如何使Android語音識別示例正常運行？

Question

我找到一個示例代碼下面在這裏：它來自鏈接http://www.java2s.com/Code/Android/Core-Class/SamplecodethatinvokesthespeechrecognitionintentAPI.htm

/* 
* Copyright (C) 2008 The Android Open Source Project 
* 
* 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 app.test; 

import android.app.Activity; 
import android.content.Intent; 
import android.content.pm.PackageManager; 
import android.content.pm.ResolveInfo; 
import android.os.Bundle; 
import android.speech.RecognizerIntent; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.ListView; 

import java.util.ArrayList; 
import java.util.List; 

/** 
* Sample code that invokes the speech recognition intent API. 
*/ 
public class Test extends Activity implements OnClickListener { 

    private static final int VOICE_RECOGNITION_REQUEST_CODE = 1234; 

    private ListView mList; 

    /** 
    * Called with the activity is first created. 
    */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     // Inflate our UI from its XML layout description. 
     setContentView(R.layout.main); 

     // Get display items for later interaction 
     Button speakButton = (Button) findViewById(R.id.btn_speak); 

     mList = (ListView) findViewById(R.id.list); 

     // Check to see if a recognition activity is present 
     PackageManager pm = getPackageManager(); 
     List<ResolveInfo> activities = pm.queryIntentActivities(
       new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0); 
     if (activities.size() != 0) { 
      speakButton.setOnClickListener(this); 
     } else { 
      speakButton.setEnabled(false); 
      speakButton.setText("Recognizer not present"); 
     } 
    } 

    /** 
    * Handle the click on the start recognition button. 
    */ 
    public void onClick(View v) { 
     if (v.getId() == R.id.btn_speak) { 
      startVoiceRecognitionActivity(); 
     } 
    } 

    /** 
    * Fire an intent to start the speech recognition activity. 
    */ 
    private void startVoiceRecognitionActivity() { 
     Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH); 
     intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, 
       RecognizerIntent.LANGUAGE_MODEL_FREE_FORM); 
     intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speech recognition demo"); 
     startActivityForResult(intent, VOICE_RECOGNITION_REQUEST_CODE); 
    } 

    /** 
    * Handle the results from the recognition activity. 
    */ 
    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     if (requestCode == VOICE_RECOGNITION_REQUEST_CODE && resultCode == RESULT_OK) { 
      // Fill the list view with the strings the recognizer thought it could have heard 
      ArrayList<String> matches = data.getStringArrayListExtra(
        RecognizerIntent.EXTRA_RESULTS); 
      mList.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, 
        matches)); 
     } 

     super.onActivityResult(requestCode, resultCode, data); 
    } 
} 
//main.xml 

<?xml version="1.0" encoding="utf-8"?> 
<!-- 
* Copyright (C) 2008 Google Inc. 
* 
* 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. 
--> 

<!-- This activity displays UI for launching voice recognition --> 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical"> 

    <TextView 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:paddingBottom="4dip" 
     android:text="voice_recognition_prompt" /> 

    <Button android:id="@+id/btn_speak" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:text="speak_button" /> 

    <ListView android:id="@+id/list" 
     android:layout_width="match_parent" 
     android:layout_height="0dip" 
     android:layout_weight="1" /> 

</LinearLayout> 

但它開始在我的Galaxy S3之後，它表明的Recognizer not present，而不是正常流動。我需要做什麼？要安裝某種Google語音識別軟件包？在哪裏以及如何安裝它？ 謝謝！

Answer 1

這是我在ImageView的點擊如何實現的：

iv_speak_title = (ImageView) findViewById(R.id.imageViewAddTaskSpeakTitle); 
     iv_speak_title.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       // TODO Auto-generated method stub 

       which = 1; 

       Intent intent = new Intent(
         RecognizerIntent.ACTION_RECOGNIZE_SPEECH); 

       intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, "en-US"); 

       try { 
        startActivityForResult(intent, RESULT_SPEECH); 
       } catch (ActivityNotFoundException a) { 
        Toast t = Toast.makeText(getApplicationContext(), 
          "Opps! Your device doesn't support Speech to Text", 
          Toast.LENGTH_LONG); 
        t.show(); 
       } 
      } 
     }); 
... 
... 



@Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     super.onActivityResult(requestCode, resultCode, data); 

     switch (requestCode) { 
     case RESULT_SPEECH: { 
      if (resultCode == RESULT_OK && null != data) { 

       ArrayList<String> text = data 
         .getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS); 

       if (which == 1) 
        et_task_brief.setText(text.get(0)); 
       else 
        et_task_notes.setText(text.get(0)); 
      } 
      break; 
     } 
     } 
    } 

希望這有助於;-)