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首先先建布局文件，界面很简单，就是一个搜索框和下面的联系人列表:

复制代码 代码如下

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#ffd3d7df" android:orientation="vertical" android:padding="0dip" > <relativelayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginleft="3dip" android:layout_marginright="3dip" android:layout_margintop="3dip" > <edittext android:id="@+id/search_view" android:layout_width="fill_parent" android:layout_height="wrap_content" android:hint="@string/hint_search_contacts" android:paddingleft="32dip" android:singleline="true" android:textsize="16sp" /> <imageview android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignleft="@id/search_view" android:layout_centervertical="true" android:layout_marginleft="3dip" android:src="@drawable/contacts" /> </relativelayout> <listview android:id="@+id/contact_list" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginbottom="0dip" android:layout_marginleft="0dip" android:layout_marginright="0dip" android:layout_margintop="0dip" android:layout_weight="1.0" android:cachecolorhint="#00000000" android:divider="#00000000" android:dividerheight="0.1px" android:fadingedge="none" android:footerdividersenabled="false" android:listselector="@null" android:paddingbottom="0dip" android:paddingleft="0dip" android:paddingright="0dip" android:paddingtop="0dip" /> </linearlayout> 。

  。

复制代码 代码如下

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_height="wrap_content" android:layout_width="fill_parent" android:paddingtop="2dip" android:paddingbottom="2dip" android:background="@color/list_item_background"> <imageview android:id="@+id/photo" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_marginleft="5dip" android:layout_gravity="center_vertical" android:layout_weight="1" android:src="@drawable/default_avatar" /> <linearlayout android:orientation="vertical" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_gravity="center_vertical" android:layout_marginleft="5dip" android:layout_weight="100"> <textview android:id="@+id/text1" android:typeface="serif" android:singleline="true" style="@style/list_font_main_text" /> <linearlayout android:orientation="horizontal" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_margintop="3dip"> <textview android:id="@+id/text2" android:typeface="serif" android:singleline="true" style="@style/list_font_detail_text" /> <textview android:id="@+id/text3" android:ellipsize="marquee" android:layout_marginleft="3dip" android:marqueerepeatlimit="marquee_forever" android:scrollhorizontally="true" style="@style/list_font_detail_text" /> </linearlayout> </linearlayout> </linearlayout> 。

然后是点击事件：(点击后要把选择的联系人号码返回到输入框里) 。

复制代码 代码如下

// 获取联系人按钮对象并绑定onclick单击事件 phonebutton = (button) findviewbyid(r.id.find_phone); phonebutton.setonclicklistener(new onclicklistener() { public void onclick(view v) { // 从联系人选择号码，再通过onactivityresult()方法处理回调结果 intent intent = new intent(context, contactsactivity.class); startactivityforresult(intent, request_code); } }); /** * 选择联系人的回调处理函数 */ @override public void onactivityresult(int reqcode, int resultcode, intent data) { super.onactivityresult(reqcode, resultcode, data); if (resultcode == result_ok) { switch (reqcode) { case request_code: string phone = data.getstringextra("phone"); phoneedittext.settext(phone); break; } } } 。

  下面就是联系人界面的activity了:

