Huawei H14-231_V1.0 Practice Test - Questions Answers, Page 63
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A developer needs to use the JavaScript UI framework to display the bar chart of the current month's product sales, and can use the chart component to achieve this function.
In order to improve the user experience, a developer uses ScrollView to realize the scrolling display of photos in an album application, and in order to improve the user experience, the developer sets the ScrollView rebound_effect property to true, so that the photo has a rebound effect when sliding to the bottom.
The ListContainer grid layout can be realized through the setLayoutManager() method
In HarmonyOS's '1+8+N' strategy, mobile phones belong to one of the '8' devices.
A user uses the HarmonyOS distributed task scheduling capability to migrate mobile phone videos to the smart screen for playback. In this scenario, the process of finding whether the smart screen has the same playback software is a global query.
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.
When a developer has multiple versions of the object-relational mapping database, and the developer calls the BookStoreUpgrade class to upgrade the database version, the version number of the BookStoreUpgrade class is configured as '2', and the actual version number of the current BookStore.db is '1'.
When a developer uses mobile phones and smart screens to develop applications, he can select two device types, smartphones and smart screens, in the AppGallery project.
In the lifecycle of AbilitySlice, the onStart() callback method does not need to be rewritten.
The callback mechanism provided by the Ability class can allow the Page instance to switch with the user's operation background
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