Realm do a IN query in android

问题

Is is possible to do a "IN" query with Realm in android? I mean, doing the equivalent of "SELECT X FROM X WHERE x IN (...)?

Thank you very much in advance!

回答1:

The official IN operator (since 1.2.0) works like this:

public RealmQuery<E> in(String fieldName, String[] values) {
    if (values == null || values.length == 0) {
        throw new IllegalArgumentException(EMPTY_VALUES);
    }
    beginGroup().equalTo(fieldName, values[0]);
    for (int i = 1; i < values.length; i++) {
        or().equalTo(fieldName, values[i]);
    }
    return endGroup();
}

来源：https://stackoverflow.com/questions/35584661/realm-do-a-in-query-in-android