【发布时间】：2013-12-16 05:27:50
【问题描述】：
我目前正在开发一个打算根据用户语音输入呼叫用户的安卓应用程序。那是用户说出名字（即“约翰”）的时候。我想从我的联系人列表中检索所有联系人，其中包含该姓名和他们的联系号码（即“John Mavel - +94715295296，John Cena - +94715295286，Marine Jone - +94715294568，Josh John Samuwel - +94715297895。等”） .如果只有一个联系人使用该名称，我想直接拨打电话而不提供任何建议。到目前为止，我已经实现了一个代码来调用给定的硬编码名称。它需要语音输入。
package com.chamika_kasun.voicerecognitionapp;
import java.util.ArrayList;
import java.util.List;
//import java.util.List;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
//import android.content.pm.PackageManager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;
import android.speech.RecognizerIntent;
import android.content.pm.ResolveInfo;
public class MakeCall extends Activity implements OnClickListener {
public ListView mList;
public Button speakButton;
public static final int VOICE_RECOGNITION_REQUEST_CODE = 1234;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.make_call);
speakButton = (Button) findViewById(R.id.btn_speak);
speakButton.setOnClickListener(this);
voiceinputbuttons();
// Check to see if a recognition activity is present
// if running on AVD virtual device it will give this message. The mic
// required only works on an actual android device
// Disable button if no recognition service is present
PackageManager pm = getPackageManager();
List<ResolveInfo> activities = pm.queryIntentActivities(new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);
if (activities.size() == 0)
{
speakButton.setEnabled(false);
speakButton.setText("Recognizer not present");
}
}
public void voiceinputbuttons() {
speakButton = (Button) findViewById(R.id.btn_speak);
mList = (ListView) findViewById(R.id.list);
}
public 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);
}
public void onClick(View v) {
startVoiceRecognitionActivity();
}
@Override
public 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 matches = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
mList.setAdapter(new ArrayAdapter(this,android.R.layout.simple_list_item_1, matches));
//if (matches.contains("vidudaya")) {
String name = matches.toString();
String number = "";
Toast.makeText(this, "Name : "+name,Toast.LENGTH_SHORT).show();
ContentResolver cr = getContentResolver();
Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null,"DISPLAY_NAME = '" + name + "'", null, null);
if (cursor.moveToFirst()) {
String contactId =
cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
//
// Get all phone numbers.
//
Cursor phones = cr.query(Phone.CONTENT_URI, null,
Phone.CONTACT_ID + " = " + contactId, null, null);
while (phones.moveToNext()) {
number = phones.getString(phones.getColumnIndex(Phone.NUMBER));
// int type = phones.getInt(phones.getColumnIndex(Phone.TYPE));
// switch (type) {
// case Phone.TYPE_HOME:
// // do something with the Home number here...
// break;
// case Phone.TYPE_MOBILE:
// // do something with the Mobile number here...
// break;
// case Phone.TYPE_WORK:
// // do something with the Work number here...
// break;
// }
Toast.makeText(this, "My Mobile Number : "+number,Toast.LENGTH_SHORT).show();
}
phones.close();
}
cursor.close();
String url = "tel:"+number;
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse(url));
startActivity(intent);
//}
super.onActivityResult(requestCode, resultCode, data);
}
}
}
【问题讨论】：