Android 获取手机联系人实例代码详解

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; }}