Iteration

You can iterate through results using Flows.

Learn About Flows

To learn more about Kotlin Flows, check out the kotlinx.coroutines documentation on Flows.

To convert your results into a Flow, call realmQuery.asFlow(). Then iterate through the results with flow.collect():

// fetch frogs from the realm as Flowables
val frogsFlow: Flow<ResultsChange<Frog>> = realm.query<Frog>().asFlow()

// iterate through the flow with collect, printing each item
val frogsObserver: Deferred<Unit> = async {
    frogsFlow.collect { results ->
        when (results) {
            // print out initial results
            is InitialResults<Frog> -> {
                for (frog in results.list) {
                    Log.v("Frog: $frog")
                }
            }
            else -> {
                // do nothing on changes
            }
        }
    }
}

// ... some time later, cancel the flow so you can safely close the realm
frogsObserver.cancel()
realm.close()

find() is Synchronous

You can also iterate through results returned via find(). find() runs a synchronous query on the thread it is called from. As a result, avoid using find() on the UI thread or in logic that could delay the UI thread. Prefer asFlow() in time sensitive environments.