获取手机通讯录

首先是运行结果

获取手机通讯录

由于通讯录在手机里是以数据库贮存的 所以我们可以通过一个方法

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context.getContentResolver().query(Phone.CONTENT_URI,
               null, null, null, null);

来获得通讯录 ,这个方法返回一个游标的数据类型，通过moveToNext()方法来获取所有的手机号码信息

当然读取手机通讯录需要权限 在adnroidManifest文件中声明即可

由于我也实现了打电话的功能 所以也要声明权限

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<uses-permission android:name="android.permission.READ_CONTACTS">
<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission></uses-permission>
布局文件

activity_main.xml

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<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">
 
    <listview android:id="@+id/listView1" android:layout_width="match_parent" android:layout_height="wrap_content">
    </listview>
 
</relativelayout>
listview的布局文件：item.xml，在这里我设置的头像为默认的 当然也可以在手机数据库中读取联系人的icon
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<!--{cke_protected}{C}%3C!%2D%2D%3Fxml%20version%3D%221.0%22%20encoding%3D%22utf-8%22%3F%2D%2D%3E-->
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent">
 
    <imageview android:id="@+id/image" android:layout_width="60dp" android:layout_height="60dp" android:padding="10dp" android:src="@drawable/ic_launcher">
 
    <textview android:id="@+id/name" android:paddingtop="10dp" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_torightof="@id/image" android:text="name">
 
    <textview android:id="@+id/number" android:paddingtop="5dp" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/name" android:layout_torightof="@id/image" android:text="number">
 
</textview></textview></imageview></relativelayout>

自己封装一个联系人信息的类 有两个变量

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package com.example.getphonenumber;
 
public class PhoneInfo {
    private String name;
    private String number;
    public PhoneInfo(String name, String number) {
        this.name = name;
        this.number = number;
    }
    public String getName() {
        return name;
    }
    public String getNumber() {
        return number;
    }
}

读取手机数据库中的通讯录

GetPhoneNumberFromMobile.class

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package com.example.getphonenumber;
 
import java.util.ArrayList;
import java.util.List;
 
import android.content.Context;
import android.database.Cursor;
import android.provider.ContactsContract.CommonDataKinds.Phone;
 
public class GetPhoneNumberFromMobile {
    private List<phoneinfo> list;
 
    public List<phoneinfo> getPhoneNumberFromMobile(Context context) {
        // TODO Auto-generated constructor stub
        list = new ArrayList<phoneinfo>();
        Cursor cursor = context.getContentResolver().query(Phone.CONTENT_URI,
                null, null, null, null);
        //moveToNext方法返回的是一个boolean类型的数据
        while (cursor.moveToNext()) {
            //读取通讯录的姓名
            String name = cursor.getString(cursor
                    .getColumnIndex(Phone.DISPLAY_NAME));
            //读取通讯录的号码
            String number = cursor.getString(cursor
                    .getColumnIndex(Phone.NUMBER));
            PhoneInfo phoneInfo = new PhoneInfo(name, number);
            list.add(phoneInfo);
        }
        return list;
    }
}</phoneinfo></phoneinfo></phoneinfo>
自定义adapter
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package com.example.getphonenumber;
 
import java.util.ArrayList;
import java.util.List;
 
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
 
public class MyAdapter extends BaseAdapter{
    private List<phoneinfo> list;
    private Context context;
     
    public MyAdapter(List<phoneinfo> list, Context context) {
        this.list = list;
        this.context = context;
    }
 
    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return list.size();
    }
 
    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return list.get(position);
    }
 
    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }
 
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        if(convertView==null){
            ViewHolder viewHolder=new ViewHolder();
            LayoutInflater inflater=LayoutInflater.from(context);
            convertView=inflater.inflate(R.layout.item, null);
            viewHolder.name=(TextView) convertView.findViewById(R.id.name);
            viewHolder.number=(TextView) convertView.findViewById(R.id.number);
            viewHolder.name.setText(list.get(position).getName());
            viewHolder.number.setText(list.get(position).getNumber());
        }
        return convertView;
    }
    public class ViewHolder{
        TextView name;
        TextView number;
    }
}</phoneinfo></phoneinfo>
MainActivity中listview加载适配器 并为其添加点击监听事件
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package com.example.getphonenumber;
 
import java.util.ArrayList;
import java.util.List;
 
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;
 
public class MainActivity extends Activity implements OnItemClickListener {
    private ListView lv;
    private MyAdapter adapter;
    private GetPhoneNumberFromMobile getPhoneNumberFromMobile;
    private List<phoneinfo> list = new ArrayList<phoneinfo>();
 
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        lv = (ListView) findViewById(R.id.listView1);
        getPhoneNumberFromMobile = new GetPhoneNumberFromMobile();
        list = getPhoneNumberFromMobile.getPhoneNumberFromMobile(this);
        adapter = new MyAdapter(list, this);
        lv.setAdapter(adapter);
        lv.setOnItemClickListener(this);
    }
 
    @Override
    public void onItemClick(AdapterView<!--?--> parent, View view, int position,
            long id) {
        // TODO Auto-generated method stub
        String number = list.get(position).getNumber();
        Intent intent = new Intent();
        intent.setAction("android.intent.action.CALL");
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.setData(Uri.parse("tel:"+number));
        startActivity(intent);
    }
 
}</phoneinfo></phoneinfo>

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