复制代码 代码如下

/** * 显示用户手机上的联系人 * * @author mr.z * @time 2012-3-21 * */ public class contactsactivity extends activity { private context ctx = contactsactivity.this; private textview toptitletextview; private listview listview = null; list<hashmap<string, string>> contactslist = null; private edittext contactssearchview; private progressdialog progressdialog = null; // 数据加载完成的消息 private final int message_succ_load = 0; // 数据查询完成的消息 private final int message_succ_query = 1; private handler handler = new handler() { @override public void handlemessage(message msg) { super.handlemessage(msg); switch (msg.what) { case message_succ_load: listview.setadapter(new contactsadapter(ctx)); progressdialog.dismiss(); break; case message_succ_query: listview.setadapter(new contactsadapter(ctx)); break; } } }; protected void oncreate(bundle savedinstancestate) { requestwindowfeature(window.feature_no_title); getwindow().setflags(windowmanager.layoutparams.flag_fullscreen, windowmanager.layoutparams.flag_fullscreen); super.oncreate(savedinstancestate); this.setcontentview(r.layout.contacts); // 使用listview显示联系人 listview = (listview) findviewbyid(r.id.contact_list); loadandsavecontacts(); // 绑定listview item的单击事件 listview.setonitemclicklistener(new onitemclicklistener() { @suppresswarnings("unchecked") public void onitemclick(adapterview<?> adapterview, view view, int position, long _id) { hashmap<string, string> map = (hashmap<string, string>) adapterview.getitematposition(position); string phone = map.get("phone"); // 对手机号码进行预处理（去掉号码前的+86、首尾空格、“-”号等） phone = phone.replaceall("^(\\+86)", ""); phone = phone.replaceall("^(86)", ""); phone = phone.replaceall("-", ""); phone = phone.trim(); // 如果当前号码并不是手机号码 if (!saleutil.isvalidphonenumber(phone)) saleutil.createdialog(ctx, r.string.dialog_title_tip, getstring(r.string.alert_contacts_error_phone)); else { intent intent = new intent(); intent.putextra("phone", phone); setresult(result_ok, intent); // 关闭当前窗口 finish(); } } }); contactssearchview = (edittext) findviewbyid(r.id.search_view); contactssearchview.addtextchangedlistener(new textwatcher() { public void aftertextchanged(editable s) { } public void beforetextchanged(charsequence s, int start, int count, int after) { } public void ontextchanged(charsequence s, int start, int before, int count) { querycontacts(s.tostring()); } }); } /** * 加载并存储联系人数据 */ private void loadandsavecontacts() { progressdialog = progressdialog.show(ctx, null, "正在加载联系人数据..."); new thread() { @override public void run() { // 获取联系人数据 contactslist = findcontacts(); // 临时存储联系人数据 dbhelper.savecontacts(ctx, contactslist); // 发送消息通知更新ui handler.sendemptymessage(message_succ_load); } }.start(); } /** * 根据条件从本地临时库中获取联系人 * * @param keyword 查询关键字 */ private void querycontacts(final string keyword) { new thread() { @override public void run() { // 获取联系人数据 contactslist = dbhelper.findcontactsbycond(ctx, keyword); // 发送消息通知更新ui handler.sendemptymessage(message_succ_query); } }.start(); } /** * 获取手机联系人信息 * * @return list<hashmap<string, string>> */ public list<hashmap<string, string>> findcontacts() { list<hashmap<string, string>> list = new arraylist<hashmap<string, string>>(); // 查询联系人 cursor contactscursor = ctx.getcontentresolver().query(contactscontract.contacts.content_uri, null, null, null, phonelookup.display_name + " collate localized asc"); // 姓名的索引 int nameindex = 0; // 联系人姓名 string name = null; // 联系人头像id string photoid = null; // 联系人的id索引值 string contactsid = null; // 查询联系人的电话号码 cursor phonecursor = null; while (contactscursor.movetonext()) { nameindex = contactscursor.getcolumnindex(phonelookup.display_name); name = contactscursor.getstring(nameindex); photoid = contactscursor.getstring(contactscursor.getcolumnindex(phonelookup.photo_id)); contactsid = contactscursor.getstring(contactscursor.getcolumnindex(contactscontract.contacts._id)); phonecursor = getcontentresolver().query(contactscontract.commondatakinds.phone.content_uri, null, contactscontract.commondatakinds.phone.contact_id + " = " + contactsid, null, null); // 遍历联系人号码（一个人对应于多个电话号码） while (phonecursor.movetonext()) { hashmap<string, string> phonemap = new hashmap<string, string>(); // 添加联系人姓名 phonemap.put("name", name); // 添加联系人头像 phonemap.put("photo", photoid); // 添加电话号码 phonemap.put("phone", phonecursor.getstring(phonecursor.getcolumnindex(contactscontract.commondatakinds.phone.number))); // 添加号码类型（住宅电话、手机号码、单位电话等） phonemap.put("type", getstring(contactscontract.commondatakinds.phone.gettypelabelresource(phonecursor.getint(phonecursor.getcolumnindex(contactscontract.commondatakinds.phone.type))))); list.add(phonemap); } phonecursor.close(); } contactscursor.close(); return list; } /** * 获取联系人头像 * * @param context 上下文环境 * @param photoid 头像id * @return bitmap */ public static bitmap getphoto(context context, string photoid) { bitmap bitmap = bitmapfactory.decoderesource(context.getresources(), r.drawable.default_avatar); if (photoid != null && "".equals(photoid)) { string[] projection = new string[] { contactscontract.data.data15 }; string selection = "contactscontract.data._id = " + photoid; cursor cur = context.getcontentresolver().query(contactscontract.data.content_uri, projection, selection, null, null); if (cur != null) { cur.movetofirst(); byte[] contacticon = null; contacticon = cur.getblob(cur.getcolumnindex(contactscontract.data.data15)); if (contacticon != null) { bitmap = bitmapfactory.decodebytearray(contacticon, 0, contacticon.length); } } } return bitmap; } /** * 自定义联系人adapter */ class contactsadapter extends baseadapter { private layoutinflater inflater = null; public contactsadapter(context ctx) { inflater = layoutinflater.from(ctx); } public int getcount() { return contactslist.size(); } public object getitem(int position) { return contactslist.get(position); } public long getitemid(int position) { return position; } public view getview(int position, view convertview, viewgroup parent) { viewholder holder = null; if (convertview == null) { holder = new viewholder(); convertview = inflater.inflate(r.layout.contacts_listview_item, null); holder.text1 = (textview) convertview.findviewbyid(r.id.text1); holder.text2 = (textview) convertview.findviewbyid(r.id.text2); holder.text3 = (textview) convertview.findviewbyid(r.id.text3); convertview.settag(holder); } else { holder = (viewholder) convertview.gettag(); } holder.text1.settext(contactslist.get(position).get("name")); holder.text2.settext(contactslist.get(position).get("type")); holder.text3.settext(contactslist.get(position).get("phone")); return convertview; } public final class viewholder { private textview text1; private textview text2; private textview text3; } } } 。

