android2.1 怎么通过手机号码查找联系人

public void getContact(){   
     //获得所有的联系人   
    Cursor cur = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);   
    //循环遍历   
    if (cur.moveToFirst()) {   
        int idColumn  = cur.getColumnIndex(ContactsContract.Contacts._ID);   
           
        int displayNameColumn = cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME);   
        do {   
            //获得联系人的ID号   
           String contactId = cur.getString(idColumn);   
           //获得联系人姓名   
           String disPlayName = cur.getString(displayNameColumn);   
           //查看该联系人有多少个电话号码。如果没有这返回值为0   
           int phoneCount = cur.getInt(cur   
                    .getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));   
           if(phoneCount>0){   
               //获得联系人的电话号码   
               Cursor phones = getContentResolver().query(   
                        ContactsContract.CommonDataKinds.Phone.CONTENT_URI,   
                        null,   
                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID   
                                + " = " + contactId, null, null);   
               if(phones.moveToFirst()){   
                   do{   
                       //遍历所有的电话号码   
                       String phoneNumber= phones.getString(phones     
                                .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));   
                       System.out.println(phoneNumber);   
                   }while(phones.moveToNext());   
               }   
              
           }   
  
           } while (cur.moveToNext());   
  
    }   
    }

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