In my ArcGIS Runtime v100.0 QML app, I'm experiencing a seemingly UI-caused crash which I am attempting to debug. When I run in debug mode, the app crashes with exceptions before ever reaching that UI crash. I am having difficulty debugging it due to my inexperience both with C++ and with the Qt/ArcGIS Runtime SDK architecture.
The exception I receive is:
Exception at 0x7ffca7841f28, code: 0xe06d7363: C++ exception, flags=0x1 (execution cannot be continued) (first chance) in runtimecore!kdu_tile::get_mct_dwt_info
I am dynamically creating/deleting feature layers and tables with this function:
function changeLayer(layerId){ if(featureLayer!==null){ if(featureTable!==null){ featureLayer.featureTable.destroy();
}
featureLayer.destroy();
}
var layerToRemove = null;
map.operationalLayers.forEach(function(layer,layerIndex){ if(layer === featureLayer){ layerToRemove = layerIndex;
}
});
if(layerToRemove !== null){ map.operationalLayers.remove(layerToRemove);
console.log("removed",layerToRemove); }
featureLayer = ArcGISRuntimeEnvironment.createObject("FeatureLayer",{},map); featureLayer.selectFeaturesStatusChanged.connect(selectFeaturesStatusChanged);
var featureTableConfig = { url: featureServerUrl+layerId,
featureRequestMode: Enums.FeatureRequestModeOnInteractionCache,
credential: userCred
};
featureTable = ArcGISRuntimeEnvironment.createObject
("ServiceFeatureTable",featureTableConfig,featureLayer); featureLayer.featureTable = featureTable;
featureLayer.featureTable.loadStatusChanged.connect(function(){ if(featureLayer.featureTable.loadStatus==Enums.LoadStatusLoaded){ actionBar.title = featureLayer.featureTable.tableName;
var tempArr =[];
for(var i=0,l=featureLayer.featureTable.fields.length;i<l;i++){ if(featureLayer.featureTable.fields[i].editable){ tempArr.push(featureLayer.featureTable.fields[i]);
}
}
featureFields = tempArr;
}
});
map.operationalLayers.append(featureLayer);
}
And this is the qml structure of the map on component load:
MapView { id:mapView
anchors.fill: parent
wrapAroundMode: Enums.WrapAroundModeDisabled
attributionTextVisible : false
Map { id: map
// add the BasemapImagery basemap to the map
ArcGISTiledLayer { url: baseMapUrl
}
}
onMouseClicked: { mapView.identifyLayerWithMaxResults
(featureLayer, mouse.x, mouse.y, 22, false, 1000);
}
onIdentifyLayerStatusChanged: { if (identifyLayerStatus === Enums.TaskStatusCompleted) { if (identifyLayerResult.geoElements.length >0){ var geoElem = identifyLayerResult.geoElements[0];
params.objectIds = [geoElem.attributes.attributeValue("objectid")]; featureLayer.selectFeaturesWithQuery(params, Enums.SelectionModeNew);
}
}
}
QueryParameters { id: params
maxFeatures: 1
}
}
This is the part of the changeLayerId function where the crash seems to be occurring:
featureTable = ArcGISRuntimeEnvironment.createObject
("ServiceFeatureTable",featureTableConfig,featureLayer);
