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ShadowyLynx1866
Inspiring
April 29, 2025
Solved

Can't stack anymore activities in Panel in immersive

Hi,

on v74 it was simple to stack activities into an immersive Panel (just start new activites from the one in the panel). With the v76 it doesn't behave like that anymore, it opens new activities in the home environment. 

Since v74 is based on Android 12 and v76 on Android 14, I assume launching activities on top of the other in a panel may have changed. Sadly couldn't find the solution, nor any clear documentations. 

Can somebody give me a hint 😉 

 

Thx in advance.

BulkywallnutAnswer
Meta Employee
May 6, 2025

Hi!

Thanks for flagging this! We are investigating, and we will get back to you.

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7 replies

BulkywallnutAnswer
Meta Employee
May 6, 2025

Hi!

Thanks for flagging this! We are investigating, and we will get back to you.

    ShadowyLynx1866Author
    Inspiring
    May 12, 2025

    Thx a lot.

    ShadowyLynx1866Author
    Inspiring
    May 14, 2025

    Bulkywallnut here a little project that illustrates the issue -> TestImmersif.zip 

    In this project: ActivityA is launched in a panel in ImmersiveActivity. I'd like to open ActivityB on top of ActivityA within the panel of ImmersiveActivity. (The idea is to reuse a complete android app within a panel in an immersive world).

    It does not work, it opens Activity B in a 2D panel outside the Immersive Activity.

    I hope this little project will help you investigate.

    ShadowyLynx1866Author
    Inspiring
    May 27, 2025

    Bulkywallnut Have you got any updates about this issue, thx ?

    ShadowyLynx1866Author
    Inspiring
    June 10, 2025

    Ping

    pmcgvr
    Meta Employee
    June 12, 2025

    Hey ShadowyLynx1866 we are still looking into this but don't have a fix to report just yet.

      ShadowyLynx1866Author
      Inspiring
      June 24, 2025

      Ok. I found myself a solution. So to everyone who wants to stack activities inside a panel in immersive mode just do as follow. 

      1. Retrieve the android displayId of the panel you want to use to stack activities:

      Didn't find a proper way to do it (especially if you have multiple panels), but a way to do it is to look up for display names starting with "VirtualDevice". If you are using only one panel get the virtual displayId of the panel:

      (getSystemService(Context.DISPLAY_SERVICE) as DisplayManager).displays.firstOrNull { it.name.contains("VirtualDevice") }

      Then when you need to stack a new activity to the panel add some options to 'startActivity' method:

      val options: ActivityOptions = ActivityOptions.makeBasic().setLaunchDisplayId(panelDisplayId)
startActivity(yourIntent, options.toBundle())

      By doing so, activities will stack up onto the ones on your panel.

      If someone has a better and proper solution, please feel free to add here your solution.

      Also, people at Meta you should provide this trick on your documentation. It would help a lot of developer.

      Thx.

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