Android 2.0 API 获取通讯录中电话号码的例子

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：

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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：

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

转自：http://www.itivy.com/android/archive/2011/8/13/how-android-get-phone-number-from-contact-table.html