GeoDatabase

Amitkhillan — Mon, 15 Aug 2022 11:16:51 GMT

Hi Everyone,

I have query regarding the code snippet below. If we downloaded the data and loading from cache/directory

of mobile can Geodatabse layers load over Map if there is no internet connection available on device.

Please post your suggestions:

 map = ArcGISMap(
            Basemap.Type.IMAGERY_WITH_LABELS_VECTOR,
            23.9898,67.09090,14)
        // create path to local geodatabase
        var anglePointGeoDataBase =
            Geodatabase(externalCacheDir.toString() + "/" +id + "/" + "filename")
        // create a new geodatabase from local path
       var mGeodatabase = Geodatabase(anglePointGeoDataBase.toString())

        // load the geodatabase
        mGeodatabase.loadAsync()

        // create feature layer from geodatabase and add to the map
        mGeodatabase.addDoneLoadingListener(Runnable {
            if (mGeodatabase.getLoadStatus() == LoadStatus.LOADED) {
                // access the geodatabase's feature table Trailheads
                val geodatabaseFeatureTable: GeodatabaseFeatureTable =
                    mGeodatabase.getGeodatabaseFeatureTable("Trailheads")
                geodatabaseFeatureTable.loadAsync()
                // create a layer from the geodatabase feature table and add to map
                val featureLayer = FeatureLayer(geodatabaseFeatureTable)
                featureLayer.addDoneLoadingListener {
                    if (featureLayer.loadStatus == LoadStatus.LOADED) {
                        // set viewpoint to the feature layer's extent
                        mapView.setViewpointAsync(Viewpoint(featureLayer.fullExtent))
                    } else {
                        Toast.makeText(
                            this@SurveyMapActivity,
                            "Feature Layer failed to load!",
                            Toast.LENGTH_LONG
                        )
                            .show()
                        Log.e("TAG", "Feature Layer failed to load!")
                    }
                }
                // add feature layer to the map
                mapView.getMap().getOperationalLayers().add(featureLayer)
            } else {
                Toast.makeText(this@SurveyMapActivity, "Geodatabase failed to load!", Toast.LENGTH_LONG)
                    .show()
                Log.e("TAG", "Geodatabase failed to load!")
            }
        })

topic GeoDatabase in ArcGIS Runtime SDK for Android Questions

GeoDatabase