How to zoom to a query result

FatmaŞenol — Sat, 20 Feb 2016 22:19:58 GMT

Hello,

I'm working on developing an application using ArcGIS Runtime SDK for Android.

I created number of web maps in ArcGIS Online and the application uses these

web maps as source layers.

When I make a query in map viewer in ArcGIS Online, the zoom level is changed and the selected feature(s)

are centered. However, when I try the same thing in my application, the result is not the same.

The following piece of code is written to perform such operation but apparently I missed

something.

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mMapView.setOnStatusChangedListener(new OnStatusChangedListener() {

private static final long serialVersionUID = 1L;

public void onStatusChanged(Object source, STATUS status) {

if (source == URL && status == STATUS.LAYER_LOADED) {

mMapView.centerAt(1.286389, 103.79, false);

mMapView.setScale(1500, false);

}

-------------------------------------------------------------------------------------------------------

It would be great if you could help me on this issue. Thank you in advance.

Re: How to zoom to a query result

WillCrick — Mon, 28 Mar 2016 22:36:19 GMT

I think you might have a few steps missing. First, depending on your layer type, you need to query for the feature (QueryTask is probably the best place to start if its a feature layer or map service layer in your webmap). If this is a predefined query configured in your webmap, you might also need to get parameters from the predefined queries parameter.

Once you have executed a query, you can then use the methods you used above on the mapview (centre at, set scale) to zoom to the features geometry in the query result/s. You may also want to select the feature (if using a feature layer) through the selectGraphics method.

The following samples may help you:

arcgis-runtime-samples-android/QueryCloudFeatureService at master · Esri/arcgis-runtime-samples-android · GitHub

arcgis-runtime-samples-android/QueryTask at master · Esri/arcgis-runtime-samples-android · GitHub

topic How to zoom to a query result in ArcGIS Runtime SDK for Android Questions

How to zoom to a query result

Re: How to zoom to a query result