Barrier-free color palettes should meet the identification needs of color blindness, and safe color palettes can be found by simulating the visual effects of different similar color defects.
When a HarmonyOS developer makes an FA call to PA, the callAbility interface returns the error "Internal ability not register.", which of the following points needs to be checked correctly?
A user migrates video playback from his mobile phone to a smart screen and uses the distributed task scheduling capability of HarmonyOS. Which of the following is the process of connecting the video to the smart screen playback in this scenario?
HarmonyOS Converged Search provides developers with search-engine-level full-text search capabilities to provide users with a more accurate and efficient search experience.
A developer designed an application, when the user receives a notification, if the user clicks on the notification, it will jump to a new page, and if the notification is not clicked, the new page will not be triggered.
If a HarmonyOS developerhas developed multiple applications and ensured that the data between different applications cannot be accessed through the triplet of account, application, and database, which of the following services can the developer use to achieve this function?
In HarmomOS, when an application is launched, the system creates an execution thread named "Main Thread" for the application. The main thread, also known as the UI thread, displays and updates the UI interface on the main thread.
