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MmaliCamera development and interface document update-06
fcb378ec创建于 2023年1月19日历史提交

媒体子系统 JS API 变更 Changelog

OpenHarmony3.2.10.3 相对 OpenHarmony3.2 Beta4 版本，媒体子系统 camera 部件 API 变更如下

cl.subsystemname.1 camera 接口变更

  1. camera 部件在 API9 版本全量改为 SystemAPI
  2. 基于以下原因新增部分功能接口以及废弃部分接口：

提升开发者使用相机接口的便利。 帮助开发者快速掌握相机开发接口，快速投入到开发当中。 易于后续版本中框架功能的扩展，降低框架模块之间的耦合度。

具体参考下方变更内容，开发者需要根据以下说明对应用进行适配。

变更影响

影响 API9 版本的 JS 接口，应用需要进行适配才可以在新版本 SDK 环境正常实现功能。

关键的接口/组件变更

模块名 类名 方法/属性/枚举/常量 是否为 SystemApi 变更类型
ohos.multimedia.camera camera function getCameraManager(context: Context): CameraManager; 是 新增
ohos.multimedia.camera camera function getCameraManager(context: Context, callback: AsyncCallback): void;
function getCameraManager(context: Context): Promise;		 是 废弃
ohos.multimedia.camera CameraErrorCode INVALID_ARGUMENT = 7400101,
OPERATION_NOT_ALLOWED = 7400102,
SESSION_NOT_CONFIG = 7400103,
SESSION_NOT_RUNNING = 7400104,
SESSION_CONFIG_LOCKED = 7400105,
DEVICE_SETTING_LOCKED = 7400106,
CONFILICT_CAMERA = 7400107,
DEVICE_DISABLED = 7400108,
SERVICE_FATAL_ERROR = 7400201		 是 新增
ohos.multimedia.camera CameraManager getSupportedCameras(): Array;
getSupportedOutputCapability(camera: CameraDevice): CameraOutputCapability;
createCameraInput(camera: CameraDevice): CameraInput;
createCameraInput(position: CameraPosition, type: CameraType): CameraInput;
createPreviewOutput(profile: Profile, surfaceId: string): PreviewOutput;
createPhotoOutput(profile: Profile, surfaceId: string): PhotoOutput;
createVideoOutput(profile: VideoProfile, surfaceId: string): VideoOutput;
createMetadataOutput(metadataObjectTypes: Array): MetadataOutput;
createCaptureSession(): CaptureSession;		 是 新增
ohos.multimedia.camera CameraManager getSupportedCameras(callback: AsyncCallback<Array>): void;
getSupportedCameras(): Promise<Array>;
getSupportedOutputCapability(camera: CameraDevice, callback: AsyncCallback): void;
getSupportedOutputCapability(camera: CameraDevice): Promise;
createCameraInput(camera: CameraDevice, callback: AsyncCallback): void;
createCameraInput(camera: CameraDevice): Promise;
createCameraInput(position: CameraPosition, type: CameraType, callback: AsyncCallback): void;
createCameraInput(position: CameraPosition, type: CameraType): Promise;
createPreviewOutput(profile: Profile, surfaceId: string, callback: AsyncCallback): void;
createPreviewOutput(profile: Profile, surfaceId: string): Promise;
createPhotoOutput(profile: Profile, surfaceId: string, callback: AsyncCallback): void;
createPhotoOutput(profile: Profile, surfaceId: string): Promise;
createVideoOutput(profile: VideoProfile, surfaceId: string, callback: AsyncCallback): void;
createVideoOutput(profile: VideoProfile, surfaceId: string): Promise;
createMetadataOutput(metadataObjectTypes: Array, callback: AsyncCallback): void;
createMetadataOutput(metadataObjectTypes: Array): Promise;
createCaptureSession(callback: AsyncCallback): void;
createCaptureSession(): Promise;		 是 废弃
ohos.multimedia.camera CameraType CAMERA_TYPE_DEFAULT = 0 是 新增
ohos.multimedia.camera CameraType CAMERA_TYPE_UNSPECIFIED = 0 是 废弃
ohos.multimedia.camera CameraInput on(type: 'error', camera: CameraDevice, callback: ErrorCallback): void; 是 新增
ohos.multimedia.camera CameraInput release(callback: AsyncCallback): void;
release(): Promise;
on(type: 'error', camera: CameraDevice, callback: ErrorCallback): void;		 是 废弃
