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1.创建一个android project
1.1添加SimpleCursorAdapterActivity类，并在AnddroidMainfest.xml添加如下代码：
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.wang.adapder" > <uses-permission android:name="android.permission.READ_CONTACTS"/> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".SimpleCursorAdapterActivity" > </activity> </application> </manifest>
1.2在MainActivity类的onCreate方法中添加如下代码：
Button btn = (Button)findViewById(R.id.button_simpCursorAdapter); btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this,SimpleCursorAdapterActivity.class); startActivity(intent); } });
2.创建activity_simple_cursor.xml和activity_list_item.xml两个Layout XML
在activity_simple_cursor.xml中添加如下代码：
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="显示手机的联系人:" /> <ListView android:id="@id/android:list" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="1" android:drawSelectorOnTop="false" /> </LinearLayout>
在activity_list_item.xml中添加如下代码：
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <TableRow android:id="@+id/TableRow0" android:layout_height="wrap_content" android:layout_width="wrap_content"> <TextView android:id="@+id/item" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="20px" /> <TextView android:text=": " android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="20px" /> <TextView android:id="@+id/item2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="20px" /> </TableRow> </LinearLayout>
3.在SimpleCursorAdapterActivity添加如下代码：
package com.example.wang.adapder; import android.app.ListActivity; import android.database.Cursor; import android.os.Bundle; import android.provider.ContactsContract; import android.widget.SimpleAdapter; import java.util.ArrayList; import java.util.HashMap; import java.util.List; /** * Created by Wang on 2015/8/8. */ public class SimpleCursorAdapterActivity extends ListActivity { @Override protected void onCreate(Bundle saveInstance){ super.onCreate(saveInstance); setContentView(R.layout.activity_simple_cursor_adapter); List<HashMap<String,String>> list = fillMaps(); SimpleAdapter adapter = new SimpleAdapter(this,list,R.layout.activity_list_item,new String []{"name","key"},new int [] {R.id.item,R.id.item2}); setListAdapter(adapter); } private List<HashMap<String, String>> fillMaps() { List<HashMap<String, String>> items = new ArrayList<HashMap<String, String>>(); Cursor cur = null; try { // Query using ContentResolver.query or Activity.managedQuery cur = getContentResolver().query( ContactsContract.Contacts.CONTENT_URI, null, null, null, null); if (cur.moveToFirst()) { //判断是否有联系人 int idColumn = cur.getColumnIndex( ContactsContract.Contacts._ID); int displayNameColumn = cur.getColumnIndex( ContactsContract.Contacts.DISPLAY_NAME); // Iterate all users do { String contactId; String displayName;// String phoneNumber = "";//电话号码 // Get the field values contactId = cur.getString(idColumn);//ID displayName = cur.getString(displayNameColumn);//名称 // Get number of user‘s phoneNumbers int numberCount = cur.getInt(cur.getColumnIndex( ContactsContract.Contacts.HAS_PHONE_NUMBER));//获取电话号码长度 if (numberCount>0) { //电话号码存在 Cursor phones = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + contactId /*+ " and " + ContactsContract.CommonDataKinds.Phone.TYPE + "=" + ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE*/, null, null);//根据ID查询联系人 if (phones.moveToFirst()) { int numberColumn = phones.getColumnIndex( ContactsContract.CommonDataKinds.Phone.NUMBER);//获取第一个电话号码 // Iterate all numbers do { phoneNumber += phones.getString(numberColumn) + ",";//以逗号分隔显示其它的电话号码 } while (phones.moveToNext()); } } // Add values to items HashMap<String, String> i = new HashMap<String, String>(); i.put("name", displayName);//名称 i.put("key", phoneNumber);//号码 items.add(i); } while (cur.moveToNext()); } else { //如果没有联系人添加说明记录 HashMap<String, String> i = new HashMap<String, String>(); i.put("name", "通讯录："); i.put("key", "没人联系人"); items.add(i); } } finally { if (cur != null) cur.close(); } return items; } }
注意：不要忘了在AndroidMainfest.xml中添加读取联系人的权限：<uses-permission android:name="android.permission.READ_CONTACTS"/>
4.测试的结果如下：
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原文地址：http://www.cnblogs.com/wangjunqiao/p/4713227.html
