A developer has developed a news browsing application, and the news list page is displayed by default when the application is opened, which of the following methods does the developer use to achieve this function?
Answer(s): B
If the user migrates the video on the machine to the smart screen for playback, which of the following callback methods can save the video playback data on the mobile phone?
Answer(s): D
Which of the following subsystems in Harmony OS can achieve data isolation between applications?
Which of the following does not belong to the application framework layer in the Harmony OSsystem architecture?
HarmonyOS defines different open scopes and authorization methods to protect data according to the sensitivity of the data involved in the interface
Answer(s): C
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