Abstract: A method for tracking a terminal device having a cellular modem and a positioning module is disclosed. The method comprises monitoring a location of a terminal device through a cellular network using the cellular modem of the terminal device, while the positioning module of the terminal device is disabled; determining that the terminal device enters a first cell of the cellular network based on signals from the cellular modem; enabling the positioning module of the terminal device in response to the determination that the terminal device enters the first cell; and obtaining from the positioning module a first geographical location of the terminal device in the first cell.

Abstract: A method for tracking a terminal device having a cellular modem and a positioning module is disclosed. The method comprises monitoring a location of a terminal device through a cellular network using the cellular modem of the terminal device, while the positioning module of the terminal device is disabled; determining that the terminal device enters a first cell of the cellular network based on signals from the cellular modem; enabling the positioning module of the terminal device in response to the determination that the terminal device enters the first cell; and obtaining from the positioning module a first geographical location of the terminal device in the first cell.

Abstract: A shooting method and a terminal. A terminal receives a first indication for opening a camera application, where the camera application is associated with at least one mode plug-in and at least one function plug-in. The terminal displays at least one mode option corresponding to the at least one mode plug-in, for selection by a user. The terminal receives a second indication indicating that the user selects a first mode option. The terminal displays a function option that supports a first mode, for selection by the user. The terminal receives a shooting instruction, and performs shooting based on the first mode and a function that is selected by the user from the displayed function option, where a first mode plug-in corresponding to the first mode and a function plug-in corresponding to the selected function are preloaded.