ohos.multimedia.camera CameraInputErrorCode ERROR_UNKNOWN = -1
ERROR_NO_PERMISSION = 0
ERROR_DEVICE_PREEMPTED = 1
ERROR_DEVICE_DISCONNECTED = 2
ERROR_DEVICE_IN_USE = 3
ERROR_DRIVER_ERROR = 4		 是 废弃
ohos.multimedia.camera CameraInputError code: CameraInputErrorCode 是 废弃
ohos.multimedia.camera CaptureSession beginConfig(): void;
addInput(cameraInput: CameraInput): void;
removeInput(cameraInput: CameraInput): void;
addOutput(cameraOutput: CameraOutput): void;
removeOutput(cameraOutput: CameraOutput): void;
hasFlash(): boolean;
isFlashModeSupported(flashMode: FlashMode): boolean;
getFlashMode(): FlashMode;
setFlashMode(flashMode: FlashMode): void;
isExposureModeSupported(aeMode: ExposureMode): boolean;
getExposureMode(): ExposureMode;
setExposureMode(aeMode: ExposureMode): void;
getMeteringPoint(): Point;
setMeteringPoint(point: Point): void;
getExposureBiasRange(): Array;
setExposureBias(exposureBias: number): void;
getExposureValue(): number;
isFocusModeSupported(afMode: FocusMode): boolean;
getFocusMode(): FocusMode;
setFocusMode(afMode: FocusMode): void;
setFocusPoint(point: Point): void;
getFocusPoint(): Point;
getFocalLength(): number;
getZoomRatioRange(): Array;
getZoomRatio(): number;
setZoomRatio(zoomRatio: number): void;
isVideoStabilizationModeSupported(vsMode: VideoStabilizationMode): boolean;
getActiveVideoStabilizationMode(): VideoStabilizationMode;
setVideoStabilizationMode(mode: VideoStabilizationMode): void;
on(type: 'error', callback: ErrorCallback): void;		 是 新增
ohos.multimedia.camera CaptureSession beginConfig(callback: AsyncCallback): void;
beginConfig(): Promise;
addInput(cameraInput: CameraInput, callback: AsyncCallback): void;
addInput(cameraInput: CameraInput): Promise;
removeInput(cameraInput: CameraInput, callback: AsyncCallback): void;
removeInput(cameraInput: CameraInput): Promise;
addOutput(cameraOutput: CameraOutput, callback: AsyncCallback): void;
addOutput(cameraOutput: CameraOutput): Promise;
removeOutput(cameraOutput: CameraOutput, callback: AsyncCallback): void;
removeOutput(cameraOutput: CameraOutput): Promise;
hasFlash(callback: AsyncCallback): void;
hasFlash(): Promise;
isFlashModeSupported(flashMode: FlashMode, callback: AsyncCallback): void;
isFlashModeSupported(flashMode: FlashMode): Promise;
getFlashMode(callback: AsyncCallback): void;
getFlashMode(): Promise;
setFlashMode(flashMode: FlashMode, callback: AsyncCallback): void;
setFlashMode(flashMode: FlashMode): Promise;
isExposureModeSupported(aeMode: ExposureMode, callback: AsyncCallback): void;
isExposureModeSupported(aeMode: ExposureMode): Promise;
getExposureMode(callback: AsyncCallback): void;
getExposureMode(): Promise;
setExposureMode(aeMode: ExposureMode, callback: AsyncCallback): void;
setExposureMode(aeMode: ExposureMode): Promise;
getMeteringPoint(callback: AsyncCallback): void;
getMeteringPoint(): Promise;
setMeteringPoint(point: Point, callback: AsyncCallback): void;
setMeteringPoint(point: Point): Promise;
getExposureBiasRange(callback: AsyncCallback<Array>): void;
getExposureBiasRange(): Promise<Array>;
setExposureBias(exposureBias: number, callback: AsyncCallback): void;
setExposureBias(exposureBias: number): Promise;
getExposureValue(callback: AsyncCallback): void;
getExposureValue(): Promise;
isFocusModeSupported(afMode: FocusMode, callback: AsyncCallback): void;
isFocusModeSupported(afMode: FocusMode): Promise;
