语音识别——练习中
模拟器看不出效果,手机上可以正常语音
方法：
public class VoiceActivity extends Activity {private static final int VOICE_RECOGNITION_REQUEST_CODE = 4321;private ListView mlist;private String resultString;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);mlist = (ListView) findViewById(R.id.lists);Button button = (Button) findViewById(R.id.btn);button.setOnClickListener(new OnClickListener() {public void onClick(View arg0) {try {Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "开始语音");startActivityForResult(intent,VOICE_RECOGNITION_REQUEST_CODE);} catch (Exception e) {Toast.makeText(VoiceActivity.this, "找不到语音设备装配",Toast.LENGTH_SHORT).show();e.printStackTrace();}}});}// 当语音结束时的回调函数onActivityResult@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {// 判断是否是我们执行的语音识别if (requestCode == VOICE_RECOGNITION_REQUEST_CODE&& resultCode == RESULT_OK) {// 取得语音字符ArrayList<String> results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);// 设置试图更新// mlist.setAdapter(new ArrayAdapter<String>(this,,// android.R.layout.simple_list_item_1,results));String resultsString = "";for (int i = 0; i < results.size(); i++) {resultString += results.get(i);}Toast.makeText(this, resultsString, Toast.LENGTH_SHORT).show();}super.onActivityResult(requestCode, resultCode, data);}}?
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在main.xml中布局：
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <Button android:id="@+id/btn" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="开始语音识别" /> <ListView android:id="@+id/lists" android:layout_width="fill_parent" android:layout_height="fill_parent" > </ListView></LinearLayout>
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