Byron Kiourtzoglou

About Byron Kiourtzoglou

Byron is a master software engineer working in the IT and Telecom domains. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.

Android Text-To-Speech Application

In this tutorial we shall show you how to use the TextToSpeech class to convert Text-to-Speech in Android. The idea is straightforward. We want to type text in an text area and then press button to transform it to speech. You can actually listen to it when you launch the built in application of Android.
 
 
 
 
 
 
 

So the basic steps you have to take in order to convert Text to Speech in Anroid you have to:

  • Create an Activity that extends OnInitListner
  • Specify and create a TextToSpeech instance
  • Create an EditText component for the User to type his text
  • Create a Button that when clicked the text is converted to speech and played through the speakers
  • Create a new Intent and use setAction to set up the intent with the TextToSpeech engine
package com.javacodegeeks.android.tts;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class TtsActivity extends Activity implements OnInitListener {

    private int MY_DATA_CHECK_CODE = 0;

    private TextToSpeech tts;

    private EditText inputText;
    private Button speakButton;

 @Override
 public void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);

  inputText = (EditText) findViewById(R.id.input_text);
  speakButton = (Button) findViewById(R.id.speak_button);

  speakButton.setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View v) {

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

 if (text!=null && text.length()>0) {
    Toast.makeText(TtsActivity.this, "Saying: " + text, Toast.LENGTH_LONG).show();
    tts.speak(text, TextToSpeech.QUEUE_ADD, null);

 }
   }

});

  Intent checkIntent = new Intent();

checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);

startActivityForResult(checkIntent, MY_DATA_CHECK_CODE);

    }
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

  if (requestCode == MY_DATA_CHECK_CODE) {

if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {

    // success, create the TTS instance

    tts = new TextToSpeech(this, this);

} 

else {

    // missing data, install it

    Intent installIntent = new Intent();

    installIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);

    startActivity(installIntent);

}

  }

    }

    @Override
    public void onInit(int status) {

  if (status == TextToSpeech.SUCCESS) {

Toast.makeText(TtsActivity.this, 

  "Text-To-Speech engine is initialized", Toast.LENGTH_LONG).show();

  }

  else if (status == TextToSpeech.ERROR) {

Toast.makeText(TtsActivity.this, 

  "Error occurred while initializing Text-To-Speech engine", Toast.LENGTH_LONG).show();

  }
    }

}

 
This was an Android tutorial an how to convert Text to Speech.

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