Voice Recognition (Speech to Text)

Voice Recognition (Speech to Text)

colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="white">#ffffff</color>
    <color name="bg_gradient_start">#31244e</color>
    <color name="bg_gradient_end">#6b394c</color>
</resources>


strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">Speech To Text</string>
    <string name="action_settings">Settings</string>
    <string name="hello_world">Hello world!</string>
    <string name="speech_prompt">Say something&#8230;</string>
    <string name="speech_not_supported">Sorry! Your device doesn\'t support speech input</string>
    <string name="tap_on_mic">Tap on mic to speak</string>
</resources>



activity_main.xml
<RelativeLayout 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/txtSpeechInput"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="100dp"
        android:textColor="@color/white"
        android:textSize="26dp"
        android:textStyle="normal" />
 
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="60dp"
        android:gravity="center"
        android:orientation="vertical" >
 
        <ImageButton
            android:id="@+id/btnSpeak"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@null"
            android:src="@drawable/ico_mic" />
 
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:text="@string/tap_on_mic"
            android:textColor="@color/white"
            android:textSize="15dp"
            android:textStyle="normal" />
    </LinearLayout>
 
</RelativeLayout>




MainActivity.java


package info.androidhive.speechtotext;

import java.util.ArrayList;
import java.util.Locale;
 
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.view.Menu;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;
 
public class MainActivity extends Activity {
 
    private TextView txtSpeechInput;
    private ImageButton btnSpeak;
    private final int REQ_CODE_SPEECH_INPUT = 100;
 
    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
 @SuppressLint("NewApi")
 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        txtSpeechInput = (TextView) findViewById(R.id.txtSpeechInput);
        txtSpeechInput.setTextColor(Color.RED);
        txtSpeechInput.setText("Click on Microphone and speak");




        btnSpeak = (ImageButton) findViewById(R.id.btnSpeak);


 


        // hide the action bar
       getActionBar().hide();
 
        btnSpeak.setOnClickListener(new View.OnClickListener() {
 
            @Override
            public void onClick(View v) {
                promptSpeechInput();
            }
        });
 
    }
 
    /**
     * Showing google speech input dialog
     * */
    private void promptSpeechInput() {
        Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
                RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
        intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
                getString(R.string.speech_prompt));
        try {
            startActivityForResult(intent, REQ_CODE_SPEECH_INPUT);
        } catch (ActivityNotFoundException a) {
            Toast.makeText(getApplicationContext(),
                    getString(R.string.speech_not_supported),
                    Toast.LENGTH_SHORT).show();
        }
    }
 
    /**
     * Receiving speech input
     * */
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
 
        switch (requestCode) {
        case REQ_CODE_SPEECH_INPUT: {
            if (resultCode == RESULT_OK && null != data) {
 
                ArrayList<String> result = data
                        .getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
                
                txtSpeechInput.setTextColor(Color.RED);
                txtSpeechInput.setText(result.get(0));
            }
            break;
        }
 
        }
    }
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
 
}


































ico_mic.png




































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