How to open a PDF via Intent from SD card
For Android Nougat and above some more work have to be done otherwise the app won't be able to open the .pdf file. We have to set a temporary permission to URI using the FileProvider:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
File file=new File(mFilePath);
Uri uri = FileProvider.getUriForFile(this, getPackageName() + ".provider", file);
intent = new Intent(Intent.ACTION_VIEW);
intent.setData(uri);
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(intent);
} else {
intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(mFilePath), "application/pdf");
intent = Intent.createChooser(intent, "Open File");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
Download source code from here (Open pdf file from sdcard in android programmatically)
Add this dependency:
compile ‘com.github.barteksc:android-pdf-viewer:2.0.3’
activity_main.xml:
<?xml version=”1.0″ encoding=”utf-8″?>
<RelativeLayout xmlns:android=”http://schemas.android.com/apk/res/android”
xmlns:tools=”http://schemas.android.com/tools”
android:id=”@+id/activity_main”
android:layout_width=”match_parent”
android:layout_height=”match_parent”
android:background=”#efefef”>
<ListView
android:layout_width=”match_parent”
android:id=”@+id/lv_pdf”
android:divider=”#efefef”
android:layout_marginLeft=”10dp”
android:layout_marginRight=”10dp”
android:layout_marginTop=”10dp”
android:layout_marginBottom=”10dp”
android:dividerHeight=”5dp”
android:layout_height=”wrap_content”>
</ListView>
</RelativeLayout>
MainActivity.java:
package com.pdffilefromsdcard;
import android.Manifest;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Environment;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class MainActivity extends AppCompatActivity {
ListView lv_pdf;
public static ArrayList<File> fileList = new ArrayList<File>();
PDFAdapter obj_adapter;
public static int REQUEST_PERMISSIONS = 1;
boolean boolean_permission;
File dir;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
init();
}
private void init() {
lv_pdf = (ListView) findViewById(R.id.lv_pdf);
dir = new File(Environment.getExternalStorageDirectory().getAbsolutePath());
fn_permission();
lv_pdf.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
Intent intent = new Intent(getApplicationContext(), PdfActivity.class);
intent.putExtra(“position”, i);
startActivity(intent);
Log.e(“Position”, i + “”);
}
});
}
public ArrayList<File> getfile(File dir) {
File listFile[] = dir.listFiles();
if (listFile != null && listFile.length > 0) {
for (int i = 0; i < listFile.length; i++) {
if (listFile[i].isDirectory()) {
getfile(listFile[i]);
} else {
boolean booleanpdf = false;
if (listFile[i].getName().endsWith(“.pdf”)) {
for (int j = 0; j < fileList.size(); j++) {
if (fileList.get(j).getName().equals(listFile[i].getName())) {
booleanpdf = true;
} else {
}
}
if (booleanpdf) {
booleanpdf = false;
} else {
fileList.add(listFile[i]);
}
}
}
}
}
return fileList;
}
private void fn_permission() {
if ((ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)) {
if ((ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, android.Manifest.permission.READ_EXTERNAL_STORAGE))) {
} else {
ActivityCompat.requestPermissions(MainActivity.this, new String[]{android.Manifest.permission.READ_EXTERNAL_STORAGE},
REQUEST_PERMISSIONS);
}
} else {
boolean_permission = true;
getfile(dir);
obj_adapter = new PDFAdapter(getApplicationContext(), fileList);
lv_pdf.setAdapter(obj_adapter);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == REQUEST_PERMISSIONS) {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
boolean_permission = true;
getfile(dir);
obj_adapter = new PDFAdapter(getApplicationContext(), fileList);
lv_pdf.setAdapter(obj_adapter);
} else {
Toast.makeText(getApplicationContext(), “Please allow the permission”, Toast.LENGTH_LONG).show();
}
}
}
}
activity_pdf.xml:
<?xml version=”1.0″ encoding=”utf-8″?>
<LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android”
android:layout_width=”match_parent”
android:background=”#ffffff”
android:layout_height=”match_parent”
android:orientation=”vertical”>
<com.github.barteksc.pdfviewer.PDFView
android:id=”@+id/pdfView”
android:layout_margin=”10dp”
android:layout_width=”match_parent”
android:layout_height=”match_parent” />
</LinearLayout>
PdfActivity.java:
package com.pdffilefromsdcard;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
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.io.File;
import java.util.List;
public class PdfActivity extends AppCompatActivity implements OnPageChangeListener,OnLoadCompleteListener {
PDFView pdfView;
Integer pageNumber = 0;
String pdfFileName;
String TAG=”PdfActivity”;
int position=-1;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pdf);
init();
}
private void init(){
pdfView= (PDFView)findViewById(R.id.pdfView);
position = getIntent().getIntExtra(“position”,-1);
displayFromSdcard();
}
private void displayFromSdcard() {
pdfFileName = MainActivity.fileList.get(position).getName();
pdfView.fromFile(MainActivity.fileList.get(position))
.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 + “-“);
}
}
}
}
Thanks!
Try this code, display pdf file From /sdcard
File file = new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/example.pdf");
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(file), "application/pdf");
intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
startActivity(intent);