Android PdfViewer-FileNotFoundException

Question

I installed this library to view pdf from a url inside my application but when I click on the file to open it gives me the following error:

I tried looking into ContentResolver but no luck

This is the logcat:

07-26 15:35:45.638 8725-8725/com.focuson.iapp.firstapp E/PDFView: load pdf error
java.io.FileNotFoundException: No content provider: http://pub.mylaravel.eu/assets/user_files/3/file_no_1.pdf
at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1093)
at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:944)
at android.content.ContentResolver.openFileDescriptor(ContentResolver.java:797)
at android.content.ContentResolver.openFileDescriptor(ContentResolver.java:751)
at com.github.barteksc.pdfviewer.DecodingAsyncTask.getSeekableFileDescriptor(DecodingAsyncTask.java:82)
at com.github.barteksc.pdfviewer.DecodingAsyncTask.doInBackground(DecodingAsyncTask.java:61)
at com.github.barteksc.pdfviewer.DecodingAsyncTask.doInBackground(DecodingAsyncTask.java:30)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)

My activity is:

public class pdfActivity extends AppCompatActivity {
PDFView pdfView;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_pdf);
    pdfView= (PDFView) findViewById(R.id.pdfView);
    String url=getIntent().getStringExtra("url");
    Log.i("URI-URL",String.valueOf(Uri.parse(url)) );
    pdfView.fromUri(Uri.parse(url))
            .enableSwipe(true)
            .enableDoubletap(true)
            .swipeVertical(false)
            .defaultPage(1)
            .showMinimap(false)
            .onLoad(new OnLoadCompleteListener() {
                @Override
                public void loadComplete(int nbPages) {

                }
            })
            .onPageChange(new OnPageChangeListener() {
                @Override
                public void onPageChanged(int page, int pageCount) {

                }
            })
            .enableAnnotationRendering(false)
            .password(null)
            .load();}}

My xml is:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.focuson.iapp.firstapp.page_types.Login.pdfActivity">

<com.github.barteksc.pdfviewer.PDFView
    android:id="@+id/pdfView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>
</RelativeLayout>

Corneliuscornell

Can you access that URL on the phone's browser? – Gounod

Yes and it begins downloading the pdf on my phone – Corneliuscornell

I'm guessing that the library expects a ContentProvider URI, not a network address – Gounod

Answer 1

Seems that this library fails to download files from the internet. Download the file to a temp directory and open it:

if (ActivityCompat.checkSelfPermission(WebViewActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED
                && ActivityCompat.checkSelfPermission(WebViewActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(WebViewActivity.this,
                    new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
                    MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE);
        } else {
            downloadFile();
        }

@Override
public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE:
            downloadFile();
            break;
    }
}

private void downloadFile() {
    progressBar.setVisibility(View.VISIBLE);
    DownloadFileTask task = new DownloadFileTask(
            WebViewActivity.this,
            mURL,
            "/download/pdf_file.pdf");
    task.startTask();
}

@Override
public void onFileDownloaded() {
    progressBar.setVisibility(View.GONE);
    File file = new File(Environment.getExternalStorageDirectory()
            .getAbsolutePath()
            + "/download/pdf_file.pdf");
    if (file.exists()) {
        pdfView.fromFile(file)
                //.pages(0, 2, 1, 3, 3, 3) // all pages are displayed by default
                .enableSwipe(true)
                .swipeHorizontal(true)
                .enableDoubletap(true)
                .defaultPage(0)
                .enableAnnotationRendering(true)
                .password(null)
                .scrollHandle(null)
                .onLoad(new OnLoadCompleteListener() {
                    @Override
                    public void loadComplete(int nbPages) {
                        pdfView.setMinZoom(1f);
                        pdfView.setMidZoom(5f);
                        pdfView.setMaxZoom(10f);
                        pdfView.zoomTo(2f);
                        pdfView.scrollTo(100,0);
                        pdfView.moveTo(0f,0f);
                    }
                })
                .load();

    }
}

public class DownloadFileTask {
public static final String TAG = "DownloadFileTask";

private BaseActivity context;
private GetTask contentTask;
private String url;
private String fileName;

public DownloadFileTask(BaseActivity context, String url, String fileName) {
    this.context = context;
    this.url = url;
    this.fileName = fileName;
}

public void startTask() {
    doRequest();
}

private void doRequest() {
    contentTask = new GetTask();
    contentTask.execute();
}

private class GetTask extends AsyncTask<String, Integer, String> {

    @Override
    protected String doInBackground(String... arg0) {
        int count;
        try {
            Log.d(TAG, "url = " + url);
            URL _url = new URL(url);
            URLConnection conection = _url.openConnection();
            conection.connect();
            InputStream input = new BufferedInputStream(_url.openStream(),
                    8192);
            OutputStream output = new FileOutputStream(
                    Environment.getExternalStorageDirectory() + fileName);
            byte data[] = new byte[1024];
            while ((count = input.read(data)) != -1) {
                output.write(data, 0, count);
            }
            output.flush();
            output.close();
            input.close();
        } catch (Exception e) {
            Log.e("Error: ", e.getMessage());
        }
        return null;
    }

    protected void onPostExecute(String data) {
        context.onFileDownloaded();
    }
}

}

Pines

thank you so much sir you save my day thanks again <3 – Bivins

Answer 2

Uri is not like URL :here

You must download first the *.pdf file and save to SD and finaly you can open it with Pdfview.

Destrier

"Library doesn't support remote content, so it works as expected. Glad that update fixed loading from internal memory." from github.com/barteksc/AndroidPdfViewer/issues/2 – Staphylorrhaphy

Answer 3

No content provider: http://...

It's not clear where you read that the library can download and display a PDF from a network request. A URI can mean many things, and in this case, it is trying to use a ContentProvider to load a raw PDF file from disk.

You can look at the Github repo for that library for sample usage of the URI.

Gounod

Answer 4

You can use an InputStream if you don't want to download the file localy:

        new Thread(() -> {
            try {
                InputStream input = new URL(url).openStream();
                runOnUiThread(() -> pdfView.fromStream(input)
                        .defaultPage(0)
                        .enableSwipe(true)
                        .swipeHorizontal(false)
                        .enableAnnotationRendering(true)
                        .scrollHandle(new DefaultScrollHandle(YourActivity.this))
                        .load());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }).start();

Erect