Android 语音识别接口,android语音识别
投稿于 被查看 1508 次 评论:256
Android 语音识别接口,android语音识别
<无详细内容>1.VoiceRecognition.java
package com.VoiceRecognition; 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; 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); setContentView(R.layout.main); 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"); } } public void onClick(View v) { if (v.getId() == R.id.btn_speak) { startVoiceRecognitionActivity(); } } private void startVoiceRecognitionActivity() { //通过Intent传递语音识别的模式 Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH); //语言模式和自由形式的语音识别 intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM); //提示语音开始 intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speech recognition demo"); //开始执行我们的Intent、语音识别 startActivityForResult(intent, VOICE_RECOGNITION_REQUEST_CODE); } //当语音结束时的回调函数onActivityResult @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == VOICE_RECOGNITION_REQUEST_CODE && resultCode == RESULT_OK) { // 取得语音的字符 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); } }
2.main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:Android="http://schemas.android.com/apk/res/android" Android:orientation="vertical" Android:layout_width="fill_parent" Android:layout_height="fill_parent" > <Button Android:id="@+id/btn_speak" Android:layout_width="fill_parent" Android:layout_height="wrap_content" /> <ListView Android:id="@+id/list" Android:layout_width="fill_parent" Android:layout_height="wrap_content" /> </LinearLayout>
用户评论