Abstract: A device is configured to generate and present a lock screen graphical user interface while the device is in a locked state in which, for example, the device displays a lock screen to a user of the device. The device is further configured to detect a current activity of the user while the device is in its locked state. This detection may be based on context data generated by a sensor within the device. The device is further configured to select an activity icon from a set of activity icons based on the detected current activity of the user. The device then causes the selected activity icon to be displayed while the device is in its locked state. The selected and displayed activity icon is operable to cause display of a pop-up window that corresponds to the selected activity icon while the device is still in its locked state.

Abstract: A machine can be configured to provide icon animation based on an activity detected by a device. The configured machine animates an icon displayed on a screen by detecting a current activity in which a user of the machine is engaged. The detecting of the current activity may be based on context data generated by a set of sensors within the machine. The machine selects an icon from a first set of icons based on the current activity of the user. Furthermore, the machine causes the selected icon from the first set of icons to be displayed with a visibly moving highlight on the screen, resulting in the screen displaying the selected icon within a second set of icons on the screen. The visibly moving highlight may be applied to at least the selected icon but fewer than all icons in the displayed second set of icons.