A computer-implemented method, comprising: detecting a user display operation; triggering a display instruction corresponding to the user display operation, wherein the display instruction is used to instruct to display notification information that is not processed, wherein the displaying the notification information that is not processed comprises: if a target application program corresponding to the notification information that is not processed is visible on a display screen and the target application program is in a window display mode, adjusting a window corresponding to the target application program; and if a target application program corresponding to the notification information that is not processed is not visible on the display screen, displaying the target application program on the display screen in a preset user interface mode in accordance with a type of the user display operation, wherein when the detected user display operation is a first type of user display operation, the target application program is displayed on the display screen in the window display mode, and when the detected user display operation is a second type of user display operation, the target application program is displayed on the display screen in the full-screen display mode. detecting a user display operation; triggering a display instruction corresponding to the user display operation, wherein the display instruction is used to instruct to display notification information that is not processed, wherein the displaying the notification information that is not processed comprises: if a target application program corresponding to the notification information that is not processed is visible on a display screen and the target application program is in a window display mode, adjusting a window corresponding to the target application program; and if a target application program corresponding to the notification information that is not processed is not visible on the display screen, displaying the target application program on the display screen in a preset user interface mode in accordance with a type of the user display operation, wherein when the detected user display operation is a first type of user display operation, the target application program is displayed on the display screen in the window display mode, and when the detected user display operation is a second type of user display operation, the target application program is displayed on the display screen in the full-screen display mode. if a target application program corresponding to the notification information that is not processed is visible on a display screen and the target application program is in a window display mode, adjusting a window corresponding to the target application program; and if a target application program corresponding to the notification information that is not processed is not visible on the display screen, displaying the target application program on the display screen in a preset user interface mode in accordance with a type of the user display operation, wherein when the detected user display operation is a first type of user display operation, the target application program is displayed on the display screen in the window display mode, and when the detected user display operation is a second type of user display operation, the target application program is displayed on the display screen in the full-screen display mode. when the detected user display operation is a first type of user display operation, the target application program is displayed on the display screen in the window display mode, and when the detected user display operation is a second type of user display operation, the target application program is displayed on the display screen in the full-screen display mode. <EOS>