Android 类型文档的getInstance（byte[]）方法未定义。。安卓

我正在使用droidText库生成pdf

             //set footer
             Phrase footerText = new Phrase("This is an example of a footer");
             HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
             doc.setFooter(pdfFooter);




             Intent intent = new Intent(Intent.ACTION_VIEW);
             intent.setDataAndType(Uri.fromFile(file),"application/pdf");
             intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
             startActivity(intent);

     } catch (DocumentException de) {
             Log.e("PDFCreator", "DocumentException:" + de);
     } catch (IOException e) {
             Log.e("PDFCreator", "ioException:" + e);
     } 
     finally
     {
             doc.close();
     }

}  

我有以下代码

public void createPDF()
{
    Document doc = new Document();


     try {
            String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/droidText";

            File dir = new File(path);
                if(!dir.exists()){
                     System.out.println("directory not exists");
                     dir.mkdirs();
             }else{
                 System.out.println("directory exirsts");
             }
             System.out.println("path="+path);

            Log.d("PDFCreator", "PDF Path: " + path);


            File file = new File(dir, "sample.pdf");
            FileOutputStream fOut = new FileOutputStream(file);

            PdfWriter.getInstance(doc, fOut);

            //open the document
            doc.open();


            Paragraph p1 = new Paragraph("Hi! I am generating my first PDF using DroidText");
            Font paraFont= new Font(Font.COURIER);
            p1.setAlignment(Paragraph.ALIGN_CENTER);
            p1.setFont(paraFont);

             //add paragraph to document    
             doc.add(p1);

             Paragraph p2 = new Paragraph("This is an example of a simple paragraph");
             Font paraFont2= new Font(Font.COURIER,14.0f,Color.GREEN);
             p2.setAlignment(Paragraph.ALIGN_CENTER);
             p2.setFont(paraFont2);

             doc.add(p2);

             //set footer
             Phrase footerText = new Phrase("This is an example of a footer");
             HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
             doc.setFooter(pdfFooter);




             Intent intent = new Intent(Intent.ACTION_VIEW);
             intent.setDataAndType(Uri.fromFile(file),"application/pdf");
             intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
             startActivity(intent);

     } catch (DocumentException de) {
             Log.e("PDFCreator", "DocumentException:" + de);
     } catch (IOException e) {
             Log.e("PDFCreator", "ioException:" + e);
     } 
     finally
     {
             doc.close();
     }

}  

//

             //set footer
             Phrase footerText = new Phrase("This is an example of a footer");
             HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
             doc.setFooter(pdfFooter);




             Intent intent = new Intent(Intent.ACTION_VIEW);
             intent.setDataAndType(Uri.fromFile(file),"application/pdf");
             intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
             startActivity(intent);

     } catch (DocumentException de) {
             Log.e("PDFCreator", "DocumentException:" + de);
     } catch (IOException e) {
             Log.e("PDFCreator", "ioException:" + e);
     } 
     finally
     {
             doc.close();
     }

}  

它起作用了。。但是，当我使用以下几行向其添加图像时，它会说“类型文档的getInstance（byte[]）方法未定义”

             //set footer
             Phrase footerText = new Phrase("This is an example of a footer");
             HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
             doc.setFooter(pdfFooter);




             Intent intent = new Intent(Intent.ACTION_VIEW);
             intent.setDataAndType(Uri.fromFile(file),"application/pdf");
             intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
             startActivity(intent);

     } catch (DocumentException de) {
             Log.e("PDFCreator", "DocumentException:" + de);
     } catch (IOException e) {
             Log.e("PDFCreator", "ioException:" + e);
     } 
     finally
     {
             doc.close();
     }

}  

请帮助我将图像添加到文档中

，因为该类没有getInstance方法。

             //set footer
             Phrase footerText = new Phrase("This is an example of a footer");
             HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
             doc.setFooter(pdfFooter);




             Intent intent = new Intent(Intent.ACTION_VIEW);
             intent.setDataAndType(Uri.fromFile(file),"application/pdf");
             intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
             startActivity(intent);

     } catch (DocumentException de) {
             Log.e("PDFCreator", "DocumentException:" + de);
     } catch (IOException e) {
             Log.e("PDFCreator", "ioException:" + e);
     } 
     finally
     {
             doc.close();
     }

}  

你要按照这个,

             //set footer
             Phrase footerText = new Phrase("This is an example of a footer");
             HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
             doc.setFooter(pdfFooter);




             Intent intent = new Intent(Intent.ACTION_VIEW);
             intent.setDataAndType(Uri.fromFile(file),"application/pdf");
             intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
             startActivity(intent);

     } catch (DocumentException de) {
             Log.e("PDFCreator", "DocumentException:" + de);
     } catch (IOException e) {
             Log.e("PDFCreator", "ioException:" + e);
     } 
     finally
     {
             doc.close();
     }

}  

例如

             //set footer
             Phrase footerText = new Phrase("This is an example of a footer");
             HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
             doc.setFooter(pdfFooter);




             Intent intent = new Intent(Intent.ACTION_VIEW);
             intent.setDataAndType(Uri.fromFile(file),"application/pdf");
             intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
             startActivity(intent);

     } catch (DocumentException de) {
             Log.e("PDFCreator", "DocumentException:" + de);
     } catch (IOException e) {
             Log.e("PDFCreator", "ioException:" + e);
     } 
     finally
     {
             doc.close();
     }

}  

---

这不是一个重复的问题，但有一个答案，回答了您关于“帮助我将图像添加到文档中”的陈述。

请检查导入的可能重复项，经常会出现包含默认包的情况，因为有android.media.Image类。请用您所做的更新您的原始问题，以及你所做的一切的结果。你说它不工作，但是你没有描述它是否仍然有相同的错误消息，或者如果错误消息消失了，但是图像仍然没有出现，等等。

             //set footer
             Phrase footerText = new Phrase("This is an example of a footer");
             HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
             doc.setFooter(pdfFooter);




             Intent intent = new Intent(Intent.ACTION_VIEW);
             intent.setDataAndType(Uri.fromFile(file),"application/pdf");
             intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
             startActivity(intent);

     } catch (DocumentException de) {
             Log.e("PDFCreator", "DocumentException:" + de);
     } catch (IOException e) {
             Log.e("PDFCreator", "ioException:" + e);
     } 
     finally
     {
             doc.close();
     }

}