperRect")
        render.setValue(NSValue(cgRect: printable), forKey: "printableRect")

        // 4. Create PDF context and draw
        let rect = CGRect.zero

        let pdfData = NSMutableData()
        UIGraphicsBeginPDFContextToData(pdfData, rect, nil)

        for i in 1...render.numberOfPages {
            UIGraphicsBeginPDFPage();
            let bounds = UIGraphicsGetPDFContextBounds()
            render.drawPage(at: i - 1, in: bounds)
        }
        UIGraphicsEndPDFContext();

        // 5. Save PDF file
        let documentsPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
        pdfData.write(toFile: "\(documentsPath)/\(filename).pdf", atomically: true)
        print("saved success:\(documentsPath)\(filename)")
        listFiles()
    }

请尝试以下代码：）

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如果我理解正确，您需要显示文档
您可以使用

qlviewcontroller

更多信息请访问-

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qlviewcontroller

拥有共享控制权

谢谢@MuhammadBassio。顺便说一下.txt和.doc文件怎么样。是否可以使用相同的功能进行存储？确定。谢谢@MuhammadBassiomy我的问题是如何将textview.text创建为.pdf、.docx和.txt。要转换并保存为本地和共享期权。基于您上面的代码看起来是覆盖过程。请你进一步澄清一下好吗？检查更新的答案：），不确定

.doc

let txtData = Data(textView.txt.utf8)
do {
        let documentsPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
        let filePath = (documentsPath as NSString).appendingPathComponent("\(filename).pdf")
        let url = URL(fileURLWithPath: filePath)
        // pdfData created by your code above
        // txtData for ".txt"
        pdfData.write(to: url)

        let activityVC = UIActivityViewController(activityItems: [url], applicationActivities: nil)

        // Use your desired viewController here, or just use the rootViewController
        UIApplication.shared.keyWindow?.rootViewController?.presentViewController(activityVC, animated: true, completion: nil)
    } catch (let error) {
        print("\(error)")
    }