The callback that is invoked when the app is put into the foreground.
typedef void(* foreground_callback)(void *callback_data);
An app is put into the foreground whenever it goes fullscreen. An app is put into the foreground when:
- the user switches to the app
- the device wakes up after it has previously gone into standby mode with the app in the foreground
Last modified: 2013-09-30