ios - 快速将UITextView文本保存到.Pdf，.Doc和.Txt文件以进行格式和显示

我的方案是，我尝试保存三种格式的.pdf，.doc和.txt的UITextView文本。在此，甲骨文选项用户可以根据警报选项进行选择。一旦保存，需要在预览控制器中显示以进行文件共享。如何实现呢？

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()
    }

最佳答案

如果我理解正确，则需要出示文件
您可以使用QLPreviewController完成此操作
更多信息-
https://developer.apple.com/documentation/quicklook
https://developer.apple.com/documentation/quicklook/qlpreviewcontroller#//apple_ref/occ/cl/QLPreviewController
https://medium.com/@garg.vivek/quick-display-documents-with-qlpreviewcontroller-eaca97928c7a
QLPreviewController具有共享控制权

关于ios - 快速将UITextView文本保存到.Pdf，.Doc和.Txt文件以进行格式和显示，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/56849245/