topic Re: Attachment Viewer - Basemap gallery or Basemap toggle? in ArcGIS Instant Apps Questions

Attachment Viewer - Basemap gallery or Basemap toggle?

AndreaB_ — Tue, 12 May 2026 17:21:58 GMT

Hi all,

Is there a way to add the Basemap toggle or Basemap gallery widget to the Attachment Viewer Instant app? I swear I saw it a couple of years ago but now it's gone. customize interactivity settings

When users open my app they will see the map zoomed out to the statewide view and I want to use a grey accessible contrast basemap. But when they zoom to a point and view attachments I want them to see the imagery basemap - or at least have the option to turn it on.

Thank you,

Andrea

Re: Attachment Viewer - Basemap gallery or Basemap toggle?

JonM32 — Tue, 12 May 2026 17:36:26 GMT

@AndreaB_

Try switching the app to full setup mode. Changing the basemap may be available that way.

Express and full setup modes—ArcGIS Instant Apps | Documentation

Re: Attachment Viewer - Basemap gallery or Basemap toggle?

AndreaB_ — Tue, 12 May 2026 18:14:23 GMT

oh I turn Express Mode off immediately 🤣

I don't see basemap changer in full setup mode.

Re: Attachment Viewer - Basemap gallery or Basemap toggle?

JonM32 — Wed, 13 May 2026 11:12:20 GMT

@AndreaB_

It must not be an option then.

If you want the ability to do this, you'll likely have to create an experience builder app instead. There might be an express option of one that will let you do the basemap change.

Re: Attachment Viewer - Basemap gallery or Basemap toggle?

RyanLibed — Wed, 13 May 2026 16:15:45 GMT

Thank you for your feedback! We’ve noted your suggestion to include the Basemap Toggle and/or Basemap Gallery in the Attachment Viewer Instant App. Our team will review and discuss this request, and we’ll provide an update as soon as we have more information. We appreciate you using Instant Apps and sharing your thoughts!

Best regards,
Ryan

Re: Attachment Viewer - Basemap gallery or Basemap toggle?

AndreaB_ — Wed, 13 May 2026 16:24:12 GMT

@RyanLibed Thank you. Do you know of a workaround for now? For example, is there a template of an experience builder app that would function like the Attachment Viewer app but would have the basemap widget?

Re: Attachment Viewer - Basemap gallery or Basemap toggle?

SarahMcDonald_Esri — Fri, 29 May 2026 17:34:34 GMT

Hi @AndreaB_

It is possible to create a workaround using Experience Builder. To build this app, I used the Jewelry Box template and from there used the list, map, image and feature info widgets to create a comparable Attachment Viewer app.

Hopefully this is helpful!

Thanks!

Sarah

Re: Attachment Viewer - Basemap gallery or Basemap toggle?

SarahMcDonald_Esri — Thu, 11 Jun 2026 15:07:02 GMT

Hi @AndreaB_

I wanted to provide an update on this request. We are planning to include the basemap gallery tool as an option for Attachment Viewer. This should be available with the next ArcGIS Online update, which occurs in a few weeks.

Please let me know if there are any additional questions.

Thanks!

Sarah