i am writing a application of backup contacts.
i need to delete contacts and groups before restore from backup
file.
the contacts were deleted but the gourps were not .who can tell me how
to do it.
getContentResolver().delete(
ContactsContract.RawContacts.CONTENT_URI, null,
null);
String where = ContactsContract.Data.MIMETYPE + " = ?";
String[] whereParameters = new String[]
{ GroupMembership.CONTENT_ITEM_TYPE };
getContentResolver().delete(
ContactsContract.Data.CONTENT_URI, where,
whereParameters);
getContentResolver().delete(
ContactsContract.Groups.CONTENT_URI,
ContactsContract.Groups.SYSTEM_ID + " is null
and "
+ ContactsContract.Groups._ID +
" > "
+ GROUP_ID_STARRED_IN_ANDROID,
null);
// notify registered observers that a row was updated
getContentResolver().notifyChange(ContactsContract.Groups.CONTENT_URI,
null);
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