How to get the file path from a URI that points to a PDF document?
<p>Right now my code opens up the default downloads view and it only shows me the PDFs I downloaded. I choose a PDF file and I get this:</p>

<blockquote>
  <p>content://com.android.providers.downloads.documents/document/1171</p>
</blockquote>

<p>I want to get this:</p>

<blockquote>
  <p>/storage/emulated/0/Download/ch22Databases.pdf</p>
</blockquote>

<p>My question is how do I do this in Android?</p>

<p>My code:</p>

<pre><code>public void PDF() {
    PDF = (Button) findViewById(R.id.FindPDFBtn);//Finds the button in design and put it into a button variable.
    PDF.setOnClickListener(//Listens for a button click.
        new View.OnClickListener() {//Creates a new click listener.
            @Override
            public void onClick(View v) {//does what ever code is in here when the button is clicked
                Intent intent = new Intent();
                intent.setType("application/pdf");
                intent.setAction(Intent.ACTION_GET_CONTENT);
                startActivityForResult(Intent.createChooser(intent, "Select a PDF "), SELECT_PDF);
            }
        }
    );
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    //PDF
    if (resultCode == RESULT_OK) {
        if (requestCode == SELECT_PDF) {
            Uri selectedUri_PDF = data.getData();
            SelectedPDF = getPDFPath(selectedUri_PDF);
        }
    }
}

public String getPDFPath(Uri uri) {
    String[] projection = { MediaStore.Images.Media.DATA };
    Cursor cursor = getContentResolver().query(uri, projection, null, null, null);
    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    cursor.moveToFirst();
    return cursor.getString(column_index);
}
</code></pre>