RealmFullTextSearch.java

import android.text.TextUtils;

import io.realm.Case;
import io.realm.Realm;
import io.realm.RealmObject;
import io.realm.RealmResults;

public class RealmFullTextSearch {

    public static <T extends RealmObject> RealmResults<T> search(Realm realm, Class<T> modelClass, String query, String fieldName, boolean partialSearch){
        RealmResults<T> realmResults = realm.where(modelClass).findAll();
        if (TextUtils.isEmpty(query)) {
            return realmResults;
        }
        String[] keywords = query.split(" ");
        for (String keyword : keywords) {
            String spacedKeyword = " " + keyword;
            realmResults = realmResults.where().beginsWith(fieldName, keyword, Case.INSENSITIVE).or().contains(fieldName, spacedKeyword, Case.SENSITIVE).findAll();
        }
        return realmResults;
    }
}