package com.itheima.backupsms;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import org.xmlpull.v1.XmlSerializer;

import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.FileObserver;
import android.app.Activity;
import android.database.Cursor;
import android.util.Xml;
import android.view.Menu;
import android.view.View;

public class MainActivity extends Activity {

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

	/**
	 * 点击按钮备份短信
	 * 
	 * @param v
	 */
	public void backup(View v) {

		try {
			// 1 初始化xml 序列化器
			XmlSerializer serializer = Xml.newSerializer();
			// 2初始化xml序列化器的 参数
			File file = new File(Environment.getExternalStorageDirectory()
					.getPath(), "smsbackup.xml");
			FileOutputStream fos = new FileOutputStream(file);
			serializer.setOutput(fos, "utf-8");

			// 3 开始写 xml 头
			serializer.startDocument("utf-8", true);

			// 开始写 xml 根节点 smss
			serializer.startTag(null, "smss");
			// 1 把我们关系的短信数据库里的内容 给 获取出来 我们要做的操作 就是通过内容解析者 把数据给查询出来
			Uri uri = Uri.parse("content://sms");

			Cursor cursor = getContentResolver().query(uri,
					new String[] { "address", "date", "body" }, null, null,
					null);
			while (cursor.moveToNext()) {
				// 写sms 节点
				serializer.startTag(null, "sms");
				String address = cursor.getString(0);
				String date = cursor.getString(1);
				String body = cursor.getString(2);

				//开始写 address 节点 
				serializer.startTag(null, "address");
				serializer.text(address);
				serializer.endTag(null, "address");
				
				//开始写 date 节点 
				serializer.startTag(null, "date");
				serializer.text(date);
				serializer.endTag(null, "date");
				
				
				//开始写 body 节点 
				serializer.startTag(null, "body");
				serializer.text(body);
				serializer.endTag(null, "body");
				
				serializer.endTag(null, "sms");
			}

			// 开始写 address date body

			serializer.endTag(null, "smss");

			// 文档结束
			serializer.endDocument();

		} catch (Exception e) {
			e.printStackTrace();
		}

	}

}

利用内容解析者插入短信

//1 先拿到 内容解析器 
		Uri uri = Uri.parse("content://sms");
		ContentValues values = new ContentValues();
		values.put("address", "110");
		values.put("date", System.currentTimeMillis());
		values.put("body", "您的事犯了 请您马上来一趟");
		getContentResolver().insert(uri, values);

利用内容解析者获取联系人数据

package com.itheima.getcontactinfo.utils;

import java.util.ArrayList;
import java.util.List;

import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;

import com.itheima.getcontactinfo.domain.ContactInfo;

public class ContactUtils {

	public static List<ContactInfo> getContactInfos(Context context) {

		List<ContactInfo> contactLists = new ArrayList<ContactInfo>();
		// 1 首先 我要查询raw_contacts表 获取到 contact_id列
		// （1）我如何查询 ？用 内容解析者 path
		Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
		Uri datauri = Uri.parse("content://com.android.contacts/data");

		ContentResolver resolver = context.getContentResolver();
		Cursor cursor = resolver.query(uri, new String[] { "contact_id" },
				null, null, null);
		while (cursor.moveToNext()) {
			// 获取到contact_id 的值
			String contact_id = cursor.getString(0);
			System.out.println("contact_id--" + contact_id);

			// 有个小细节注意一下 我要判断 contact_id 是否为空
			if (contact_id != null) {

				ContactInfo info = new ContactInfo();
				info.setId(contact_id);

				// 2去data表 根据 contact_id 去获取 mimetyple_id列 data1 列

				Cursor dataCursor = resolver.query(datauri, new String[] {
						"mimetype", "data1" }, "raw_contact_id=?",
						new String[] { contact_id }, null);
				while (dataCursor.moveToNext()) {
					String mimetype = dataCursor.getString(0); // 获取到mimeytype
					String data1 = dataCursor.getString(1);

					// 3 然后根据 mimetype类型 来区分数据类型
					if ("vnd.android.cursor.item/email_v2".equals(mimetype)) {
						info.setEmail(data1);

					} else if ("vnd.android.cursor.item/name".equals(mimetype)) {

						info.setName(data1);

