获取手机联系人的信息

// TODO 这种方法直接指定uri在真机中是获取不到联系人信息的
                // [1]获取到内容解析者
//                ContentResolver contentResolver = getContentResolver();
                /*Cursor cursor = contentResolver.query(Uri
                        .parse("content://com.android.contacts/raw_contacts"),
                        new String[] { "contact_id" }, null, null, null);
                while (cursor.moveToNext()) {// 有内容,进行获取
                    //[2]获取到contact_id
                    String contact_id = cursor.getString(0);
                    //[3]根据获取到的contact_id进行查询data表中的数据,data1,mimetype_id字段数据
                    //##虽然data表中的字段是mimetype_id,但是要使用mimetype才可以获取到数据,对应的是mimetypes表的字段
                    Cursor cursor2 = contentResolver.query(
                            Uri.parse("content://com.android.contacts/data"),
                            new String[] { "data1", "mimetype" },
                            "raw_contact_id=?", new String[] { contact_id }, null);
                    
                    //创建集合HashMap,用来存储联系人的姓名和号码,对ListView进行填充数据
                    HashMap<String, String> contactsMap=new HashMap<String, String>();
                    while (cursor2.moveToNext()) {
                        //[4]获取到data1,mimetype_id
                        String data1 = cursor2.getString(0);
                        String type = cursor2.getString(1);
                        if (type.equals("vnd.android.cursor.item/phone_v2")) {//data1是电话号码
                            //将数据进行保存
                            if (!TextUtils.isEmpty(data1)) {
                                contactsMap.put("phone", data1);
                            }else{
                                contactsMap.put("phone", "null");//要是为空的话
                            }
                        }else if(type.equals("vnd.android.cursor.item/name")){//data1联系人名字
                            if (!TextUtils.isEmpty(data1)) {
                                contactsMap.put("name", data1);
                            }else{
                                contactsMap.put("name", "null");//要是为空的话
                            }
                        }
                    }
                    //循环一次添加一组联系人的数据
                    contactsList.add(contactsMap);
                }*/

　　　　　　　　　 ContentResolver contentResolver = getContentResolver();
                Cursor cursor = contentResolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                        new String[]{
                            ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
                            ContactsContract.CommonDataKinds.Phone.DATA1
                        }, 
                        null, null, null);
                while (cursor.moveToNext()) {
                    HashMap<String, String> hashMap=new HashMap<String, String>();
                    hashMap.put("name", cursor.getString(0));
                    hashMap.put("phone", cursor.getString(1));
//                    Log.i("phone", cursor.getString(0));
//                    Log.i("phone", cursor.getString(1));
                    contactsList.add(hashMap);
                }

package com.itlearn.contacts;

import java.util.ArrayList;
import java.util.HashMap;

import android.content.ContentResolver;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.provider.ContactsContract;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;


public class MainActivity extends ActionBarActivity {
    private ListView lv_contacts;
    //存储联系人信息(存储在Map集合中(姓名和号码))的单列集合
    ArrayList<HashMap<String,String>> mContactsArrayList=new ArrayList<HashMap<String,String>>();
    
    public Handler mHandler=new Handler(){

        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            lv_contacts.setAdapter(new ListContactsAdapter());
        }
        
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        lv_contacts = (ListView) findViewById(R.id.lv_contacts);
        initUI();
    }


    private void initUI() {
        new Thread(new Runnable() {
            
            @Override
            public void run() {
                ContentResolver contentResolver = getContentResolver();
                Cursor cursor = contentResolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                        new String[]{
                            ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
                            ContactsContract.CommonDataKinds.Phone.DATA1
                        }, 
                        null, null, null);
                while (cursor.moveToNext()) {
                    HashMap<String, String> hashMap=new HashMap<String, String>();
                    hashMap.put("name", cursor.getString(0));
                    hashMap.put("phonenumber", cursor.getString(1));
//                    Log.i("phone", cursor.getString(0));
//                    Log.i("phone", cursor.getString(1));
                    mContactsArrayList.add(hashMap);
                }
                //发送消息进行UI更新
                mHandler.sendEmptyMessage(0);
            }
        }).start();
    }

    private class ListContactsAdapter extends BaseAdapter{

        @Override
        public int getCount() {
            return mContactsArrayList.size();
        }

        @Override
        public HashMap<String,String> getItem(int position) {
            return mContactsArrayList.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View view = View.inflate(getApplicationContext(), R.layout.listview_contact_item, null);
            //获取到布局中需要显示name和phonenumber的id
            TextView tv_name=(TextView) view.findViewById(R.id.tv_name);
            TextView tv_phonenumber=(TextView) view.findViewById(R.id.tv_phonenumber);
            
            tv_name.setText(getItem(position).get("name"));
            tv_phonenumber.setText(getItem(position).get("phonenumber").replace(" ", "").replace("-", "").trim());
            return view;
        }
        
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.itlearn.contacts.MainActivity" >
    
    <TextView 
        android:id="@+id/tv_title"
        android:text="联系人列表"
        android:textSize="20sp"
        android:textColor="#FFF"
        android:padding="15sp"
        android:background="#222222"
        android:gravity="center"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>
    <!-- 联系人列表显示 -->
    <ListView 
        android:id="@+id/lv_contacts"
        android:layout_below="@+id/tv_title"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></ListView>

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="10dp"
    android:orientation="vertical" >
    
    <TextView 
        android:id="@+id/tv_name"
        android:textColor="#23350B"
        android:textSize="20dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
    <TextView 
        android:id="@+id/tv_phonenumber"
        android:paddingTop="3dp"
        android:paddingBottom="1dp"
        android:textColor="#C3010A"
        android:textSize="16dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
</LinearLayout>