Triggering display of an application includes initially presenting a first interface, including an interface of a parent application, on a display screen and in response to receiving a gesture denoting an approximate closed region or a closed region, determining a non-full-screen display region corresponding to the gesture on the display screen. Based on the parent application being displayed as part of the first interface when receiving the gesture, identifying child application(s) of the parent application, the child application(s) being deemed relevant to the parent application, and displaying shortcut(s) of the child application(s) in the non-full-screen display region, and in response to a user selecting one of the shortcut(s), launching a child application corresponding to the selected shortcut and displaying an interface of the child application in the non-full-screen display region.