getFocusMode(callback: AsyncCallback): void;
getFocusMode(): Promise;
setFocusMode(afMode: FocusMode, callback: AsyncCallback): void;
setFocusMode(afMode: FocusMode): Promise;
setFocusPoint(point: Point, callback: AsyncCallback): void;
setFocusPoint(point: Point): Promise;
getFocusPoint(callback: AsyncCallback): void;
getFocusPoint(): Promise;
getFocalLength(callback: AsyncCallback): void;
getFocalLength(): Promise;
getZoomRatioRange(callback: AsyncCallback<Array>): void;
getZoomRatioRange(): Promise<Array>;
getZoomRatio(callback: AsyncCallback): void;
getZoomRatio(): Promise;
setZoomRatio(zoomRatio: number, callback: AsyncCallback): void;
setZoomRatio(zoomRatio: number): Promise;
isVideoStabilizationModeSupported(vsMode: VideoStabilizationMode, callback: AsyncCallback): void;
isVideoStabilizationModeSupported(vsMode: VideoStabilizationMode): Promise;
getActiveVideoStabilizationMode(callback: AsyncCallback): void;
getActiveVideoStabilizationMode(): Promise;
setVideoStabilizationMode(mode: VideoStabilizationMode, callback: AsyncCallback): void;
setVideoStabilizationMode(mode: VideoStabilizationMode): Promise;
on(type: 'error', callback: ErrorCallback): void;		 是 废弃
ohos.multimedia.camera CaptureSessionErrorCode ERROR_UNKNOWN = -1
ERROR_INSUFFICIENT_RESOURCES = 0
ERROR_TIMEOUT = 1		 是 废弃
ohos.multimedia.camera CaptureSessionError code: CaptureSessionErrorCode 是 废弃
ohos.multimedia.camera PreviewOutput on(type: 'error', callback: ErrorCallback): void; 是 新增
ohos.multimedia.camera PreviewOutput on(type: 'error', callback: ErrorCallback): void; 是 废弃
ohos.multimedia.camera PreviewOutputErrorCode ERROR_UNKNOWN = -1 是 废弃
ohos.multimedia.camera PreviewOutputError code: PreviewOutputErrorCode 是 废弃
ohos.multimedia.camera PhotoOutput capture(): Promise;
isMirrorSupported(): boolean;
on(type: 'error', callback: ErrorCallback): void;		 是 新增
ohos.multimedia.camera PhotoOutput isMirrorSupported(callback: AsyncCallback): void;
isMirrorSupported(): Promise;
on(type: 'error', callback: ErrorCallback): void;		 是 废弃
ohos.multimedia.camera PhotoOutputErrorCode ERROR_UNKNOWN = -1
ERROR_DRIVER_ERROR = 0
ERROR_INSUFFICIENT_RESOURCES = 1
ERROR_TIMEOUT = 2		 是 废弃
ohos.multimedia.camera PhotoOutputError code: PhotoOutputErrorCode 是 废弃
ohos.multimedia.camera VideoOutput on(type: 'error', callback: ErrorCallback): void; 是 新增
ohos.multimedia.camera VideoOutput on(type: 'error', callback: ErrorCallback): void; 是 废弃
ohos.multimedia.camera VideoOutputErrorCode ERROR_UNKNOWN = -1
ERROR_DRIVER_ERROR = 0		 是 废弃
ohos.multimedia.camera VideoOutputError code: VideoOutputErrorCode 是 废弃
ohos.multimedia.camera MetadataObject readonly type: MetadataObjectType;
readonly timestamp: number;		 是 新增
ohos.multimedia.camera MetadataObject getType(callback: AsyncCallback): void;
getType(): Promise;
getTimestamp(callback: AsyncCallback): void;
getTimestamp(): Promise;
getBoundingBox(callback: AsyncCallback): void;
getBoundingBox(): Promise;		 是 废弃
ohos.multimedia.camera MetadataFaceObject readonly boundingBox: Rect 是 新增
ohos.multimedia.camera MetadataOutput on(type: 'error', callback: ErrorCallback): void; 是 新增
ohos.multimedia.camera MetadataOutput on(type: 'error', callback: ErrorCallback): void; 是 废弃
ohos.multimedia.camera MetadataOutputErrorCode ERROR_UNKNOWN = -1
ERROR_INSUFFICIENT_RESOURCES = 0		 是 废弃
ohos.multimedia.camera MetadataOutputError code: MetadataOutputErrorCode 是 废弃

