利用内容提供者来操作联系人数据库

添加权限

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

package cn.itcast.contacts.test;

import android.content.ContentUris;

import android.content.ContentValues; import android.database.Cursor; import android.net.Uri; import android.test.AndroidTestCase;

public class TestContacts extends AndroidTestCase {

       

        public void  readContacts() throws Exception{                 //1. 查看源代码                 // com.android.contacts/raw_contacts                                 Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");                 Cursor  cursor =        getContext().getContentResolver().query(uri, null, null, null, null);                 while (cursor.moveToNext()) {                                         String id = cursor.getString( cursor.getColumnIndex("_id"));                 String name =        cursor.getString( cursor.getColumnIndex("display_name"));                         //System.out.println(id);                         System.out.println("姓名"+ name);                         //System.out.println("--");                                                                                                 Uri dataUri = Uri.parse("content://com.android.contacts/data");                                                 Cursor datacursor = getContext().getContentResolver().query(dataUri, null, "raw_contact_id=?", new String[]{id}, null);                         while (datacursor.moveToNext()) {                         /*   System.out.println( datacursor.getString(datacursor.getColumnIndex("data1")));                                                       System.out.println(   datacursor.getString( datacursor.getColumnIndex("mimetype")));                            System.out.println("~~~~~~~~~~~~~");*/                                 if("vnd.android.cursor.item/phone_v2".equals(datacursor.getString( datacursor.getColumnIndex("mimetype")))){                                         System.out.println("电话"+datacursor.getString(datacursor.getColumnIndex("data1")));                                 }else if("vnd.android.cursor.item/email_v2".equals(datacursor.getString( datacursor.getColumnIndex("mimetype")))){                                         System.out.println("邮箱"+datacursor.getString(datacursor.getColumnIndex("data1")));                                 }                                                         }datacursor.close();                 }                 cursor.close();                         }                         public void insertContacts(){                 Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");                 ContentValues values = new ContentValues();                 values.put("display_name", "zhaoba");                 Uri inserturi = getContext().getContentResolver().insert(uri, values);                 //得到插入的数据 在数据库中的_id                 long id = ContentUris.parseId(inserturi);                                 Uri dataUri = Uri.parse("content://com.android.contacts/data");                 ContentValues phonevalues = new ContentValues();                 phonevalues.put("data1", "7777");                 phonevalues.put("raw_contact_id", id);                 phonevalues.put("mimetype", "vnd.android.cursor.item/phone_v2");                 getContext().getContentResolver().insert(dataUri, phonevalues);                                                 ContentValues emailvalues = new ContentValues();                 emailvalues.put("data1", );                 emailvalues.put("raw_contact_id", id);                 emailvalues.put("mimetype", "vnd.android.cursor.item/email_v2");                 getContext().getContentResolver().insert(dataUri, emailvalues);                                                 ContentValues namevValues = new ContentValues();                 namevValues.put("mimetype", "vnd.android.cursor.item/name");                 namevValues.put("raw_contact_id", id);                 namevValues.put("data1", "yunchao");                                 getContext().getContentResolver().insert(dataUri, namevValues);         } }