An electronic device displays an application window in a floating window state, where the application window includes a first control. Following a first sliding operation starting from the first control, the electronic device may move the application window along a sliding track of the first sliding operation, where the first sliding operation is a first movement in a first direction. The electronic device may display the application window in a full-screen state in response to a first lifting operation after the first movement, where before displaying the application window in the full-screen state, the electronic device further continues to move the application window in the first direction in response to the first lifting operation after the first movement, where a window size of the application window gradually increases in a moving process until the application window is in the full-screen state.