Trying to open a PDF file from a file folder using fileProvider, but it gives a FileNotFoundException: there is no such file or directory

Question

I am trying to display the file "NEFT.pdf" stored in the resource folder of my Android application.
The following code works absolutely fine until API 25

private void CopyReadAssets(String filename) { AssetManager assetManager = getAssets(); InputStream in = null; OutputStream out = null; File file = new File(getFilesDir(), filename); try { in = assetManager.open(filename); out = openFileOutput(file.getName(), Context.MODE_WORLD_READABLE); copyFile(in, out); in.close(); in = null; out.flush(); out.close(); out = null; Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType( Uri.parse("file://" + getFilesDir() + "/"+filename), "application/pdf"); startActivity(intent); } catch (Exception e) { Toast.makeText(PdfFilesList.this, "cra: "+e.toString(), Toast.LENGTH_SHORT).show(); } } 

This code does not work with API 25 and above. It gives the error MODE_WORLD_READABLE is no longer supported.
I changed it to MODE_PRIVATE , but that gives me another error.

android.os.fileuriexposedexception is displayed outside the application via intent.getdata () . So, I applied the concept described in Developer.Android.com .
This is what I get in the error log:

E / DisplayData: openFd: java.io.FileNotFoundException: No such file or directory

E / PdfLoader: cannot download file (cannot open) Display data [PDF: NEFT.pdf] + ContentOpenable, uri: content: //com.user.plansmart.provider/pdf_files/NEFT.pdf

uri looks right to me. Can anyone help me find a bug here.

Here is the provider element in the manifest file.

 <provider android:name="android.support.v4.content.FileProvider" android:authorities="${applicationId}.provider" android:exported="false" android:grantUriPermissions="true"> <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/provider_paths"/> </provider> 

This is the provider_paths.xml file

 <?xml version="1.0" encoding="utf-8"?> <paths xmlns:android="http://schemas.android.com/apk/res/android"> <external-path name="external_files" path="."/> <files-path name="pdf_files" path="pdf/"/> 

This is android code to display pdf file

 private void displayFile(String filename) { try { File filePath = new File(getApplicationContext().getFilesDir(), "pdf"); File newFile = new File(filePath, filename); //new version Uri fileUri = FileProvider.getUriForFile(PdfFilesList.this, BuildConfig.APPLICATION_ID + ".provider", newFile); getApplicationContext().grantUriPermission(PACKAGE_NAME, fileUri, Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(fileUri, "application/pdf"); intent.setFlags(FLAG_GRANT_READ_URI_PERMISSION | FLAG_GRANT_WRITE_URI_PERMISSION); startActivity(intent); }catch (Exception e){ e.printStackTrace(); Toast.makeText(PdfFilesList.this, "df "+e.toString(), Toast.LENGTH_SHORT).show(); } } 

Answer 1

If you want to display the PDF file in a separate application (e.g. Adobe Reader), I would prefer to do 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(); } } 

To copy a file to the device’s 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 following permission

 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />