topic Re: IdentifyLayersAsync never completes if 1 layer has refresh interval in ArcGIS Runtime SDK for Android Questions

IdentifyLayersAsync never completes if 1 layer has refresh interval

EirikH — Mon, 08 Apr 2024 11:17:27 GMT

We have a map with ~10 feature layers. We recently wanted one of the layers to auto refresh every 20 seconds so we used featureLayer.setRefreshInterval on that layer.

If we do that, our mapView.identifyLayersAsync done listener is never triggered.

ListenableFuture<List<IdentifyLayerResult>> identifyTask = mMapView .identifyLayersAsync(new android.graphics.Point((int) e.getX(), (int) e.getY()), 22.0, false, 4); identifyTask.addDoneListener(() -> { try { boolean foundItem = false; // <-- HERE List<IdentifyLayerResult> results = identifyTask.get();

If we have the applicable layer visible, trigger identify and then hide the layer, the listener is triggered immediately. If we load the app without setting refresh interval on the layer it works.

We have the exact same code and layers on the iOS side as well, and there identify works as expected with refreshInterval.

Any thoughts?

Edit: We are running 100.15.4, I tried downgrading to 100.13.0 (oldest our app can run) with the same results.

Re: IdentifyLayersAsync never completes if 1 layer has refresh interval

EirikH — Fri, 19 Apr 2024 12:51:03 GMT

Anyone from Esri seeing the same or able to test?

Re: IdentifyLayersAsync never completes if 1 layer has refresh interval

RamaChintapalli — Tue, 23 Apr 2024 22:11:37 GMT

Hi
I have tried to set refresh interval on the FeatureLayer in this sample and I couldn't reproduce the problem i.e., the identify seems to work even with the refresh interval set. Can you use the sample and modify it to reproduce the problem? If not, we might have to look into the specifics of the layers being used in your map.

Thanks
Rama

Re: IdentifyLayersAsync never completes if 1 layer has refresh interval

EirikH — Mon, 29 Apr 2024 06:40:38 GMT

Thanks for testing and the suggestion, I will try to reproduce. I'm using java and that sample was Kotlin, will try to use the java sample in my testing.

Re: IdentifyLayersAsync never completes if 1 layer has refresh interval

EirikH — Thu, 08 Aug 2024 11:25:12 GMT

Thanks again for your reply, @RamaChintapalli.

So the issue was actually a very nice gotcha in the runtime SDK.

For iOS the refreshInterval property on a AGSFeatureLayer is specified in seconds, but for Android the setRefreshInterval method expects milliseconds. We have a shared config for both plattforms in our app so it was set to 20 (seconds) on iOS and thus 20 milliseconds on Android which seem to have caused this 😄

Android: https://developers.arcgis.com/android/api-reference/reference/com/esri/arcgisruntime/layers/FeatureLayer.html#setRefreshInterval(long)
iOS: https://developers.arcgis.com/ios/api-reference/interface_a_g_s_feature_layer.html#ae8e926cc4aa917fbf383156fb28fa857