Home / Huawei / H14-231_V1.0

Huawei H14-231_V1.0 Practice Test - Questions Answers, Page 37

Question list

List of questions

Question 361

(0)

If a developer uses custom components when developing a HarmonyOS application, what are the correct descriptions of custom components below?

Question 362

(0)

A developer called the getDefaultHost(Context context) interface of BluetoothHost to obtain a Bl1uetoothHost instance for managing local Bluetooth operations. The developer uses the following develo

Question 363

(0)

Which of the following descriptions is wrong when it comes to the simultaneous development of JS (JavaScript) and Java languages in HarmonyOS application development?

Question 364

(0)

A PageA contains Ability SliceA1 and AbilitySliceA2, which is displayed as AbilitySliceA1 by default. What are the following steps if you want to navigate directly to PageA's AbilitySliceA2 in PageB

Question 365

(0)

Regarding Hongmeng's atomic service, the following statement is correct

Question 366

(0)

There is a configuration file named 'config.json' in the root directory of each HAP package of the HarmonyOS application, which mainly covers the following three aspects:

Question 367

(0)

When developing a HarmonyOS application, if you want to set the background color for a Text component in the page, the following is correct

Question 368

(0)

. When developing a HarmonyOS application, use a component Text as the title of a page, if you want to make the title invisible and still occupy the space of the current page, the following operatio

Question 369

(0)

A developer has developed a HarmonyOS application that remotely launches a Page on phone B, and which of the following permissions does not need to request the user to grant permission by sending a

Question 370

(0)

In HarmonyOS, Intents are the carriers for transferring information between objects, and which of the following items can be set through Intents?

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.

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.

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?

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?

The default size of shared memory in Harmony OS is ?

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

An engineer uses the WLAN P2P function, and the engineer can establish a P2P group.

What is the API for lottie to subscribe to events?

Question 361

If a developer uses custom components when developing a HarmonyOS application, what are the correct descriptions of custom components below?

Add tag elements such as styleable and item to values/attrs.xml

In the constructor with the AttrSet parameter of the custom component, use attrSet.getAttr('XxX').get().getStringValue() to get the property

Add xmlns:app='http://schemas.huawei.com/apk/ res/ohos' to the layout.xml of the component definition

In the constructor of the custom component, call array.getlntegor(ResourceManager.styleab1e.***,100) to get the property

Show Answer Comment (0)

A developer called the getDefaultHost(Context context) interface of BluetoothHost to obtain a Bl1uetoothHost instance for managing local Bluetooth operations. The developer uses the following development steps to implement Bluetooth pairing:

1Turn on Bluetooth.

2Scan Bluetooth.

3. Initiate pairing.

Which of the following statements about steps 1, 2, and 3 is true?

calls startBtDiscovery() to complete step 2

The order in which steps 2 and 3 are implemented can be reversed

calls the enableBt() interface to complete step 1

calls startPair() to complete step 3

Show Answer Comment (0)

Question 363

Which of the following descriptions is wrong when it comes to the simultaneous development of JS (JavaScript) and Java languages in HarmonyOS application development?

Use Java to develop the UI of the application

JS FA calls Java PA

Use JS to develop the logic of the application

Java FA (Feature Ability) calls JS PA (Particle Ability).

Show Answer Comment (0)

Question 364

A PageA contains Ability SliceA1 and AbilitySliceA2, which is displayed as AbilitySliceA1 by default. What are the following steps if you want to navigate directly to PageA's AbilitySliceA2 in PageB on the current device?

Add a route for AbilitySliceA2 via addActionRoute() in PageA

Set the action in the Intent of the PageB navigation

Set Deviceld to empty in the Intent of the PageB navigation

Show Answer Comment (0)

Question 365

Regarding Hongmeng's atomic service, the following statement is correct

Atomic service is displayed as a card in the Services Hub that can be added to the desktop

When an atomic service is managed and distributed by the Marketplace, its size cannot exceed 10 MB

Atomic service is an installation-free application with an independent entrance

Atomic services correspond to one HAP package and are used to complete one specific convenience service

Show Answer Comment (0)

Question 366

There is a configuration file named 'config.json' in the root directory of each HAP package of the HarmonyOS application, which mainly covers the following three aspects:

The configuration information of the app on a specific device

Configuration information of all abilities in the current module

Global configuration information for the app

HAP package configuration information

Show Answer Comment (0)

Question 367

When developing a HarmonyOS application, if you want to set the background color for a Text component in the page, the following is correct

ohos:background_element='$graphic:background

ohos:background_element='$color:green'

ohos:background_element='#0000FF'

ohos:background_element='#880000FF'

Show Answer Comment (0)

Question 368

. When developing a HarmonyOS application, use a component Text as the title of a page, if you want to make the title invisible and still occupy the space of the current page, the following operations are correct

ohos:visibility= 'invisible'

text.setVisibility(Component.HIDE)

ohos:visibility='hide'

text.setVisibility(Component.INVISIBLE)

Show Answer Comment (0)

Question 369

A developer has developed a HarmonyOS application that remotely launches a Page on phone B, and which of the following permissions does not need to request the user to grant permission by sending a pop-up window at runtime?

ohos.permission.GET_DISTRIBUTED_DEVICE_INFO

ohos.permission.DISTRIBUTED_DEVICE STATE_CHANGE

ohos.permission.GET_BUNDLE_INFO

ohos.permission.DISTRIBUTED_DATASYNC

Show Answer Comment (0)