Abstract: Disclosed within are various methods for adjusting height and rotation of a spray gun used in a line striper via a graphical user interface (GUI) in a control device.

Abstract: An article of manufacture is described as implemented in a mobile device having a lock screen wallpaper, where the mobile device maintains a profile storing authentication data associated with both a primary user of a mobile device and one or more secondary users that are authorized to use the mobile device. When the mobile device is at a business location, the secondary user(s) are non-intrusively authenticated as authorized user(s) of the mobile device. Upon successful authentication a scanning code is displayed over a lock screen wallpaper of the mobile device, where power is conserved in the mobile device by providing the scanning code to the secondary user(s) without unlocking the mobile device.

Abstract: A navigation application running in the foreground of the mobile device is run in the background when the mobile device enters a screen locked state. A display may be activated while the mobile device remains in the screen locked state, and an image is rendered over a lock screen of the mobile device, where the image providing a glimpse into the navigation application running in the background while the mobile device remains in the screen locked state. The image displayed over the lock screen is iteratively updated to provide a continuous glimpse into the navigation application running in the background of the mobile device that is in the screen locked state, without having to unlock the mobile device.

Abstract: A navigation application running in the foreground of the mobile device is run in the background when the mobile device enters a screen locked state. A display may be activated while the mobile device remains in the screen locked state, and an image is rendered over a lock screen of the mobile device, where the image providing a glimpse into the navigation application running in the background while the mobile device remains in the screen locked state. The image displayed over the lock screen is iteratively updated to provide a continuous glimpse into the navigation application running in the background of the mobile device that is in the screen locked state, without having to unlock the mobile device.

Abstract: An effective implementation is shown for a height adjustment system for a plurality of spray guns used in a line striper.