Basemaps and layers are available on the Android App right from the map view. To get to the map view:
Select the app that you are going to work with from the apps list
If you do not see the map view, select the 'Map View' option on the lower left corner of the screen.
Accessing the Basemaps and Layers
From the map view, you will be able to select the basemaps and layers button.
Basemaps
Once you click on the basemaps and layers button, the available options will be displayed at the bottom of the screen. From here you can select between the different basemaps available, just tap the desired one.
Custom Layers
Right below the Basemaps you will find your custom layers. These could be uploaded directly to the device, added to Fulcrum through the web app, or added by authenticating with ArcGIS. From this section, you can enable, disable, remove, change the order of your layers, and Add a New Layer. Multiple layers can be arranged on top of one another. You even have the option to download some layers for offline access.
To enable a layer, just tap the checkbox on the left side of the Layer name. You can see which layers are enabled by looking for the check mark on the left side of the layer row. To disable a layer, tap the checkbox again to uncheck the box.
To arrange the order of the layers, simply drag the layers by tapping the two horizontal lines into the desired position.
Right below the layers, you will also have the option to 'Connect to ArcGIS' to access your Feature Service Layers if you haven't already.
To learn more on this topic, please check out the following article:
Downloading Layers for Offline Use
Both MBTiles Layers and ArcGIS Feature Service Layers can be used offline.
To download an MBTiles layer, click on the 'Download' button just below the layer title and description.
To download a Feature Service Layer, select the 'Make Available Offline' button under the layer title and description.
We recommend that you download your layers in advance when your device is connected to a WiFi network or with a strong cellular connection.
After the layer has downloaded, you will see a green message that says that your layer is "Available offline".
Notes
The included Basemaps options are Streets, Satellite, Hybrid (a combination of satellite and streets), and Terrain.
The mobile apps have support for three of the custom map layer types available. MBTiles and Feature Service Layers can be used for offline and online use, Tile XYZ sources can be used for online layers.
MBTile layers can either be uploaded directly to the device or added to Fulcrum through the web app.