Abstract: Embodiments of this application provide example communication methods and apparatuses. One example communication method is applied to a communications device, where a subscriber identification module (SIM) card is installed in the communications device, and where the example communication method includes determining, by the communications device, that the SIM card is removed. The communications device can then send alarm information to a network device, where the alarm information indicates that the SIM card in the communications device is removed, and where security protection is performed on the alarm information based on security context stored in the communications device. The communications device can then delete the security context.

Abstract: An electronic device receives a first operation to start distance measurement on a measured target. The electronic device displays a first user interface on a display screen in response to the first operation. The first user interface is configured to display an image captured at any angle by a camera. The electronic device receives a second operation performed by a user based on the image. The electronic device adds and displays a first locating point on the first user interface in response to the second operation. The electronic device performs distance measurement on the measured target based on the first locating point to obtain a measurement result of the measured target, and the measurement result is displayed.

Abstract: Embodiments of this application disclose a VR display control method, an electronic device, and a computer-readable storage medium. In embodiments of this application, a VR desktop may be generated, so that the VR desktop is displayed on a virtual reality display device. In addition, an operation performed by a user on a first application icon on the VR desktop is received, where the first application icon is associated with a first application installed on the electronic device. Therefore, content of the first application may be displayed through the virtual reality display device, where the content of the first application is displayed on a curved surface screen that is obtained through conversion from a rectangular screen. In embodiments of this application, a most eye-friendly curvature effect may be achieved through a VR virtual scene, so that visual experience of the user can be enhanced, and user experience can be improved.

Abstract: An electronic device may determine pose information of a virtual object based on pose information of a real object or a location of a real sound source, to generate and display an AR image, and may further generate and play 3D sound data of the virtual object based on the pose information of the real object and the pose information of the virtual object.

Abstract: Example bullet screen play methods and apparatus are described. One example bullet screen play method includes receiving a bullet screen enabling instruction for a target video, where the bullet screen enabling instruction instructs to play a bullet screen in a virtual reality (VR) bullet screen manner. An annular transparent bullet screen layer is drawn in a preset orientation of a video layer of the target video in response to the bullet screen enabling instruction, where a first height of the video layer is less than a second height of the bullet screen layer. Bullet screen information of a real-time bullet screen of the target video is obtained. Three-dimensional coordinates of the real-time bullet screen on the bullet screen layer are calculated based on the bullet screen information. The real-time bullet screen is refreshed and played on the bullet screen layer based on the three-dimensional coordinates.

Abstract: An electronic device receives a first operation to start distance measurement on a measured target. The electronic device displays a first user interface on a display screen in response to the first operation. The first user interface is configured to display an image captured at any angle by a camera. The electronic device receives a second operation performed by a user based on the image. The electronic device adds and displays a first locating point on the first user interface in response to the second operation. The electronic device performs distance measurement on the measured target based on the first locating point to obtain a measurement result of the measured target, and the measurement result is displayed.