how to get all audio files in android programmatically

Hello friend today we will learn about how to list all mp3 song from storage in android studio . Whenever we make a music player, we have to show all the songs inside the storage to the user Or make a video editor, even then we have to show all the songs to the user, for this we have to.

Lets start how to create this project

step 1:First of all create a project in Android studio And as soon as you create the project, give us the file will appear activity_main and MainActivty.

Step 2: First we will use a ListView in activity_main the code is given below

activity_main:

<?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:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

   <ListView
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       android:id="@+id/listView"/>

</RelativeLayout>

In this layout we have used a ListView through which we will show the song in the listView.Now we will use this layout in MainActivity.

MainActivity.java

package com.example.listsong;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import android.Manifest;
import android.content.ContentResolver;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
 private ListView listView;
 public static final int RUNTIME_PERMISSION=10;
 ArrayList<String>arrayList;
 ArrayAdapter<String>adapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if(ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE)!= PackageManager.PERMISSION_GRANTED)
        {
            if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this,Manifest.permission.READ_EXTERNAL_STORAGE))
            {
                ActivityCompat.requestPermissions(MainActivity.this,new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},RUNTIME_PERMISSION);
            }
            else
            {
                ActivityCompat.requestPermissions(MainActivity.this,new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},RUNTIME_PERMISSION);
            }
        }

        else
        {
            showSong();
        }
    }

    private void  showSong () {
        listView=(ListView) findViewById(R.id.listView);
        arrayList=new ArrayList<>();
        getMusic();
        adapter=new ArrayAdapter<>(this,android.R.layout.simple_list_item_1,arrayList);
        listView.setAdapter(adapter);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {

            }
        });

    }

    public void getMusic()
    {
        ContentResolver contentResolver=getContentResolver();
        Uri songUri= MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
        Cursor songCursor= null;
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            songCursor = contentResolver.query(songUri,null,null,null);
        }
        if(songCursor!=null && songCursor.moveToFirst()) {
            int songTitle=songCursor.getColumnIndex(MediaStore.Audio.Media.TITLE);
            int songArtist=songCursor.getColumnIndex(MediaStore.Audio.Media.ARTIST);
            do{
                String currentTitle=songCursor.getString(songTitle);
                String currentArtist=songCursor.getString(songArtist);
                arrayList.add(currentTitle + "\n" + currentArtist);
            }while (songCursor.moveToNext());
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode) {
            case RUNTIME_PERMISSION:
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
                        Toast.makeText(this, "Permission Granted ...", Toast.LENGTH_SHORT).show();
                         showSong();
                    }

                } else {
                    Toast.makeText(this, "Permission Granted ....", Toast.LENGTH_SHORT).show();
                    finish();
                }
        }

        return;
    }
}

In this class we will first take storage permission And we will handle this storage permission through an override method onRequestPermissionsResult in which we will check whether the storage permission is there or not, if the permission is granted then we will call showsong methodthen by calling songShow method we will print all the songs.Inside the showsong method, we have used another method getMusic by which we can print all the tile descriptions of all the songs in the song.through some already made method.like ContentResolver, Cursor,Uri etc.

After doing this, we have to do one more thing in the manifest, we will have to give a permission of "android.permission.READ_EXTERNAL_STORAGE" so that it can take storage permission.

Manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.listsong">
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.ListSong">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Thank you