SpeechRecognizer：没有选择语音识别服务

Question

这就是我开始 RecogniseListener 意图的方式：

Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);   
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);

intent.putExtra("android.speech.extra.DICTATION_MODE", true);               
intent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,this.getPackageName());
intent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, true);
intent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS,1);
sr.startListening(intent);

但是，我得到了一个奇怪的行为。它适用于某些手机（在本例中为三星 Galaxy S5），但在联想 K50-T5 上出现以下错误：

E/SpeechRecognizer: no selected voice recognition service

这是我的 AndroidManifest.xml：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="lips.deafcommunication.deaflips">

<uses-permission android:name="android.permission.RECORD_AUDIO" />

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppThemeNoBar">
    <activity android:name=".MainActivity"
        android:screenOrientation="portrait">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name=".ChatInProgressActivity" android:screenOrientation="portrait"
                android:windowSoftInputMode="adjustPan"
                android:configChanges="keyboardHidden|orientation|screenSize"
        ></activity>
</application>
</manifest>

Answer 1

在我的情况下，如果他/她默认未选择语音识别器服务，则用户设备会发出此警告情况这是设置此问题的照片，您在照片中看到默认情况下未选择服务，

我通过显式添加 GoogleRecognitionService 到我的SpeechRecognizer 来解决这个问题，最后我的代码看起来像这样

 this.speechRecognizer = SpeechRecognizer.createSpeechRecognizer(getActivity(), ComponentName.unflattenFromString("com.google.android.googlequicksearchbox/com.google.android.voicesearch.serviceapi.GoogleRecognitionService"));

所以你的代码看起来像你使用默认的语音意图，在这里制作你自己的自定义识别监听器是链接到How can I use speech recognition without the annoying dialog in android phones

注意：确保已安装Google app

Answer 2

这意味着用户根本没有安装语音识别器，或者没有配置运行。您无法解决此问题，用户必须安装一个。

Answer 3

该错误表明没有可用的语音识别器服务。您应该在调用 SpeechRecognizer.createSpeechRecognizer 之前测试这种情况。

import android.speech;

if(SpeechRecognizer.isRecognitionAvailable(this)) {
    SpeechRecognizer sr = SpeechRecognizer.createSpeechRecognizer(this);
} else {
    // SOME SORT OF ERROR
}

Answer 4

为了使Hamza's solution 万无一失，您可以添加以下检查，以预先排除startVoiceRecognition() 上的日志中的不同错误

private static final String GOOGLE_RECOGNITION_SERVICE_NAME = "com.google.android.googlequicksearchbox/com.google.android.voicesearch.serviceapi.GoogleRecognitionService"

public static boolean isSpeechRecognizerAvailable() {
    if (sIsSpeechRecognizerAvailable == null) {
        boolean isRecognitionAvailable = context != null && context.getPackageManager() != null
                && SpeechRecognizer.isRecognitionAvailable(context);
        if (isRecognitionAvailable) {
            ServiceConnection connection = new ServiceConnection() {
                @Override
                public void onServiceConnected(ComponentName name, IBinder service) {

                }

                @Override
                public void onServiceDisconnected(ComponentName name) {

                }
            };
            Intent serviceIntent = new Intent(RecognitionService.SERVICE_INTERFACE);
            ComponentName recognizerServiceComponent = ComponentName.unflattenFromString(GOOGLE_RECOGNITION_SERVICE_NAME);
            if (recognizerServiceComponent == null) {
                return false;
            }

            serviceIntent.setComponent(recognizerServiceComponent);
            boolean isServiceAvailableToBind = context.bindService(serviceIntent, connection, Context.BIND_AUTO_CREATE);
            if (isServiceAvailableToBind) {
                context.unbindService(connection);
            }
            sIsSpeechRecognizerAvailable = isServiceAvailableToBind;
        } else {
            sIsSpeechRecognizerAvailable = false;
        }
    }
    return sIsSpeechRecognizerAvailable;
}

然后使用相同的组件名称来初始化语音识别器

this.speechRecognizer = SpeechRecognizer.createSpeechRecognizer(context, ComponentName.unflattenFromString(GOOGLE_RECOGNITION_SERVICE_NAME));