Android使用ContentResolver搜索手机通讯录的方法

本文实例讲述了使用搜索手机的方法。分享给大家供大家参考，具体如下：

在这个程序中使用ContentResolver来访问通讯录里联系人的关键字，并将所有找到的联系人存入CursorAdapter里。输入搜索人员名字a ,会将所有以a开头的名字都显示出来，输入*，则所有通讯录中的人名显示于AutoCompleteView的AdapterView里，若发生了User选择事件后，会将勾选的联系人电话号码显示于TextView里。

此程序中用到了ContentResolver .query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder)来取出通讯录里的所有联系人;其中将selection及selectionArgs传入null代表将所有联系人找出来。用Cursor 的getString(column index)的方式来取得存储内容,其中column index从0开始，这一点与java.sql.ResultSet不同，因为它是从1开始的。用AutoCompleteTextView.OnItemClickListener事件，这也是当用户单击联系人之后所拦截的事件处理，在其中便以ContactsAdapter.getCursor()方法取得联系人的电话号码。

程序如下：

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									import android.app.Activity;

									import android.content.ContentResolver;

									import android.database.Cursor;

									import android.os.Bundle;

									import android.provider.Contacts;

									import android.view.View;

									import android.widget.AdapterView;

									import android.widget.AdapterView.OnItemClickListener;

									import android.widget.AutoCompleteTextView;

									import android.widget.TextView;

									@SuppressWarnings("deprecation")

									public class A07Activity extends Activity {

									 private AutoCompleteTextView actv;

									 private TextView tv;

									 private Cursor c01;

									 private ContactsAdapter ca;

									 //找出通讯录中的字段

									 public static String[] people={

									  Contacts.People._ID,

									  Contacts.People.PRIMARY_PHONE_ID,

									  Contacts.People.TYPE,

									  Contacts.People.NUMBER,

									  Contacts.People.LABEL,

									  Contacts.People.NAME

									     }; 

									  /** Called when the activity is first created. */

									  @Override

									  public void onCreate(Bundle savedInstanceState) {

									    super.onCreate(savedInstanceState);

									    setContentView(R.layout.main);

									    actv=(AutoCompleteTextView)findViewById(R.id.actv);

									    tv=(TextView)findViewById(R.id.tv);

									    ContentResolver cr=getContentResolver();

									    c01=cr.query(Contacts.People.CONTENT_URI, people, null, null, Contacts.People.DEFAULT_SORT_ORDER);

									    ca=new ContactsAdapter(this,c01);

									    actv.setAdapter(ca);

									    actv.setOnItemClickListener(new OnItemClickListener(){

									  @Override

									  public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,

									   long arg3) {

									  // TODO Auto-generated method stub

									  Cursor c02=ca.getCursor();

									  c02.moveToPosition(arg2);

									  String number=c02.getString(c02.getColumnIndexOrThrow(Contacts.People.NUMBER));

									  number=number==null?"无电话输入": number;

									  tv.setText(c02.getString(c02.getColumnIndexOrThrow(Contacts.People.NAME))+"的电话是："+number);

									  }

									    });

									  }

									}

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									import android.content.ContentResolver;

									import android.content.Context;

									import android.database.Cursor;

									import android.provider.Contacts;

									import android.view.LayoutInflater;

									import android.view.View;

									import android.view.ViewGroup;

									import android.widget.CursorAdapter;

									import android.widget.TextView;

									@SuppressWarnings("deprecation")

									public class ContactsAdapter extends CursorAdapter{

									 ContentResolver cr;

									 public ContactsAdapter(Context context, Cursor c) {

									 super(context, c);

									 // TODO Auto-generated constructor stub

									 cr=context.getContentResolver();

									 }

									 @Override

									 public void bindView(View view, Context context, Cursor cursor) {

									 // TODO Auto-generated method stub

									 ((TextView)view).setText(cursor.getString(cursor.getColumnIndexOrThrow(Contacts.People.NAME)));

									 }

									 @Override

									 public View newView(Context context, Cursor cursor, ViewGroup parent) {

									 // TODO Auto-generated method stub

									 final LayoutInflater li=LayoutInflater.from(context);

									 final TextView tv=(TextView)li.inflate(android.R.layout.simple_dropdown_item_1line, parent, false);

									 tv.setText(cursor.getString(cursor.getColumnIndexOrThrow(Contacts.People.NAME)));

									 return tv;

									 }

									 public String converToString(Cursor c){

									 return c.getString(c.getColumnIndexOrThrow(Contacts.People.NAME));

									 }

									 @SuppressWarnings("null")

									 public Cursor runQueryOnBackgroundThread(CharSequence cs){

									 if(getFilterQueryProvider()!=null){

									  getFilterQueryProvider().runQuery(cs);

									 }

									 StringBuilder sb=null;

									 String[] s=null;

									 if(cs==null){

									  sb=new StringBuilder();

									  sb.append("UPPER(");

									  sb.append(Contacts.ContactMethods.NAME);

									  sb.append(")GLOB?");

									   s=new String[]{cs.toString().toUpperCase()+"*"};

									 }

									 return cr.query(

									    Contacts.People.CONTENT_URI,

									    A07Activity.people, 

									    sb==null? null:sb.toString(),

									     s, 

									     Contacts.People.DEFAULT_SORT_ORDER

									     );

									 }

									}

AndroidManifest.xml如下所示：

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

									<manifest xmlns:android="http://schemas.android.com/apk/res/android"

									  package="com.my.a07"

									  android:versionCode="1"

									  android:versionName="1.0" >

									  <uses-sdk android:minSdkVersion="10" />

									  <application

									    android:icon="@drawable/ic_launcher"

									    android:label="@string/app_name" >

									    <activity

									      android:name=".A07Activity"

									      android:label="@string/app_name" >

									      <intent-filter>

									        <action android:name="android.intent.action.MAIN" />

									        <category android:name="android.intent.category.LAUNCHER" />

									      </intent-filter>

									    </activity>

									  </application>

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

									</manifest>