我找到了我的问题的解决方案，所以我把答案放在这里..可能对其他人有用..

I have found Solution of my question so i put my answer here.. may it useful for others..

首先，请先阅读并尝试了解Android Contacts数据存储的图，因为这样很容易理解整个联系人流程.片段下方给出了三层数据模型图.

First Read and try to understand diagram of Android Contacts Data Store after that it's easy to understand whole contact flow. Three tier data model diagram is given below the snippets.

代码段

//This class provides applications access to the content model.
ContentResolver cr = context.getContentResolver();

//RowContacts for filter Account Types
Cursor contactCursor = cr.query(
        ContactsContract.RawContacts.CONTENT_URI,
        new String[]{ContactsContract.RawContacts._ID,
                ContactsContract.RawContacts.CONTACT_ID},
        ContactsContract.RawContacts.ACCOUNT_TYPE + "= ?",
        new String[]{"com.whatsapp"},
        null);

//ArrayList for Store Whatsapp Contact
ArrayList<String> myWhatsappContacts = new ArrayList<>();

if (contactCursor != null) {
    if (contactCursor.getCount() > 0) {
        if (contactCursor.moveToFirst()) {
            do {
                //whatsappContactId for get Number,Name,Id ect... from  ContactsContract.CommonDataKinds.Phone
                String whatsappContactId = contactCursor.getString(contactCursor.getColumnIndex(ContactsContract.RawContacts.CONTACT_ID));

                if (whatsappContactId != null) {
                    //Get Data from ContactsContract.CommonDataKinds.Phone of Specific CONTACT_ID
                    Cursor whatsAppContactCursor = cr.query(
                            ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                            new String[]{ContactsContract.CommonDataKinds.Phone.CONTACT_ID,
                                    ContactsContract.CommonDataKinds.Phone.NUMBER,
                                    ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME},
                            ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
                            new String[]{whatsappContactId}, null);

                    if (whatsAppContactCursor != null) {
                        whatsAppContactCursor.moveToFirst();
                        String id = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));
                        String name = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
                        String number = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

                        whatsAppContactCursor.close();

                        //Add Number to ArrayList
                        myWhatsappContacts.add(number);

                        showLogI(TAG, " WhatsApp contact id  :  " + id);
                        showLogI(TAG, " WhatsApp contact name :  " + name);
                        showLogI(TAG, " WhatsApp contact number :  " + number);
                    }
                }
            } while (contactCursor.moveToNext());
            contactCursor.close();
        }
    }
}

showLogI(TAG, " WhatsApp contact size :  " + myWhatsappContacts.size());

这是显示Android联系人数据存储图

here is the show Android Contact Data Store Diagram