How to get list and count of files of Download folder from your Android App? – API 33

In this video it shows how one can get all the files available in the Download folder of your phone. It shows the steps to fetch the list of files for API-33 in Android Studio.

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Complete source code and other details:

package com.programmerworld.filesindownaloadfolder;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;

import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.os.storage.StorageManager;
import android.os.storage.StorageVolume;
import android.view.View;
import android.widget.TextView;

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

public class MainActivity extends AppCompatActivity {

    private TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ActivityCompat.requestPermissions(this,
                new String[]{Manifest.permission.READ_MEDIA_IMAGES},
                PackageManager.PERMISSION_GRANTED);

        textView = findViewById(R.id.textView);
    }

    public void buttonListTheFiles(View view){
        StorageManager storageManager = (StorageManager) getSystemService(STORAGE_SERVICE);
        List<StorageVolume> storageVolumeList = storageManager.getStorageVolumes();
        StorageVolume storageVolumeInternal = storageVolumeList.get(0);
        File fileListDownloadDir = new File(storageVolumeInternal.getDirectory().getPath() + "/Download");
        File[] fileList = fileListDownloadDir.listFiles();
        long longCountFiles = Arrays.stream(fileList).count();
        String stringOutput = "Total count is: " + Long.toString(longCountFiles) + "\n\n";
        for (int i=0; i<longCountFiles; i++){
            stringOutput += fileList[i].getName().toString() + "\n";
        }
        textView.setText(stringOutput);
    }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>

    <application
        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:supportsRtl="true"
        android:theme="@style/Theme.FilesInDownaloadFolder"
        tools:targetApi="31">
        <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>

            <meta-data
                android:name="android.app.lib_name"
                android:value="" />
        </activity>
    </application>

</manifest>

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView"
        android:layout_width="222dp"
        android:layout_height="198dp"
        android:text="Hello World!"
        android:textAlignment="center"
        android:textSize="20sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.497"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.358" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="122dp"
        android:layout_marginTop="57dp"
        android:onClick="buttonListTheFiles"
        android:text="List the files"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>