Home screen widgets have the following life cycle on mobile devices:
Users download and install a home screen enabled widget on a compatible device.
Users add the widget to the home screen, which may require them to grant permissions.
Users select the widget to open it in full screen view.
Note: Users can interact with the widget in this view; for example by making selections, requesting specific data, specifying settings, and so on. Exiting the full screen view does not shut down the widget, it is hidden from view and remains running in the background.
Users remove widgets from the home screen to shut them down.
Note: This also removes the widget from the open applications list.
Users uninstall widgets.