Android 获取系统的联系人

本文主要介绍android中怎样获取系统的联系人数据

首先打开模拟器

点击联系人图标按钮

说明系统联系人数据库是空的，打开File explorer，找到data/data下面的文件夹：

将contacts2.db文件导出，添加到sqlite中的时候报错：

点击“ok”忽略之

表结构相当的复杂，首先搞清楚其中的三张表

* data表 保存联系人的数据

* raw_contacts表 保存联系人的id contact_id

* mimetypes表 保存联系人数据的类型

接下来通过模拟器添加联系人

通过sqlite刷新contacts2.db，忽略提示错误

获取联系人步骤

1. 查询raw_contacts表，把联系人的id取出来

2. 根据联系人的id，查询data表，把这个id的数据取出来

3. 根据mimetype区分数据的类型

接下来通过代码实现

package com.wuyudong.getcontacts;

import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
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);
    }

    /**
     * 获取全部的联系人
     *
     * @param view
     */
    public void click(View view) {
        ContentResolver resolver = getContentResolver();
        // 1.查询raw_contacts表，把联系人的id取出来
        Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
        Uri datauri = Uri.parse("content://com.android.contacts/data");
        Cursor cursor = resolver.query(uri, new String[] { "contact_id" },
                null, null, null);
        while (cursor.moveToNext()) {
            String id = cursor.getString(0);
            System.out.println("联系人id: " + id);
            // 2.根据联系人的id，查询data表，把这个id的数据取出来
            // 系统api查询data表的时候不是真正的查询的data表，而是查询data表的视图
            Cursor dataCursor = resolver.query(datauri, new String[] { "data1", "mimetype" },
                            "raw_contact_id=?", new String[] { id }, null);
            while (dataCursor.moveToNext()) {
                String data1 = dataCursor.getString(0);
                System.out.println("data1=" + data1);
                String mimetype = dataCursor.getString(1);
                System.out.println("mimetype=" + mimetype);
            }
            dataCursor.close();
        }
        cursor.close();

    }

}

添加权限：android.permission.READ_CONTACTS

运行后打印相关的结果：

06-18 10:59:41.556: I/System.out(2127): 联系人id: 1
06-18 10:59:41.636: I/System.out(2127): data1=110
06-18 10:59:41.636: I/System.out(2127): mimetype=vnd.android.cursor.item/phone_v2
06-18 10:59:41.646: I/System.out(2127): data1=wuyudong@wuyudong.com
06-18 10:59:41.646: I/System.out(2127): mimetype=vnd.android.cursor.item/email_v2
06-18 10:59:41.646: I/System.out(2127): data1=Wuyudong
06-18 10:59:41.646: I/System.out(2127): mimetype=vnd.android.cursor.item/name

通过上面的打印信息，可以修改程序

package com.wuyudong.getcontacts;

import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
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);
    }

    /**
     * 获取全部的联系人
     *
     * @param view
     */
    public void click(View view) {
        ContentResolver resolver = getContentResolver();
        // 1.查询raw_contacts表，把联系人的id取出来
        Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
        Uri datauri = Uri.parse("content://com.android.contacts/data");
        Cursor cursor = resolver.query(uri, new String[] { "contact_id" },
                null, null, null);
        while (cursor.moveToNext()) {
            String id = cursor.getString(0);
            System.out.println("联系人id: " + id);
            // 2.根据联系人的id，查询data表，把这个id的数据取出来
            // 系统api查询data表的时候不是真正的查询的data表，而是查询data表的视图
            Cursor dataCursor = resolver
                    .query(datauri, new String[] { "data1", "mimetype" },
                            "raw_contact_id=?", new String[] { id }, null);
            while (dataCursor.moveToNext()) {
                String data1 = dataCursor.getString(0);

                String mimetype = dataCursor.getString(1);
                if ("vnd.android.cursor.item/name".equals(mimetype)) {
                    System.out.println("姓名=" + data1);
                } else if ("vnd.android.cursor.item/email_v2".equals(mimetype)) {
                    System.out.println("邮箱=" + data1);
                } else if ("vnd.android.cursor.item/phone_v2".equals(data1)) {
                    System.out.println("电话=" + data1);
                } else if ("vnd.android.cursor.item/im".equals(mimetype)) {
                    System.out.println("QQ=" + data1);
                }
            }
            dataCursor.close();
        }
        cursor.close();

