Create and save map

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Create and save a map as a web map item to an ArcGIS portal.

Image of create and save map

Use case

Maps can be created programmatically in code and then serialized and saved as an ArcGIS portal item. In this case, the portal item is a web map which can be shared with others and opened in various applications and APIs throughout the platform, such as ArcGIS Pro, ArcGIS Online, the JavaScript API, Collector, and Explorer.

How to use the sample

When you run the sample, you will be challenged for an ArcGIS Online login. Enter a username and password for an ArcGIS Online named user account (such as your ArcGIS for Developers account). Then, choose the basemap and layers for your new map. To save the map, add a title, tags, description (optional), and a folder on your portal (you will need to create one in your portal's My Content section if you don't already have one). Tap the Save button to save the map to the chosen folder.

How it works

  1. Set a DefaultAuthenticationChallengeHandler to the app's AuthenticationManager.
  2. Create a new Portal and load it to invoke the authentication challenge.
  3. Access the PortalUserContent with portal.getUser().fetchContentAsync().get(), to get the user's list of portal folders with portalUserContent.getFolders().
  4. Create an ArcGISMap with a BasemapStyle and a few operational layers.
  5. Call map.saveMapAsAsync() to save a new ArcGISMap with the specified title, tags, and folder to the portal.

Relevant API

  • ArcGISMap
  • Portal

Additional information

In this sample, an API key is set directly on Basemap objects rather than on the whole app using the ArcGISRuntimeEnvironment class. This is useful in a scenario where an individual developer is part of an organization within ArcGIS Online that uses an API key to access a range of BasemapStyles. In the case that an individual member of the organization wants to save a map locally to their account, and not that of the organization, they can set the organization's API key on the basemap, and log in to their own account when challenged. The individual can then save the final map to their own ArcGIS Online account.

Tags

ArcGIS Online, ArcGIS Pro, portal, publish, share, web map

Sample Code

MainActivity.java
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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.createandsavemap;

import android.content.DialogInterface;
import android.content.res.Configuration;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.Toast;

import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.view.GravityCompat;
import androidx.drawerlayout.widget.DrawerLayout;

import com.esri.arcgisruntime.concurrent.ListenableFuture;
import com.esri.arcgisruntime.layers.ArcGISMapImageLayer;
import com.esri.arcgisruntime.layers.ArcGISTiledLayer;
import com.esri.arcgisruntime.loadable.LoadStatus;
import com.esri.arcgisruntime.mapping.ArcGISMap;
import com.esri.arcgisruntime.mapping.Basemap;
import com.esri.arcgisruntime.mapping.BasemapStyle;
import com.esri.arcgisruntime.mapping.Viewpoint;
import com.esri.arcgisruntime.mapping.view.MapView;
import com.esri.arcgisruntime.portal.Portal;
import com.esri.arcgisruntime.portal.PortalFolder;
import com.esri.arcgisruntime.portal.PortalItem;
import com.esri.arcgisruntime.portal.PortalUserContent;
import com.esri.arcgisruntime.security.AuthenticationChallengeHandler;
import com.esri.arcgisruntime.security.AuthenticationManager;
import com.esri.arcgisruntime.security.DefaultAuthenticationChallengeHandler;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class MainActivity extends AppCompatActivity {

  private static final String TAG = MainActivity.class.getSimpleName();

  private MapView mMapView;

  // objects that implement Loadable must be class fields to prevent being garbage collected before loading
  private Portal mPortal;

  private List<PortalFolder> mPortalFolders;

  private DrawerLayout mDrawerLayout;

  private ListView mBasemapListView;

  private ListView mLayerListView;

  private CharSequence mDrawerTitle;

  private ActionBarDrawerToggle mDrawerToggle;

  private Spinner mFolderSpinner;

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

    // set up an authentication handler to take credentials for access to arcgis.com
    AuthenticationChallengeHandler handler = new DefaultAuthenticationChallengeHandler(this);
    AuthenticationManager.setAuthenticationChallengeHandler(handler);

    mDrawerTitle = getTitle();
    // inflate MapView from layout
    mMapView = findViewById(R.id.mapView);
    // create a map with Topographic Basemap
    Basemap streetsBasemap = new Basemap(BasemapStyle.ARCGIS_STREETS);
    ArcGISMap map = new ArcGISMap(streetsBasemap);
    map.addDoneLoadingListener(() -> {
      if (map.getLoadStatus() != LoadStatus.LOADED) {
        String error = "Error loading map: " + map.getLoadError().getCause().getMessage();
        Toast.makeText(this, error, Toast.LENGTH_SHORT).show();
        Log.e(TAG, error);
      }
    });
    // set the map to be displayed in this view
    mMapView.setMap(map);
    mMapView.setViewpoint(new Viewpoint(48.354388, -99.998245, 100000000));

