com.github.zagum.speechrecognitionview.sample.MainActivity.java Source code

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Here is the source code for com.github.zagum.speechrecognitionview.sample.MainActivity.java

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/*
 * Copyright (C) 2016 Evgenii Zagumennyi
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.github.zagum.speechrecognitionview.sample;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import com.github.zagum.speechrecognitionview.RecognitionProgressView;
import com.github.zagum.speechrecognitionview.adapters.RecognitionListenerAdapter;

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

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "MainActivity";
    private static final int REQUEST_RECORD_AUDIO_PERMISSION_CODE = 1;

    private SpeechRecognizer speechRecognizer;

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

        int[] colors = { ContextCompat.getColor(this, R.color.color1), ContextCompat.getColor(this, R.color.color2),
                ContextCompat.getColor(this, R.color.color3), ContextCompat.getColor(this, R.color.color4),
                ContextCompat.getColor(this, R.color.color5) };

        int[] heights = { 60, 76, 58, 80, 55 };

        speechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);

        final RecognitionProgressView recognitionProgressView = (RecognitionProgressView) findViewById(
                R.id.recognition_view);
        recognitionProgressView.setSpeechRecognizer(speechRecognizer);
        recognitionProgressView.setRecognitionListener(new RecognitionListenerAdapter() {
            @Override
            public void onResults(Bundle results) {
                showResults(results);
            }
        });
        recognitionProgressView.setColors(colors);
        recognitionProgressView.setBarMaxHeightsInDp(heights);
        recognitionProgressView.play();

        Button listen = (Button) findViewById(R.id.listen);
        Button reset = (Button) findViewById(R.id.reset);

        listen.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (ContextCompat.checkSelfPermission(MainActivity.this,
                        Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
                    requestPermission();
                } else {
                    startRecognition();
                    recognitionProgressView.postDelayed(new Runnable() {
                        @Override
                        public void run() {
                            startRecognition();
                        }
                    }, 50);
                }
            }
        });

        reset.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                recognitionProgressView.stop();
                recognitionProgressView.play();
            }
        });
    }

    @Override
    protected void onDestroy() {
        if (speechRecognizer != null) {
            speechRecognizer.destroy();
        }
        super.onDestroy();
    }

    private void startRecognition() {
        Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        intent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, getPackageName());
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, "en");
        speechRecognizer.startListening(intent);
    }

    private void showResults(Bundle results) {
        ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
        Toast.makeText(this, matches.get(0), Toast.LENGTH_LONG).show();
    }

    private void requestPermission() {
        if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.RECORD_AUDIO)) {
            Toast.makeText(this, "Requires RECORD_AUDIO permission", Toast.LENGTH_SHORT).show();
        } else {
            ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.RECORD_AUDIO },
                    REQUEST_RECORD_AUDIO_PERMISSION_CODE);
        }
    }
}