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Huawei H14-231_V1.0 Practice Test - Questions Answers, Page 23

Question list

List of questions

Question 221

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Which of the following methods can jump to a new page and destroy the current page?

Question 222

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For example, if you want to implement an advertising pop-up window now, including information such as pictures and text, you can use the following pop-up window

Question 223

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Which of the following permissions is required to load network images with the Image component?

Question 224

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In which of the following files can you set the path configuration information of the page?

Question 225

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The maximum length limit of the preference key is ( ) bytes

Question 226

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Regarding the Button component, which of the following styles is a capsule-type button?

Question 227

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Which of the following combinations cannot realize two-way data synchronization between child components and parent and child components?

Question 228

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Question 229

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What data types are supported for the storage of preference preferences values

Question 230

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Which of the following components cannot contain subcomponents?

Related questions

When a developer is developing an online education application, in order to improve the user experience, if the user Answer:s the question correctly, a dialog box of 'Congratulations on the correct Answer:' will pop up at the top of the window.

Which of the following sorting types does the trusted list of devices found by HarmonyOS Device Manager contain?

In the HarmonyOS system architecture, the distributed data management module belongs to the framework layer.

fter a developer sets :ohos:layout_alignment='horizontal_center' in the Text component, he writes: text.setMarginRight (600) in the code, where is the Text displayed in the parent layout?

Which modules in the following figure can be installed and operated independently?

A developer needs to cancel a task, but part of the code segment he wrote was deleted by mistake. The remaining codes are as follows, with the missing codes indicated by the dash: TaskDispatcher dispatcher = getUlTaskDispatcher(); Revocable revocable = ________________________(new Runnable(){ @Overide Public void run(){ HiLog.info(L . ABEL_ _LOG,'delay dispatch'); } },10); Boolean revoked = revocable.revoke(); HiL og.info(L _ABEL_ LOG),'%{public}b' ,revoked); Which of the following might be missing pieces in the above code?

The default size of shared memory in Harmony OS is ?

A developer is developing a flight booking application, and uses the sliding selector Picker to select the location of the ticket and writes the following code.

Which of the following classes is the base class for JavaScript FA (Feature Ability) to run on HarmonyOS?

The callback mechanism provided by the Ability class can enable the Page instance to switch in the background following the user's operation.

Question 221

Which of the following methods can jump to a new page and destroy the current page?

router.pushUrl( )

router.replaceUrl( )

router.back( )

router.clear( )

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Question 222

For example, if you want to implement an advertising pop-up window now, including information such as pictures and text, you can use the following pop-up window

AlertDialog

@CustomDialog

TextPickerDialog

TimePickerDialog

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Question 223

Which of the following permissions is required to load network images with the Image component?

ohos.permission.READ_MEDIA

ohos.permission.INTERNET

ohos.permission.GET_NETWORK_INFO

ohos.permission.DISTRIBUTED_DATASYNC

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Question 224

In which of the following files can you set the path configuration information of the page?

main_pages.json

module.json5

app.json5

package.json

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Question 225

The maximum length limit of the preference key is ( ) bytes

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Question 226

Regarding the Button component, which of the following styles is a capsule-type button?

ButtonType.Capsule

ButtonType.Normal

ButtonType.Circle

None of the above

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Question 227

Which of the following combinations cannot realize two-way data synchronization between child components and parent and child components?

@State and @Link

@Provide and @Consume

@Observed and @ObjectLink

@State and @Prop

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Question 228

Resource is a resource reference type that sets the value of a component's properties

refers to application resources in the form of 'Sr('app.type.name')', and the app represents the app resources directory, type represents the resource type (or the location where the resource is stored)

Resource supports all data types

system can load the appropriate Resource resources according to the current configuration, for example, developers can render different layout effects according to the screen size, or provide different strings according to the language settings

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