ContentResolver(内容访问者)访问通讯录

来源：互联网发布：学英语软件编辑：程序博客网时间：2024/06/04 06:44

访问通讯录可以分为两种方式，第一种是直接调用系统通讯录的界面直接访问，第二种是自己写一个界面，从系统通讯录里面拿到数据，再绑定在自己写的界面。

今天我们用第二种方法来实现访问通讯录

1，访问通讯录首先要写访问通讯录的权限

<!--访问通讯录的权限-->    <uses-permission android:name="android.permission.READ_CONTACTS"></uses-permission>

2，拿到内容访问者

 //得到内容访问者        ContentResolver cr= getContentResolver();

3，用内容访问者去点 query 方法，返回类型是Cursor

Uri uri=Uri.parse("content://com.android.contacts/raw_contacts");Cursor cursor=cr.query(uri,null,null,null,null);

4，得到ID和名字

 while (cursor.moveToNext()){            int id=cursor.getInt(cursor.getColumnIndex("_id"));            String name = cursor.getString(cursor.getColumnIndex("display_name"));//            Log.i("text",""+id+"   "+name);}

5，根据联系人的ID获取联系人相对应的数据（名字+phone）

Uri uriData=Uri.parse("content://com.android.contacts/raw_contacts/"+id+"/data");            Cursor cursor1=cr.query(uriData,null,null,null,null);            while(cursor1.moveToNext()){                //号码                String data1=cursor1.getString(cursor1.getColumnIndex("data1"));                //int type=cursorData.getInt(cursorData.getColumnIndex("mimetype_id"));                String type=cursor1.getString(cursor1.getColumnIndex("mimetype"));                if("vnd.android.cursor.item/phone_v2".equals(type)){                    Log.i("text","   "+data1+"    "+ name);                }            }

然后自己在写一个ListView把数据放进去就OK了

package com.zking.hgz_android_25_contentproviter_02;import android.content.ContentResolver;import android.database.Cursor;import android.net.Uri;import android.support.v4.widget.SimpleCursorAdapter;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.view.ViewGroup;import android.widget.Adapter;import android.widget.BaseAdapter;import android.widget.ListView;public class Contacts extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_contacts);        ListView lv_contacts= (ListView) findViewById(R.id.lv_contacts);        //得到内容访问者        ContentResolver cr= getContentResolver();        Uri uri=Uri.parse("content://com.android.contacts/raw_contacts");        Cursor cursor=cr.query(uri,null,null,null,null);        while (cursor.moveToNext()){            int id=cursor.getInt(cursor.getColumnIndex("_id"));            String name = cursor.getString(cursor.getColumnIndex("display_name"));//            Log.i("text",""+id+"   "+name);            //根据联系人的ID获取联系人相对应的数据（名字+phone）            Uri uriData=Uri.parse("content://com.android.contacts/raw_contacts/"+id+"/data");            Cursor cursor1=cr.query(uriData,null,null,null,null);            while(cursor1.moveToNext()){                //号码                String data1=cursor1.getString(cursor1.getColumnIndex("data1"));                //int type=cursorData.getInt(cursorData.getColumnIndex("mimetype_id"));                String type=cursor1.getString(cursor1.getColumnIndex("mimetype"));                if("vnd.android.cursor.item/phone_v2".equals(type)){                    Log.i("text","   "+data1+"    "+ name);                }            }//            SimpleCursorAdapter adapter = new SimpleCursorAdapter(Contacts.this, R.layout.listview_item, cursor, new String[]{"display_name"}, new int[]{R.id.load2_listview_item_textview});//            lv_contacts.setAdapter(adapter);        }    }}

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