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

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Total 695 questions

What is the correct description of the http module?

A.

HTTP requests support common request methods, such as get, post, and put.

B.

can use on(headersReceive') to subscribe to the request response header.

C.

Theparameters of thepost request can be specified in extraData.

D.

After the createHttp command is successfully executed, an httpRequest object is returned, which includes the request, destroy, on, and off methods.

What are the parameters of animation in attribute animation?

A.

playMode

B.

curve

C.

delay

D.

onFinish

The main axis of the Row container is horizontal, and the cross axis is vertical, and its parameter type is VerticalAlign, and VerticalAlign defines the following types?

A.

Top

B.

Bottom

C.

Start

D.

End

E.

Center

Which of the following can set the rounded corner effect of the ShapeElement?

A.

Bin Java code set: int radius =

B.

AttrHelper.vp2px(8)

element.setCornerRadiiArray(new float[]

{radius,radius,radius,radius,radius,radius,radius,radius})

C.

Set in XML:

D.

is set in Java code:

element.setCornerRadius(AttrHelper.vp2px(8))

In HarmonyOS, when switching between pages, if you use Ability Switching, it is equivalent to constantly switching new pages in the same window, and if you use AbilitySlice to switch, a new window will pop up.

A.

True

B.

False

What is correct about Web Component Description A?

A.

web componentis a component that provides the ability to display web pages.

B.

Theincoming address of a web component can be a local resource or a network resource.

C.

WebController can control various behaviors of web components, such as the forward and backward functions of web pages.

D.

When accessing online web pages, you need to add network permissions.

When using DevEco Studio for debugging, you need to check the properties in configjson regardless of whether you use a real machine or an emulator.

A.

True

B.

False

The KV data model is a SQL-type database whose data is organized, indexed, and stored in the form of key-value pairs.

A.

True

B.

False

Which of the following statements is true about the use of the previewer?

A.

In the process of developing UI code, if you add or remove UI components, you only need toCtrl+S to save them, and then the previewer will immediately refresh the preview result

B.

On the previewer interface, you can operate the interface interaction actions of the application/servicein the previewer, such as clicking, jumping, swiping, etc., which is consistent with the interface interaction experience of the application/service running on the real device

C.

Component previews are implemented by adding annotations @Preview front of the component

D.

Thepage preview is achieved by adding annotations to the header of the ETS file @Entry the project

Which of the following information is included in the module.json5 configuration file?

A.

ability

B.

Module Name

C.

The version number of the app

D.

Module type

Which of the following descriptions of traditional Bluetooth operation is correct for HarmonyOS devices?

A.

Before you start Bluetooth scanning, you need to register for a broadcastBluetoothRemoteDevice.EVENT_DEVICE_DISOOVERED

B.

can initiate a Bluetooth device scan through the startBtDiscovery() interface

C.

If you want to get the scanned device, you must inherit the onReceiveEvent (CommonEventData data) method that implements the CommonEventSu business scriber class when you register the broadcast, and receive the EVENT_DEVICE_DISCOVERED broadcast

D.

You can use the getLocalName() interface to check whether Bluetooth is turned on

The main function of EventHandler is to deliver InnerEvent events or Runnable tasks to other threads for processing.

A.

IDLE

B.

HIGH

C.

LOW

D.

IMMEDIATE

Which of the following processes does the HarmonyOS data lifecycle consist of?

A.

Data storage

B.

Data Usage

C.

Data generation

D.

Data Transfer

HarmonyOS provides the Al capability of speech recognition, which can use machine learning technology to analyze the content of text messages of users in SMS or chat applications, and identify the user intent represented by the message content.

A.

True

B.

False

When an engineer compiles and builds a HarmonyOS Ability Package (HAP) with debugging signature information in DevEco Studio, he or she needs to apply for a debugging certificate and profile file in advance.

A.

SignAlg

B.

Certpath File

C.

Profile File

D.

Store File