Display drawing status

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/* Copyright 2016 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.arcgisruntime.sample.displaydrawingstatus;

import android.os.Bundle;
import android.view.View;
import android.widget.ProgressBar;

import androidx.appcompat.app.AppCompatActivity;
import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.data.ServiceFeatureTable;
import com.esri.arcgisruntime.geometry.Envelope;
import com.esri.arcgisruntime.geometry.SpatialReferences;
import com.esri.arcgisruntime.layers.FeatureLayer;
import com.esri.arcgisruntime.mapping.ArcGISMap;
import com.esri.arcgisruntime.mapping.BasemapStyle;
import com.esri.arcgisruntime.mapping.Viewpoint;
import com.esri.arcgisruntime.mapping.view.DrawStatus;
import com.esri.arcgisruntime.mapping.view.MapView;

public class MainActivity extends AppCompatActivity {

  private MapView mMapView;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // authentication with an API key or named user is required to access basemaps and other
    // location services
    ArcGISRuntimeEnvironment.setApiKey(BuildConfig.API_KEY);

    final ProgressBar progressBar = findViewById(R.id.progressBar);

    // inflate MapView from layout
    mMapView = findViewById(R.id.mapView);
    // create a map with the Basemap Style topographic
    ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);

    // create a feature table from a service url
    ServiceFeatureTable svcFeaturetable = new ServiceFeatureTable(getString(R.string.service_feature_table_url));
    // create a feature layer
    FeatureLayer featureLayer = new FeatureLayer(svcFeaturetable);
    // add feature layer to map
    map.getOperationalLayers().add(featureLayer);

    // set the map to be displayed in this view
    mMapView.setMap(map);
    // create an envelope
    Envelope targetExtent = new Envelope(-13639984.0, 4537387.0, -13606734.0, 4558866.0,
        SpatialReferences.getWebMercator());
    // use envelope to set initial viewpoint
    Viewpoint initViewpoint = new Viewpoint(targetExtent);
    // set the initial viewpoint in the map
    mMapView.setViewpoint(initViewpoint);

    //[DocRef: Name=Monitor map drawing, Category=Work with maps, Topic=Display a map]
    mMapView.addDrawStatusChangedListener(drawStatusChangedEvent -> {
      if (drawStatusChangedEvent.getDrawStatus() == DrawStatus.IN_PROGRESS) {
        progressBar.setVisibility(View.VISIBLE);
      } else if (drawStatusChangedEvent.getDrawStatus() == DrawStatus.COMPLETED) {
        progressBar.setVisibility(View.INVISIBLE);
      }
    });
    //[DocRef: END]
  }

  @Override
  protected void onPause() {
    super.onPause();
    mMapView.pause();
  }

  @Override
  protected void onResume() {
    super.onResume();
    mMapView.resume();
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    mMapView.dispose();
  }
}