Embodiments of the present disclosure relate generally to modifying and navigating building plans. In particular, one or more embodiments relate to a system that improves the ease and efficiency in which a user, through a client device, may view and use building plans comprised of a plurality of content items. The system may receive a plurality of content items associated with a building plan, combine sets of two or more content items representing a substructure, form locational links between the plurality of content items, and provide a navigational interface for display on a client device associated with a user through which the client device may navigate through the plurality of content items of the building plan. Further, alternate content items may be received and overlayed on corresponding content items. Any differences between the corresponding content items may be highlighted.

Embodiments of the present disclosure relate generally to modifying and navigating building plans. In particular, one or more embodiments relate to a system that improves the ease and efficiency in which a user, through a client device, may view and use building plans comprised of a plurality of content items. The system may receive a plurality of content items associated with a building plan, combine sets of two or more content items representing a substructure, form locational links between the plurality of content items, and provide a navigational interface for display on a client device associated with a user through which the client device may navigate through the plurality of content items of the building plan. Further, alternate content items may be received and overlayed on corresponding content items. Any differences between the corresponding content items may be highlighted.

A method and an apparatus for processing a screen by using a device are provided. The method includes obtaining, at the second device, a display screen displayed on the first device and information related to the display screen according to a screen display request regarding the first device, determining, at the second device, an additional screen based on the display screen on the first device and the information related to the display screen, and displaying the additional screen near the display screen on the first device.

A method and an apparatus for processing a screen by using a device are provided. The method includes obtaining, at the second device, a display screen displayed on the first device and information related to the display screen according to a screen display request regarding the first device, determining, at the second device, an additional screen based on the display screen on the first device and the information related to the display screen, and displaying the additional screen near the display screen on the first device.

A method for adding an icon to an interface of an Android system, where the Android system has N interfaces, includes: a. obtaining add command information; b. obtaining, according to the add command information, space information of an icon to be added; c. obtaining remaining space information of an M.sup.th interface according to the add command information; d. judging whether the space information of the icon to be added is greater than the remaining space information of the M.sup.th interface; if yes, executing step e; if no, executing step f; e. judging whether the M.sup.th interface is a last interface to be judged; if yes, executing step g; if no, assigning M+1 to M and returning to step c; f. adding the icon to the interface; and g. establishing another interface, and adding the icon to the newly established interface; where M and N are natural numbers, and 1≤M≤N.

A method for adding an icon to an interface of an Android system, where the Android system has N interfaces, includes: a. obtaining add command information; b. obtaining, according to the add command information, space information of an icon to be added; c. obtaining remaining space information of an M.sup.th interface according to the add command information; d. judging whether the space information of the icon to be added is greater than the remaining space information of the M.sup.th interface; if yes, executing step e; if no, executing step f; e. judging whether the M.sup.th interface is a last interface to be judged; if yes, executing step g; if no, assigning M+1 to M and returning to step c; f. adding the icon to the interface; and g. establishing another interface, and adding the icon to the newly established interface; where M and N are natural numbers, and 1≤M≤N.

A display control system specifies, in a case where one of a plurality of individual information items associated with a common information item is specified, the common information item associated with the specified individual information item, and other individual information items associated with the common information item. The display control system determines an order of the specified individual information item, the common information item, and the other individual information items such that the specified individual information item is positioned between the common information items and the other individual information items. In a case where a page turning operation is performed in a predetermined direction, the display control system displays pages of the other individual information items. In a case where the page turning operation is performed in a direction opposite to the predetermined direction, the display control system displays the page of the common information item.

A display control system specifies, in a case where one of a plurality of individual information items associated with a common information item is specified, the common information item associated with the specified individual information item, and other individual information items associated with the common information item. The display control system determines an order of the specified individual information item, the common information item, and the other individual information items such that the specified individual information item is positioned between the common information items and the other individual information items. In a case where a page turning operation is performed in a predetermined direction, the display control system displays pages of the other individual information items. In a case where the page turning operation is performed in a direction opposite to the predetermined direction, the display control system displays the page of the common information item.

An information processing apparatus includes a display, a setter, and a synchronization controller. The display displays a first document in a first window and also displays a second document in a second window. The setter sets a synchronization setting between the first and second documents. The synchronization controller executes an operation performed on one of the first and second documents also on the other one of the first and second documents when a synchronization setting is set by the setter, and cancels the synchronization setting when one of the first and second documents is in a first state in which it is not being used and restarts the synchronization setting when the corresponding one of the first and second documents is changed from the first state to a second state in which it is being used.

An information processing apparatus includes a display, a setter, and a synchronization controller. The display displays a first document in a first window and also displays a second document in a second window. The setter sets a synchronization setting between the first and second documents. The synchronization controller executes an operation performed on one of the first and second documents also on the other one of the first and second documents when a synchronization setting is set by the setter, and cancels the synchronization setting when one of the first and second documents is in a first state in which it is not being used and restarts the synchronization setting when the corresponding one of the first and second documents is changed from the first state to a second state in which it is being used.