获取手机联系人

package com.org.demo.demo;

import com.org.wangfeng.R;

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

public class GetPhoneActivity extends Activity {
    private EditText editText;
    private Button button;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.getphoneactivity);
        editText = (EditText) findViewById(R.id.et_getphone);
        button = (Button) findViewById(R.id.bb_getphone);

        button.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                Intent intent = new Intent(GetPhoneActivity.this,
                        ContactActivity.class);
                startActivityForResult(intent, 1);
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // System.out.println("resultCode:" + resultCode);
        // System.out.println("requestCode:" + requestCode);
        Log.d("jiejie", "被调用了");
        if (resultCode == Activity.RESULT_OK) {
            String phone = data.getStringExtra("phone");
            Log.d("jiejie", "_______________"+phone);
            phone = phone.replaceAll("-", "").replaceAll(" ", "");// 替换-和空格

            editText.setText(phone);// 把电话号码设置给输入框
        }

        super.onActivityResult(requestCode, resultCode, data);
    }
}

package com.org.demo.demo;

import java.util.ArrayList;
import java.util.HashMap;

import com.org.wangfeng.R;

import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.TextView;

public class ContactActivity extends Activity {
    private ListView lvList;
    private ArrayList<HashMap<String, String>> readContact;
    private TextView back;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_contact);
        back =(TextView)findViewById(R.id.back);
        back.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                finish();
            }
        });

        lvList = (ListView) findViewById(R.id.lv_list);

        readContact = readContact();
        // System.out.println(readContact);
        lvList.setAdapter(new SimpleAdapter(this, readContact,
                R.layout.contact_list_item, new String[] { "name", "phone" },
                new int[] { R.id.tv_name, R.id.tv_phone }));

        lvList.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view,
                    int position, long id) {
                String phone = readContact.get(position).get("phone");// 读取当前item的电话号码
                Intent intent = new Intent();
                intent.putExtra("phone", phone);
                setResult(Activity.RESULT_OK, intent);// 将数据放在intent中返回给上一个页面

                finish();
            }
        });
    }

    private ArrayList<HashMap<String, String>> readContact() {
        // 首先,从raw_contacts中读取联系人的id("contact_id")
        // 其次, 根据contact_id从data表中查询出相应的电话号码和联系人名称
        // 然后,根据mimetype来区分哪个是联系人,哪个是电话号码
        Uri rawContactsUri = Uri
                .parse("content://com.android.contacts/raw_contacts");
        Uri dataUri = Uri.parse("content://com.android.contacts/data");

        ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>();

        // 从raw_contacts中读取联系人的id("contact_id")
        Cursor rawContactsCursor = getContentResolver().query(rawContactsUri,
                new String[] { "contact_id" }, null, null, null);
        if (rawContactsCursor != null) {
            while (rawContactsCursor.moveToNext()) {
                String contactId = rawContactsCursor.getString(0);
                // System.out.println(contactId);

                // 根据contact_id从data表中查询出相应的电话号码和联系人名称, 实际上查询的是视图view_data
                Cursor dataCursor = getContentResolver().query(dataUri,
                        new String[] { "data1", "mimetype" }, "contact_id=?",
                        new String[] { contactId }, null);

                if (dataCursor != null) {
                    HashMap<String, String> map = new HashMap<String, String>();
                    while (dataCursor.moveToNext()) {
                        String data1 = dataCursor.getString(0);
                        String mimetype = dataCursor.getString(1);
                        // System.out.println(contactId + ";" + data1 + ";"
                        // + mimetype);
                        if ("vnd.android.cursor.item/phone_v2".equals(mimetype)) {
                            map.put("phone", data1);
                        } else if ("vnd.android.cursor.item/name"
                                .equals(mimetype)) {
                            map.put("name", data1);
                        }
                    }

                    list.add(map);
                    dataCursor.close();
                }
            }

            rawContactsCursor.close();
        }

        return list;
    }
}