A basic activity to start to play with TextToSpeech on Android

TTSTestActivity.java

public class TTSTestActivity extends Activity implements OnInitListener {
	private static final int MY_DATA_CHECK_CODE = 0;
	private TextToSpeech mTts;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		setContentView(R.layout.tts_layout);
		
		// check whether TTS resources are available on the device
		Intent checkIntent = new Intent();
		checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
		startActivityForResult(checkIntent, MY_DATA_CHECK_CODE);
	
		super.onCreate(savedInstanceState);
	}
	
	@Override
	public void onInit(int i) {
		// called as soon as the TextToSpeech instance is intialized
		// set the locale
		mTts.setLanguage(Locale.US);
		
		// add your text speech
		String myText1 = "Hello Master !";
		String myText2 = "I am C3PO, Human-Cyborg relations. And this is my counterpart, R2D2.";
		mTts.speak(myText1, TextToSpeech.QUEUE_FLUSH, null);
		mTts.speak(myText2, TextToSpeech.QUEUE_ADD, null);
		
	}
	

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (requestCode==MY_DATA_CHECK_CODE) {
			if(resultCode==TextToSpeech.Engine.CHECK_VOICE_DATA_PASS){
				// if TTS resources are available you instanciate your TextToSpeech object
				mTts = new TextToSpeech(this, this);
			} else {
				// else you ask the system to install it
				Intent installTTSIntent = new Intent();
				installTTSIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
				startActivity(installTTSIntent);
			}
		}	
	}
	

}

You can check-out Very short intro to Text To Speech on Android for more infomation.