Android利用ContentProvider获取联系人信息

本文实例为大家分享了android利用contentprovider获取联系人信息的具体代码，供大家参考，具体内容如下

在写代码前我们首先看一下运行的效果

运行效果如下：

点了获取联系人就展示如下效果

读取联系人信息的例子（mainactivity）

package com.example.administrator.myapplication;

import android.content.contentresolver;
import android.database.cursor;
import android.net.uri;
import android.support.v7.app.appcompatactivity;
import android.os.bundle;
import android.util.log;
import android.view.view;
import android.widget.listview;
import android.widget.simpleadapter;

import java.util.arraylist;
import java.util.hashmap;
import java.util.list;
import java.util.map;
import java.util.objects;

/**
 * 获取联系人
 */
public class mainactivity extends appcompatactivity {

    private contentresolver cr;
    private list<map<string,object>> data;
    private listview lv_main_list;
    private simpleadapter simpleadapter;

    @override
    protected void oncreate(bundle savedinstancestate) {
        super.oncreate(savedinstancestate);
        setcontentview(r.layout.activity_main);
        lv_main_list = (listview)findviewbyid(r.id.lv_main_list);

        //获取内容访问者
        cr = getcontentresolver();

        data = new arraylist<map<string,object>>();
        //适配器
        simpleadapter = new simpleadapter(this,data,android.r.layout.simple_list_item_2,new string[]{"names","phones"},new int[]{android.r.id.text1,android.r.id.text2});
        lv_main_list.setadapter(simpleadapter);
    }

    public void getcontacts(view view){
        cursor cursor=cr.query(uri.parse("content://com.android.contacts/raw_contacts"),null,null,null,null);
        while(cursor.movetonext()){
            map<string,object> map=new hashmap<string,object>();
            int id=cursor.getint(cursor.getcolumnindex("_id"));
            string displayname=cursor.getstring(cursor.getcolumnindex("display_name"));
            log.i("test",id+" "+displayname);
            map.put("names",displayname);

            //根据联系人获取联系人数据
            cursor cursor2=cr.query(uri.parse("content://com.android.contacts/raw_contacts/"+id+"/data"),null,null,null,null);
            while(cursor2.movetonext()){
              //  int type=cursor2.getint(cursor2.getcolumnindex("mimetype_id"));
                string type=cursor2.getstring(cursor2.getcolumnindex("mimetype"));
                string data1=null;
                if ("vnd.android.cursor.item/phone_v2".equals(type)){
                    data1 = cursor2.getstring(cursor2.getcolumnindex("data1"));
                    log.i("test","   "+type+" "+data1);
                    map.put("phones",data1);
                }
            }
            data.add(map);
        }
        //通知适配器发生改变
        simpleadapter.notifydatasetchanged();
    }
}

布局文件（activity_main.xml）

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingbottom="@dimen/activity_vertical_margin"
    android:paddingleft="@dimen/activity_horizontal_margin"
    android:paddingright="@dimen/activity_horizontal_margin"
    android:paddingtop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context="com.example.administrator.myapplication.mainactivity">

    <button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="获取所有的联系人"
        android:onclick="getcontacts"
        />
    <listview
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/lv_main_list"

        ></listview>
</linearlayout>

需要在清单文件上配置联系人的权限（androidmanifest.xml）

<uses-permission android:name="android.permission.read_contacts" />

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。