A method includes invoking, by a user through continuous sliding, a first application bar and a second application bar that includes more application icons than the first application bar, to help the user perform an operation on an application icon included in the first application bar or the second application bar to quickly start an application. In addition, the method is further combined with a return function. After a first identifier appears, for example, when a first slide gesture goes to a second point, if a touch point of the user leaves a screen, an electronic device performs the return function, for example, display an interface previous to a first interface on a display, or the electronic device performs a function of returning to a home screen, for example, display the home screen of the electronic device on a display.