Lightroom opens in the same way you left it when you closed it. If you're editing a photo, then come back to Lightroom later, you'll still be editing that photo.
If you navigate to the grid view of the "LR Camera Photos" album, you'll be able to see the view that (I think) you're looking for. If you take some photos while in grid view (by tapping the camera icon) you'll come back to the grid view when you exit camera mode.
If you're seeing something different, or asking a different question, please post some screen shots as @Jim Wilde suggested.