    // inflate the Basemap and Layer list views
    mBasemapListView = findViewById(R.id.basemap_list);
    mLayerListView = findViewById(R.id.layer_list);
    mDrawerLayout = findViewById(R.id.drawer_layout);

    ArcGISTiledLayer tiledLayer = new ArcGISTiledLayer(
        "https://sampleserver6.arcgisonline.com/arcgis/rest/services/WorldTimeZones/MapServer");
    ArcGISMapImageLayer mapImageLayer = new ArcGISMapImageLayer(
        "https://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer");

    // create base map array and set it to a list view adapter
    String[] basemapTiles = getResources().getStringArray(R.array.basemap_array);
    mBasemapListView
        .setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_list_item_single_choice,
            basemapTiles));
    mBasemapListView.setItemChecked(0, true);

    // create operation layers array and set it to a list view adapter
    String[] operationalLayerTiles = getResources().getStringArray(R.array.operational_layer_array);
    mLayerListView
        .setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_list_item_multiple_choice,
            operationalLayerTiles));

    // creates a drawer to handle display of layers on the map
    createDrawer(tiledLayer, mapImageLayer);

    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setHomeButtonEnabled(true);
  }

  /**
   * Creates a drawer to handle display of layers on the map.
   *
   * @param tiledLayer    to display on the map
   * @param mapImageLayer to display on the map
   */
  private void createDrawer(ArcGISTiledLayer tiledLayer, ArcGISMapImageLayer mapImageLayer) {

    ArcGISMap map = mMapView.getMap();
    // set actions for drawer state - close/open
    mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.app_name,
        R.string.app_name) {
      // if the drawer is closed, get the checked items from LayerListView and add the checked layer
      @Override
      public void onDrawerClosed(View view) {
        getSupportActionBar().setTitle(getTitle());
        map.addDoneLoadingListener(() -> {
          if (map.getLoadStatus() == LoadStatus.LOADED) {
            // if both items are checked, add them
            if (mLayerListView.getCheckedItemCount() > 1) {
              map.getOperationalLayers().clear();
              map.getOperationalLayers().add(tiledLayer);
              map.getOperationalLayers().add(mapImageLayer);
            } else { // if any one item is checked, add as layer
              if (mLayerListView.isItemChecked(0)) {
                map.getOperationalLayers().clear();
                map.getOperationalLayers().add(tiledLayer);
              } else if (mLayerListView.isItemChecked(1)) {
                map.getOperationalLayers().clear();
                map.getOperationalLayers().add(mapImageLayer);
              } else {
                map.getOperationalLayers().clear();
              }
            }
          }
        });

        invalidateOptionsMenu();
      }

      @Override
      public void onDrawerOpened(View drawerView) {
        getSupportActionBar().setTitle(mDrawerTitle);
        // calling onPrepareOptionsMenu() to hide action bar icons
        invalidateOptionsMenu();
      }
    };

    // handle clicks in the drawer
    mBasemapListView.setOnItemClickListener((parent, view, position, id) -> {
      mMapView.getMap().getOperationalLayers().clear();
      switch (position) {
        case 0:
          mMapView.getMap().setBasemap(new Basemap(BasemapStyle.ARCGIS_STREETS));
          break;
        case 1:
          mMapView.getMap().setBasemap(new Basemap(BasemapStyle.ARCGIS_IMAGERY));
          break;
        case 2:
          mMapView.getMap().setBasemap(new Basemap(BasemapStyle.ARCGIS_TOPOGRAPHIC));
          break;
        case 3:
          mMapView.getMap().setBasemap(new Basemap(BasemapStyle.ARCGIS_OCEANS));
          break;
        default:
          Toast.makeText(this, R.string.unsupported_option, Toast.LENGTH_SHORT).show();
      }
    });

    mDrawerToggle.setDrawerIndicatorEnabled(true);
    mDrawerLayout.addDrawerListener(mDrawerToggle);
  }

  /**
   * Shows the save map dialog allowing the user to enter title, tags, description and folder for
   * saving of their map.
   */
  private void showSaveMapDialog() {

    // inflate save map dialog layout
    LayoutInflater inflater = LayoutInflater.from(this);
    View saveMapDialogView = inflater.inflate(R.layout.save_map_dialog, null, false);

    // get references to edit text views
    EditText titleEditText = saveMapDialogView.findViewById(R.id.titleEditText);
    EditText tagsEditText = saveMapDialogView.findViewById(R.id.tagsEditText);
    EditText descriptionEditText = saveMapDialogView.findViewById(R.id.descriptionEditText);
    mFolderSpinner = saveMapDialogView.findViewById(R.id.folderSpinner);

