Android Studio: Read All Songs From User Storage With permissions

Define Permissions AndroidManifest.xml Simple Button For Getting Permissions activity_main.xml Java Code to Get Permissions and Logging Files package com.example.musicplayer; import android.Manifest; import android.content.Intent; import android.content.pm.PackageManager; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.Environment; import android.provider.Settings; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.Toast; import androidx.activity.EdgeToEdge; import androidx.annotation.NonNull; import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat; import androidx.core.content.ContextCompat; import androidx.core.graphics.Insets; import androidx.core.view.ViewCompat; import androidx.core.view.WindowInsetsCompat; import java.io.File; import java.nio.file.Paths; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { private Button permissiosButton; public void log(String data) { Log.d("console", data); } public void log(int data) { Log.d("console", Integer.toString(data)); } public ArrayList fetchSong(File file) { // store all songs ArrayList arraySongs = new ArrayList(); // current folder all files File[] currentFiles = file.listFiles(); try { if (currentFiles != null) { for (File f : currentFiles) { if (f.isDirectory()) { arraySongs.addAll(fetchSong(f)); } else if (f.getName().endsWith(".mp3")) { arraySongs.add(f); } } } } catch (Exception ignore) { } return arraySongs; } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); EdgeToEdge.enable(this); setContentView(R.layout.activity_main); ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> { Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars()); v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom); return insets; }); permissiosButton = findViewById(R.id.permissionsButton); permissiosButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { getPermissions(); } }); String PublicDir = Environment.getExternalStorageDirectory().toString(); File PublicFolder = new File(PublicDir); ArrayList allSongs = fetchSong(PublicFolder); for (File f : allSongs) { log("File " + allSongs.size() + " " + f.getPath()); } } // get permissions void getPermissions() { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) { if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_MEDIA_AUDIO) != PackageManager.PERMISSION_GRANTED) { // Android 11 (API 30) and above ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_MEDIA_AUDIO}, 100); } } else { if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { // Android 10 (API 29) and below ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 100); } } } // permission callback @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); if (requestCode == 100) { if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { // Permission granted Toast.makeText(this, "Permission granted", Toast.LENGTH_SHORT).show(); } else { // Permission denied Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show(); Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS); Uri uri = Uri.fromParts("package", getPackageName(), null); intent.setData(uri); startActivity(intent); } } } }

Apr 17, 2025 - 18:21

Android Studio: Read All Songs From User Storage With permissions

Define Permissions

AndroidManifest.xml


 xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

     android:name="android.permission.INTERNET" />

    
    
        android:name="android.permission.READ_EXTERNAL_STORAGE"
        android:maxSdkVersion="32" />
    


    
    
        android:name="android.permission.READ_MEDIA_AUDIO"
        android:minSdkVersion="33" />
    

    
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.MusicPlayer"
        tools:targetApi="31">
        
            android:name=".MainActivity"
            android:exported="true">
            
                 android:name="android.intent.action.MAIN" />

                 android:name="android.intent.category.LAUNCHER" />

Simple Button For Getting Permissions

activity_main.xml


 xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    
        android:id="@+id/permissionsButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Get Permissions"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:ignore="HardcodedText" />

Java Code to Get Permissions and Logging Files

package com.example.musicplayer;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.provider.Settings;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import androidx.activity.EdgeToEdge;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

import java.io.File;
import java.nio.file.Paths;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
    private Button permissiosButton;

    public void log(String data) {
        Log.d("console", data);
    }

    public void log(int data) {
        Log.d("console", Integer.toString(data));
    }

    public ArrayList<File> fetchSong(File file) {
        // store all songs
        ArrayList<File> arraySongs = new ArrayList<File>();

        // current folder all files
        File[] currentFiles = file.listFiles();

        try {
            if (currentFiles != null) {
                for (File f : currentFiles) {
                    if (f.isDirectory()) {
                        arraySongs.addAll(fetchSong(f));
                    } else if (f.getName().endsWith(".mp3")) {
                        arraySongs.add(f);
                    }
                }
            }
        } catch (Exception ignore) {
        }

        return arraySongs;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
            return insets;
        });

        permissiosButton = findViewById(R.id.permissionsButton);
        permissiosButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                getPermissions();
            }
        });
        String PublicDir = Environment.getExternalStorageDirectory().toString();
        File PublicFolder = new File(PublicDir);

        ArrayList<File> allSongs = fetchSong(PublicFolder);

        for (File f : allSongs) {
            log("File " + allSongs.size() + " " + f.getPath());
        }

    }

    // get permissions
    void getPermissions() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
            if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_MEDIA_AUDIO) != PackageManager.PERMISSION_GRANTED) {
                // Android 11 (API 30) and above
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_MEDIA_AUDIO}, 100);
            }
        } else {
            if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                // Android 10 (API 29) and below
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 100);
            }
        }
    }

    // permission callback
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        if (requestCode == 100) {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                // Permission granted
                Toast.makeText(this, "Permission granted", Toast.LENGTH_SHORT).show();
            } else {
                // Permission denied
                Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show();
                Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                Uri uri = Uri.fromParts("package", getPackageName(), null);
                intent.setData(uri);
                startActivity(intent);
            }
        }
    }
}