iOS Simulator custom City Run outside Xcode

I'm currently developing a Flutter app using VSCode and the Xcode iOS-Simulator.

While developing, I would like to simulate a "City Run" using custom locations instead of the pre-loaded iOS City Run-locations.

I was able to add a custom city Run to a Xcode-Project (using a .gpx-file), but could only use it while Debugging the Xcode-Project.

Now, I couldn't figure out a way to change or update the City-Run locations in a project not running in Xcode, but VSCode.

Do any of you have an idea on how to either:

Add locations to the iOS Simulator without using an Xcode-project
Add locations to the simulator using Xcode to permanently use those inside the simulator (not only while debugging inside Xcode)
update the default locations of the City Run used by the iOS Simulator

I'm currently running:

Mac OS 11.1 (Big Sur)
MacBook Pro (13-inch, M1, 2020)
Flutter 1.22.6
Simulator: iPhone 12 Pro Max - iOS 14.3

Thank you very much guys! Any help will be highly appreciated!🙏

Cheers, Tobi

Solution

For now I found workaround which might not be beautiful, but it does the job for me.

I followed along this article and wrote a little AppleScript to regularly update the current location and simulate a "City Run".

Although it has a couple of downsides (e.g. Simulator must be the frontmost process) it does the job for simulating the City Run during development for me.

Still, if anyone comes up with a better solution, please let me know.

This is what the script does look like for now:

on run
    tell application "System Events"
        tell process "Simulator"
            set frontmost to true
            click menu item "Custom Location…" of menu of menu item "Location" of menu "Features" of menu bar 1
            set popup to window "Custom Location"
            set value of text field 1 of popup to "<lat here>"
            set value of text field 2 of popup to "<long here>"
            click button "OK" of popup
            delay 2
            -- (Further locations here)
        end tell
    end tell
end run

Cheers,

Tobi