Abstract: An MVVM architecture-based application development method and a terminal are disclosed, relate to the terminal field, The method includes: The developer customizes data objects of some background data, and declares, in an interface description file, a binding relationship between some controls in a UI and the data objects of the background data. The interface description file may use any interface description language. Then, in a process of parsing the interface description file designed by the developer, the declared binding relationship is automatically identified. The binding relationship is registered. Corresponding listening is set, to establish a bidirectional binding channel.

Abstract: An application installation package of a first application includes a first description file and a second description file that are used to perform interface description and interface behavior definition on a UI of the first application. The first description file and the second description file use different interface description languages. The first description file uses a first interface description language, and the second description file uses a second interface description language. When an electronic device runs the first application, a first UI engine reads, parses, and executes the first description file, to generate a first part of a first UI; and a second UI engine reads, parses, and executes the second description file, to generate a second part of the first UI.

Abstract: A control display method and a device are provided. The method includes: receiving a wake-up word input by a user; displaying a second interface of a first application, wherein the second interface includes the first control and a second control; receiving a switching operation of the user; displaying a first interface of a second application, wherein the first interface of the second application includes the first control; receiving the wake-up word input again by the user; and displaying a second interface of the second application, wherein the second interface of the second application includes the first control and a third control. According to this application, voice controls associated with different applications are automatically added and displayed, thereby ensuring that a same quantity and types of voice controls are displayed on interfaces of different applications and improving a voice service function of the electronic device.

Abstract: In an embodiment a method includes displaying, by an electronic device, a first sequence frame image of a prompt file in response to a first operation performed by a user and displaying, by the electronic device, a second sequence frame image of the prompt file in response to a second operation performed by the user, wherein the prompt file comprises at least first-part contour information and second-part contour information of a playing object, wherein the first sequence frame image is generated based on the first-part contour information of the playing object, and wherein the second sequence frame image is generated based on the second-part contour information of the playing object and comprises content of the first sequence frame image.