An electronic device with a touch-sensitive display and one or more sensors to detect signals from a stylus associated with the device: while the electronic device is in a locked state: displays a lock screen user interface on the touch-sensitive display; while displaying the lock screen user interface, detects a first input from the stylus to draw on the touch-sensitive display; in response to detecting the first input, displays, over the lock screen user interface, one or more marks of a drawing that correspond to the first input; while displaying, on the lock screen user interface, the one or more marks of the drawing: detects a second input from the stylus to display a drawing application in a restricted mode; and, in response to detecting the second input, executes the drawing application in the restricted mode and displays the one or more marks of the drawing in the drawing application.