Question

我有自定义列表视图，我需要按字母顺序显示联系人你可以提供示例代码我该如何实现？

Answer 1

您可以按照以下字母顺序获取联系人：

Cursor cursor = getContentResolver.query(Phone.CONTENT_URI, null, null, null, Phone.DISPLAY_NAME + " ASC");

参考这些链接以获得更多的团结：

How to call Android contacts list?

How to get contacts from native phonebook in android

How to obtain all details of a contact in Android

How to get the first name and last name from Android contacts?

How to import contacts from phonebook to our application

Android contacts extraction

How to get all android contacts but without those which are on SIM

有关列表，您可以参考本教程：

http://www.vogella.de/articles/AndroidListView/article.html

Answer 2

你需要这样做：

Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " ASC");

Answer 3

使用此代码检索联系人

ArrayList<HashMap<String,String>> contactData=new ArrayList<HashMap<String,String>>();
ContentResolver cr = getContentResolver();
     Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,null, null, null, null);
     while (cursor.moveToNext()) {
         try{
         String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID)); 
         String name=cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
         String hasPhone = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)); 
         if (Integer.parseInt(cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
             Cursor phones = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = "+ contactId, null, null);
             while (phones.moveToNext()) { 
                 String phoneNumber = phones.getString(phones.getColumnIndex( ContactsContract.CommonDataKinds.Phone.NUMBER));
                 HashMap<String,String> map=new HashMap<String,String>();
                 map.put("name", name);
                 map.put("number", phoneNumber);
                 contactData.add(map);
             } 
             phones.close(); 
         }
     }catch(Exception e){}
     }

现在，联系人详细信息存储在 contactData ArrayList中。现在将此arrayList排序为bellow

Collections.sort(contactData, new Comparator(){
                @Override
                public int compare(Object o1, Object o2) {
                    HashMap map1=(HashMap)o1;
                    HashMap map2=(HashMap)o2;
                    String s1=(String)map1.get("name");
                    String s2=(String)map2.get("name");
                    return s1.compareTo(s2);
                }
            });

现在，联系人详细信息存储在 contactData ArrayList中的排序顺序中。

Answer 4

我已将字母标题添加到联系人列表

new ReadContactTask(context, showProgressDialog,new OnContactReadListener() {
            @Override
            public void onContactRead(List<ContactItem> dummyList) {

                ArrayList<ContactItem> latestPhoneContacts = new ArrayList<>();

                if(dummyList!=null && dummyList.size()>0)
                {
                    tvNoResult.setVisibility(View.GONE);

                    for(ContactItem contactItem : dummyList){
                        String contactNameInCapital = "";
                        if(contactItem.getContactName()!=null && contactItem.getContactName().length()>2){
                            contactNameInCapital = contactItem.getContactName().substring(0,1).toUpperCase();

                            if(contactNameInCapital.charAt(0) != previousContact.charAt(0))
                            {
                                latestPhoneContacts.add(new ContactItem(contactNameInCapital.substring(0,1)));
                                latestPhoneContacts.add(contactItem);
                            }
                            else
                            {
                                latestPhoneContacts.add(contactItem);
                            }

                            previousContact = contactNameInCapital;
                        }
                    }
                    if(latestPhoneContacts!=null && latestPhoneContacts.size()>0)
                        contactListAdapter.addItems(latestPhoneContacts);
                }
            }

            @Override
            public void onContactEmpty() {

            }
        }).execute();

其中

private String previousContact ="Zee";

如何在Listview中按字母顺序显示联系人

4 个答案: