it's possible to make drawers turn into two columns on a wider display very easily, and be able to hide the second one as well
the whole android side drawer thing seems naturally to segue into splitting the screen when it's sideways or bigger. you can put a pin button on it's header bar as well, so it can stay open or automatically close when you use the left bar. i like pins. pins are underrated.
it would be possible to have the drawer pop out but not be modal, for example, so your scrolls still change the left view
From your description, that doesn’t really sound like a drawer. It’s more like a second column that can auto-show and hide. If the right column appears while you can still operate the left one, that means the right column doesn’t overlay the left, it has its own dedicated space.
The question then is: when the right column is hidden, should the left column expand to fill the gap? If it does, the content on the left will keep shifting in height as the width changes, which makes browsing less pleasant. If it doesn’t, then hiding the right column doesn’t seem all that necessary, which is basically how it works now.
