Introduction To Android Contacts

Learn to work with the Android contacts database. Basic knowledge of accessing SQLite in Android along with using Cursors is expected. See the Android SQLite and Cursor Article for more information. Google changed the contacts database moving from 1.x to 2.0 versions of Android. This tutorial will be broken into 3 sections. First covering accessing contacts in Android 2.0. The second page will deal with accessing the contacts in Android 1.6 and before. Third we'll glue it all together with a class that abstracts specific classes for each version and a set of classes to manage the data from the contact records.

Contacts 讀取程式碼：

1. package com.homer.phone;  
2. import java.util.ArrayList;  
3. import java.util.HashMap;  
4. import android.app.Activity;  
5. import android.database.Cursor;  
6. import android.os.Bundle;  
7. import android.provider.ContactsContract;  
8. import android.provider.ContactsContract.CommonDataKinds.Phone;  
9. import android.widget.ListView;  
10. import android.widget.SimpleAdapter;  
11. publicclass phoneRead extends Activity {  
12.     @Override
13.     publicvoid onCreate(Bundle savedInstanceState){  
14.         super.onCreate(savedInstanceState);  
15.         showListView();  
16.     }  
17.     privatevoid showListView(){  
18.         ListView listView = new
     ListView(this);  
19.         ArrayList<HashMap<String, String>> list = getPeopleInPhone2();  
20.         SimpleAdapter adapter = new SimpleAdapter(  
21.                                     this,   
22.                                     list,   
23.                                     android.R.layout.simple_list_item_2,   
24.                                     new String[] {"peopleName", "phoneNum"},   
25.                                     newint[]{android.R.id.text1, android.R.id.text2}  
26.                                 );  
27.         listView.setAdapter(adapter);  
28.         setContentView(listView);  
29.     }  
30.     private ArrayList<HashMap<String, String>> getPeopleInPhone2(){  
31.         ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>();  
32.         Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);     // 獲取手機聯絡人
33.         while (cursor.moveToNext()) {  
34.             HashMap<String, String> map = new HashMap<String, String>();  
35.             int indexPeopleName = cursor.getColumnIndex(Phone.DISPLAY_NAME);    // people name
36.             int indexPhoneNum = cursor.getColumnIndex(Phone.NUMBER);            // phone number
37.             String strPeopleName = cursor.getString(indexPeopleName);  
38.             String strPhoneNum = cursor.getString(indexPhoneNum);  
39.             map.put("peopleName", strPeopleName);  
40.             map.put("phoneNum", strPhoneNum);  
41.             list.add(map);  
42.         }  
43.         if(!cursor.isClosed()){  
44.             cursor.close();  
45.             cursor = null;  
46.         }  
47.         return list;  
48.     }  
49. }  

AndroidManifest.xml 許可權

記得在AndroidManifest.xml中加入android.permission.READ_CONTACTS這個permission

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

執行結果：

程式碼示例

參考推薦：