适配指导

除新增接口，和废弃接口之外，开发者需要关注变更的接口的适配：

从 Beta4 版本开始，对以下接口进行调整：

新增接口

  1. CameraErrorCode 枚举

    枚举值名称：INVALID_ARGUMENT， 值：7400101;

    枚举值名称：OPERATION_NOT_ALLOWED， 值：7400102;

    枚举值名称：SESSION_NOT_CONFIG， 值：7400103;

    枚举值名称：SESSION_NOT_RUNNING， 值：7400104;

    枚举值名称：SESSION_CONFIG_LOCKED， 值：7400105;

    枚举值名称：DEVICE_SETTING_LOCKED， 值：7400106;

    枚举值名称：CONFILICT_CAMERA， 值：7400107;

    枚举值名称：DEVICE_DISABLED， 值：7400108;

    枚举值名称：SERVICE_FATAL_ERROR， 值：7400201;

  2. PhotoOutput 接口新增 capture(): Promise;

  3. MetadataObject 接口中新增 readonly type: MetadataObjectType;

  4. MetadataObject 接口中新增 readonly timestamp: number;

  5. MetadataObject 接口中新增 readonly boundingBox: Rect;

废弃接口

  1. CameraInput 中废弃接口 release(callback: AsyncCallback): void; 以及 release(): Promise;

  2. 废弃枚举 CameraInputErrorCode 以及所有它里边的枚举值（ERROR_UNKNOWN = -1，ERROR_NO_PERMISSION = 0，ERROR_DEVICE_PREEMPTED = 1，ERROR_DEVICE_DISCONNECTED = 2，ERROR_DEVICE_IN_USE = 3，ERROR_DRIVER_ERROR = 4）;

  3. 废弃接口 CameraInputError 以及接口属性 code:CameraInputErrorCode;

  4. 废弃枚举 CaptureSessionErrorCode 以及所有它里边的枚举值（ERROR_UNKNOWN = -1，ERROR_INSUFFICIENT_RESOURCES = 0，ERROR_TIMEOUT = 1）;

  5. 废弃接口 CaptureSessionError 以及接口属性 code: CaptureSessionErrorCode;

  6. 废弃枚举 PreviewOutputErrorCode 以及所有它里边的枚举值（ERROR_UNKNOWN = -1）;

  7. 废弃接口 PreviewOutputError 以及接口属性 code: PreviewOutputErrorCode;

  8. 废弃枚举 PhotoOutputErrorCode 以及所有它里边的枚举值（ERROR_UNKNOWN = -1，ERROR_DRIVER_ERROR = 0，ERROR_INSUFFICIENT_RESOURCES = 1，ERROR_TIMEOUT = 2）;

  9. 废弃接口 PhotoOutputError 以及接口属性 code:PhotoOutputErrorCode;

  10. 废弃枚举 VideoOutputErrorCode 以及所有它里边的枚举值（ERROR_UNKNOWN = -1，ERROR_DRIVER_ERROR = 0）;

  11. 废弃接口 VideoOutputError 以及接口属性 code:VideoOutputErrorCode;

  12. 废弃接口 MetadataObject 中 getType(callback: AsyncCallback): void;

  13. 废弃接口 MetadataObject 中 getType(): Promise;

  14. 废弃接口 MetadataObject 中 getTimestamp(callback: AsyncCallback): void;

  15. 废弃接口 MetadataObject 中 getTimestamp(): Promise;

  16. 废弃接口 MetadataObject 中 getBoundingBox(callback: AsyncCallback): void;

  17. 废弃接口 MetadataObject 中 getBoundingBox(): Promise;

