Pretest Context

PretestContext enables developers to implement the pre-class test module in the flexible classroom, such as check whether the camera, microphone and speaker are working properly.

isBeauty

isBeauty: boolean;

• Since v1.1.5.
• Only applicable to Electron.

Whether the basic image enhancement is enabled.

setBeauty

setBeauty: (isBeauty: boolean) => void;

• Since v1.1.5.
• Only applicable to Electron.

Enables/Disables the basic image enhancement.

Parameter	Description
isBeauty	Whether to enable the image enhancement:

whitening

whitening: number;

• Since v1.1.5.
• Only applicable to Electron.

The brightness value.

buffing

buffing: number;

• Since v1.1.5.
• Only applicable to Electron.

The smoothness value.

ruddy

ruddy: number;

• Since v1.1.5.
• Only applicable to Electron.

The red saturation value.

setWhitening

setWhitening: (whitening: number) => void;

• Since v1.1.5.
• Only applicable to Electron.

Sets the brightness value.

Parameter	Description
whitening	The brightness value The value range is 0 to 100, and the default value is 70.

setBuffing

setBuffing: (buffing: number) => void;

• Since v1.1.5.
• Only applicable to Electron.

Sets the smoothness value.

Parameter	Description
buffing	The smoothness value. The value range is 0 to 100, and the default value is 50.

setRuddy

setRuddy: (ruddy: number) => void;

• Since v1.1.5.
• Only applicable to Electron.

Sets the red saturation value.

Parameter	Description
ruddy	The red saturation value. The value range is 0 to 100, and the default value is 10.

changeTestSpeaker

changeTestSpeaker: (deviceId: string) => Promise<void>;

Since v1.1.5.

Switches the speaker.

Parameter	Description
deviceId	The device ID.

cameraList

cameraList: array,

The camera list.

microphoneList

microphoneList: array,

The microphone list.

speakerList

speakerList: array,

The speaker list.

cameraError

cameraError: boolean,

Whether the camera is working properly.

microphoneError

microphoneError: boolean,

Whether the microphone is working properly.

cameraId

cameraId: string,

The ID of the selected ID.

microphoneId

microphoneId: string,

The ID of the selected microphone.

speakerId

speakerId: string,

The ID of the selected speaker.

isMirror

isMirror: boolean,

Whether the current camera view is mirrored.

setMirror

setMirror(mirror: boolean): void

Whether to mirror the camera view.

microphoneLevel

microphoneLevel: number,

The current volume of the microphone. The value range is 0 to 20.

changeTestSpeakerVolume

async changeTestSpeakerVolume(value: any): void

Adjusts the volume of the speaker.

changeTestMicrophoneVolume

async changeTestMicrophoneVolume(value: any): void

Adjusts the volume of the microphone.

changeTestCamera

async changeTestCamera(deviceId: string): void

Switches the camera.

changeTestMicrophone

async changeTestMicrophone(deviceId: string): void

Switches the microphone.

startPretestCamera

async startPretestCamera(): void

Turn on the camera.

startPretestMicrophone

async startPretestMicrophone(): void

Turn on the microphone.

stopPretestCamera

async stopPretestCamera(): void

Turn off the camera.

stopPretestMicrophone

async stopPretestMicrophone():void

Turn off the microphone.