How to disable/enable all user interaction globally?

[SergTomcat]

I have some scenarios where some process is on and I want to prevent user mashing buttons or changing values until process is finished.

If I set IsBusy for Shell, activity indicator appears, but the app is still freely interactible.
I was trying to set IsEnabled, InputTransparent, etc, but nothing works.

Is there anyway to disable and enable input on global level?

Very basic example:

					var shell = Shell.Current;
					shell.IsBusy = true;
					shell.IsEnabled = false;

					await Shell.Current.GoToAsync("AboutPage");

					await Task.Delay(1000);

					shell.IsBusy = false;
					shell.IsEnabled = true;

If you set it on a button, try to mash button and you will get multiple pages opened.