  18. 废弃枚举 MetadataOutputErrorCode 以及所有它里边的枚举值（ERROR_UNKNOWN = -1，ERROR_INSUFFICIENT_RESOURCES = 0）;

  19. 废弃接口 MetadataOutputError 以及接口属性 code:MetadataOutputErrorCode;

接口变更

  1. camera 模块中接口 getCameraManager 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getCameraManager(context: Context, callback: AsyncCallback): void; 以及 getCameraManager(context: Context): Promise; 变更为 getCameraManager(context: Context): CameraManager;

    参考代码如下：

    let cameraManager = camera.getCameraManager(context);

  2. CameraManager 中接口 getSupportedCameras 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getSupportedCameras(callback: AsyncCallback<Array>): void; 以及 getSupportedCameras(): Promise<Array>; 变更为 getSupportedCameras(): Array;

    参考代码如下：

    let cameras = cameraManager.getSupportedCameras();

  3. CameraManager 中接口 getSupportedOutputCapability 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getSupportedOutputCapability(camera: CameraDevice, callback: AsyncCallback): void; 以及 getSupportedOutputCapability(camera: CameraDevice): Promise; 变更为 getSupportedOutputCapability(camera: CameraDevice): CameraOutputCapability;

    参考代码如下：

    let cameraDevice = cameras[0];
let CameraOutputCapability = cameraManager.getSupportedOutputCapability(cameraDevice);

  4. CameraManager 中接口 createCameraInput(camera: CameraDevice) 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 createCameraInput(camera: CameraDevice, callback: AsyncCallback): void; 以及 createCameraInput(camera: CameraDevice): Promise; 变更为 createCameraInput(camera: CameraDevice): CameraInput;

    参考代码如下：

    let cameraDevice = cameras[0];
let cameraInput = cameraManager.createCameraInput(cameraDevice);

  5. CameraManager 中接口 createCameraInput(position: CameraPosition, type: CameraType) 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 createCameraInput(position: CameraPosition, type: CameraType, callback: AsyncCallback): void; 以及 createCameraInput(position: CameraPosition, type: CameraType): Promise; 变更为 createCameraInput(position: CameraPosition, type: CameraType): CameraInput;

    参考代码如下：

    let cameraDevice = cameras[0];
let position = cameraDevice.cameraPosition;
let type = cameraDevice.cameraType;
let cameraInput = cameraManager.createCameraInput(position, type);

  6. CameraManager 中接口 createPreviewOutput 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 createPreviewOutput(profile: Profile, surfaceId: string, callback: AsyncCallback): void; 以及 createPreviewOutput(profile: Profile, surfaceId: string): Promise; 变更为 createPreviewOutput(profile: Profile, surfaceId: string): PreviewOutput;

    参考代码如下：

    let profile = cameraoutputcapability.previewProfiles[0];
let previewOutput = cameraManager.createPreviewOutput(profile, surfaceId);

  7. CameraManager 中接口 createPhotoOutput 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 createPhotoOutput(profile: Profile, surfaceId: string, callback: AsyncCallback): void; 以及 createPhotoOutput(profile: Profile, surfaceId: string): Promise; 变更为 createPhotoOutput(profile: Profile, surfaceId: string): PhotoOutput;

    参考代码如下：

    let profile = cameraoutputcapability.photoProfiles[0];
let photoOutput = cameraManager.createPhotoOutput(profile, surfaceId);

  8. CameraManager 中接口 createVideoOutput 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 createVideoOutput(profile: VideoProfile, surfaceId: string, callback: AsyncCallback): void; 以及 createVideoOutput(profile: VideoProfile, surfaceId: string): Promise; 变更为 createVideoOutput(profile: VideoProfile, surfaceId: string): VideoOutput;

    参考代码如下：

    let profile = cameraoutputcapability.videoProfiles[0];
let videoOutput = cameraManager.createVideoOutput(profile, surfaceId);

  9. CameraManager 中接口 createMetadataOutput 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 createMetadataOutput(metadataObjectTypes: Array, callback: AsyncCallback): void; 以及 createMetadataOutput(metadataObjectTypes: Array): Promise; 变更为 createMetadataOutput(metadataObjectTypes: Array): MetadataOutput;

