Abstract: In one embodiment, a method includes determining whether a user of the mobile computing device is currently actively using an application on the mobile computing device; and if the user is not currently actively using an application on the mobile computing device, then automatically and without user input providing for display to the user on the mobile computing device a user interface (UI) including a number of interactive elements that each correspond to one of a number of social-networking functionalities provided at least in part by a social-networking system remote from the mobile computing device.

Abstract: In one embodiment, a method includes receiving sensor data, while a mobile electronic device associated with a member of a social-networking system is in a first operation state, from one or more sensors of the mobile electronic device and obtaining characteristic information maintained by the social-networking system, the social-networking system being remote from the mobile electronic device. The method also includes verifying that a current user of the mobile electronic device is the member by comparing the sensor data to the characteristic information. The method also includes, in response to the verifying, transitioning from the first operation state to a second operation state.

Abstract: In particular embodiments, a computing device may receive authentication information provided by a temporary user and retrieve personal information associated with the temporary user from a server using the authentication information. The device may present a personalized user interface on a screen of the computing device for the temporary user, the personalized user interface being generated based on the personal information. The device may detect a terminating event that indicates access to the computing device by the temporary user is to be disabled. The terminating event may be detected by determining that a biometric information associated with the temporary user is undetectable, or determining that the computing device is put down. In response to the detected terminating event, information associated with the temporary user may be removed from the computing device, and the computing device may be reverted to a default state.

Abstract: In one embodiment, user information for a user of a social-networking system is retrieved. Device information is determined for a device associated with the user. Based on the device information or the user information, content associated with the user is retrieved. Using the retrieved content, a content board is composed for use in a cover feed displayed on the device The content board may comprise a background image. Finally, the content board is sent to the device. In one embodiment, updated information for content associated with the user is retrieved. The updated information may be associated with content that was included in a previously-provided content board. Using the updated information, an update to the previously-provided content boards is composed. Finally, the updates may be sent to the previously-provided content boards to the device.

Abstract: In one embodiment, a method includes receiving sensor data, while a mobile electronic device associated with a member of a social-networking system is in a first operation state, from one or more sensors of the mobile electronic device and obtaining characteristic information maintained by the social-networking system, the social-networking system being remote from the mobile electronic device. The method also includes verifying that a current user of the mobile electronic device is the member by comparing the sensor data to the characteristic information. The method also includes, in response to the verifying, transitioning from the first operation state to a second operation state.

Abstract: In particular embodiments, a computing device may receive authentication information provided by a temporary user and retrieve personal information associated with the temporary user from a server using the authentication information. The device may present a personalized user interface on a screen of the computing device for the temporary user, the personalized user interface being generated based on the personal information. The device may detect a terminating event that indicates access to the computing device by the temporary user is to be disabled. The terminating event may be detected by determining that a biometric information associated with the temporary user is undetectable, or determining that the computing device is put down. In response to the detected terminating event, information associated with the temporary user may be removed from the computing device, and the computing device may be reverted to a default state.

Abstract: In one embodiment, while a mobile electronic device is in a first operation state, it receives sensor data from one or more sensors of the mobile electronic device. The mobile electronic device analyzes the sensor data to estimate a current intention of a user with respect to the mobile electronic device; and transition from the first operation state to a second operation state based on the current intention of the user with respect to the mobile electronic device.

Abstract: In particular embodiments, a temporary user is able to use another's personal computing device in shared mode for a short period of time while experiencing a personalized user interface. An indication is detected that a personal computing device associated with a primary user is to be shared with a temporary user. Access to local personal information associated with the primary user is disabled if it is stored on the personal computing device. Access to remote personal information of the primary user that is accessible from the personal computing device is disabled. A personalized user interface incorporating personal information associated with the temporary user is presented on the personal computing device for the temporary user. Personal information of the primary user is not accessible by the temporary user, and vice versa. When shared mode is to be terminated, all personal information of the temporary user is deleted.

Abstract: In one embodiment, while a mobile electronic device is in a first operation state, it receives sensor data from one or more sensors of the mobile electronic device. The mobile electronic device analyzes the sensor data to estimate a current intention of a user with respect to the mobile electronic device; and transition from the first operation state to a second operation state based on the current intention of the user with respect to the mobile electronic device.

Abstract: In one embodiment, while a mobile electronic device is in a first operation state, it receives sensor data from one or more sensors of the mobile electronic device. The mobile electronic device analyzes the sensor data to estimate a current intention of a user with respect to the mobile electronic device; and transition from the first operation state to a second operation state based on the current intention of the user with respect to the mobile electronic device.

Abstract: In particular embodiments, a temporary user is able to use another's personal computing device in shared mode for a short period of time while experiencing a personalized user interface. An indication is detected that a personal computing device associated with a primary user is to be shared with a temporary user. Access to local personal information associated with the primary user is disabled if it is stored on the personal computing device. Access to remote personal information of the primary user that is accessible from the personal computing device is disabled. A personalized user interface incorporating personal information associated with the temporary user is presented on the personal computing device for the temporary user. Personal information of the primary user is not accessible by the temporary user, and vice versa. When shared mode is to be terminated, all personal information of the temporary user is deleted.

Abstract: In particular embodiments, a temporary user is able to use another's personal computing device in shared mode for a short period of time while experiencing a personalized user interface. An indication is detected that a personal computing device associated with a primary user is to be shared with a temporary user. Access to local personal information associated with the primary user is disabled if it is stored on the personal computing device. Access to remote personal information of the primary user that is accessible from the personal computing device is disabled. A personalized user interface incorporating personal information associated with the temporary user is presented on the personal computing device for the temporary user. Personal information of the primary user is not accessible by the temporary user, and vice versa. When shared mode is to be terminated, all personal information of the temporary user is deleted.

Abstract: In one embodiment, user information for a user of a social-networking system is retrieved. Device information is determined for a device associated with the user. Based on the device information or the user information, content associated with the user is retrieved. Using the retrieved content, a content board is composed for use in a cover feed displayed on the device The content board may comprise a background image. Finally, the content board is sent to the device. In one embodiment, updated information for content associated with the user is retrieved. The updated information may be associated with content that was included in a previously-provided content board. Using the updated information, an update to the previously-provided content boards is composed. Finally, the updates may be sent to the previously-provided content boards to the device.

Abstract: In one embodiment, a method includes determining whether a user of the mobile computing device is currently actively using an application on the mobile computing device; and if the user is not currently actively using an application on the mobile computing device, then automatically and without user input providing for display to the user on the mobile computing device a user interface (UI) including a number of interactive elements that each correspond to one of a number of social-networking functionalities provided at least in part by a social-networking system remote from the mobile computing device.

Abstract: In particular embodiments, a temporary user is able to use another's personal computing device in shared mode for a short period of time while experiencing a personalized user interface. An indication is detected that a personal computing device associated with a primary user is to be shared with a temporary user. Access to local personal information associated with the primary user is disabled if it is stored on the personal computing device. Access to remote personal information of the primary user that is accessible from the personal computing device is disabled. A personalized user interface incorporating personal information associated with the temporary user is presented on the personal computing device for the temporary user. Personal information of the primary user is not accessible by the temporary user, and vice versa. When shared mode is to be terminated, all personal information of the temporary user is deleted.

Abstract: In one embodiment, while a mobile electronic device is in a first operation state, it receives sensor data from one or more sensors of the mobile electronic device. The mobile electronic device analyzes the sensor data to estimate a current intention of a user with respect to the mobile electronic device; and transition from the first operation state to a second operation state based on the current intention of the user with respect to the mobile electronic device.