Android实时语音_实时语音识别

Android实时语音_实时语音识别

实时语音识别在Android应用中是一项非常实用的功能，它可以让用户通过语音与应用进行交互，而无需手动输入，以下是实现Android实时语音识别的详细步骤：

1. 添加依赖

需要在项目的build.gradle文件中添加Google的Speech Recognition库依赖。

dependencies {    implementation 'com.google.android.gms:playservicesspeech:18.0.0'}

2. 获取权限

在AndroidManifest.xml文件中添加必要的权限。

<usespermission android:name="android.permission.INTERNET" /><usespermission android:name="android.permission.RECORD_AUDIO" /><usespermission android:name="android.permission.ACCESS_NETWORK_STATE" /><usespermission android:name="android.permission.WAKE_LOCK" />

3. 创建RecognizerIntent

创建一个RecognizerIntent并设置其参数。

private static final int REQUEST_CODE_SPEECH_INPUT = 1000;private RecognizerIntent recognizerIntent;recognizerIntent = new RecognizerIntent(RecognitionListener.CALLBACK_MODE, "Watson Speech to Text", "enUS");recognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE, "enUS");recognizerIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 3);

4. 启动语音识别

使用startActivityForResult方法启动语音识别。

try {    startActivityForResult(recognizerIntent, REQUEST_CODE_SPEECH_INPUT);} catch (ActivityNotFoundException a) {    // Handle the error}

5. 处理结果

在onActivityResult方法中处理语音识别的结果。

@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {    super.onActivityResult(requestCode, resultCode, data);    if (requestCode == REQUEST_CODE_SPEECH_INPUT && resultCode == RESULT_OK) {        ArrayList<String> results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);        // Do something with the results    }}