1. A method for information browsing, the method comprising: obtaining, by one or more processors, screen partition information of an electronic device; obtaining, by one or more processors, a position of a user's current input on a screen of the electronic device, wherein the user's current input is provided by a user; obtaining, by one or more processors, file segmentation information describing a mapping relationship between file segments and screen partitions; determining, by one or more processors, a file segment corresponding to the user's current input based on the screen partition information, the position of the user's current input on the screen, and the file segmentation information; and displaying, by one or more processors, a preview of a determined file segment corresponding to the user's current input.