Huawei HCIP-HarmonyOS Application Developer V1.0 : H14-231_V1.0

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Huawei H14-231_V1.0 Exam Syllabus Topics:

Huawei HCIP-HarmonyOS Application Developer V1.0 Sample Questions:

1. If a developer wants to develop a file background download function, there needs to be a Page Ability to provide U pages, and a Service Ability to provide the background file download function. If you want to perform some operations after connecting to the Service Ability in the Page Ability, you need to implement the onAbilityConnectDone() method in the Page Ability.

A) True
B) False

2. When a developer compiles a project, the compilation fails, and the message "This device type does not match project profile" is displayed, because the device type configured in "config.json" does not match the device type for debugging, and "deviceType" needs to be configured in the "module" tag.

A) True
B) False

3. Sservice Abilit calls the onCommand() method after the creation is completed, and the method can be called once when the client starts the service for the first time, and there is no need to call it again in the future

A) True
B) False

4. The developer is developing a ticket booking application, and uses the slide selector Picker to select the starting point of the ticket and writes the following code.
<Picker
ohos:id="$+id:test_picker"
ohos:selected_text_color="#FFFFFF"
ohos:value="55"
ohos:max_value="10"
ohos:selector_item_num="10"
ohos:bottom_line_element="#FFFFFF"
ohos:selected_text_size="16fp"/>

A) The current value is 10
B) Choose the color of the Chinese text as white
C) Set the font size of the selected Chinese version to 16fp
D) The maximum value is 10

5. In order to cope with complex application business logic, a developer needs to create multiple threads to perform multiple tasks. In this case, the code is complex and difficult to maintain, and the interaction between tasks and threads becomes more complex. To solve this problem, which of the following interfaces can the developer use to distribute different tasks?

A) lAbilityMlanager
B) TaskDispatcher
C) BackgroundTaskManager
D) Group

Solutions: