Cause you wanna display the PDF file in a separate application (such as Adobe Reader), I would prefer doing the following:-
private void CopyReadAssets()
{
AssetManager assetManager = getActivity().getAssets();
InputStream in = null;
OutputStream out = null;
String state = Environment.getExternalStorageState();
if (!Environment.MEDIA_MOUNTED.equals(state)) {
Toast.makeText(getActivity(), "External Storage is not Available", Toast.LENGTH_SHORT).show();
}
File pdfDir = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/PDFs");
if (!pdfDir.exists()) {
pdfDir.mkdir();
}
File file = new File(pdfDir + "/abc.pdf");
try
{
in = assetManager.open("abc.pdf");
out = new BufferedOutputStream(new FileOutputStream(file));
copyFile(in, out);
in.close();
in = null;
out.flush();
out.close();
out = null;
} catch (Exception e)
{
Log.e("tag", e.getMessage());
}
if (file.exists()) //Checking for the file is exist or not
{
Uri path = Uri.fromFile(file);
Intent objIntent = new Intent(Intent.ACTION_VIEW);
objIntent.setDataAndType(path, "application/pdf");
objIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
Intent intent1 = Intent.createChooser(objIntent, "Open PDF with..");
try {
startActivity(intent1);
} catch (ActivityNotFoundException e) {
Toast.makeText(getActivity(), "Activity Not Found Exception ", Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(getActivity(), "The file not exists! ", Toast.LENGTH_SHORT).show();
}
}
For copy file into device memory:-
private void copyFile(InputStream in, OutputStream out) throws IOException
{
byte[] buffer = new byte[1024];
int read;
while ((read = in.read(buffer)) != -1)
{
out.write(buffer, 0, read);
}
}
Use the below Permission
