Is there a way to use the SpeechRecognizer API directly for speech input?

Question

The Android Dev website provides an example of doing speech input using the built-in Google Speech Input Activity. The activity displays a pre-configured pop-up with the mi

Answer 1

package com.android.example.speechtxt;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.content.ContextCompat;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.view.MotionEvent;
import android.view.View;
import android.widget.RelativeLayout;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.Locale;

public class MainActivity extends AppCompatActivity {

    private RelativeLayout relativeLayout;
    private SpeechRecognizer speechRecognizer;
    private Intent speechintent;
    String keeper="";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        checkVoiceCommandPermission();
        relativeLayout = findViewById(R.id.touchscr);

        speechRecognizer = SpeechRecognizer.createSpeechRecognizer(getApplicationContext());
        speechintent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        speechintent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
        speechintent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());


        speechRecognizer.setRecognitionListener(new RecognitionListener() {
            @Override
            public void onReadyForSpeech(Bundle params) {

            }

            @Override
            public void onBeginningOfSpeech() {

            }

            @Override
            public void onRmsChanged(float rmsdB) {

            }

            @Override
            public void onBufferReceived(byte[] buffer) {

            }

            @Override
            public void onEndOfSpeech() {

            }

            @Override
            public void onError(int error) {

            }

            @Override
            public void onResults(Bundle results)
            {
                ArrayList speakedStringArray = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
                if(speakedStringArray!=null)
                {
                    keeper = speakedStringArray.get(0);

                    Toast.makeText(getApplicationContext(),""+keeper,Toast.LENGTH_SHORT).show();
                }
            }

            @Override
            public void onPartialResults(Bundle partialResults) {

            }

            @Override
            public void onEvent(int eventType, Bundle params) {

            }
        });

        relativeLayout.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                switch (event.getAction())
                {
                    case MotionEvent.ACTION_DOWN:
                        speechRecognizer.startListening(speechintent);
                        keeper="";
                        break;
                    case MotionEvent.ACTION_UP:
                        speechRecognizer.stopListening();
                        break;
                }
                return false;
            }
        });
    }


    private void checkVoiceCommandPermission()
    {
        if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.M)
        {
            if (!(ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.RECORD_AUDIO)== PackageManager.PERMISSION_GRANTED))
            {
                Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, Uri.parse("package:" +getPackageName()));
                startActivity(intent);
                finish();
            }

        }
    }
}