我目前正在开发一个应用程序,我需要能够让用户控制应用程序,除非他们的声音,如果有必要。我得到了一些显然来自Android的语音识别代码的副本,我尝试在我的应用程序中使用它。代码本身看起来相当简单,但我需要帮助理解一些部分并在应用程序上实现它。我在Android设备上运行了应用程序,当我使用语音时,我得到了一个我可能会说的短语列表。我希望能够设置和活动,如果其中一个结果是“关闭应用程序”,例如它将关闭应用程序。我想我可以通过对语音识别器的结果做一个if语句来设置它。如果结果==关闭app然后运行活动关闭。我没有任何这样的设置,因为我不确定如何编码它,但我认为你们中的一些人会有一些想法。
package com.example.com.proto1;
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 VoiceRecognition 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.voice_recognition);
// 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);
}
}
答案 0 :(得分:3)
这是您从语音识别活动中收到的结果:
ArrayList<String> matches = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
matches
是您发音的可能文本列表。如果你想关闭你的应用程序,当一些神奇的短语说你需要这样的东西:
if (matches.contains("close")) {
finish();
}
答案 1 :(得分:3)