Abstract: In accordance with an embodiment, a method includes installing, by an electronic device, a first application from an application market, wherein the first application corresponds to a permission configuration file, the permission configuration file indicates an access permission for a file type approved by the application market through reviewing, and the first application is capable of using the file type; in response to the first application needing to access a file in the electronic device, requesting, by the first application, to apply for a first permission; displaying, by the electronic device, a first interface in response to the permission configuration file comprising the first permission, wherein the first interface is used to request a user to grant the first permission; and obtaining, by the first application, the first permission in response to a first operation in which the user agrees to grant the first permission.

Abstract: This application discloses a data compression method and apparatus. The method includes: obtaining m data blocks in a data area of a readable and writable file system; compressing the m data blocks by using a preset compression algorithm, to sequentially obtain n compressed data blocks, where first capacities of the compressed data blocks are the same, and the first capacity represents a quantity of bytes of compressed data that can be included in the compressed data block; and establishing a first index of each of j data blocks corresponding to an ith compressed data block in the n compressed data blocks, and recording a mapping relationship between first indexes and the j data blocks. The first index is used to identify a storage location, in a storage medium, of each data block included in the j data blocks, and attribute information included in each of the j data blocks.

Abstract: Embodiments of this application disclose an application function implementation method, so as to resolve a problem of low use efficiency of an electronic device. A first electronic device establishes a first wireless link through a first wireless communications protocol, displays a screen that includes a first control, receives an operation performed on the first control, displays a shortcut menu that includes a second control, receives an operation performed on the second control, displays a list that includes a first identifier of a second electronic device, receives an operation performed on the first identifier, establishes a second wireless link to the second electronic device through a second wireless communications protocol, where the first electronic device and the second electronic device are associated with each other, and sends first information that includes to-be-shared data and a second identifier to the second electronic device through the second wireless link.

Abstract: Embodiments of this application disclose an application function implementation method, so as to resolve a problem of low use efficiency of an electronic device. A first electronic device establishes a first wireless link through a first wireless communications protocol, displays a screen that includes a first control, receives an operation performed on the first control, displays a shortcut menu that includes a second control, receives an operation performed on the second control, displays a list that includes a first identifier of a second electronic device, receives an operation performed on the first identifier, establishes a second wireless link to the second electronic device through a second wireless communications protocol, where the first electronic device and the second electronic device are associated with each other, and sends first information that includes to-be-shared data and a second identifier to the second electronic device through the second wireless link.

Abstract: Embodiments of this application disclose an application function implementation method, so as to resolve a problem of low use efficiency of an electronic device. A first electronic device establishes a first wireless link through a first wireless communications protocol, displays a screen that includes a first control, receives an operation performed on the first control, displays a shortcut menu that includes a second control, receives an operation performed on the second control, displays a list that includes an identifier of a second electronic device, receives an operation performed on the identifier, establishes a second wireless link to the second electronic device through a second wireless communications protocol, where the first electronic device and the second electronic device are associated with each other, and sends first information that includes to-be-shared data and an identifier to the second electronic device through the second wireless link.

Abstract: Embodiments of this application disclose an application function implementation method, so as to resolve a problem of low use efficiency of an electronic device. A first electronic device establishes a first wireless link through a first wireless communications protocol, displays a screen that includes a first control, receives an operation performed on the first control, displays a shortcut menu that includes a second control, receives an operation performed on the second control, displays a list that includes an identifier of a second electronic device, receives an operation performed on the identifier, establishes a second wireless link to the second electronic device through a second wireless communications protocol, where the first electronic device and the second electronic device are associated with each other, and sends first information that includes to-be-shared data and an identifier to the second electronic device through the second wireless link.