Not able to open pdf in new activity


I'm using <a href="https://github.com/jblough/Android-Pdf-Viewer-Library" rel="nofollow">this github</a> source for my project. I've a listview with 10 elements and 10 different PDFs in assets folder. In 1 activity, I'm using listview and onItemClickListener as shown below:

ArrayAdapter arrayAdapter = new ArrayAdapter<>(this, R.layout.activity_policy_list, mobileArray); ListView listView = (ListView) findViewById(R.id.policy_list); listView.setAdapter(arrayAdapter); listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) { Intent intent = new Intent(PolicyActivity.this, PdfViewerActivity.class); intent.putExtra(PdfViewerActivity.EXTRA_PDFFILENAME, getAssets() + "/dummy.pdf"); startActivity(intent); } });

Code for PdfViewerActivity class is as given below:

package com.dell.eventapp.ui.activity; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import com.dell.eventapp.R; public class PdfViewerActivity extends net.sf.andpdf.pdfviewer.PdfViewerActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_pdf_viewer); } @Override public int getPreviousPageImageResource() { return R.drawable.left_arrow; } @Override public int getNextPageImageResource() { return R.drawable.right_arrow; } @Override public int getZoomInImageResource() { return R.drawable.zoom_in; } @Override public int getZoomOutImageResource() { return R.drawable.zoom_out; } @Override public int getPdfPasswordLayoutResource() { return 0; } @Override public int getPdfPageNumberResource() { return 0; } @Override public int getPdfPasswordEditField() { return 0; } @Override public int getPdfPasswordOkButton() { return 0; } @Override public int getPdfPasswordExitButton() { return 0; } @Override public int getPdfPageNumberEditField() { return 0; } }

When I click on any item in list view, new activity should open up and PDF should be viewed in new activity. When I run my code, I always get this error:

02-23 18:19:48.033 8982-8982/com.dell.eventapp I/PDFVIEWER: ST='file 'android.content.res.AssetManager@817d40c/dummy.pdf' not found'

I came across this <a href="https://github.com/jblough/Android-Pdf-Viewer-Library/issues/26" rel="nofollow">this issue</a> in github repo's issues. It says that PDF cannot be loaded from Assets folder. You should copy it on sdcard before opening it. How can I work around it?


intent.putExtra(PdfViewerActivity.EXTRA_PDFFILENAME, getAssets() + "/dummy.pdf");

getAssets() returns an AssetManager. getAssets() + "/dummy.pdf" calls toString() on the AssetManager instance, and then appends /dummy.pdf to it. This is why you wind up with android.content.res.AssetManager@817d40c/dummy.pdf. toString() on AssetManager does not somehow magically give you a filesystem path to an asset... in part because assets are not files on the device.


How can I work around it?




Follow the instructions in that issue and copy the asset to a file, or

</li> <li>

Modify that library to support an asset, or

</li> <li>

Do not use that library, but use something else that does support displaying a PDF from an asset

</li> </ul>

FWIW, I have sample apps demonstrating the use of <a href="https://github.com/commonsguy/cw-omnibus/tree/v8.9/PDF/PdfJS" rel="nofollow">pdf.js</a> and <a href="https://github.com/commonsguy/cw-omnibus/tree/v8.9/PDF/Pdfium" rel="nofollow">pdfium</a> for displaying PDFs from assets.


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