LifecycleService.shutdown() is not working on iOS

[salmonb]

hi,

LifecycleService.shutdown() is not doing anything on iOS.

Here is IOSLifecycleService code indeed:

 @Override public void shutdown() {
        // no-op
    }

Can you please implement it?

FYI the Android version is working better (the application seems to stop), but the application window is appearing again when swiping between open applications, whereas it shouldn't. Should I open a separate issue for this?