获取手机通讯录放入PinnedSectionListView中，按名字首字母排序，并且实现拨打电话功能。

 package com.lixu.tongxunlu;

 import java.util.ArrayList;
 import com.lixu.tongxunlu.PinnedSectionListView.PinnedSectionListAdapter;
 import android.app.Activity;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.database.Cursor;
 import android.graphics.Color;
 import android.net.Uri;
 import android.os.Bundle;
 import android.provider.ContactsContract;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
 import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.ArrayAdapter;
 import android.widget.TextView;

 public class MainActivity extends Activity {
     private ArrayList<Contacts> contacts;
     private ArrayList<Data> data;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         // 去掉标题头
         requestWindowFeature(Window.FEATURE_NO_TITLE);
         setContentView(R.layout.activity_main);
         // 设置程序全屏
         toggleFullscreen(true);

         data = new ArrayList<Data>();
         contacts = new ArrayList<Contacts>();
         // 获取手机联系人后装到contacts中
         getcontacts(contacts);

         int A = (int) 'A';
         for (int i = 0; i < 26; i++) {
             int letter = A + i;
             char c = (char) letter;

             Data group = new Data();

             group.type = Data.GROUP;
             group.text = c + "";
             data.add(group);
             for (int j = 0; j < contacts.size(); j++) {
                 Contacts cc = contacts.get(j);
                 String ss = cc.firstLetterofNmae();
                 // 判断联系人名字首字母是否和组名字母一样，一样后加入本组
                 if (ss.equals(group.text)) {
                     Data child = new Data();
                     child.type = Data.CHILD;
                     child.text = cc.name + "" + cc.getPhoneNumbers();
                     child.contacts = cc;
                     data.add(child);
                 }

             }

         }

         PinnedSectionListView pslv = (PinnedSectionListView) findViewById(R.id.pslv);

         pslv.setAdapter(new MyAdapter(this, -1));

         pslv.setOnItemClickListener(new OnItemClickListener() {

             @Override
             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                 // 判断点击子菜单才会触发点击事件
                 if (data.get(position).type == Data.CHILD) {
                     Data datas = data.get(position);
                     Contacts contact = datas.contacts;
                     // 获取电话号码
                     String number = contact.getPhoneNumbers();

                     Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + number));
                     startActivity(intent);
                 }
             }
         });

     }

     // 设置程序全屏的方法
     public void toggleFullscreen(boolean fullScreen) {
         // fullScreen为true时全屏

         WindowManager.LayoutParams attrs = getWindow().getAttributes();

         if (fullScreen) {
             attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
         } else {
             attrs.flags &= ~WindowManager.LayoutParams.FLAG_FULLSCREEN;
         }

         getWindow().setAttributes(attrs);
     }

     private class Data {
         public static final int GROUP = 0;
         public static final int CHILD = 1;
         public static final int STYE = 2;
         public String text;
         public int type;
         public Contacts contacts = null;

     }

     private class MyAdapter extends ArrayAdapter implements PinnedSectionListAdapter {
         private LayoutInflater flater;

         public MyAdapter(Context context, int resource) {
             super(context, resource);
             flater = LayoutInflater.from(context);
         }

         @Override
         public int getCount() {
             return data.size();
         }

         @Override
         public Object getItem(int position) {
             return data.get(position);
         }

         @Override
         public int getItemViewType(int position) {
             return data.get(position).type;
         }

         @Override
         public int getViewTypeCount() {
             return Data.STYE;
         }

         @Override
         public View getView(int position, View convertView, ViewGroup parent) {
             int type = getItemViewType(position);
             Data data = (Data) getItem(position);
             switch (type) {
             case Data.GROUP:
                 if (convertView == null)
                     convertView = flater.inflate(android.R.layout.simple_list_item_1, null);

                 TextView tv = (TextView) convertView.findViewById(android.R.id.text1);
                 tv.setBackgroundColor(Color.GREEN);
                 tv.setTextSize(35);
                 tv.setText(data.text);

                 break;

             case Data.CHILD:
                 if (convertView == null)
                     convertView = flater.inflate(android.R.layout.simple_list_item_1, null);

                 TextView tv1 = (TextView) convertView.findViewById(android.R.id.text1);
                 tv1.setTextSize(20);
                 tv1.setText(data.text);

                 break;

             default:
                 break;
             }
             return convertView;
         }

         @Override
         public boolean isItemViewTypePinned(int viewType) {
             boolean type = false;
             switch (viewType) {
             case Data.CHILD:

                 type = false;

                 break;

             case Data.GROUP:

                 type = true;

                 break;

             default:
                 break;
             }
             return type;
         }

     }

     // 获取手机联系人的方法
     private void getcontacts(ArrayList<Contacts> contacts) {
         Uri uri = Uri.parse("content://com.android.contacts/contacts");
         ContentResolver resolver = this.getContentResolver();
         // 给query传递一个SORT_KEY_PRIMARY，让ContentResolver将获得的数据按照联系人名字首字母排序
         Cursor cursor = resolver.query(uri, null, null, null,
                 android.provider.ContactsContract.Contacts.SORT_KEY_PRIMARY);
         while (cursor.moveToNext()) {
             // 联系人的id
             String id = cursor.getString(cursor.getColumnIndex(android.provider.ContactsContract.Contacts._ID));
             // 将联系人按姓名首字母分组
             String sort_key_primary = cursor
                     .getString(cursor.getColumnIndex(android.provider.ContactsContract.Contacts.SORT_KEY_PRIMARY));
             // 获取联系人的名字
             String name = cursor
                     .getString(cursor.getColumnIndex(android.provider.ContactsContract.Contacts.DISPLAY_NAME));
             Contacts mContacts = new Contacts();
             mContacts.id = id;
             mContacts.name = name;
             mContacts.sort_key_primary = sort_key_primary;
             // 获取联系人手机号码
             Cursor phone = resolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                     ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + id, null, null);
             // 将获取到的号码遍历
             ArrayList<String> phonenumbers = new ArrayList<String>();
             while (phone.moveToNext()) {
                 int phoneFieldColumnIndex = phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
                 String phonenumber = phone.getString(phoneFieldColumnIndex);
                 phonenumbers.add(phonenumber);
             }
             mContacts.phonenumbers = phonenumbers;
             contacts.add(mContacts);

         }
     }

     private class Contacts {
         public String id;
         public String name;
         public String sort_key_primary;
         public ArrayList<String> phonenumbers;

         // 获取汉字首字母转换成大写字母
         public String firstLetterofNmae() {
             String s = sort_key_primary.charAt(0) + "";
             return s.toUpperCase();

         }

         public String getPhoneNumbers() {
             String phones = "";
             for (int i = 0; i < phonenumbers.size(); i++) {
                 phones += ":" + phonenumbers.get(i);
             }
             return phones;

         }
     }

 }

xml文件：

不要忘记添加各种权限。

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:padding="10dp" >

     <com.lixu.tongxunlu.PinnedSectionListView
         android:id="@+id/pslv"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" />

 </RelativeLayout>

效果示例图：