    // create a portal to arcgis
    mPortal = new Portal("https://www.arcgis.com", true);
    mPortal.addDoneLoadingListener(() -> {
      if (mPortal.getLoadStatus() == LoadStatus.LOADED) {
        try {
          // get the users list of portal folders
          PortalUserContent portalUserContent = mPortal.getUser().fetchContentAsync().get();
          mPortalFolders = portalUserContent.getFolders();
          // get a list of the user's portal folder titles
          List<String> portalFolderTitles = new ArrayList<>();
          portalFolderTitles.add("No Folder");
          for (PortalFolder portalFolder : mPortalFolders) {
            portalFolderTitles.add(portalFolder.getTitle());
          }
          // add the list of portal folder titles to a spinner
          ArrayAdapter<String> adapter = new ArrayAdapter<>(this,
              android.R.layout.simple_spinner_item, portalFolderTitles);
          adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
          mFolderSpinner.setAdapter(adapter);
        } catch (Exception e) {
          String error = "Error fetching content from portal item: " + e.getCause().getMessage();
          Toast.makeText(this, error, Toast.LENGTH_LONG).show();
          Log.e(TAG, error);
        }
      }
    });
    mPortal.loadAsync();

    // build the dialog
    AlertDialog saveMapDialog = new AlertDialog.Builder(this)
        .setView(saveMapDialogView)
        .setPositiveButton(R.string.save_map, null)
        .setNegativeButton(R.string.cancel, null)
        .show();

    // click handling for the save map button
    Button saveMapButton = saveMapDialog.getButton(DialogInterface.BUTTON_POSITIVE);
    saveMapButton.setOnClickListener(v -> {
      Iterable<String> tags = Arrays.asList(tagsEditText.getText().toString().split(","));
      // make sure the title edit text view has text
      if (titleEditText.getText().length() > 0) {
        // check if a folder was selected
        if (mFolderSpinner.getSelectedItemPosition() <= 0) {
          // if no folder was selected, just pass null for portalFolder argument
          saveMap(titleEditText.getText().toString(), tags,
              descriptionEditText.getText().toString(), null);
        } else {
          // call save map passing in title, tags, description and portal
          saveMap(titleEditText.getText().toString(), tags,
              descriptionEditText.getText().toString(),
              mPortalFolders.get(mFolderSpinner.getSelectedItemPosition() - 1));
        }
        saveMapDialog.dismiss();
      } else {
        Toast.makeText(this, "A title is required to save your map.", Toast.LENGTH_LONG).show();
      }
    });

    // click handling for the cancel button
    Button cancelButton = saveMapDialog.getButton(DialogInterface.BUTTON_NEGATIVE);
    cancelButton.setOnClickListener(v -> saveMapDialog.dismiss());
  }

  /**
   * Save the map to that portal.
   *
   * @param title        of the map
   * @param tags         related to the map
   * @param description  of the map
   * @param portalFolder where the map should be saved
   */
  private void saveMap(String title, Iterable<String> tags, String description,
      PortalFolder portalFolder) {
    // call save as async and pass portal info, as well as details of the map including title, tags and description
    ListenableFuture<PortalItem> saveAsAsyncFuture = mMapView.getMap()
        .saveAsAsync(mPortal, portalFolder, title, tags, description, null, true);
    saveAsAsyncFuture.addDoneListener(
        () -> Toast.makeText(this, "Map saved to portal!", Toast.LENGTH_LONG).show());
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_main, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    if (item.getItemId() == R.id.action_save) {
      showSaveMapDialog();
    }
    return mDrawerToggle.onOptionsItemSelected(item) || super.onOptionsItemSelected(item);
  }

  /***
   * Called when invalidateOptionsMenu() is triggered
   */
  @Override
  public boolean onPrepareOptionsMenu(Menu menu) {
    // if nav drawer is opened, hide the action items
    menu.findItem(R.id.action_save).setVisible(!mDrawerLayout.isDrawerOpen(GravityCompat.START));

    return super.onPrepareOptionsMenu(menu);
  }

  @Override
  public void setTitle(CharSequence title) {
    getActionBar().setTitle(title);
  }

  /**
   * Sync the state of the drawer toggle
   */
  @Override
  protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    // Sync the toggle state after onRestoreInstanceState has occurred.
    mDrawerToggle.syncState();
  }

  @Override
  public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    // Pass any configuration change to the drawer toggle
    mDrawerToggle.onConfigurationChanged(newConfig);
  }

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

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

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

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