Apply dictionary renderer to feature layer

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 /* Copyright 2023 Esri  *  * Licensed under the Apache License, Version 2.0 (the "License");  * you may not use this file except in compliance with the License.  * You may obtain a copy of the License at  *  * http://www.apache.org/licenses/LICENSE-2.0  *  * Unless required by applicable law or agreed to in writing, software  * distributed under the License is distributed on an "AS IS" BASIS,  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  * See the License for the specific language governing permissions and  * limitations under the License.  *  */  package com.esri.arcgismaps.sample.applydictionaryrenderertofeaturelayer  import android.os.Bundle import android.util.Log import com.esri.arcgismaps.sample.sampleslib.EdgeToEdgeCompatActivity import androidx.databinding.DataBindingUtil import androidx.lifecycle.lifecycleScope import com.arcgismaps.ApiKey import com.arcgismaps.ArcGISEnvironment import com.arcgismaps.data.Geodatabase import com.arcgismaps.mapping.ArcGISMap import com.arcgismaps.mapping.BasemapStyle import com.arcgismaps.mapping.Viewpoint import com.arcgismaps.mapping.layers.FeatureLayer import com.arcgismaps.mapping.symbology.DictionaryRenderer import com.arcgismaps.mapping.symbology.DictionarySymbolStyle import com.esri.arcgismaps.sample.applydictionaryrenderertofeaturelayer.databinding.ApplyDictionaryRendererToFeatureLayerActivityMainBinding import com.google.android.material.snackbar.Snackbar import kotlinx.coroutines.launch import java.io.File  class MainActivity : EdgeToEdgeCompatActivity() {   // set up data binding for the activity  private val activityMainBinding: ApplyDictionaryRendererToFeatureLayerActivityMainBinding by lazy {  DataBindingUtil.setContentView(this, R.layout.apply_dictionary_renderer_to_feature_layer_activity_main)  }   private val mapView by lazy {  activityMainBinding.mapView  }   private val provisionPath: String by lazy {  getExternalFilesDir(null)?.path.toString() + File.separator + getString(R.string.apply_dictionary_renderer_to_feature_layer_app_name)  }   override fun onCreate(savedInstanceState: Bundle?) {  super.onCreate(savedInstanceState)   // authentication with an API key or named user is  // required to access basemaps and other location services  ArcGISEnvironment.apiKey = ApiKey.create(BuildConfig.ACCESS_TOKEN)  lifecycle.addObserver(mapView)   // create and add a map with a navigation night basemap style  val map = ArcGISMap(BasemapStyle.ArcGISTopographic)  mapView.map = map   // locate the .stylx file in the device  val styleFile = File(provisionPath, getString(R.string.mil2525d_stylx))  // instantiate the dictionarySymbolStyle using the file path  val dictionarySymbolStyle = DictionarySymbolStyle.createFromFile(styleFile.absolutePath)   // locate the .geodatabase file in the device  val geodatabaseFile = File(provisionPath, getString(R.string.militaryoverlay_geodatabase))  // instantiate the geodatabase with the file path  val geodatabase = Geodatabase(geodatabaseFile.path)   lifecycleScope.launch {  // load the dictionary symbol style  dictionarySymbolStyle.load().getOrElse {  return@launch showError("Error loading DictionarySymbolStyle: ${it.message}")  }   // load the geodatabase  geodatabase.load().getOrElse {  showError("Error loading Geodatabase: ${it.message}")  }   geodatabase.featureTables.forEach { geodatabaseFeatureTable ->  // load each geodatabaseFeatureTable and create featureLayer from it  geodatabaseFeatureTable.load().getOrElse {  return@launch showError("Error loading GeodatabaseFeatureTable: ${it.message}")  }  val featureLayer = FeatureLayer.createWithFeatureTable(geodatabaseFeatureTable)  featureLayer.load().getOrElse {  return@launch showError("Error loading FeatureLayer: ${it.message}")  }  // add featureLayer to the map's operational layer  mapView.map?.operationalLayers?.add(featureLayer)   // create dictionaryRenderer using the dictionarySymbolStyle and apply it to the featureLayer's renderer  val dictionaryRenderer = DictionaryRenderer(dictionarySymbolStyle)  featureLayer.renderer = dictionaryRenderer  // get the featureLayer's envelope to set the map viewpoint  val extent = featureLayer.fullExtent  ?: return@launch showError("Error retrieving extent of the feature layer")  mapView.setViewpoint(Viewpoint(extent))  }  }  }   private fun showError(message: String) {  Log.e(localClassName, message)  Snackbar.make(mapView, message, Snackbar.LENGTH_SHORT).show()  } }