I can escape the warehouse or the detail page of buildings using the "back" button. But when I klick on "mobilise army" or "collect resources" under "my land" I cant escape the pop up menus with the back button, instead I have to tap left, right, above or under the pop up to close it. Can you make it possible to close them using the back button?
I don't know why, but I am pretty used to the back button to close or escape the most things.