Latest Contributions by AsifIsmail

Hello All, We are migrating out android app from 10.12 to 100.5.0, though almost 90% is completed. we have encountered a serious performance problem which leads to ANR and getting stuck of map view. So here is the problem : We have a rest API (normal json based,not feature layer) which expose an array of geo locations.our requirement is such that we have to call this api whenever the user moves or pans the map and draw the overlay of points (from the api response )in the current visible extent of the map using graphics overlay. I have tried viewpointchangelistener() on the map view,the problem with that is the callback gets triggered so often,which results in unwanted api calls.also i have read from the document that this is not right place to do long operation. then i have switched to navigationchangedlistener() and call the api if the map is not currently navigating on the current visible extent, though this has improved the performance considerably, still we have the problem. here is the code that i use :  my navigation changed listener :  _mapView.addNavigationChangedListener( navigationChangedEvent -> { if (!navigationChangedEvent.isNavigating()) { System.out.println("navigating"); if (_mapView.getMapScale() < 50000) { mCurrentEnvelope = _mapView.getVisibleArea().getExtent(); getBusStopsList(); } } }); method which calls the API - getBusStopsList() : private void getBusStopsList() { System.out.println("calling busstops api "); Envelope envelope = mCurrentEnvelope; mBusRouteManager.getBusStopsList( envelope.getXMin(), envelope.getYMin(), envelope.getXMax(), envelope.getYMax(), getLanguage(), new BusRouteManager.BusStopsListener() { @Override public void onSuccess(List<Stop> ptStopList) { System.out.println("recieved " + ptStopList.size() + " stops"); if (ptStopList.size() > 0) { for (int i = 0; i < ptStopList.size(); i++) { busStopHashMap.put(STOP_NAME, ptStopList.get(i).Name); busStopHashMap.put(STOP_ID, ptStopList.get(i).Id); busStopHashMap.put(STATELESS, ptStopList.get(i).Stateless); busStopHashMap.put(STOP_DISPLAY_ID, ptStopList.get(i).DisplayId); busStopHashMap.put(LAT, ptStopList.get(i).getLocation().getX()); busStopHashMap.put(LON, ptStopList.get(i).getLocation().getY()); busStopHashMap.put(OVERLAY_TYPE, BUS_STOPS_OVERLAY); Point graphicPoint = new Point(ptStopList.get(i).getLocation().getX(),                                  ptStopList.get(i).getLocation().getY()); Graphic stopGraphic = new Graphic( graphicPoint, busStopHashMap, busStopSymbol); mBusStopsGraphicsOverlay.getGraphics().add(stopGraphic); } } } @Override public void onFailure(String message) { mDisplayUtils.showToast(message, MapActivity.this, Toast.LENGTH_SHORT); } }); } This method internally makes a retrofit call to the api and onSuccess loops through the list and add the graphic to the overlay. also this triggers lot of Garbage collecting activities and the respective logs gets printed in logCat. when the app gets stuck, because of this issue. i get log saying that its tombstoned I am sure that the issue is because of this method, when i comment this method from executing everything runs smoothly. The same methodology was used in 10.2.9 which was working perfectly fine (we have earlier used scalechangedlistener() ) Please suggest some better approach regarding this issue. ... View more

Hi all, i use arcgis android 100.5 to load and query the layer. but often i get this error : java.util.concurrent.ExecutionException: com.esri.arcgisruntime.ArcGISRuntimeException: Cannot call this method in this context please help,this is my code  public static void queryLayer( ServiceFeatureTable serviceFeatureTable, MapActivity.LayerQueriedListener listener) { serviceFeatureTable.loadAsync(); serviceFeatureTable.setCredential(Utilities.getUserCredentials()); serviceFeatureTable.addDoneLoadingListener( () -> { QueryParameters queryParameters = new QueryParameters(); ListenableFuture<FeatureQueryResult> future = serviceFeatureTable.queryFeaturesAsync( queryParameters); future.addDoneListener( () -> { try { FeatureQueryResult result = future.get(); Iterator<Feature> featureIterator = result.iterator(); if (featureIterator.hasNext()) { Feature feature = featureIterator.next(); listener.onLayerQueryCompleted(feature.getGeometry()); } } catch (ExecutionException | InterruptedException e) { System.out.println("Error querying service table :" + e.getCause()); } }); }); } the issue is so annoying,pls address  ... View more

I have a webservice in which I get list of items as json,i need to create a feature layer locally from the data available in the json, how do i approach this ? i use android sdk 100.5.0  thanks in advance. ... View more

Recently a security audit has been done on our servers and applications which has ArcGIS enterprise installed on it. Our Architecture setup : We have ArcGIS installed on the server, ArcGIS exposes its data via its restful api for its clients which is authenticated with OAuth2 token security (Out of the box ESRI Feature) We have mobile applications for both iOS/Android and web which are built on top of ESRI SDK’s.some of the features in the app consumes data from ArcGIS rest services for their functioning. The audit reported a potential vulnerability stating that one of the rest service disclose sensitive informations including email and phone numbers even for non authenticated users. consider web application, we make use of esri’s proxy files to manage access to our resources for them. the vulnerability is found for the following feature server query through the rest interface, /webapp/proxy/proxy.ashx?https://www.site.com/ArcGIS/rest/services/PublicPortal/xxxxxx/FeatureServer/0/query?f=json&where=EMAIL%20IS%20NOT%20NULL&returnGeometry=true&spatialRel=esriSpatialRelIntersects&outFields=* I understand this as a problem with the ArcGIS rest services, but I’m not sure about this, if some one could, please clarify the following points 1)what could be done to mitigate this problem. Kindly please help. ... View more

Hello All, As of know,i see the Java API examples are demonstrated with either swing or javafx. we're planning to build an map app using vaadin with esri's java api for the web we're not using JS api. vaddin support esri-leaflet via a plugin please give more details on this.. ... View more

Hello, how do i rotate the mapview so that the driving path always become straight to the user(like in google maps) in esri android and ios  ... View more