Chinaunix首页 | 论坛 | 博客
  • 博客访问: 844222
  • 博文数量: 90
  • 博客积分: 2084
  • 博客等级: 大尉
  • 技术积分: 1545
  • 用 户 组: 普通用户
  • 注册时间: 2011-05-17 21:20
文章分类

全部博文(90)

文章存档

2012年(68)

2011年(22)

分类:

2012-06-13 14:02:45

最近开始学习Android,主要看的是《Android应用开发揭秘》,在第3章的Example_03_02是一个读取通讯录联系人姓名和电话 的实例,但由于API 2.0中,每个联系人可以有多个电话(例如手机、住宅、公司、传真等),书中原有的实例在API 2.0的环境中会报错。

书中的Example_03_02代码:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.PhoneLookup;
import android.widget.TextView;
 
public class Activity01 extends Activity
{
    public void onCreate(Bundle savedInstanceState)
    {
        TextView tv = new TextView(this);
        String string = "";       
        super.onCreate(savedInstanceState);   
        //得到ContentResolver对象
        ContentResolver cr = getContentResolver(); 
        //取得电话本中开始一项的光标
        Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
        //向下移动一下光标
        while(cursor.moveToNext())
        {
            //取得联系人名字
            int nameFieldColumnIndex = cursor.getColumnIndex(PhoneLookup.DISPLAY_NAME);    
            String contact = cursor.getString(nameFieldColumnIndex);
            //取得电话号码
            int numberFieldColumnIndex = cursor.getColumnIndex(PhoneLookup.NUMBER);  //此行会报错,返回值=-1 
            String number = cursor.getString(numberFieldColumnIndex);
             
            string += (contact+":"+number+"\n");
        }
        cursor.close();
        //设置TextView显示的内容
        tv.setText(string);
        //显示到屏幕
        setContentView(tv);
    }
}

参考网上的资料,找到了正确读取联系人电话的方法:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
import android.app.Activity;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.PhoneLookup;
import android.database.Cursor;
import android.widget.TextView;
import android.content.ContentResolver;
 
public class Activity01 extends Activity
{
    public void onCreate(Bundle savedInstanceState)
    {
        TextView tv = new TextView(this);
        String string = "";
        super.onCreate(savedInstanceState);
         
        //得到ContentResolver对象
        ContentResolver cr = getContentResolver();
        //取得电话本中开始一项的光标
        Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
        //向下移动光标
        while(cursor.moveToNext())
        {
            //取得联系人名字
            int nameFieldColumnIndex = cursor.getColumnIndex(PhoneLookup.DISPLAY_NAME);
            String contact = cursor.getString(nameFieldColumnIndex);
            //取得电话号码
            String ContactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
            Cursor phone = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
            ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + ContactId, null, null);
             
            while(phone.moveToNext())
            {
                String PhoneNumber = phone.getString(phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                string += (contact + ":" + PhoneNumber + "\n");
            }
        }
        cursor.close();
         
        //设置TextView显示的内容
        tv.setText(string);
        //显示到屏幕
        setContentView(tv);
    }
}

最后记得在AndroidManifest.xml声明读取联系人的API:

1
阅读(1708) | 评论(0) | 转发(0) |
给主人留下些什么吧!~~