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android speechrecognizer如何配置

小樊
81
2024-11-25 18:25:57
欄目: 編程語言

要配置Android SpeechRecognizer,您需要遵循以下步驟:

  1. 添加權限:在AndroidManifest.xml文件中添加以下權限,以訪問麥克風和其他必需的功能。
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.INTERNET" />
  1. 檢查運行時權限:確保在運行時請求錄音權限。在您的Activity中添加以下代碼:
private static final int REQUEST_RECORD_AUDIO_PERMISSION = 200;

private void requestRecordAudioPermission() {
    if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO}, REQUEST_RECORD_AUDIO_PERMISSION);
    } else {
        startSpeechRecognizer();
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if (requestCode == REQUEST_RECORD_AUDIO_PERMISSION) {
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            startSpeechRecognizer();
        } else {
            Toast.makeText(this, "Permission denied. Could not use speech recognition.", Toast.LENGTH_SHORT).show();
        }
    }
}

在onCreate()方法中調用requestRecordAudioPermission():

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

    requestRecordAudioPermission();
}
  1. 初始化SpeechRecognizer:在您的Activity中添加以下代碼以初始化SpeechRecognizer。
private SpeechRecognizer speechRecognizer;
private Intent speechRecognizerIntent;

private void startSpeechRecognizer() {
    speechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
    speechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, "en-US");
    speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, true);
}
  1. 設置監聽器:創建一個實現SpeechRecognizer.OnResultsListener接口的類,并在其中處理識別結果。
private class SpeechRecognizerListener implements SpeechRecognizer.OnResultsListener {
    @Override
    public void onResults(Bundle results) {
        ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
        if (matches != null && !matches.isEmpty()) {
            String recognizedText = matches.get(0);
            Toast.makeText(MainActivity.this, "Recognized: " + recognizedText, Toast.LENGTH_SHORT).show();
        }
    }

    @Override
    public void onError(int error) {
        Toast.makeText(MainActivity.this, "Error: " + error, Toast.LENGTH_SHORT).show();
    }
}
  1. 開始識別:在startSpeechRecognizer()方法中添加以下代碼以開始識別。
speechRecognizer.setRecognitionListener(new SpeechRecognizerListener());
speechRecognizer.startListening(speechRecognizerIntent);

現在,您已經配置了Android SpeechRecognizer。當用戶說話時,它將識別并顯示所說的內容。

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