Java Code for An Android App: Text To Speech Converter

 

import android.Manifest;

import android.content.pm.PackageManager;

import android.os.Build;

import android.os.Bundle;

import android.os.Environment;

import android.speech.tts.TextToSpeech;

import android.util.Log;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import androidx.core.app.ActivityCompat;

import androidx.core.content.ContextCompat;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.Locale;

public class MainActivity extends AppCompatActivity implements TextToSpeech.OnInitListener {

    private TextToSpeech tts;

    private Button btnSpeak;

    private EditText txtText;

    private final int REQUEST_WRITE_STORAGE = 112;

    private final String TAG = "MainActivity";

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        // Initialize TextToSpeech

        tts = new TextToSpeech(this, this);

        // Get reference to UI elements

        btnSpeak = findViewById(R.id.btn_speak);

        txtText = findViewById(R.id.txt_text);

        // Request permission to write to external storage

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

            if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {

                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_WRITE_STORAGE);

            }

        }

        // Set click listener for speak button

        btnSpeak.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View view) {

                // Get input text

                String text = txtText.getText().toString();

                // Check if TextToSpeech is initialized

                if (tts != null) {

                    // Set language to US English

                    tts.setLanguage(Locale.US);

                    // Speak the input text

                    tts.speak(text, TextToSpeech.QUEUE_FLUSH, null);

                    // Save speech to .mp3 file

                    saveToMp3(text);

                }

            }

        });

    }

    private void saveToMp3(String text) {

        // Check if external storage is available

        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {

            // Create directory to store file

            File dir = new File(Environment.getExternalStorageDirectory(), "MySpeech");

            if (!dir.exists()) {

                dir.mkdirs();

            }

            // Create file

            File file = new File(dir, "speech.mp3");

            try {

                // Initialize FileOutputStream

                FileOutputStream fos = new FileOutputStream(file);

                // Generate speech and save to file

                tts.synthesizeToFile(text, null, fos, "speech");

                // Close FileOutputStream

                fos.close();

                // Show success message

                Toast.makeText(this, "Speech saved to " + file.getAbsolutePath(), Toast.LENGTH_LONG).show();

            } catch (FileNotFoundException e) {

                Log.e(TAG, "FileNotFoundException: " + e.getMessage());

                e.printStackTrace();

            } catch (IOException e) {

                Log.e(TAG, "IOException: " + e.getMessage());

                e.printStackTrace();

            }

        } else {

            // External storage is not available, show error message

            Toast.makeText(this, "External storage not available", Toast.LENGTH_LONG).show();

        }

    }

    @Override

    public void onInit(int status) {

        if (status == TextToSpeech.SUCCESS) {

            // TextToSpeech initialized successfully

        } else {

            // TextToSpeech initialization failed

            Toast.makeText(this, "TextToSpeech initialization failed", Toast.LENGTH_LONG).show();

        }

    }

    @Override

    protected void onDestroy() {

        super.onDestroy();