Huawei Related Exams
H14-231_V1.0 Exam
A Page Ability (hereinafter referred to as "Page") may consist of one or more AbilitySlice, which refers to the sum of a single page of an application and its control logic.
A user grants permission X to application A of a certain device, and on the device, application A persists the state of this permission grant and can call all interfaces controlled by permission X at any time.
If a developer wants to develop a file background download function, there needs to be a Page Ability to provide UI pages, and a Service Ability to provide the background file download function. Which of the following can invoke Service Ability in Page Ability?