Search All .pdf File Present In The Android Device

March 19, 2024 Post a Comment

How to search all .pdf and .doc file present in the Android device through programmatic way?

Solution 1:

Try using the below code, This will work for u.

publicvoidwalkdir(File dir) {
    StringpdfPattern=".pdf";

    File listFile[] = dir.listFiles();

    if (listFile != null) {
        for (inti=0; i < listFile.length; i++) {

            if (listFile[i].isDirectory()) {
                walkdir(listFile[i]);
            } else {
              if (listFile[i].getName().endsWith(pdfPattern)){
                                  //Do what ever u want

              }
            }
        }
    }    
}

EDIT

To search on the whole sdcard call this function using

walkdir(Environment.getExternalStorageDirectory());

Solution 2:

Have a look here

Basicly get a starting Directory and then call "list" with a filter(FilenameFilter) and then traverse sub directories. Not sure if there is a one function that does all this for you.

Solution 3:

Download source code from here (Open pdf file from sdcard in android programmatically)

Add this Dependency in your Gradle file:

Baca Juga

compile ‘com.github.barteksc:android-pdf-viewer:2.0.3’

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;

publicclassMainActivityextendsAppCompatActivity {

ListView lv_pdf;
publicstatic ArrayList<File> fileList = newArrayList<File>();
PDFAdapter obj_adapter;
publicstaticintREQUEST_PERMISSIONS=1;
boolean boolean_permission;
File dir;

@OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
init();

}

privatevoidinit() {

lv_pdf = (ListView) findViewById(R.id.lv_pdf);
dir = newFile(Environment.getExternalStorageDirectory().getAbsolutePath());
fn_permission();
lv_pdf.setOnItemClickListener(newAdapterView.OnItemClickListener() {
@OverridepublicvoidonItemClick(AdapterView<?> adapterView, View view, int i, long l) {
Intentintent=newIntent(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 (inti=0; i < listFile.length; i++) {

if (listFile[i].isDirectory()) {
getfile(listFile[i]);

} else {

booleanbooleanpdf=false;
if (listFile[i].getName().endsWith(“.pdf”)) {

for (intj=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;
}
privatevoidfn_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, newString[]{android.Manifest.permission.READ_EXTERNAL_STORAGE},
REQUEST_PERMISSIONS);

}
} else {
boolean_permission = true;

getfile(dir);

obj_adapter = newPDFAdapter(getApplicationContext(), fileList);
lv_pdf.setAdapter(obj_adapter);

}
}

@OverridepublicvoidonRequestPermissionsResult(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 = newPDFAdapter(getApplicationContext(), fileList);
lv_pdf.setAdapter(obj_adapter);

} else {
Toast.makeText(getApplicationContext(), “Please allow the permission”, Toast.LENGTH_LONG).show();

}
}
}

}

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;

publicclassPdfActivityextendsAppCompatActivityimplementsOnPageChangeListener,OnLoadCompleteListener {

PDFView pdfView;
IntegerpageNumber=0;
String pdfFileName;
String TAG=”PdfActivity”;
int position=-1;

@OverrideprotectedvoidonCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pdf);
init();
}

privatevoidinit(){
pdfView= (PDFView)findViewById(R.id.pdfView);
position = getIntent().getIntExtra(“position”,-1);
displayFromSdcard();
}

privatevoiddisplayFromSdcard() {
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(newDefaultScrollHandle(this))
.load();
}
@OverridepublicvoidonPageChanged(int page, int pageCount) {
pageNumber = page;
setTitle(String.format(“%s %s / %s”, pdfFileName, page + 1, pageCount));
}
@OverridepublicvoidloadComplete(int nbPages) {
PdfDocument.Metameta= pdfView.getDocumentMeta();
printBookmarksTree(pdfView.getTableOfContents(), “-“);

}

publicvoidprintBookmarksTree(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 + “-“);
}
}
}
}

Solution 4:

Have a look Here

Change Extension of file like if you want all PDF file then extension ".pdf" use this to get all PDF file from device.

Solution 5:

Found this method in my old project, this function will get you pdf and its info

hope it will help you **ManageFIleInfoForRecycler is my custome class to store file info **

**"storage" pass as "external" **

public ArrayList<ManageFIleInfoForRecycler> fileList(String storage) {
       ArrayList< ManageFIleInfoForRecycler > fileInfo = new ArrayList<>();
//can give any file type "doc", "pdf" etc...String pdf = MimeTypeMap.getSingleton().getMimeTypeFromExtension("pdf");
        int j=0;



        Uri table = MediaStore.Files.getContentUri(storage);

        //ColumnString[] column = {MediaStore.Files.FileColumns.DATA,MediaStore.Files.FileColumns.TITLE};
        //WhereString where = MediaStore.Files.FileColumns.MIME_TYPE + "=?";
        String[] args = newString[]{pdf};

        Cursor fileCursor = getApplicationContext().getContentResolver().query(table, column, where, args, null);

        String [] filesLists=newString[]{};
        while (fileCursor.moveToNext()) {
            int pathString= fileCursor.getColumnIndex(MediaStore.Files.FileColumns.DATA);
            int nameIndex=fileCursor.getColumnIndex(MediaStore.Files.FileColumns.TITLE);
            String path = fileCursor.getString(pathString);
            String name=fileCursor.getString(nameIndex);
          ManageFIleInfoForRecycler temp=new ManageFIleInfoForRecycler();
          temp.filePath=path;
          temp.fileName=name;
            fileInfo.add(temp);
        }
return fileInfo;

    }

Android Coder