Cannot clear layer with feature reduction when app is run in mobile
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2
08-05-2021 10:23 AM
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I am wandering if feature reduction works on mobile devices. When I run my application in Chrome's mobile emulator and load a layer with feature reduction, it loads ok. When I try and clear the layer, however, I get this error:
This doesn't appear to be coming from my code, I commented out everything accept for just simply loading the layer with feature reduction enabled and I still get an error. If I test on my phone the same thing happens, the layer won't clear. This only happens with layers that have feature reduction enabled.
mo._addBoatRampLayer = function() {
if(window.extChange) {
window.extChange.remove();
}
let url = 'https://mydomain/arcgis/rest/services/.../MapServer/1';
loading = document.getElementById("loading-div");
//loading.style.display = "block";
BoatRamps = new FeatureLayer(url, {
id: "Boat Ramps",
featureReduction: {
type: "cluster",
clusterRadius: 100,
},
outFields: ["WaterName", "Name", "Street", "City", "Zip", "Access", "FacType", "Status", "Hours",
"Fees", "RampSurf", "RampCond", "TotalLane", "ParkSurf", "Trailer", "Vehicle", "Restroom"],
opacity: 0.60
});
labelLayer = new GraphicsLayer({
id: "cluster Labels"
})
singleGraphics = new GraphicsLayer({
id: "single-graphics"
});
map.addLayer(singleGraphics, 4);
clustExtentLayer = new GraphicsLayer({
id: "feature-extent-polygon"
});
map.addLayer(clustExtentLayer, 0);
const clSymbol = new SimpleMarkerSymbol ({
"color": [255, 204, 0, 150],
"size": 16,
"type": "esriSMS",
"style": "esriSMSCircle",
"outline": {
"type": "esriSLS",
"color": [128, 102, 0, 230],
"style": "esriSLSSolid",
"width": 3
}
});
brSymbol = new PictureMarkerSymbol ({
"url": "widgets/WaterbodyInfo/images/BoatRamp.png",
"height": 22,
"width": 22,
"type": "esriPMS",
"angle": 0
})
hlSymbol = new PictureMarkerSymbol ({
"url": "widgets/WaterbodyInfo/images/handLaunchRamp.png",
"height": 20,
"width": 18,
"type": "esriPMS",
"angle": 0
})
csSymbol = new PictureMarkerSymbol ({
"url": "widgets/WaterbodyInfo/images/closureSign.png",
"height": 20,
"width": 18,
"type": "esriPMS",
"angle": 0
})
feSymbol = new SimpleFillSymbol (SimpleFillSymbol.STYLE_SOLID, new SimpleLineSymbol (SimpleLineSymbol.STYLE_SOLID,
new Color([139, 204, 0, 1]), 1), new Color([247, 255, 230, 0.85]));
const clusterLabel = new TextSymbol ({
"type": "esriTS",
"color": [0,0,0],
"angle": 0,
"verticalAlignment": "middle",
"xoffset": 0,
"yoffset": 0,
"kerning": true,
"font": {
"family": "Arial",
"size": 10,
"style": "normal",
"weight": "bold",
"decoration": "none"
}
});
if(!rampLabel) {
rampLabel = new Tooltip ({
id: "",
style: "position:absolute; width: 200px; z-index:100; background-color:transparent;"
})
rampLabel.startup();
}
const rend = new SimpleRenderer(clSymbol);
BoatRamps.setRenderer(rend);
map.addLayer(BoatRamps, 2);
window.extChange = map.on('extent-change', lang.hitch(this, function(evt) {
console.log("extent change");
if(!window.appInfo.isRunInMobile) {
if(clustExtentLayer.graphics.length > 0) {
clustExtentLayer.clear();
}
if(singleGraphics) {
singleGraphics.clear();
}
if(labelLayer.graphics.length > 0) {
labelLayer.clear();
}
if(BoatRamps) {
console.log("adding cluster labels");
setTimeout(function() {
_addClusterLabels(BoatRamps, labelLayer, clusterLabel, brSymbol, singleGraphics);
}, 50);
}
}
}));
BoatRamps.on('load', function(evt) {
map.setExtent(BoatRamps.fullExtent, true);
//addMouseEvents(BoatRamps);
checkClustGraph = setInterval(function() {
let cm = BoatRamps._clusterManager;
if(cm) {
const gLen = cm.container.graphics.length;
if(gLen > 0) {
loading.style.display = "none";
clearInterval(checkClustGraph);
setTimeout(function() {
_addClusterLabels(BoatRamps, labelLayer, clusterLabel);
}, 50);
return;
}
}
}, 200);
});
},
Code that is throwing the error:
_clearMapGraphics: function() {
//console.log("clearing map graphics");
const map = this.map;
const gIds = this.map.graphicsLayerIds;
const lyrIds = this.map.layerIds;
//console.log("graphics layer ids ", gIds);
var idArray = [];
if (gIds.length > 0) {
for(let i = 0; i < gIds.length; i++) {
if (gIds[i] != "graphicsLayer1") {
idArray.push(gIds[i]);
}
}
}
if(lyrIds.length > 0) {
for(var i = 0; i < lyrIds.length; i++) {
if (lyrIds[i] != "World_Topo_Map_6790") {
idArray.push(lyrIds[i]);
}
}
}
array.forEach(idArray, function(gId) {
console.log("graphics layer id to remove ", gId);
let targetLayer = map.getLayer(gId);
console.log("target layer ", targetLayer);
map.removeLayer(targetLayer); //get error only when run in mobile
//and only when trying to remove
//cluster layer
})
Just for clarification, I removed Feature Reduction from the layer and I have no errors. Also, the error occurs whether or not I comment out the events or add the additional layers. I just need to know if there is a known issue with feature reduction and mobile devices so I don't waste a lot of time trying to troubleshoot.
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