<?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"
    android:transitionGroup="true"
    android:padding="16dp">

    <TextView
        android:id="@+id/textview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Text to Speech"
        android:textSize="28dp"
        android:textColor="#000000"
        android:gravity="center"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="20dp"/>

    <EditText
        android:id="@+id/userText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textview"
        android:layout_marginTop="45dp"
        android:hint="Enter your text"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Text to Speech"
        android:textColor="@color/colorWhite"
        android:layout_below="@+id/userText"
        android:layout_centerHorizontal="true"
        android:padding="16dp"
        android:layout_marginTop="46dp"
        android:background="@color/colorPrimaryDark"/>

    <TextView
        android:id="@+id/clickMic"
        android:layout_below="@id/button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Tap on mic to speak"
        android:textSize="18dp"
        android:textColor="#808080"
        android:textStyle="bold"
        android:gravity="center"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="20dp"/>

    <ImageView
        android:id="@+id/imageMic"
        android:layout_width="70dp"
        android:layout_height="70dp"
        android:src="@drawable/ic_microphone"
        android:layout_below="@id/clickMic"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="30dp"/>

</RelativeLayout>
                                    
                                  

                                    
                                        import android.content.Intent;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.speech.tts.TextToSpeech;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import java.util.ArrayList;
import java.util.Locale;

public class MainActivity extends AppCompatActivity {

    EditText userText;
    Button b1;
    ImageView imageView;
    TextToSpeech t1;
    String userToSpeak;

    private final int REQUEST_CODE = 100;

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

        userText = findViewById(R.id.userText);
        b1 = findViewById(R.id.button);
        imageView = findViewById(R.id.imageMic);

        t1 = new TextToSpeech(getApplicationContext(), new TextToSpeech.OnInitListener() {
            @Override
            public void onInit(int status) {
                if (status != TextToSpeech.ERROR) {
                    t1.setLanguage(Locale.UK);
                }
            }
        });

        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                userToSpeak = userText.getText().toString();
                if (userToSpeak.equals("")) {
                    Toast.makeText(getApplicationContext(), "Please enter your text", Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(getApplicationContext(), userToSpeak, Toast.LENGTH_SHORT).show();
                    t1.speak(userToSpeak, TextToSpeech.QUEUE_FLUSH, null);
                }
            }
        });

        imageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
                intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
                intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
                intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Say something");

                try {
                    startActivityForResult(intent, REQUEST_CODE);
                } catch (Exception e) {
                    Toast.makeText(getApplicationContext(), "Sorry! your device does not support speech input.", Toast.LENGTH_LONG).show();
                }
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        switch (requestCode) {
            case REQUEST_CODE: {
                if (resultCode == RESULT_OK && null != data) {
                    ArrayList<String> res = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
                    userText.setText(res.get(0));
                    Toast.makeText(getApplicationContext(), res.get(0), Toast.LENGTH_SHORT).show();
                    t1.speak(res.get(0), TextToSpeech.QUEUE_FLUSH, null);
                }
                break;
            }
        }
    }

    public void onDestroy() {
        // Don't forget to shutdown!
        if (t1 != null) {
            t1.stop();
            t1.shutdown();
        }
        super.onDestroy();
    }
}
                                    
                                  

                                      
                                        import android.content.Intent
import android.os.Bundle
import android.speech.RecognizerIntent
import android.speech.tts.TextToSpeech
import android.view.View
import android.widget.Button
import android.widget.EditText
import android.widget.ImageView
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import java.util.*

class MainActivity : AppCompatActivity() {

    private lateinit var userText: EditText
    private lateinit var b1: Button
    private lateinit var imageView: ImageView
    private lateinit var t1: TextToSpeech
    private var userToSpeak: String = ""

    private val REQUEST_CODE = 100

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        userText = findViewById(R.id.userText)
        b1 = findViewById(R.id.button)
        imageView = findViewById(R.id.imageMic)

        t1 = TextToSpeech(applicationContext, TextToSpeech.OnInitListener {
            if (it != TextToSpeech.ERROR) {
                t1.language = Locale.UK
            }
        })

        b1.setOnClickListener {
            userToSpeak = userText.text.toString()
            if (userToSpeak.isEmpty()) {
                Toast.makeText(applicationContext, "Please enter your text", Toast.LENGTH_SHORT).show()
            } else {
                Toast.makeText(applicationContext, userToSpeak, Toast.LENGTH_SHORT).show()
                t1.speak(userToSpeak, TextToSpeech.QUEUE_FLUSH, null, null)
            }
        }

        imageView.setOnClickListener {
            val intent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH)
            intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM)
            intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault())
            intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Say something")

            try {
                startActivityForResult(intent, REQUEST_CODE)
            } catch (e: Exception) {
                Toast.makeText(applicationContext, "Sorry! your device does not support speech input.", Toast.LENGTH_LONG).show()
            }
        }
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        when (requestCode) {
            REQUEST_CODE -> {
                if (resultCode == RESULT_OK && data != null) {
                    val res = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS)
                    userText.setText(res?.get(0))
                    Toast.makeText(applicationContext, res?.get(0), Toast.LENGTH_SHORT).show()
                    t1.speak(res?.get(0), TextToSpeech.QUEUE_FLUSH, null, null)
                }
            }
        }
    }

    override fun onDestroy() {
        // Don't forget to shutdown!
        t1.stop()
        t1.shutdown()
        super.onDestroy()
    }
}