Create Voice Search Android Application Using Android Studio

Introduction

Android is one of the most popular operating systems for mobile. In this article, I will show you how to create a Voice Search android application using an android studio.

Requirements

Android Studio version 2.3.3
Little bit XML and JAVA knowledge.
Android Emulator (or) Android mobile
Download link (Android Studio)

Steps should be followed

These steps create a Voice Search Android application using Android studio and I have included the source code below.

Step 1

Open Android Studio and Start a New Android Studio Project.

Step 2

You can choose your application name and choose where your project is stored on the location. If you wish to use C++ for coding the project, mark the "Include C++ support", and click the "Next" button.

Now, select the version of Android and select the target Android devices.

Step 3

Now, add the activity and click the "Next" button.

Add Activity name and click "Finish".

Step 4

Go to activity_main.xml, This XML file contains the designing code for an Android app in the activity_main.xml;

The XML code given below.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingBottom="4dip"
android:text="Click the button " />
<EditText
android:id="@+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10" >
<requestFocus />
</EditText>
<Button android:id="@+id/speakButton"
android:layout_width="fill_parent"
android:onClick="speakButtonClicked"
android:layout_height="wrap_content"
android:text="Click here!" />
</LinearLayout>

Step 5

Go to Main Activity.java, This Java program is the backend language for an Android.

The java code is given below

package abu.myapplication;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.speech.RecognizerIntent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity
{
EditText ed;
TextView tv;
private static final int REQUEST_CODE = 1234;
Button speak;@
Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button speak = (Button) findViewById(R.id.speakButton);
ed = (EditText) this.findViewById(R.id.editText1);
tv = (TextView) this.findViewById(R.id.textView1);
// Disable button if no recognition service is present
PackageManager pm = getPackageManager();
List < ResolveInfo > activities = pm.queryIntentActivities(new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);
if (activities.size() == 0)
{
speak.setEnabled(false);
speak.setText("Recognizer not present");
}
ed.addTextChangedListener(new TextWatcher()
{@
Override
public void beforeTextChanged(CharSequence s, int start, int count, int after)
{
// TODO Auto-generated method stub
}@
Override
public void onTextChanged(CharSequence s, int start, int before, int count)
{
// TODO Auto-generated method stub
}@
Override
public void afterTextChanged(Editable s)
{
// TODO Auto-generated method stub
speak.setEnabled(false);
}
});
}
/**
* Handle the action of the button being clicked
*/
public void speakButtonClicked(View v)
{
startVoiceRecognitionActivity();
}
/**
* Fire an intent to start the voice recognition activity.
*/
private void startVoiceRecognitionActivity()
{
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Voice searching...");
startActivityForResult(intent, REQUEST_CODE);
}
/**
* Handle the results from the voice recognition activity.
*/
@
Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == REQUEST_CODE && resultCode == RESULT_OK)
{
// Populate the wordsList with the String values the recognition engine thought it heard
final ArrayList < String > matches = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
if (!matches.isEmpty())
{
String Query = matches.get(0);
ed.setText(Query);
speak.setEnabled(false);
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}

Step 6

Now, go to the menu bar and click make a project or press ctrl+f9. To debug the error.

Step 7

Then click Run button or press shift+f10 To run the project. And choose the virtual machine and click OK.

Conclusion

We have successfully created a Voice Search Android application using the Android studio.

5 Comments

Join the conversation! Your thoughts help the community grow.

Muhammmad Shabber8y ago
If this is a Voice Search then what are we comparing the speech result to ? Also it crashes after speech recognition when run on my Samsung Galaxy 6.
Paul Hinrichsen9y ago
If this is a Voice Search then what are we comparing the speech result to ? Also it crashes after speech recognition when run on my Samsung Galaxy 6.
- Abubackkar Shithik8y ago
  Contact me on [email protected]
Paul Hinrichsen9y ago
Hi and thank you for this.
Prabakaran M9y ago
Nice article thanks for sharing.......