					} else if ("vnd.android.cursor.item/phone_v2"
							.equals(mimetype)) {
						System.out.println("data---电话号码-" + data1);
						info.setPhone(data1);
					}

				}
				dataCursor.close();
				contactLists.add(info); // 把info信息存到集合中

			}

		}
		cursor.close();

		return contactLists;

	}

}

package com.itheima.getcontactinfo.domain;

public class ContactInfo {

	private String id;
	private String name;
	private String phone;
	private String email;
	
	
	
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPhone() {
		return phone;
	}
	public void setPhone(String phone) {
		this.phone = phone;
	}
	public String getEmail() {
		return email;
	}
	public void setEmail(String email) {
		this.email = email;
	}
	@Override
	public String toString() {
		return "ContactInfo [id=" + id + ", name=" + name + ", phone=" + phone
				+ ", email=" + email + "]";
	}

	
	
	
	
}

利用内容解析者插入联系人

package com.itheima.insert.contact;

import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.ContentValues;
import android.database.Cursor;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;

public class MainActivity extends Activity {

	private EditText et_name;
	private EditText et_phone;
	private EditText et_email;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		//1找到我们关心的控件
		
		et_name = (EditText) findViewById(R.id.et_name);
		et_phone = (EditText) findViewById(R.id.et_phone);
		et_email = (EditText) findViewById(R.id.et_email);
		
		
		
		
	}
	
	/**
	 * 保存联系人的信息
	 * @param v
	 */
	public void click(View v){
		
		//1 要先拿到  edittext的值 
		String name = et_name.getText().toString().trim();
		String phone = et_phone.getText().toString().trim();
		String email = et_email.getText().toString().trim();
		
		//2 往 raw_contacts里插入一条数据   拿到内容解析者 
		Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
		Uri datauri = Uri.parse("content://com.android.contacts/data");
		
		ContentValues values = new ContentValues();
		// 插入数据之前  我要先查询 一下  raw_contacts 表一共有多少行的数据 
		Cursor cursor = getContentResolver().query(uri, null, null, null, null);
		int count = cursor.getCount();  //获取到一共有多少行 
	    int contact_id =  count + 1;  
		
		values.put("contact_id", contact_id);
		getContentResolver().insert(uri, values);
		
		// 3 往data 表插入数据 
		
		ContentValues nameValues = new ContentValues();
		nameValues.put("data1", name);
		nameValues.put("mimetype", "vnd.android.cursor.item/name");
		nameValues.put("raw_contact_id", contact_id);
		getContentResolver().insert(datauri, nameValues);

		ContentValues phoneValues = new ContentValues();
		phoneValues.put("data1", phone);
		phoneValues.put("mimetype", "vnd.android.cursor.item/phone_v2");
		phoneValues.put("raw_contact_id", contact_id);
		getContentResolver().insert(datauri, phoneValues);
		
		ContentValues emailValues = new ContentValues();
		emailValues.put("data1", email);
		emailValues.put("mimetype", "vnd.android.cursor.item/email_v2");
		emailValues.put("raw_contact_id", contact_id);
		getContentResolver().insert(datauri, emailValues);
		
		
		
		
		
	}

	
}

利用监听和内容解析者监听短信

package com.itheima.smslistener;

import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.app.Activity;
import android.database.ContentObserver;
import android.database.Cursor;
import android.view.Menu;

public class MainActivity extends Activity {

	private Uri	uri;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		
		//1注册一个内容观察者 
	   	uri = Uri.parse("content://sms");
		getContentResolver().registerContentObserver(uri, true, new MyObserver(new Handler()));
		
	}

	
	
	private  class MyObserver  extends ContentObserver{

		public MyObserver(Handler handler) {
			super(handler);
		}
		@Override
		public void onChange(boolean selfChange) {
			
			//当短信的数据库发生了变化    我就去取出所有短信的内容 
			
			Cursor cursor = getContentResolver().query(uri, new String[]{"address","body","date"}, null, null, null);
			while(cursor.moveToNext()){
				
				String address = cursor.getString(0);
				String body = cursor.getString(1);
				String date = cursor.getString(2);
				
				System.out.println("address---"+address+"--body:"+body);
				
			}
			
			super.onChange(selfChange);
		}
		
		
	}
	
}