1. A method for information browsing, the method comprising: obtaining, by one or more processors, screen partition information of an electronic device, wherein the screen partition information describes a partitioning of a display on the electronic device into multiple coordinate sections; 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 to indicate the user choosing a particular screen partition on the display; 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, wherein said determining the file segment corresponding to the user's input is performed in response to detecting that the user's current input is entered into a new screen partition; and displaying, by one or more processors, a preview of a determined file segment corresponding to the user's current input.