Voice recognizer + Text to speech

Merge last two post; Start Android system's voice recognizer using Intent & Implement Android's Text to speech function.



Onec the recognized result selected, it will be speeched using TTS.

package com.AndroidRecognizer;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.Toast;

public class AndroidRecognizer extends Activity implements OnInitListener{
 
 TextToSpeech tts;
 
 Button startRecognizer;
 Spinner spinnerResult;
 
 private static final int RQS_RECOGNITION = 1;
 
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
   startRecognizer = (Button)findViewById(R.id.startrecognizer);
   startRecognizer.setEnabled(false);
   
   spinnerResult = (Spinner)findViewById(R.id.result);
   
   startRecognizer.setOnClickListener(startRecognizerOnClickListener);
   
   tts = new TextToSpeech(this, this);
    
  }

  private Button.OnClickListener startRecognizerOnClickListener
   = new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    // TODO Auto-generated method stub
    Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
      RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
      "Speech to Recognize");
    startActivityForResult(intent, RQS_RECOGNITION);
   }
  };

 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  // TODO Auto-generated method stub
  if((requestCode == RQS_RECOGNITION) & (resultCode == RESULT_OK)){
   
   ArrayList<String> result = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
     
      ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                 android.R.layout.simple_list_item_1, result);
      adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
      spinnerResult.setAdapter(adapter);
    
      spinnerResult.setOnItemSelectedListener(spinnerResultOnItemSelectedListener);
   
  }
   
 }

 private Spinner.OnItemSelectedListener spinnerResultOnItemSelectedListener
 = new Spinner.OnItemSelectedListener(){

  @Override
  public void onItemSelected(AdapterView<?> parent, View view, int position,
    long id) {
   // TODO Auto-generated method stub
   String selectedResult = parent.getItemAtPosition(position).toString();
   Toast.makeText(AndroidRecognizer.this, selectedResult, Toast.LENGTH_SHORT).show();
   tts.speak(selectedResult, TextToSpeech.QUEUE_ADD, null);
   
  }

  @Override
  public void onNothingSelected(AdapterView<?> arg0) {
   // TODO Auto-generated method stub
   
  }};

 @Override
 public void onInit(int arg0) {
  // TODO Auto-generated method stub
  startRecognizer.setEnabled(true);
 }

}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="@string/hello"
  />
<Button
  android:id="@+id/startrecognizer"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Start Recognizer"
  />
<Spinner
  android:id="@+id/result"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  />
</LinearLayout>

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