How to run Waydroid with full UI on Sway?

[jaruga (Jun Aruga)]

I installed the Waydroid app on Gnome on Fedora Linux 42 on my Framework Laptop 12 (2-in-1 laptop), following the installation page below.

Install Instructions | Waydroid

I installed the wayland RPM.

$ sudo dnf install waydroid

$ rpm -q waydroid
waydroid-1.5.4-1.fc42.noarch

I clicked the Waydroid app on Gnome, and I entered the System OTA, Vendor OTA, Android Type: GAPPS on the popped-up dialog, then clicked the “Download” button.

I certified my device for the Google Play Store, following this document.

I can open Waydroid by clicking the Waydroid icon on Gnome without any problems.

However, how to run the equivalent command to open Wayland with full UI on the Sway window manager? I assumed that the equivalent command was waydroid show-full-ui. But when I ran the following command, it showed the error “RuntimeError: Already tracking a session”.

$ waydroid show-full-ui
[15:28:49] Starting waydroid session
[15:28:49] RuntimeError: Already tracking a session

As a reference, below is the log.

$ waydroid log
(081401) [15:20:20] % tail -n 60 -F /var/lib/waydroid/waydroid.log
(081401) [15:20:20] *** output passed to waydroid stdout, not to this log ***
(082175) [15:28:49] Starting waydroid session
(082175) [15:28:49] org.freedesktop.DBus.Python.RuntimeError: Traceback (most recent call last):
  File "/usr/lib64/python3.13/site-packages/dbus/service.py", line 712, in _message_cb
    retval = candidate_method(self, *args, **keywords)
  File "/usr/lib/waydroid/tools/actions/container_manager.py", line 31, in Start
    do_start(self.args, session)
    ~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/waydroid/tools/actions/container_manager.py", line 133, in do_start
    raise RuntimeError("Already tracking a session")
RuntimeError: Already tracking a session

(082175) [15:28:49] RuntimeError: Already tracking a session
(082632) [15:33:43] % tail -n 60 -F /var/lib/waydroid/waydroid.log
(082632) [15:33:43] *** output passed to waydroid stdout, not to this log ***

Thank you for your help!

[jaruga (Jun Aruga)]

I found a clue to solve this issue.

First, I rebooted Fedora Linux, then I ran the following command. And the Waydroid was launched successfully, like picture 1. So, that means after I started the Waydroid and closed the Waydroid app window, did I need to explicitly run a command to stop the Waydroid?

$ waydroid show-full-ui
[15:48:59] Starting waydroid session
[gbinder] Service manager /dev/binder has appeared
[15:49:18] Android with user 0 is ready

Picture 1

I found another issue. When I resized the window of the Waydroid, the Waydroid’s window was not updated, like picture 2. So, do I need to run a command to refresh or update the window size of the Waydroid?

Picture 2

[ilikelinux]

You might have to check if you can update android , while it is running.

Do you have the same issue in Gnome?