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;

	@Override
	public 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
	@Override
	protected 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);

	}
}

 

 

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>