    参考代码如下：

    let metadataObjectTypes = cameraoutputcapability.supportedMetadataObjectTypes;
let metadataOutput = cameraManager.createMetadataOutput(metadataObjectTypes);

  10. CameraManager 中接口 createCaptureSession 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 createCaptureSession(callback: AsyncCallback): void; 以及 createCaptureSession(): Promise; 变更为 createCaptureSession(): CaptureSession;

参考代码如下：

let captureSession = cameraManager.createCaptureSession();

  1. 枚举 CameraType 中，枚举值名称 CAMERA_TYPE_UNSPECIFIED 变更为 CAMERA_TYPE_DEFAULT。

  2. CameraInput 中，on 接口返回值类型由 CameraInputError 变更为 BusinessError，因此旧接口 on(type: 'error', camera: CameraDevice, callback: ErrorCallback): void; 变更为 on(type: 'error', camera: CameraDevice, callback: ErrorCallback): void;

参考代码如下：

let cameraDevice = cameras[0];
cameraInput.on('error', cameraDevice, (BusinessError) => {

})
  1. CaptureSession 中接口 beginConfig 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 beginConfig(callback: AsyncCallback): void; 以及 beginConfig(): Promise; 变更为 beginConfig(): void;

参考代码如下：

captureSession.beginConfig();
  1. CaptureSession 中接口 addInput 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 addInput(cameraInput: CameraInput, callback: AsyncCallback): void; 以及 addInput(cameraInput: CameraInput): Promise; 变更为 addInput(cameraInput: CameraInput): void;

参考代码如下：

captureSession.addInput(cameraInput);
  1. CaptureSession 中接口 removeInput 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 removeInput(cameraInput: CameraInput, callback: AsyncCallback): void; 以及 removeInput(cameraInput: CameraInput): Promise; 变更为 removeInput(cameraInput: CameraInput): void;

参考代码如下：

captureSession.removeInput(cameraInput);
  1. CaptureSession 中接口 addOutput 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 addOutput(cameraOutput: CameraOutput, callback: AsyncCallback): void; 以及 addOutput(cameraOutput: CameraOutput): Promise; 变更为 addOutput(cameraOutput: CameraOutput): void;

参考代码如下：

captureSession.addOutput(previewOutput);
  1. CaptureSession 中接口 removeOutput 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 removeOutput(cameraOutput: CameraOutput, callback: AsyncCallback): void; 以及 removeOutput(cameraOutput: CameraOutput): Promise; 变更为 removeOutput(cameraOutput: CameraOutput): void;

参考代码如下：

captureSession.removeOutput(previewOutput);
  1. CaptureSession 中接口 hasFlash 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 hasFlash(callback: AsyncCallback): void; 以及 hasFlash(): Promise; 变更为 hasFlash(): boolean;

参考代码如下：

let status = captureSession.hasFlash();
  1. CaptureSession 中接口 isFlashModeSupported 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 isFlashModeSupported(flashMode: FlashMode, callback: AsyncCallback): void; 以及 isFlashModeSupported(flashMode: FlashMode): Promise; 变更为 isFlashModeSupported(flashMode: FlashMode): boolean;

参考代码如下：

let status = captureSession.isFlashModeSupported(camera.FlashMode.FLASH_MODE_AUTO);
  1. CaptureSession 中接口 getFlashMode 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getFlashMode(callback: AsyncCallback): void; 以及 getFlashMode(): Promise; 变更为 getFlashMode(): FlashMode;

参考代码如下：

let flashMode = captureSession.getFlashMode();
  1. CaptureSession 中接口 isExposureModeSupported 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 isExposureModeSupported(aeMode: ExposureMode, callback: AsyncCallback): void; 以及 isExposureModeSupported(aeMode: ExposureMode): Promise; 变更为 isExposureModeSupported(aeMode: ExposureMode): boolean;

参考代码如下：

let isSupported = captureSession.isExposureModeSupported(camera.ExposureMode.EXPOSURE_MODE_LOCKED);
  1. CaptureSession 中接口 getExposureMode 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getExposureMode(callback: AsyncCallback): void; 以及 getExposureMode(): Promise; 变更为 getExposureMode(): ExposureMode;

