我在Android上使用iText,这基本上就是我的情景:
对GET XML数据运行HTTP调用 解析XML以获取其中的字符串 使用字符串创建PDF
我从XML中提取的字符串是实际来自网络上另一个PDF的PDF格式数据。
我已经完成了解码过程,因此它是一个已解码的字符串...现在我只需要让它写入某种形式的API,以便它能够正确保存。
我目前正在使用iText,当我尝试添加段落时 - 它完全符合我的预期并写入字符串(包括标题,如标题和作者等)
有没有办法简单地将此字符串写入PDF文档并正确保存?
(我之前删除了一个关于此问题的问题,以便尽可能地重新解释这个问题。)
答案 0 :(得分:2)
试试这种方式......
try {
Document document = new Document();
File root = new File(Environment.getExternalStorageDirectory(),
"foldername");
String sdcardhtmlpath = root.getPath().toString() + "/filename.pdf";
PdfWriter.getInstance(document,
new FileOutputStream(sdcardhtmlpath));
document.open();
Paragraph paragraph = new Paragraph("your string");//add ur string here
paragraph.setAlignment(Element.ALIGN_LEFT);
document.add(paragraph);
document.close();
} catch (Exception e) {
Log.v("PDFcreation", e.toString());
}
答案 1 :(得分:0)
public void createPDF()
{
Document doc = new Document();
try {
String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "//pdf";
File dir = new File(path);
if(!dir.exists())
dir.mkdirs();
Log.d("PDFCreator", "PDF Path: " + path);
File file = new File(dir, "sample1.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 iText library");
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);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Bitmap bitmap = BitmapFactory.decodeResource(getBaseContext().getResources(), R.drawable.android);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100 , stream);
Image myImg = Image.getInstance(stream.toByteArray());
myImg.setAlignment(Image.MIDDLE);
//add image to document
doc.add(myImg);
//set footer
Phrase footerText = new Phrase("This is an example of a footer");
HeaderFooter pdfFooter = new HeaderFooter(footerText, false);
doc.setFooter(pdfFooter);
} catch (DocumentException de) {
Log.e("PDFCreator", "DocumentException:" + de);
} catch (IOException e) {
Log.e("PDFCreator", "ioException:" + e);
}
finally
{
doc.close();
}
这是使用droidText库的简单程序。试试这个有用。
答案 2 :(得分:0)
try{
File obj=new File(Environment.getExternalStorageDirectory(),"pdf");
if(!obj.exists())
{
obj.mkdirs();
}
String name=obj.getAbsolutePath()+"/mypdf.pdf";
FileOutputStream fop=new FileOutputStream(name);
Document doc=new Document();
PdfWriter.getInstance(doc, fop);
doc.open();
Font font=new Font(FontFamily.TIMES_ROMAN, 20, Font.STRIKETHRU, BaseColor.GREEN);
Paragraph p=new Paragraph("sample pdf",font);
p.setAlignment(Element.ALIGN_LEFT);
doc.add(p);
doc.close();
}
catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}