...The appearance of the activity varies depending on the size of the device's display. On devices with small screens, e.g. on smartphones, the navigation is designed to use the whole available space and selecting an item causes the corresponding preferences to be shown full screen as well. On devices with large screens, e.g. on tablets, the navigation and the preferences of the currently selected item are shown split screen instead. Although the library's API is designed to be similar to the API of the Android SDK's PreferenceActivity, it provides additional possibilities, beyond the functionalities of the original. ...