参考代码如下：

let exposureMode = captureSession.getExposureMode();
  1. CaptureSession 中接口 setExposureMode 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 setExposureMode(aeMode: ExposureMode, callback: AsyncCallback): void; 以及 setExposureMode(aeMode: ExposureMode): Promise; 变更为 setExposureMode(aeMode: ExposureMode): void;

参考代码如下：

captureSession.setExposureMode(camera.ExposureMode.EXPOSURE_MODE_LOCKED);
  1. CaptureSession 中接口 getMeteringPoint 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getMeteringPoint(callback: AsyncCallback): void; 以及 getMeteringPoint(): Promise; 变更为 getMeteringPoint(): Point;

参考代码如下：

let exposurePoint = captureSession.getMeteringPoint();
  1. CaptureSession 中接口 setMeteringPoint 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 setMeteringPoint(point: Point, callback: AsyncCallback): void; 以及 setMeteringPoint(point: Point): Promise; 变更为 setMeteringPoint(point: Point): void;

参考代码如下：

let Point2 = {x: 2, y: 2};
captureSession.setMeteringPoint(Point2);
  1. CaptureSession 中接口 getExposureBiasRange 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getExposureBiasRange(callback: AsyncCallback<Array>): void; 以及 getExposureBiasRange(): Promise<Array>; 变更为 getExposureBiasRange(): Array;

参考代码如下：

let biasRangeArray = captureSession.getExposureBiasRange();
  1. CaptureSession 中接口 setExposureBias 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 setExposureBias(exposureBias: number, callback: AsyncCallback): void; 以及 setExposureBias(exposureBias: number): Promise; 变更为 setExposureBias(exposureBias: number): void;

参考代码如下：

let exposureBias = biasRangeArray[0];
captureSession.setExposureBias(exposureBias);
  1. CaptureSession 中接口 getExposureValue 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getExposureValue(callback: AsyncCallback): void; 以及 getExposureValue(): Promise; 变更为 getExposureValue(): number;

参考代码如下：

let exposureValue = captureSession.getExposureValue();
  1. CaptureSession 中接口 isFocusModeSupported 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 isFocusModeSupported(afMode: FocusMode, callback: AsyncCallback): void; 以及 isFocusModeSupported(afMode: FocusMode): Promise; 变更为 isFocusModeSupported(afMode: FocusMode): boolean;

参考代码如下：

let status = captureSession.isFocusModeSupported(camera.FocusMode.FOCUS_MODE_AUTO);
  1. CaptureSession 中接口 getFocusMode 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getFocusMode(callback: AsyncCallback): void; 以及 getFocusMode(): Promise; 变更为 getFocusMode(): FocusMode;

参考代码如下：

let afMode = captureSession.getFocusMode();
  1. CaptureSession 中接口 setFocusMode 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 setFocusMode(afMode: FocusMode, callback: AsyncCallback): void; 以及 setFocusMode(afMode: FocusMode): Promise; 变更为 setFocusMode(afMode: FocusMode): void;

参考代码如下：

captureSession.setFocusMode(camera.FocusMode.FOCUS_MODE_AUTO);
  1. CaptureSession 中接口 setFocusPoint 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 setFocusPoint(point: Point, callback: AsyncCallback): void; 以及 setFocusPoint(point: Point): Promise; 变更为 setFocusPoint(point: Point): void;

参考代码如下：

let Point2 = {x: 2, y: 2};
captureSession.setFocusPoint(Point2);
  1. CaptureSession 中接口 getFocusPoint 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getFocusPoint(callback: AsyncCallback): void; 以及 getFocusPoint(): Promise; 变更为 getFocusPoint(): Point;

参考代码如下：

let point = captureSession.getFocusPoint();
  1. CaptureSession 中接口 getFocalLength 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getFocalLength(callback: AsyncCallback): void; 以及 getFocalLength(): Promise; 变更为 getFocalLength(): number;

参考代码如下：

let focalLength = captureSession.getFocalLength();
  1. CaptureSession 中接口 getZoomRatioRange 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getZoomRatioRange(callback: AsyncCallback<Array>): void; 以及 getZoomRatioRange(): Promise<Array>; 变更为 getZoomRatioRange(): Array;

