问题与添加图像,而在Android的创建动态全文 [英] Issue with Adding Image while Creating Dynamic Pdf in android
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问题描述
我创建的PDF使用动态低于code和同样使用iText库:
I created pdf dynamically using below code and also using iText library:
尝试{
String str_path = Environment.getExternalStorageDirectory()
.toString();
File file;
file = new File(str_path, getString(R.string.app_name)
+ ".pdf");
FileOutputStream fos = new FileOutputStream(file);
Document document = new Document();
PdfWriter.getInstance(document, fos);
document.open();
document.add(new Paragraph("Hello World"));
document.add(new Paragraph(new Date().toString()));
document.close();
fos.close();
} catch (Exception e) {
e.printStackTrace();
}
比我取得976字节的PDF文件。
当我加入code使用低于code将图片添加到这个PDF文件:
Than i retrieve the pdf file of 976 byte. When i added code for adding image to this pdf file using below code:
try {
String str_path = Environment.getExternalStorageDirectory()
.toString();
File file;
file = new File(str_path, getString(R.string.app_name)
+ ".pdf");
FileOutputStream fos = new FileOutputStream(file);
Document document = new Document();
PdfWriter.getInstance(document, fos);
document.open();
document.add(new Paragraph("Hello World, iText"));
document.add(new Paragraph(new Date().toString()));
Image image = Image.getInstance("ic_launcher.png");
document.add(image);
document.close();
fos.close();
} catch (Exception e) {
e.printStackTrace();
}
比我找回0字节的PDF文件。
Than i retrieve the pdf file of 0 byte.
我不知道是什么问题,如果你有与此相关的,不是请与我分享任何想法。谢谢。
i dont know what is issue, If you have any idea related to it, than please share with me. thanks.
推荐答案
最后,我添加图像到PDF使用低于code:
Finally I added image to pdf Using below code:
尝试{
String str_path = Environment.getExternalStorageDirectory()
.toString();
File file;
file = new File(str_path, getString(R.string.app_name)
+ ".pdf");
FileOutputStream fos = new FileOutputStream(file);
Document document = new Document();
PdfWriter.getInstance(document, fos);
InputStream ims = getAssets().open("ic_launcher.png");
Bitmap bmp = BitmapFactory.decodeStream(ims);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.PNG, 100, stream);
Image image = Image.getInstance(stream.toByteArray());
document.open();
document.add(new Paragraph("Hello World"));
document.add(new Paragraph(new Date().toString()));
document.add(image);
document.close();
fos.close();
} catch (Exception e) {
e.printStackTrace();
}
使用此code,希望这会帮助你。
Use this code, hope this will help you.
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