I am using my real device and the Xcode Preview which works pretty fine. I do not want to show an empty canvas pane all the time. But when hiding the canvas, the preview pauses. I tried the refresh shortkey (OPT + CMD + P), too, while canvas is invisible.
Why must the canvas be visible even there is no content besides "Previewing on iPhone from..." Info?
I hope there is a workaround to hide the canvas while pushing to real devices.