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package com.abc.contentproviderdemo1;

import android.content.ContentProvider;
import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;

public class MyContentProvider extends ContentProvider {

	@Override // 在ContentProvider创建后被调用
	public boolean onCreate() {
		// TODO Auto-generated method stub
		return false;
	}

	@Override // 根据uri查询出selection指定的条件所匹配的全部记录，并且可以指定查询哪些列 以什么方式（order）排序
	public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override // 返回当前uri的MIME类型，如果该URI对应的数据可能包括多条记录
	// 如果该URI对应的数据只有一条记录 该MIME类型字符串 就是以vnd.android.cursor.item/开头
	public String getType(Uri uri) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override // 根据uri插入Values对应的数据
	public Uri insert(Uri uri, ContentValues values) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override // 根据Uri删除selection指定的条件所匹配的全部记录
	public int delete(Uri uri, String selection, String[] selectionArgs) {
		// TODO Auto-generated method stub
		return 0;
	}

	@Override // 根据uri修改selection指定的条件所匹配的全部记录
	public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
		// TODO Auto-generated method stub
		return 0;
	}

}

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package com.abc.contentproviderdemo1;

import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract.CommonDataKinds.Email;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.Contacts;
import android.util.Log;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		ContentResolver cr = getContentResolver();
		Cursor c = cr.query(Contacts.CONTENT_URI, new String[] { Contacts._ID, Contacts.DISPLAY_NAME }, null, null,
				null);
		if (c != null) {
			while (c.moveToNext()) {
				int id = c.getInt(c.getColumnIndex("_id"));
				Log.i("info", "_id" + id);
				Log.i("info", "name:" + c.getString(c.getColumnIndex("display_name")));
				Cursor c1 = cr.query(Phone.CONTENT_URI, new String[] { Phone.NUMBER, Phone.TYPE },
						Phone.CONTACT_ID + "=" + id, null, null);
				// 根据联系人ID查询出联系人的电话号码
				if (c1 != null) {
					while (c1.moveToNext()) {
						int type = c1.getInt(c1.getColumnIndex(Phone.TYPE));
						if (type == Phone.TYPE_HOME) {
							Log.i("info", "家庭电话：" + c1.getString(c1.getColumnIndex(Phone.NUMBER)));
						} else if (type == Phone.TYPE_MOBILE) {
							Log.i("info", "手机" + c1.getString(c1.getColumnIndex(Phone.NUMBER)));
						}
					}
					c1.close();
				}
				// 根据联系人的ID去查询出联系人的邮箱地址
				Cursor c2 = cr.query(Email.CONTENT_URI, new String[] { Email.DATA, Email.TYPE },
						Email.CONTACT_ID + "=" + id, null, null);

				if (c2 != null) {
					while (c2.moveToNext()) {
						int type = c2.getInt(c2.getColumnIndex(Email.TYPE));
						if (type == Email.TYPE_WORK) {
							Log.i("info", "工作邮箱：" + c2.getString(c2.getColumnIndex(Email.DATA)));
						}
					}
					c2.close();
				}
			}
			c.close();
		}
	}

}

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

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package com.abc.contentproviderdemo2;

import android.app.Activity;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.CommonDataKinds.StructuredName;
import android.provider.ContactsContract.Data;
import android.provider.ContactsContract.RawContacts;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		ContentResolver cr = getContentResolver();
		// 向联系人中插入一行数据
		ContentValues values = new ContentValues();
		Uri uri = cr.insert(RawContacts.CONTENT_URI, values);
		Long raw_contact_id = ContentUris.parseId(uri);
		values.clear();
		values.put(StructuredName.RAW_CONTACT_ID, raw_contact_id);
		values.put(StructuredName.DISPLAY_NAME, "胡博靖");
		values.put(StructuredName.MIMETYPE, StructuredName.CONTENT_ITEM_TYPE);
		uri = cr.insert(Data.CONTENT_URI, values);
		// 插入电话信息
		values.clear();
		values.put(Phone.RAW_CONTACT_ID, raw_contact_id);
		values.put(Phone.NUMBER, "12345678910");
		values.put(Phone.MIMETYPE, Phone.CONTENT_ITEM_TYPE);
		uri = cr.insert(Data.CONTENT_URI, values);
	}

}

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