An image in the patent documentation shows an iPhone camera app offering settings for “dry,” “wet,” and “underwater” modes. Depending on the mode, changes are made to the camera UI. For example, in wet mode, some features are removed from the UI while in underwater mode, some controls are replaced with extra-large buttons. They are easier to activate underwater but have restricted functionality.
Image from the patent shows an iPhone in wet mode
The phone’s display will show the current depth of the device in order for the user to keep it within the limits of the handset’s water resistance. Apple will have to take care with the size expansion and the location changes of camera UI buttons to make sure that users do not get confused.
Apple receives so many patents over the course of a year and not every one results in new technology that is implemented right away. It is not clear whether Apple will be interested in implementing this patent right away.