Skip to content

D
Docs

OpenHarmony / Docs
大约 1 年 前同步成功

通知 159
Star 292
Fork 28
D
Docs

体验新版 GitCode，发现更多精彩内容 >>

提交 5c80c1ef 编写于 作者: G Gloria
浏览文件
操作

Update docs against 16493 

Signed-off-by: wusongqing<wusongqing@huawei.com>
上级 9efd4487
隐藏空白更改
内联 并排
Showing with 122 addition and 120 deletion
en/application-dev/reference/apis/js-apis-camera.md
浏览文件 @ 5c80c1ef
......@@ -99,10 +99,10 @@ Defines the camera output capability.
| Name | Type | Mandatory| Description |
| ----------------------------- | -------------------------------------------------- | --- |------------------- |
| previewProfiles | Array<[Profile](#profile)\> | Yes | Supported preview profiles. |
| photoProfiles | Array<[Profile](#profile)\> | Yes | Supported shooting profiles. |
| videoProfiles | Array<[VideoProfile](#videoprofile)\> | Yes | Supported video recording profiles. |
| supportedMetadataObjectTypes | Array<[MetadataObjectType](#metadataobjecttype)\> | Yes | Supported metadata object types.|
| previewProfiles | Array\<[Profile](#profile)\> | Yes | Supported preview profiles. |
| photoProfiles | Array\<[Profile](#profile)\> | Yes | Supported shooting profiles. |
| videoProfiles | Array\<[VideoProfile](#videoprofile)\> | Yes | Supported video recording profiles. |
| supportedMetadataObjectTypes | Array\<[MetadataObjectType](#metadataobjecttype)\> | Yes | Supported metadata object types.|
## CameraErrorCode
......@@ -128,7 +128,7 @@ Implements camera management. Before calling any API in **CameraManager**, you m
### getSupportedCameras
getSupportedCameras(): Array<CameraDevice\>
getSupportedCameras(): Array\<CameraDevice\>
Obtains supported cameras. This API returns the result synchronously.
......@@ -138,7 +138,7 @@ Obtains supported cameras. This API returns the result synchronously.
| Type | Description |
| ----------------------------------------------- | ---------------------------- |
| Array<[CameraDevice](#cameradevice)> | An array of supported cameras. |
| Array\<[CameraDevice](#cameradevice)> | An array of supported cameras. |
**Example**
......@@ -149,7 +149,7 @@ let cameras = cameraManager.getSupportedCameras();
### getSupportedOutputCapability
getSupportedOutputCapability(cameraDevice:CameraDevice): CameraOutputCapability
getSupportedOutputCapability(camera:CameraDevice): CameraOutputCapability
Obtains the output capability supported by a camera. This API returns the result synchronously.
......@@ -459,7 +459,7 @@ try {
### createMetadataOutput
createMetadataOutput(metadataObjectTypes:Array<MetadataObjectType\>): MetadataOutput
createMetadataOutput(metadataObjectTypes:Array\<MetadataObjectType\>): MetadataOutput
Creates a **MetadataOutput** instance. This API returns the result synchronously.
......@@ -469,7 +469,7 @@ Creates a **MetadataOutput** instance. This API returns the result synchronously
| Name | Type | Mandatory| Description |
| -------------------- | -------------------------------------------------- | --- | ---------------------------- |
| metadataObjectTypes | Array<[MetadataObjectType](#metadataobjecttype)\> | Yes | Metadata object types, which are obtained through **getSupportedOutputCapability**.|
| metadataObjectTypes | Array\<[MetadataObjectType](#metadataobjecttype)\> | Yes | Metadata object types, which are obtained through **getSupportedOutputCapability**.|
**Return value**
......@@ -534,7 +534,7 @@ try {
### on('cameraStatus')
on(type: 'cameraStatus', callback: AsyncCallback<CameraStatusInfo\>): void
on(type: 'cameraStatus', callback: AsyncCallback\<CameraStatusInfo\>): void
Listens for camera status changes. This API uses an asynchronous callback to return the result.
......@@ -545,7 +545,7 @@ Listens for camera status changes. This API uses an asynchronous callback to ret
| Name | Type | Mandatory| Description |
| -------- | -----------------| ---- | --------- |
| type | string | Yes | Event type. The value is fixed at **'cameraStatus'**. The event can be listened for when a **CameraManager** instance is obtained. This event is triggered and the corresponding information is returned only when the device is enabled or disabled.|
| callback | AsyncCallback<[CameraStatusInfo](#camerastatusinfo)\> | Yes | Callback used to return the camera status change.| |
| callback | AsyncCallback\<[CameraStatusInfo](#camerastatusinfo)\> | Yes | Callback used to return the camera status change.| |
**Example**
......@@ -558,7 +558,7 @@ cameraManager.on('cameraStatus', (cameraStatusInfo) => {
### on('cameraMute')
on(type: 'cameraMute', callback: AsyncCallback<boolean\>): void
on(type: 'cameraMute', callback: AsyncCallback\<boolean\>): void
Listens for camera mute status changes. This API uses an asynchronous callback to return the result.
......@@ -683,7 +683,7 @@ Provides camera information used in **[CaptureSession](#capturesession)**.
### open
open\(callback: AsyncCallback<void\>\): void
open\(callback: AsyncCallback\<void\>\): void
Opens this camera. This API uses an asynchronous callback to return the result.
......@@ -693,7 +693,7 @@ Opens this camera. This API uses an asynchronous callback to return the result.
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | ------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -719,7 +719,7 @@ cameraInput.open((err) => {
