我在下面找到了一个示例代码：它来自链接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>
我将它复制到我的 myeclipse 并尝试运行它，但我的 Galaxy S3 崩溃了，错误消息如下：
08-23 00:09:16.975: D/AndroidRuntime(17638): Shutting down VM
08-23 00:09:16.975: W/dalvikvm(17638): threadid=1: thread exiting with uncaught exception (group=0x40c6f1f8)
08-23 00:09:16.980: E/AndroidRuntime(17638): FATAL EXCEPTION: main
08-23 00:09:16.980: E/AndroidRuntime(17638): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.voicerecognition/app.test.MainActivity}: java.lang.ClassNotFoundException: app.test.MainActivity
08-23 00:09:16.980: E/AndroidRuntime(17638): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1894)
08-23 00:09:16.980: E/AndroidRuntime(17638): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1995)
08-23 00:09:16.980: E/AndroidRuntime(17638): at android.app.ActivityThread.access$600(ActivityThread.java:128)
08-23 00:09:16.980: E/AndroidRuntime(17638): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1161)
08-23 00:09:16.980: E/AndroidRuntime(17638): at android.os.Handler.dispatchMessage(Handler.java:99)
08-23 00:09:16.980: E/AndroidRuntime(17638): at android.os.Looper.loop(Looper.java:137)
08-23 00:09:16.980: E/AndroidRuntime(17638): at android.app.ActivityThread.main(ActivityThread.java:4517)
08-23 00:09:16.980: E/AndroidRuntime(17638): at java.lang.reflect.Method.invokeNative(Native Method)
08-23 00:09:16.980: E/AndroidRuntime(17638): at java.lang.reflect.Method.invoke(Method.java:511)
08-23 00:09:16.980: E/AndroidRuntime(17638): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:993)
08-23 00:09:16.980: E/AndroidRuntime(17638): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760)
08-23 00:09:16.980: E/AndroidRuntime(17638): at dalvik.system.NativeStart.main(Native Method)
08-23 00:09:16.980: E/AndroidRuntime(17638): Caused by: java.lang.ClassNotFoundException: app.test.MainActivity
08-23 00:09:16.980: E/AndroidRuntime(17638): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
08-23 00:09:16.980: E/AndroidRuntime(17638): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
08-23 00:09:16.980: E/AndroidRuntime(17638): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
08-23 00:09:16.980: E/AndroidRuntime(17638): at android.app.Instrumentation.newActivity(Instrumentation.java:1027)
08-23 00:09:16.980: E/AndroidRuntime(17638): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1885)
08-23 00:09:16.980: E/AndroidRuntime(17638): ... 11 more
有人可以帮忙吗？谢谢！