android 语音识别

1.先检测devices是否support.

PackageManager pm = getPackageManager();List<ResolveInfo> activities = pm.queryIntentActivities(new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);if (activities.size() == 0) {btnSpeak.setEnabled(false);btnSpeak.setText("Voice recognize disabled");}

2.发送intent。

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, "start");startActivityForResult(intent, VOICE_RECOGNITION_REQUEST_CODE);} catch (Exception e) {// TODO: handle exceptione.printStackTrace();Toast.makeText(RecognizeCall.this, "Not found voice recognize devices!", Toast.LENGTH_LONG).show();}

3.获取返回的content:

@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {// TODO Auto-generated method stubif (requestCode == VOICE_RECOGNITION_REQUEST_CODE && resultCode == RESULT_OK) {ArrayList<String> results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);String result="";for (String temp : results) {result += temp + "\r\n";}}super.onActivityResult(requestCode, resultCode, data);}

权限：

<uses-permission android:name="android.permission.INTERNET"/>    <uses-permission android:name="android.permission.READ_CONTACTS"/>    <uses-permission android:name="android.permission.WRITE_CONTACTS"/>

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