    }

}

运行后打印相关的结果：

06-18 11:17:57.312: I/System.out(2380): 联系人id: 1
06-18 11:17:57.452: I/System.out(2380): 邮箱=wuyudong@wuyudong.com
06-18 11:17:57.452: I/System.out(2380): 姓名=Wuyudong
06-18 11:17:57.452: I/System.out(2380): QQ=11111111
06-18 11:17:57.482: I/System.out(2380): 联系人id: 2
06-18 11:17:57.572: I/System.out(2380): QQ=32423423422
06-18 11:17:57.572: I/System.out(2380): 邮箱=wu@wuyudong.com
06-18 11:17:57.572: I/System.out(2380): 姓名=Zhangsan

最后将这些操作封装成api，便于以后使用

新建ContactInfoParser.java文件

package com.wuyudong.getcontacts.service;

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

import com.wuyudong.getcontacts.domain.ContactInfo;

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

public class ContactInfoParser {
    /**
     * 获取系统全部联系人的api方法
     *
     * @param context
     * @return
     */
    public static List<ContactInfo> findAll(Context context) {
        ContentResolver resolver = context.getContentResolver();
        // 1.查询raw_contacts表，把联系人的id取出来
        Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
        Uri datauri = Uri.parse("content://com.android.contacts/data");
        List<ContactInfo> infos = new ArrayList<ContactInfo>();
        Cursor cursor = resolver.query(uri, new String[] { "contact_id" },
                null, null, null);
        while (cursor.moveToNext()) {
            String id = cursor.getString(0);
            if (id != null) {
                System.out.println("联系人id: " + id);
                ContactInfo info = new ContactInfo();
                info.setId(id);
                // 2.根据联系人的id，查询data表，把这个id的数据取出来
                // 系统api查询data表的时候不是真正的查询的data表，而是查询data表的视图
                Cursor dataCursor = resolver.query(datauri, new String[] {
                        "data1", "mimetype" }, "raw_contact_id=?",
                        new String[] { id }, null);
                while (dataCursor.moveToNext()) {
                    String data1 = dataCursor.getString(0);
                    String mimetype = dataCursor.getString(1);
                    if ("vnd.android.cursor.item/name".equals(mimetype)) {
                        System.out.println("姓名=" + data1);
                        info.setName(data1);

                    } else if ("vnd.android.cursor.item/email_v2"
                            .equals(mimetype)) {
                        System.out.println("邮箱=" + data1);
                        info.setEmail(data1);
                    } else if ("vnd.android.cursor.item/phone_v2".equals(data1)) {
                        System.out.println("电话=" + data1);
                        info.setPhone(data1);
                    } else if ("vnd.android.cursor.item/im".equals(mimetype)) {
                        System.out.println("QQ=" + data1);
                        info.setQq(data1);
                    }

                }
                infos.add(info);
                System.out.println("-------");
                dataCursor.close();
            }
        }
        cursor.close();
        return infos;

    }

}

新建ContactInfo.java

package com.wuyudong.getcontacts.domain;

public class ContactInfo {

    private String name;
    private String id;
    private String phone;
    private String email;
    private String qq;

    @Override
    public String toString() {
        return "ContactInfo [name=" + name + ", id=" + id + ", phone=" + phone
                + ", email=" + email + ", qq=" + qq + "]";
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    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;
    }
    public String getQq() {
        return qq;
    }
    public void setQq(String qq) {
        this.qq = qq;
    }

}

最后调用相关api

package com.wuyudong.getcontacts;

import java.util.List;

import com.wuyudong.getcontacts.domain.ContactInfo;
import com.wuyudong.getcontacts.service.ContactInfoParser;

import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
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);
    }

    /**
     * 获取全部的联系人
     *
     * @param view
     */
    public void click(View view) {
        List<ContactInfo> infos = ContactInfoParser.findAll(this);
        for (ContactInfo info : infos) {
            System.out.println(info.toString());
        }

    }

}