Android(安卓)获得联系人并排序

方式一：通过观察导出的联系人数据库的相关字段，根据字段去查询（在有些手机上会查询不全，并且该类没有实现排序）

import android.content.Context;import android.database.Cursor;import android.net.Uri;import com.wjustudio.phoneManager.Common.AppConstants;import com.wjustudio.phoneManager.javaBean.Contact;import java.util.ArrayList;/** * 作者：songwenju on 2016/4/2 22:00 * 邮箱：[email protected] */public class ContactUtil {    /**     * 获得系统联系人     *     * @param context     * @return     */    public static ArrayList getContact(Context context) {        ArrayList contacts = new ArrayList<>();        Contact contact;        String[] projection = {"data1", "mimetype"};        Cursor rawCursor = context.getContentResolver().query(Uri.parse(AppConstants.RAW_CONTACTS),                new String[]{"contact_id"}, null, null, null);        if (rawCursor != null && rawCursor.getCount() > 0) {            LogUtil.i("ContactUtil", "the number of contact:" + rawCursor.getCount());            while (rawCursor.moveToNext()) {                String contact_id = rawCursor.getString(rawCursor.getColumnIndex("contact_id"));                LogUtil.i("contactUtil","contact_id:"+contact_id);                if (contact_id != null) {                    Cursor dataCursor = context.getContentResolver().query(                            Uri.parse(AppConstants.DATA_CONTACTS), projection,                            "raw_contact_id = ?", new String[]{contact_id}, null);                    if (dataCursor != null && dataCursor.getCount() > 0) {                        contact = new Contact();                        while (dataCursor.moveToNext()) {                            String data1 = dataCursor.getString(dataCursor.getColumnIndex("data1"));                            data1 = data1.trim().replaceAll("-","").replaceAll(" ","");                            String mimetype = dataCursor.getString(dataCursor.getColumnIndex("mimetype"));                            switch (mimetype) {                                case "vnd.android.cursor.item/name":                                    contact.contact_name = data1;                                    if (ChineseUtil.isChinese(data1.charAt(0))){                                        contact.pinYin = PinYinUtil.toPinyin(data1);                                    }else {                                        contact.pinYin = data1;                                    }                                    break;                                case "vnd.android.cursor.item/email_v2":                                    contact.email = data1;                                    break;                                case "vnd.android.cursor.item/phone_v2":                                    contact.contact_phoneNum = data1;                                    break;                            }                        }                        contacts.add(contact);                    }                }            }        }        LogUtil.e("contactUtil","contactNum:"+contacts.size());        return contacts;    }}

对应的bean

package com.wjustudio.contactdemo;import java.util.ArrayList;import java.util.List;/** * 作者：songwenju on 2016/4/2 22:01 * 邮箱：[email protected] */public class Contact {    public String name;    public String pinYin;    public List telephoneNumber = new ArrayList<>();    public String email;    @Override    public String toString() {        return "Contact{" +                "name='" + name + '\'' +                ", pinYin='" + pinYin + '\'' +                ", telephoneNumber=" + telephoneNumber +                ", email='" + email + '\'' +                '}';    }}

对应的AppConstants中两个字段

/** * App所用的常量 * 作者：songwenju on 2016/1/31 11:39 * 邮箱：[email protected] */public class AppConstants {    public static final String RAW_CONTACTS = "content://com.android.contacts/raw_contacts";    public static final String DATA_CONTACTS = "content://com.android.contacts/data";}

方式二：通过系统提供的字段来获取数据，并实现了按拼音排序

import android.content.Context;import android.database.Cursor;import android.net.Uri;import android.provider.ContactsContract;import android.text.TextUtils;import com.wjustudio.phoneManager.javaBean.Contact;import net.sourceforge.pinyin4j.PinyinHelper;import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;import net.sourceforge.pinyin4j.format.HanyuPinyinVCharType;import java.util.ArrayList;public class ContactUtils {    public static ArrayList getContact(Context context) {        ArrayList listMembers = new ArrayList<>();        Cursor cursor = null;        try {            Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;            // 这里是获取联系人表的电话里的信息  包括：名字，联系人id,电话号码；            // 然后在根据"sort-key"排序            cursor = context.getContentResolver().query(                    uri,                    new String[] { "display_name", "contact_id", "data1" },                    null, null, "sort_key");            if (cursor != null && cursor.moveToFirst()) {                LogUtil.e("contactUtil", "ContactCount:" + cursor.getCount());                while (cursor.moveToNext()){                    Contact contact = new Contact();                    String contact_phoneNum = cursor.getString(cursor                            .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));                    String name = cursor.getString(cursor.getColumnIndex(                            ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));                    int contact_id = cursor.getInt(cursor                            .getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));                    contact.contact_name = name;                    contact.contact_phoneNum = contact_phoneNum.replaceAll("[^0-9]", "");                    contact.contact_id = contact_id;                    contact.pinYin = getPingYin(name);                    LogUtil.e("contactUtils", "contact:" + contact.toString());                    if (name != null)                        listMembers.add(contact);                }            }        } catch (Exception e) {            e.printStackTrace();        } finally {            if (cursor != null){                cursor.close();            }        }        return listMembers;    }    /**     * 将字符串中的中文转化为拼音,其他字符不变     *     * @param inputString 输入的中文汉字     * @return 获得的拼音     */    public static String getPingYin(String inputString) {        if (TextUtils.isEmpty(inputString)) {            return "";        }        HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();        format.setCaseType(HanyuPinyinCaseType.LOWERCASE);        format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);        format.setVCharType(HanyuPinyinVCharType.WITH_V);        char[] input = inputString.trim().toCharArray();        String output = "";        try {            for (char anInput : input) {                if (Character.toString(anInput).matches(                        "[\\u4E00-\\u9FA5]+")) {                    String[] temp = PinyinHelper.toHanyuPinyinStringArray(                            anInput, format);                    if (temp == null || TextUtils.isEmpty(temp[0])) {                        continue;                    }                    output += temp[0].replaceFirst(temp[0].substring(0, 1),                            temp[0].substring(0, 1).toUpperCase());                } else                    output += Character.toString(anInput);            }        } catch (Exception e) {            e.printStackTrace();        }        return output;    }}

对应的bean

/** * author：songwenju on 16-4-7 11 : 07 * Email: [email protected] */public class Contact {    public String contact_name;    public String contact_phoneNum;    public int contact_id;    public String email;    //public List telephoneNumber = new ArrayList<>();    public String pinYin;    @Override    public String toString() {        return "Contact{" +                "contact_name='" + contact_name + '\'' +                ", contact_phoneNum='" + contact_phoneNum + '\'' +                ", contact_id=" + contact_id +                ", email='" + email + '\'' +                ", pinYin='" + pinYin + '\'' +                '}';    }}

联系人数据库里面联系人和电话号码是分别存在两个表里面的，因为存在一个联系人拥有几个号码的情况，所以android为联系人和手机号码分别单独创建了相应的视图。

联系人信息的视图里面只保存与联系人相关的资料，例如姓名，是否有手机号码等。

而手机号码资料则是每一个电话号码为一条记录，如果有一个联系人有3个号码，则里面会出现3个该联系人的记录，号码分别为他的三个号码。

如果是需要读取联系人信息，传入的URI为：ContactsContract.Contacts.CONTENT_URI

如果是需要读取手机号码信息传入的URI为：ContactsContract.CommonDataKinds.Phone.CONTENT_URI

下篇文章将写一个完整的小项目去实现读联系人，并且以自定义View的形式展示出来。

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