Speech Recognition

Hello Friends,

Here I am sharing a sample code for Speech Recognition in Android.

Using Speech Recognition app, you can see what you said and its similar forms.

Sample Code:

File: MainActivity.java

package com.sneha.speechrecognitiondemo;

import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends Activity 
{
     private SpeechRecognizer speechRecognizer; 
     private final int SPEECHTOTEXT = 1;

    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        // Getting an instance of SpeechRecognizerduration
        speechRecognizer = SpeechRecognizer.createSpeechRecognizer(getBaseContext());
        
        // Setting Speech Recognition Listener
        //speechRecognizer.setRecognitionListener(this);
        
        // Getting an instance of btn_speak
        Button btnSpeak = (Button) findViewById(R.id.btn_speak);
        
        // Defining button click listener
        OnClickListener onClickListener = new OnClickListener() 
        {
@Override
public void onClick(View v) 
{
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);

// Getting an instance of PackageManager
PackageManager pm = getPackageManager();

// Querying Package Manager
List<ResolveInfo> activities = pm.queryIntentActivities(intent, 0);

if(activities.size()<=0)
{
Toast.makeText(getBaseContext(), "No Activity found to handle the action                                           ACTION_RECOGNIZE_SPEECH", Toast.LENGTH_SHORT).show();
return;
}

                intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,                                                       RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
                intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Voice Recognition...");
                startActivityForResult(intent, SPEECHTOTEXT);
}
};

//Setting a click event handler for the button
btnSpeak.setOnClickListener(onClickListener);
    }
    
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data)
    {
        super.onActivityResult(requestCode, resultCode, data);
        
        //EditText etText = (EditText) findViewById(R.id.et_text);
        ListView lvText = (ListView) findViewById(R.id.lv_text);
       
        switch (requestCode) 
        {
       case SPEECHTOTEXT: 
           if (resultCode == RESULT_OK && null != data)
           {  
               ArrayList<String> text = data.getStringArrayListExtra                                                                           (RecognizerIntent.EXTRA_RESULTS);  
        
               ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(),                                   android.R.layout.simple_list_item_1, text);
               
               lvText.setAdapter(adapter);                
           }
           break;
   }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) 
    {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }   
}

Output:

Download Full Source Code From Here: SpeechRecognition

Happy Coding...!!!