查询方法语句:

复制代码 代码如下

/** * 根据条件查询联系人数据 * * @param context 上下文环境 * @param keyword 查询关键字 * @return list<hashmap<string, string>> */ public static list<hashmap<string, string>> findcontactsbycond(context context, string keyword) { list<hashmap<string, string>> list = new arraylist<hashmap<string, string>>(); sqlitedatabase db = dbhelper.getsqlitedb(context); string sql = "select * from contacts where name like '" + keyword + "%' or name_alias like '" + keyword + "%' order by _id"; // 查询数据 cursor cursor = db.rawquery(sql, null); while (cursor.movetonext()) { hashmap<string, string> map = new hashmap<string, string>(); map.put("name", cursor.getstring(cursor.getcolumnindex("name"))); map.put("phone", cursor.getstring(cursor.getcolumnindex("phone"))); map.put("type", cursor.getstring(cursor.getcolumnindex("type"))); map.put("photo", cursor.getstring(cursor.getcolumnindex("photo"))); list.add(map); } cursor.close(); db.close(); return list; } /** * 存储联系人信息 * * @param context 上下文环境 * @param contactslist 联系人列表 */ public static void savecontacts(context context, list<hashmap<string, string>> contactslist) { sqlitedatabase db = dbhelper.getsqlitedb(context); // 开启事务控制 db.begintransaction(); try { // 先将联系人数据清空 db.execsql("drop table if exists contacts"); db.execsql("create table contacts(_id integer not null primary key autoincrement, name varchar(50), name_alias varchar(10), phone varchar(30), type varchar(50), photo varchar(50))"); string sql = null; for (hashmap<string, string> contactsmap : contactslist) { sql = string.format("insert into contacts(name,name_alias,phone,type,photo) values('%s','%s','%s','%s','%s')", contactsmap.get("name"), saleutil.getpinyinfirstalphabet(contactsmap.get("name")), contactsmap.get("phone"), contactsmap.get("type"), contactsmap.get("photo")); db.execsql(sql); } // 设置事务标志为成功 db.settransactionsuccessful(); } finally { // 结束事务 db.endtransaction(); db.close(); } } 。

工具类:

复制代码 代码如下

/** * 判断客户手机号码是否符合规则 * * @param userphone 客户手机号码 * @return true | false */ public static boolean isvalidphonenumber(string userphone) { if (null == userphone || "".equals(userphone)) return false; pattern p = pattern.compile("^0?1[0-9]{10}"); matcher m = p.matcher(userphone); return m.matches(); } /** * 获取中文的拼音首字母 * * @param chinese 中文 * @return 拼音首字母 */ public static string getpinyinfirstalphabet(string chinese) { string convert = ""; for (int j = 0; j < chinese.length(); j++) { char word = chinese.charat(j); string[] pinyinarray = pinyinhelper.tohanyupinyinstringarray(word); if (pinyinarray != null) { convert += pinyinarray[0].charat(0); } else { convert += word; } } return convert; } 。

最后加上权限就行了,

复制代码 代码如下

<!-- 访问联系人的权限 --> <uses-permission android:name="android.permission.read_contacts" /> 。

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