android:获取手机号码和姓名实现通讯录

首先是运行结果

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

 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

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

布局文件

activity_main.xml

<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

<?xml version="1.0" encoding="utf-8"?>
<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" />

</RelativeLayout>

自己封装一个联系人信息的类 有两个变量

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

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;
	}
}

自定义adapter

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;
	}
}

MainActivity中listview加载适配器 并为其添加点击监听事件

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);
	}

}