【发布时间】：2013-04-26 04:32:59
【问题描述】：
我目前正在寻找从事 JAVA 的职业，并决定从构建应用程序开始。 我在这里有这段代码，我用它来触发语音识别。
public class MainActivity extends Activity implements OnClickListener{
private static final int VR_REQUEST = 999;
private ListView wordList;
private final String LOG_TAG = "SpeechRepeatActivity";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button speechBtn = (Button) findViewById(R.id.speech_btn);
wordList = (ListView) findViewById (R.id.word_list);
PackageManager packManager= getPackageManager();
List<ResolveInfo> intActivities = packManager.queryIntentActivities
(new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);
if (intActivities.size() !=0){
speechBtn.setOnClickListener(this);
} else {
speechBtn.setEnabled(false);
Toast.makeText(this,"Oops - Speech Recognition Not Supported!",
Toast.LENGTH_LONG).show();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void onClick(View v){
if (v.getId() == R.id.speech_btn) {
listenToSpeech();
}
}
private void listenToSpeech() {
//start the speech recognition intent passing required data
Intent listenIntent =
new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
//indicate package
listenIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,
getClass().getPackage().getName());
//message to display while listening
listenIntent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Say a word!");
//set speech model
listenIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
//specify number of results to retrieve
listenIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 10);
//start listening
startActivityForResult(listenIntent, VR_REQUEST);
}
@Override
protected void onActivityResult(int requestCode,
int resultCode, Intent data) {
//check speech recognition result
if (requestCode == VR_REQUEST && resultCode == RESULT_OK) {
//store the returned word list as an ArrayList
ArrayList<String> suggestedWords = data.
getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
//set the retrieved list to display in the ListView
//using an ArrayAdapter
wordList.setAdapter(new ArrayAdapter<String>
(this, R.layout.word, suggestedWords));
}
//this detects which one the user clicks
wordList.setOnItemClickListener(new OnItemClickListener(){
//click listener for items within list
public void onItemClick(AdapterView<?> parent,
View view, int position, long id){
//cast the
TextView wordView = (TextView)
//retrive the chosen word
String wordChosen= (String) wordView.
//output for debugging
Log.v(LOG_TAG, "chosen:" +wordChosen);
}});
super.onActivityResult(requestCode, resultCode, data);
}
}
在这个应用程序中，用户按下一个按钮并显示在 Google 语音输入屏幕上，您可以在其中单击一个按钮（它实际上是自动运行的）并且您可以说话，它会停止并显示它。我根本不希望那个窗口弹出。相反，只需让用户单击按钮并能够说话，让应用停止并自动显示文本（它已经这样做了）。
请！我知道表单上已经有显示如何执行此操作的答案，实际上是用户名 JEEZ 发布了some code right here。
我不知道我是否理解将它放在我的项目文件中的哪个位置。我是菜鸟！如果有人可以帮助澄清这一点，我将非常感谢您的帮助。
这是我的代码：
package com.example.speechrecognizertest;
import android.os.Bundle;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.TextView;
import android.app.Activity;
import android.view.Menu;
public class MainActivity extends Activity {
private static final int VR_REQUEST = 999;
public static final String TAG = null;
private ListView wordList;
private final String LOG_TAG = "SpeechRepeatActivity";
private SpeechRecognizer mSpeechRecognizer;
private Intent mSpeechRecognizerIntent;
private boolean mIslistening;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button speechBtn = (Button) findViewById(R.id.speech_btn);
wordList = (ListView) findViewById(R.id.word_list);
PackageManager packManager = getPackageManager();
List<ResolveInfo> intActivities = packManager.queryIntentActivities(
new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);
mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
mSpeechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,
this.getPackageName());
if (!mIslistening)
{
mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
} else {
speechBtn.setEnabled(false);
Toast.makeText(this, "Oops - Speech Recognition Not Supported!",
Toast.LENGTH_LONG).show();
}
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
protected class SpeechRecognitionListener implements RecognitionListener
{
@Override
public void onBeginningOfSpeech()
{
//Log.d(TAG, "onBeginingOfSpeech");
}
@Override
public void onBufferReceived(byte[] buffer)
{
}
@Override
public void onEndOfSpeech()
{
//Log.d(TAG, "onEndOfSpeech");
}
@Override
public void onError(int error)
{
mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
//Log.d(TAG, "error = " + error);
}
@Override
public void onEvent(int eventType, Bundle params)
{
}
@Override
public void onPartialResults(Bundle partialResults)
{
}
@Override
public void onReadyForSpeech(Bundle params)
{
Log.d(TAG, "OnReadyForSpeech"); //$NON-NLS-1$
}
@Override
public void onResults(Bundle results)
{
//Log.d(TAG, "onResults"); //$NON-NLS-1$
ArrayList<String> suggestedWords = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
// matches are the return values of speech recognition engine
// Use these values for whatever you wish to do
wordList.setAdapter(new ArrayAdapter<String>(this, R.layout.word, suggestedWords));
}
@Override
public void onRmsChanged(float rmsdB)
{
}
}
【问题讨论】：
-
谢谢 Hoan，只有一个问题。我看到了您从该教程中引用的代码，但我不知道如何将其合并到我的项目中。你能帮忙吗？
-
你使用activity对吗？
-
我不确定你的意思。我已经在主文档中发布了我的所有代码。活动（我认为这意味着布局）有一个按钮和一个列表视图。除此之外，所有内容都显示在问题上。 （我真的希望我能回答你的问题）。在这里只是一个编辑-我不使用我不相信的活动，因为它从未被调用过。所有这些都属于代码主要活动。我将如何使用该活动？我为什么要使用它，它将为我做什么？非常感谢您的快速回复！
-
嗨，霍恩！我想在你的帖子中发表评论，但由于某种原因，我认为我也不允许...... :(。你给我的东西非常有帮助。我认为我遇到的主要问题是我没有不知道用什么替换。我理解前三个步骤，但不明白 onDestroy 是什么以及是否应该用某些东西替换类。非常完整的答案，非常感谢！另外，我知道你显然是专业人士，我很想努力赶上你的水平。如果你能提出任何建议来帮助我学习，那将非常有帮助！
标签： java android voice-recognition