模仿手机发短信选择联系人电话的功能

API

相关常量
  联系人URI: Phone. CONTENT_URI
  姓名字段: Phone.DISPLAY_NAME
  号码字段: Phone. NUMBER

读取联系人权限:
  android.permission.READ_CONTACTS

主界面

<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="${relativePackage}.${activityClass}" >

    <EditText
        android:id="@+id/et_main_number"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:hint="请输入或选择一个联系人号码" />

    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/et_main_number"
        android:text="选择联系人" 
        android:onClick="toContactList"/>

</RelativeLayout>

package com.jane.App_provider;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;

public class MainActivity extends Activity
{

  private EditText et_main_number;

  @Override
  protected void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    et_main_number = (EditText) findViewById(R.id.et_main_number);
  }

  public void toContactList(View v)
  {
    // 启动联系人列表界面
    startActivityForResult(new Intent(this, ContactListActivity.class), 1);
  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data)
  {
    if (requestCode == 1 && resultCode == RESULT_OK)
    {
      // 得到返回的number
      String number = data.getStringExtra("NUMBER");
      // 显示
      et_main_number.setText(number);
    }
  }
}

联系人列表界面

<ListView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/list"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

</ListView>

<?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="wrap_content"
    android:padding="5dp"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/tv_item_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" 
        android:textSize="18sp"/>

    <TextView
        android:id="@+id/tv_item_number"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" 
        android:textSize="18sp"
        android:layout_marginLeft="10dp"/>

</LinearLayout>

package com.jane.App_provider;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.ListActivity;
import android.content.ContentResolver;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class ContactListActivity extends ListActivity implements OnItemClickListener
{

  private ListView listView;
  private ContactAdapter adapter;
  private List<Map<String, String>> data = new ArrayList<Map<String, String>>();

  @Override
  protected void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_contact_list);

    listView = getListView();
    adapter = new ContactAdapter();
    // 查询得到联系人表数据
    // ContentResolver
    ContentResolver resolver = getContentResolver();
    // 执行查询得到cursor
    String[] projection =
    { Phone.DISPLAY_NAME, Phone.NUMBER };
    Cursor cursor = resolver.query(Phone.CONTENT_URI, projection, null,
        null, null);
    // 取出其中的数据保存到data
    while (cursor.moveToNext())
    {
      String name = cursor.getString(0);
      String number = cursor.getString(1);
      Map<String, String> map = new HashMap<String, String>();
      map.put("name", name);
      map.put("number", number);
      data.add(map);
    }
    // 显示列表
    listView.setAdapter(adapter);

    // 给listView添加item点击监听
    listView.setOnItemClickListener(this);

  }

  class ContactAdapter extends BaseAdapter
  {

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

    @Override
    public Object getItem(int position)
    {
      return data.get(position);
    }

    @Override
    public long getItemId(int position)
    {
      return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent)
    {
      if (convertView == null)
      {
        convertView = View.inflate(ContactListActivity.this,R.layout.item_contact, null);
      }

      Map<String, String> map = data.get(position);
      TextView nameTV = (TextView) convertView.findViewById(R.id.tv_item_name);
      TextView nubmerTV = (TextView) convertView.findViewById(R.id.tv_item_number);
      nameTV.setText(map.get("name"));
      nubmerTV.setText(map.get("number"));

      return convertView;
    }
  }

  @Override
  public void onItemClick(AdapterView<?> parent, View view, int position,long id)
  {
    // 得到选择的号码
    String number = data.get(position).get("number");
    Intent intent = getIntent();
    intent.putExtra("NUMBER", number);
    // 设置结果
    setResult(RESULT_OK, intent);
    // 返回
    finish();
  }
}