open a pdf file programmatically

Question

I am working on pdf. I am trying to open a pdf file from my application using the code below. But I failed to open.

private void openPdf() {

        File fi         


        

Answer 1

I have nearly identical code that works fine, though I'm not opening a file from SD card in my app.

Activity mActivity = /* your activity */...;
String mFileName = /* path of my PDF file */...;

Uri uri  = Uri.fromFile(mActivity.getFileStreamPath(mFileName));

try
{
    Intent intentUrl = new Intent(Intent.ACTION_VIEW);
    intentUrl.setDataAndType(uri, "application/pdf");
    intentUrl.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    mActivity.startActivity(intentUrl);
}
catch (ActivityNotFoundException e)
{
    Toast.makeText(mActivity, "No PDF Viewer Installed", Toast.LENGTH_LONG).show();
}

so your approach is right on. Make sure you can open the file first ... i.e. use mActivity.openFileInput() to ensure you have a readable PDF.

Answer 2

Try LuxuryMode's method: https://stackoverflow.com/a/8221594/1500067

I think your just missing the adobe package intent.setPackage("com.adobe.reader");

Answer 3

Download the source code here(Display PDF file inside my android application)

Add this dependency in your Gradle file:

compile 'com.github.barteksc:android-pdf-viewer:2.0.3'

activity_main.xml

<RelativeLayout android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    xmlns:android="http://schemas.android.com/apk/res/android" >

    <TextView
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:background="@color/colorPrimaryDark"
        android:text="View PDF"
        android:textColor="#ffffff"
        android:id="@+id/tv_header"
        android:textSize="18dp"
        android:gravity="center"></TextView>

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


    </RelativeLayout>

MainActivity.java

import android.app.Activity;
import android.database.Cursor;
import android.net.Uri;
import android.provider.OpenableColumns;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.RelativeLayout;

import com.github.barteksc.pdfviewer.PDFView;
import com.github.barteksc.pdfviewer.listener.OnLoadCompleteListener;
import com.github.barteksc.pdfviewer.listener.OnPageChangeListener;
import com.github.barteksc.pdfviewer.scroll.DefaultScrollHandle;
import com.shockwave.pdfium.PdfDocument;

import java.util.List;

public class MainActivity extends Activity implements OnPageChangeListener,OnLoadCompleteListener{
    private static final String TAG = MainActivity.class.getSimpleName();
    public static final String SAMPLE_FILE = "android_tutorial.pdf";
    PDFView pdfView;
    Integer pageNumber = 0;
    String pdfFileName;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        pdfView= (PDFView)findViewById(R.id.pdfView);
        displayFromAsset(SAMPLE_FILE);
    }

    private void displayFromAsset(String assetFileName) {
        pdfFileName = assetFileName;

        pdfView.fromAsset(SAMPLE_FILE)
                .defaultPage(pageNumber)
                .enableSwipe(true)

                .swipeHorizontal(false)
                .onPageChange(this)
                .enableAnnotationRendering(true)
                .onLoad(this)
                .scrollHandle(new DefaultScrollHandle(this))
                .load();
    }


    @Override
    public void onPageChanged(int page, int pageCount) {
        pageNumber = page;
        setTitle(String.format("%s %s / %s", pdfFileName, page + 1, pageCount));
    }


    @Override
    public void loadComplete(int nbPages) {
        PdfDocument.Meta meta = pdfView.getDocumentMeta();
        printBookmarksTree(pdfView.getTableOfContents(), "-");

    }

    public void printBookmarksTree(List<PdfDocument.Bookmark> tree, String sep) {
        for (PdfDocument.Bookmark b : tree) {

            Log.e(TAG, String.format("%s %s, p %d", sep, b.getTitle(), b.getPageIdx()));

            if (b.hasChildren()) {
                printBookmarksTree(b.getChildren(), sep + "-");
            }
        }
    }

}

Answer 4

for android 9 and 10 you should use this code

1-create one class

public class GenericFileProvider extends FileProvider {

}

2-in res directory create one directory to name of xml and create one file to name of provider_paths.xml and add this code

<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path name="external_files" path="."/>
</paths>

3-in manifests in application add this code

  <provider
    android:name=".Model.Utilitys.GenericFileProvider"
    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>

4-you should get Permission Manifest.permission.READ_EXTERNAL_STORAGE

5-and add this codes

String fileName="yourfile.pdf";

File file = new File(Environment.getExternalStorageDirectory()+"/Android/data/ir.tdaapp.paymanyar/files/File",fileName);

String extension = MimeTypeMap.getFileExtensionFromUrl(Uri.fromFile(file).toString());

String mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);

Intent intent = new Intent(Intent.ACTION_VIEW);

intent.setFlags(FLAG_ACTIVITY_CLEAR_TOP | FLAG_ACTIVITY_NEW_TASK);

Uri uri = FileProvider.getUriForFile(getContext(), getActivity().getApplicationContext().getPackageName() + ".provider", file);

intent.setDataAndType(uri, mimeType);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

startActivity(Intent.createChooser(intent, "choseFile"));

6-I suggest you add this code to the application in manifests

android:requestLegacyExternalStorage="true"

Answer 5

You can achieve this using 3rd party library integration. Working libraries are listed below, with SDK

https://github.com/JoanZapata/android-pdfview
https://github.com/jblough/Android-Pdf-Viewer-Library

with NDK

https://code.google.com/p/mupdf/downloads/detail?name=mupdf-1.2-source.zip&can=2&q=

guide to use @

http://dixitpatel.com/integrating-pdf-in-android-application/

Answer 6

I know maybe is too late for an answer, but your problem is cause by these 2 line: intent.setData(path); intent.setType("application/pdf");

When you setData and after that you setType, the second command will clean the path assingned in setData. In this situation, you should use setDataAndType(path,"application/pdf")

/**
 * Set an explicit MIME data type.
 *
 * <p>This is used to create intents that only specify a type and not data,
 * for example to indicate the type of data to return.
 *
 * <p>This method automatically clears any data that was
 * previously set (for example by {@link #setData}).
 *
 * <p><em>Note: MIME type matching in the Android framework is
 * case-sensitive, unlike formal RFC MIME types.  As a result,
 * you should always write your MIME types with lower case letters,
 * or use {@link #normalizeMimeType} or {@link #setTypeAndNormalize}
 * to ensure that it is converted to lower case.</em>
 *
 * @param type The MIME type of the data being handled by this intent.
 *
 * @return Returns the same Intent object, for chaining multiple calls
 * into a single statement.
 *
 * @see #getType
 * @see #setTypeAndNormalize
 * @see #setDataAndType
 * @see #normalizeMimeType
 */
public Intent setType(String type) {
    mData = null;
    mType = type;
    return this;
}

Javadoc Intent class