RealmChangeListener does not get called when Realm gets updated in NotificationListenerService

I can see two solutions to this, either use a looper thread (HandlerThread) with setAutoRefresh(true) (and call setAutoRefresh(false) before Looper.quit()), or force a refresh for the Realm instance on the thread.

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NOTE: This relies on package-internal methods. Beware.

In v 1.1.1 (and v1.2.0), – and any version before 3.0.0 – instead of the following line

//  mRealm.waitForChange(); / mRealm.refresh();

You could force the update on the local thread through the HandlerController associated with the Realm instance using package-internal stuff

package io.realm;

public class RealmRefresh {
    public static void refreshRealm(Realm realm) {
        Message message = Message.obtain();
        message.what = HandlerControllerConstants.LOCAL_COMMIT;
        realm.handlerController.handleMessage(message);
    }
}

And then call

    mRealm = Realm.getDefaultInstance();
    RealmHelper.saveObj(myRealmObject, mRealm);
    RealmRefresh.refreshRealm(mRealm);
    mRealm.close();

Please note the change log’s breaking changes though, because 0.89.0 changed iteration behavior, and results are no longer live during an active transaction; but from 3.0.0 they are again.

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However, I must also note that if your NotificationListenerService is running in a remote process, then the Realm instances won’t be able to notify each other.

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EDIT:

In Realm Java 3.0.0, the notification behavior was changed completely, and HandlerController no longer exists.

Instead, the following should work:

package io.realm;

public class RealmRefresh {
    public static void refreshRealm(Realm realm) {
        realm.sharedRealm.refresh();
    }
}

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EDIT:

In Realm 3.2.+, this is all available with

realm.refresh();