如何以编程方式添加联系人?

我正在尝试以编程方式在Android中添加联系人。这是我的密码:

ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>();
int rawContactInsertIndex = ops.size();

ops.add(ContentProviderOperation.newInsert(RawContacts.CONTENT_URI)
    .withValue(ContactsContract.RawContacts.ACCOUNT_TYPE,"Google")
    .withValue(ContactsContract.RawContacts.ACCOUNT_NAME,"user1@gmail.com") .build());

ops.add(ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI)
    .withValueBackReference(Data.RAW_CONTACT_ID,rawContactInsertIndex)
    .withValue(ContactsContract.Data.MIMETYPE,ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE)
    .withValue(ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME, name)
    .build());


ops.add(ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI)
    .withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, rawContactInsertIndex)
    .withValue(ContactsContract.Data.MIMETYPE,ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE)
    .withValue(ContactsContract.CommonDataKinds.Phone.NUMBER, phone)
    .withValue(ContactsContract.CommonDataKinds.Phone.TYPE, phoneType)
    .build());


ops.add(ContentProviderOperation.newInsert(ContactsContract
    .Data.CONTENT_URI)
    .withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID,rawContactInsertIndex)
    .withValue(ContactsContract.Data.MIMETYPE,ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE)
    .withValue(ContactsContract.CommonDataKinds.Email.DATA, email)
    .withValue(ContactsContract.CommonDataKinds.Email.TYPE, emailType)
    .build());

try {
    getContentResolver().applyBatch(ContactsContract.AUTHORITY, ops);
    Context ctx = getApplicationContext();
    CharSequence txt = "Contact " + name +" added successfully";
    int duration = Toast.LENGTH_LONG;
    Toast toast = Toast.makeText(ctx, txt, duration);
    toast.show();
} catch (Exception e) {
    Toast.makeText(getApplicationContext(),"error",Toast.LENGTH_LONG).show();
}

注意:我没有创建任何帐户。是否必须有帐户才能添加联系人?