A core function on the Android working system, this performance permits the show to transition right into a visually partaking display saver whereas the machine is idle and charging, or docked. The content material offered can vary from easy clock shows and picture slideshows to extra complicated interactive components. For example, a consumer would possibly set the machine to show a rotating gallery of non-public images or a information ticker whereas it rests on a charging stand.
This performance serves a number of functions. It mitigates display burn-in on units with OLED shows, gives at-a-glance entry to data with out totally unlocking the machine, and transforms a passively charging machine right into a supply of ambient data or visible attraction. Traditionally, this functionality developed from easy display savers designed to forestall CRT monitor harm to a extra subtle technique of knowledge presentation and personalization.