[Android] Contacts

1. Documents
   http://developer.android.com/reference/android/provider/Contacts.html
   http://developer.android.com/resources/articles/contacts.html
   
2. Read Contacts after sdk 2.0
   Refer to:
   
   
   

   Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, 
       null, null, null, null); 
     while (cursor.moveToNext()) { 
      String contactId = cursor.getString(cursor.getColumnIndex( 
        ContactsContract.Contacts._ID)); 
      String hasPhone = cursor.getString(cursor.getColumnIndex( 
        ContactsContract.Contacts.HAS_PHONE_NUMBER)); 
      if (Boolean.parseBoolean(hasPhone)) { 
                   // You know have the number so now query it like this
       Cursor phones = getContentResolver().query( 
         ContactsContract.CommonDataKinds.Phone.CONTENT_URI, 
         null, 
         ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = "+ contactId, 
         null, null); 
   /*
   Or
   Cursor phones = getContentResolver().query( 
         ContactsContract.CommonDataKinds.Phone.CONTENT_URI, 
         null, 
         ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?", 
         new String[]{contactId
   }, null); 
   
   */
       while (phones.moveToNext()) { 
   

3.      String phoneNumber = phones.getString( 
          phones.getColumnIndex( 
            ContactsContract.CommonDataKinds.Phone.NUMBER));                 
       } 
       phones.close(); 
      } 
      Cursor emails = getContentResolver().query( 
        ContactsContract.CommonDataKinds.Email.CONTENT_URI, 
        null, 
        ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = " + contactId, 
        null, null); 
      while (emails.moveToNext()) { 
                   // This would allow you get several email addresses 
       String emailAddress = emails.getString( 
         emails.getColumnIndex( 
           ContactsContract.CommonDataKinds.CommonDataColumns.DATA)); 
      } 
      emails.close(); 
     } 
     cursor.close();
   

4. Read contacts from Android 1.6 and before
   refer to:
   2/
   
   package higherpass.TestContacts;
   
   import android.app.Activity;
   import android.content.ContentResolver;
   import android.database.Cursor;
   import android.os.Bundle;
   import android.provider.Contacts;
   import android.provider.Contacts.People;
   
   public class TestContacts extends Activity {
       /** Called when the activity is first created. */
       @Override
       public void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);
           setContentView(R.layout.main);
           ContentResolver cr = getContentResolver();
           Cursor cur = cr.query(People.CONTENT_URI,
               null, null, null, null);
           if (cur.getCount() > 0) {
            while (cur.moveToNext()) {
                String id = cur.getString(cur.getColumnIndex(People._ID));
                String name = cur.getString(cur.getColumnIndex(People.DISPLAY_NAME));
            }
           }
       }
   }
   
   
   if (Integer.parseInt(cur.getString(
               cur.getColumnIndex(People.PRIMARY_PHONE_ID))) > 0) {
           Cursor pCur = cr.query(
                   Contacts.Phones.CONTENT_URI,
                   null,
                   Contacts.Phones.PERSON_ID +" = ?",
                   new String[]{id}, null);
           int i=0;
           int pCount = pCur.getCount();
           String[] phoneNum = new String[pCount];
           String[] phoneType = new String[pCount];
           while (pCur.moveToNext()) {
               phoneNum[i] = pCur.getString(
                                  pCur.getColumnIndex(Contacts.Phones.NUMBER));
               phoneType[i] = pCur.getString(
                                  pCur.getColumnIndex(Contacts.Phones.TYPE));
               i++;
           }
       }
   
5. xxx