feature layer from feature collection not rendering

Town_ofSnowflake — Mon, 16 Jul 2012 05:57:45 GMT
I've created a feature layer from a feature collection. The feature collection is created from a cursor from a query on a sqlite table. The feature layer is not appearing on the map. The following method is called by the onCreate() method. To determine the layer definition, I appended "/?f=json" to the layer's rest url and then replaced all " with \". Also, I can add an ArcGISFeatureLayer from a map service in the onCreate method.
public void updateEventsLayers(){
     String layerDefinition = "{\"geometryType\":\"esriGeometryPoint\",\"drawingInfo\":{\"renderer\":{\"type\":\"uniqueValue\",\"field1\":\"Species\",\"field2\" : null,\"field3\" : null,\"fieldDelimiter\":\", \",\"defaultSymbol\" : null,\"defaultLabel\":\"\u003call other values\u003e\",\"uniqueValueInfos\":[{\"value\":\"Dolphin\",\"label\":\"Dolphin\",\"description\":\"\",\"symbol\":{\"type\":\"esriPMS\",\"url\":\"7A88B187\",\"imageData\":\"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\",\"contentType\":\"image/png\",\"color\" : null,\"width\":18,\"height\":18.75,\"angle\":0,\"xoffset\":0,\"yoffset\":0}},{\"value\":\"Whale\",\"label\":\"Whale\",\"description\":\"\",\"symbol\":{\"type\":\"esriPMS\",\"url\":\"71DC084\",\"imageData\":\"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\",\"contentType\":\"image/png\",\"color\" : null,\"width\":18,\"height\":18.75,\"angle\":0,\"xoffset\":0,\"yoffset\":0}}]},\"transparency\":0,\"labelingInfo\" : null},\"displayField\":\"Species\",\"fields\":[{\"name\":\"OBJECTID\",\"type\":\"esriFieldTypeOID\",\"alias\":\"OBJECTID\"},{\"name\":\"eventType\",\"type\":\"esriFieldTypeSmallInteger\",\"alias\":\"eventType\"},{\"name\":\"DATE\",\"type\":\"esriFieldTypeDate\",\"alias\":\"DATE\",\"length\":36},{\"name\":\"eventID\",\"type\":\"esriFieldTypeDouble\",\"alias\":\"eventID\"},{\"name\":\"Species\",\"type\":\"esriFieldTypeString\",\"alias\":\"Species\",\"length\":50},{\"name\":\"Type\",\"type\":\"esriFieldTypeString\",\"alias\":\"Type\",\"length\":50},{\"name\":\"count_\",\"type\":\"esriFieldTypeSmallInteger\",\"alias\":\"count_\"},{\"name\":\"behavior\",\"type\":\"esriFieldTypeString\",\"alias\":\"behavior\",\"length\":50},{\"name\":\"distance\",\"type\":\"esriFieldTypeString\",\"alias\":\"distance\",\"length\":50},{\"name\":\"Shape\",\"type\":\"esriFieldTypeGeometry\",\"alias\":\"Shape\"}],\"typeIdField\":\"eventType\",\"types\":[{\"id\":0,\"name\":\"Begin Survey\",\"domains\":{}},{\"id\":1,\"name\":\"Position Update\",\"domains\":{}},{\"id\":2,\"name\":\"Observation\",\"domains\":{}},{\"id\":3,\"name\":\"End Survey\",\"domains\":{}}],\"relationships\":[],\"capabilities\":\"Map,Query,Data\"}";
     
     ArrayList<Item> items = new ArrayList<Item>();
     ArrayList<Graphic> grList = new ArrayList<Graphic>();

        
     SpatialReference webMercator = SpatialReference.create(102100);
     mCursor = mDbManager.fetchAll();
     int count = mCursor.getCount();
     String colCount = "" + mCursor.getColumnCount();
     int i = 0;
     
     
     mCursor.moveToFirst();
    
     
    
     while (mCursor.isAfterLast() == false){
      Item item = new Item();
      
      item.setID(mCursor.getInt(0));
      item.setEventType(mCursor.getInt(2));
      item.setLatitude(mCursor.getDouble(3));
      item.setLongitude(mCursor.getDouble(4));
      item.setSpecies(mCursor.getString(5));
      item.setType(mCursor.getString(6));
   
         
      
     
   items.add(item);
      i= i + 1;
      mCursor.moveToNext();
     }
     
    
     for (Item item : items) {
   
   Point pointwm = GeometryEngine.project(item.getLongitude(),
     item.getLatitude(), webMercator);
 
   
   Graphic gr = new Graphic(pointwm, null, null, null);
   grList.add(gr);

  }

     
     Graphic[] grs = new Graphic[grList.size()];
  grs = grList.toArray(grs);
  FeatureSet fs = new FeatureSet();
  fs.setGraphics(grs);
 
     
     Options options = new Options();
  options.mode = MODE.SNAPSHOT;
  ArcGISFeatureLayer fLayer = new ArcGISFeatureLayer(layerDefinition, fs,
    options);
     
     map.addLayer(fLayer);
          
     }
topic feature layer from feature collection not rendering in ArcGIS Runtime SDK for Android Questions

feature layer from feature collection not rendering
