This
is a sample activity which shows How to use Android’s Text to Speech
capabilities. Text to Speech was introduced in Android 1.6, so when you create
your new Android project make sure your minimum required SDK is set to Android
1.6 (or API level 4).
Basic
description of algorithm in step by step form:
1.)
Create a Project TextToSpeech.
2.)
Put the following code snippet in res/layout/main.xml:
<?xml version="1.0" encoding="utf-8"?>
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<EditText android:id="@+id/input_text"
android:text=""
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<Button android:id="@+id/speak_button"
android:text="Speak to me"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
Steps to Create:
1.)
Open Eclipse. Use the New Project Wizard and select Android Project Give the
respective project name i.e. MyTextToSpeech. Enter following information:
Project
name: TextToSpeech
Build
Target: Android APIs 2.2
Application
name: TextToSpeech
Package
name: com.app.texttopeech
Create
Activity: TextToSpeech
Put the
following code in src/com.app.texttopeech/TextToSpeech
package com.app.TextToSpeech;
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 TextToSpeech
extends Activity implements OnInitListener{
/** Called when the activity is first created. */
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(MyTextToSpeech.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(MyTextToSpeech.this, "Text-To-Speech engine
is initialized", Toast.LENGTH_LONG).show();
}
else if (status
== TextToSpeech.ERROR) {
Toast.makeText(MyTextToSpeech.this, "Error occurred while
initializing Text-To-Speech engine", Toast.LENGTH_LONG).show();
}
}
}
Run the Application
Output –The final output:
from the toolbar.
from the toolbar.
Figure 1.