Untitled

package com.example.txttospch;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.view.View;
import android.widget.EditText;
import java.util.Locale;
public class MainActivity extends AppCompatActivity {
EditText e1;
TextToSpeech t1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
e1 = findViewById(R.id.edittext);
t1 = new TextToSpeech(getApplicationContext(), new
TextToSpeech.OnInitListener() {
@Override
public void onInit(int i) {
if(i!=TextToSpeech.ERROR){
t1.setLanguage(Locale.UK);
}
}
});
}
public void convert(View view){
String toSpeak=e1.getText().toString();
t1.speak(toSpeak,TextToSpeech.QUEUE_FLUSH,null);
}
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_marginEnd="98dp"
android:layout_marginBottom="639dp"
android:text="Text to Speech"
android:textColor="@color/black"
android:textSize="32sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="@+id/edittext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_marginEnd="101dp"
android:layout_marginBottom="502dp"
android:ems="10"
android:hint="type text here"
android:inputType="textPersonName" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_marginEnd="159dp"
android:layout_marginBottom="362dp"
android:onClick="convert"
android:text="convert" />
</RelativeLayout>