参考代码如下：

let zoomRatioRange = captureSession.getZoomRatioRange();
  1. CaptureSession 中接口 getZoomRatio 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getZoomRatio(callback: AsyncCallback): void; 以及 getZoomRatio(): Promise; 变更为 getZoomRatio(): number;

参考代码如下：

let zoomRatio = captureSession.getZoomRatio();
  1. CaptureSession 中接口 setZoomRatio 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 setZoomRatio(zoomRatio: number, callback: AsyncCallback): void; 以及 setZoomRatio(zoomRatio: number): Promise; 变更为 setZoomRatio(zoomRatio: number): void;

参考代码如下：

let zoomRatio = zoomRatioRange[0];
captureSession.setZoomRatio(zoomRatio);
  1. CaptureSession 中接口 isVideoStabilizationModeSupported 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 isVideoStabilizationModeSupported(vsMode: VideoStabilizationMode, callback: AsyncCallback): void; 以及 isVideoStabilizationModeSupported(vsMode: VideoStabilizationMode): Promise; 变更为 isVideoStabilizationModeSupported(vsMode: VideoStabilizationMode): boolean;

参考代码如下：

let isSupported = captureSession.isVideoStabilizationModeSupported(camera.VideoStabilizationMode.OFF);
  1. CaptureSession 中接口 getActiveVideoStabilizationMode 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 getActiveVideoStabilizationMode(callback: AsyncCallback): void; 以及 getActiveVideoStabilizationMode(): Promise; 变更为 getActiveVideoStabilizationMode(): VideoStabilizationMode;

参考代码如下：

let vsMode = captureSession.getActiveVideoStabilizationMode();
  1. CaptureSession 中接口 setVideoStabilizationMode 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 setVideoStabilizationMode(mode: VideoStabilizationMode, callback: AsyncCallback): void; 以及 setVideoStabilizationMode(mode: VideoStabilizationMode): Promise; 变更为 setVideoStabilizationMode(mode: VideoStabilizationMode): void;

参考代码如下：

captureSession.setVideoStabilizationMode(camera.VideoStabilizationMode.OFF);
  1. CaptureSession 中，on(type: 'error') callback 类型由 ErrorCallback 变更为 ErrorCallback，因此旧接口 on(type: 'error', callback: ErrorCallback): void; 变更为 on(type: 'error', callback: ErrorCallback): void;

参考代码如下：

captureSession.on('error', (BusinessError) => {

})
  1. PreviewOutput 中，on(type: 'error') callback 类型由 ErrorCallback 变更为 ErrorCallback，因此旧接口 on(type: 'error', callback: ErrorCallback): void; 变更为 on(type: 'error', callback: ErrorCallback): void;

参考代码如下：

previewOutput.on('error', (BusinessError) => {

})
  1. PhotoOutput 中接口 isMirrorSupported 返回方式由异步 callback 跟异步 promise 变更为同步返回，因此旧接口 isMirrorSupported(callback: AsyncCallback): void; 以及 isMirrorSupported(): Promise; 变更为 isMirrorSupported(): boolean;

参考代码如下：

let isSupported = photoOutput.isMirrorSupported();
  1. PhotoOutput 中，on(type: 'error') callback 类型由 ErrorCallback 变更为 ErrorCallback，因此旧接口 on(type: 'error', callback: ErrorCallback): void; 变更为 on(type: 'error', callback: ErrorCallback): void;

参考代码如下：

PhotoOutput.on('error', (BusinessError) => {

})
  1. VideoOutput 中，on(type: 'error') callback 类型由 ErrorCallback 变更为 ErrorCallback，因此旧接口 on(type: 'error', callback: ErrorCallback): void; 变更为 on(type: 'error', callback: ErrorCallback): void;

参考代码如下：

VideoOutput.on('error', (BusinessError) => {

})
  1. MetadataOutput 中，on(type: 'error') callback 类型由 ErrorCallback 变更为 ErrorCallback，因此旧接口 on(type: 'error', callback: ErrorCallback): void; 变更为 on(type: 'error', callback: ErrorCallback): void;

参考代码如下：

MetadataOutput.on('error', (BusinessError) => {

})