Things I have tried: changing various settings in Obsidian and iOS. searched on the forum but not did not see that anybody mentioned this so I apologize if you are already aware.
What I’m trying to do: I would like to be able to view/use the iOS floating keyboard and obsidian keyboard hand-in-hand. I have to select “hide keyboard” (iOS) to make obsidian’s keyboard show up. Then, when I need to use the iOS keyboard, I have to select “show keyboard” in order to hide the Obsidian keyboard.
Hope this makes sense. Not sure if this is a bug, feature request or user error. But the behavior is time consuming it messes up with my workflow. 
Note: I don’t use the main iPad keyboard because it is too large and fills up too much space.
When using the full-size mobile Apple keyboard, the obsidian keyboard can be visualized above it. However, since the full size mobile keyboard takes up too much space, I always use the floating Apple keyboard. Unfortunately, I notice I am not able to use the floating keyboard and the built-in obsidian keyboard at the same time. I have to either use one or the other, switching between the two. Hope this makes sense. Thank you for your reply.