My App does not read .mp3 files from SD Card

[ppda1996]

Here are my MainActivity.java codes but it does not read the .mp3 files from the SD card.

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
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.ArrayAdapter;
import android.widget.ListView;

import com.karumi.dexter.Dexter;
import com.karumi.dexter.MultiplePermissionsReport;
import com.karumi.dexter.PermissionToken;
import com.karumi.dexter.listener.PermissionRequest;
import com.karumi.dexter.listener.multi.MultiplePermissionsListener;
import com.musicPlayer.patel.lastkingmusicplayer.R;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

ListView myListViewForSongs;
String[] items;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    myListViewForSongs = (ListView) findViewById(R.id.mySongListView);


    MultiplePermissionsListener();

}






public void MultiplePermissionsListener() {

    Dexter.withActivity(this)
            .withPermissions(
                    Manifest.permission.READ_EXTERNAL_STORAGE,
                    Manifest.permission.WRITE_EXTERNAL_STORAGE,
                    Manifest.permission.ACCESS_FINE_LOCATION,
                   )
            .withListener(new MultiplePermissionsListener() {
                @Override
                public void onPermissionsChecked(MultiplePermissionsReport report) {
                    // check if all permissions are granted
                    if (report.areAllPermissionsGranted()) {
                        // do you work now
                        display();
                    }

                    // check for permanent denial of any permission
                    if (report.isAnyPermissionPermanentlyDenied()) {
                        // permission is denied permanently, navigate user to app settings
                    }
                }

                @Override
                public void onPermissionRationaleShouldBeShown(List<PermissionRequest> permissions, PermissionToken token) {
                    token.continuePermissionRequest();
                }
            }).check();
}



public ArrayList<File> findSong(File file) {

    ArrayList<File> arrayList = new ArrayList<>();

    File [] files = file.listFiles();

    for (File singleFile: files) {

        if(singleFile.isDirectory() && !singleFile.isHidden()){

            arrayList.addAll(findSong(singleFile));
        }
        else {
            if (singleFile.getName().endsWith(".mp3") ||
                    singleFile.getName().endsWith(".wav")) {

                arrayList.add(singleFile);
            }
        }
    }

    return arrayList;
}

void display(){

    final ArrayList<File> mySongs = findSong(Environment.getExternalStorageDirectory());

    items = new String[mySongs.size()];

    for (int i=0;i<mySongs.size();i++) {

        items[i] = mySongs.get(i).getName().toString().replace(".mp3","").replace(".wav","");

    }

    ArrayAdapter<String> myAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,items);
    myListViewForSongs.setAdapter(myAdapter);

    myListViewForSongs.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int i, long l) {

            String songName = myListViewForSongs.getItemAtPosition(i).toString();

            startActivity(new Intent(getApplicationContext(),PlayerActivity.class)
                    .putExtra("songs",mySongs).putExtra("songname",songName)
                    .putExtra("pos",i));


        }
    });




}

[ansus25]

Have you ever solved this issue? I have the same issue, but I can't find it anywhere. :(