### open
open(): Promise<void\>
open(): Promise\<void\>
Opens this camera. This API uses a promise to return the result.
......@@ -729,7 +729,7 @@ Opens this camera. This API uses a promise to return the result.
| Type | Description |
| -------------- | ----------------------- |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -753,7 +753,7 @@ cameraInput.open().then(() => {
### close
close\(callback: AsyncCallback<void\>\): void
close\(callback: AsyncCallback\<void\>\): void
Closes this camera. This API uses an asynchronous callback to return the result.
......@@ -763,7 +763,7 @@ Closes this camera. This API uses an asynchronous callback to return the result.
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | -------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -787,7 +787,7 @@ cameraInput.close((err) => {
### close
close(): Promise<void\>
close(): Promise\<void\>
Closes this camera. This API uses a promise to return the result.
......@@ -797,7 +797,7 @@ Closes this camera. This API uses a promise to return the result.
| Type | Description |
| -------------- | ----------------------- |
| Promise<void\>| Promise used to return the result.|
| Promise\<void\> | Promise used to return the result.|
**Error codes**
......@@ -819,7 +819,7 @@ cameraInput.close().then(() => {
### on('error')
on(type: 'error', cameraDevice:CameraDevice, callback: ErrorCallback<BusinessError\>): void
on(type: 'error', camera:CameraDevice, callback: ErrorCallback\<BusinessError\>): void
Listens for **CameraInput** errors. This API uses a callback to return the result.
......@@ -831,7 +831,7 @@ Listens for **CameraInput** errors. This API uses a callback to return the resul
| -------- | -------------------------------- | --- | ------------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'error'**. The event can be listened for when a **CameraInput** instance is created. This event is triggered and the result is returned when an error occurs on the camera. For example, if the device is unavailable or a conflict occurs, the error information is returned.|
| cameraDevice | [CameraDevice](#cameradevice) | Yes | **CameraDevice** object.|
| callback | ErrorCallback<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
| callback | ErrorCallback\<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
**Example**
......@@ -875,7 +875,7 @@ Enumerates the focus modes.
| Name | Value | Description |
| -------------------------- | ---- | ------------ |
| FOCUS_MODE_MANUAL | 0 | Manual focus. The focal length of the camera can be manually set to change the focus position. However, the focal point cannot be set. |
| FOCUS_MODE_MANUAL | 0 | Manual focus. The focal length of the camera can be manually set to change the focus position. However, the focal point cannot be set. |
| FOCUS_MODE_CONTINUOUS_AUTO | 1 | Continuous auto focus. The focal point cannot be set.|
| FOCUS_MODE_AUTO | 2 | Auto focus. The focal point can be set by calling [setFocusPoint](#setfocuspoint), and auto focus is performed once based on the focal point. After the auto focus operation is complete (regardless of whether the focus is successful or fails), the focus mode is locked. To enable the camera to initiate another auto focus, the application must call **CONTINUOUS_AUTO** again. |
| FOCUS_MODE_LOCKED | 3 | Focus locked. The focal point cannot be set. |
......@@ -945,7 +945,7 @@ try {
### commitConfig
commitConfig(callback: AsyncCallback<void\>): void
commitConfig(callback: AsyncCallback\<void\>): void
Commits the configuration for this **CaptureSession** instance. This API uses an asynchronous callback to return the result.
......@@ -955,7 +955,7 @@ Commits the configuration for this **CaptureSession** instance. This API uses an
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | -------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -980,7 +980,7 @@ captureSession.commitConfig((err) => {
### commitConfig
commitConfig(): Promise<void\>
commitConfig(): Promise\<void\>
Commits the configuration for this **CaptureSession** instance. This API uses a promise to return the result.
......@@ -990,7 +990,7 @@ Commits the configuration for this **CaptureSession** instance. This API uses a
| Type | Description |
| -------------- | ------------------------ |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -1094,7 +1094,7 @@ try {
### addOutput
addOutput(previewOutput: CameraOutput): void
addOutput(cameraOutput: CameraOutput): void
Adds a [CameraOutput](#cameraoutput) instance to the session.
......@@ -1104,7 +1104,7 @@ Adds a [CameraOutput](#cameraoutput) instance to the session.
| Name | Type | Mandatory| Description |
| ------------- | ------------------------------- | ---- | ------------------------ |
| previewOutput | [PreviewOutput](#previewoutput) | Yes | **PreviewOutput** instance to add.|
| cameraOutput | [CameraOutput](#cameraoutput) | Yes | **CameraOutput** instance to add.|
**Return value**
......@@ -1125,7 +1125,7 @@ For details about the error codes, see [CameraErrorCode](#cameraerrorcode).
```js
try {
captureSession.addOutput(previewOutput);
captureSession.addOutput(cameraOutput);
} catch (error) {
// If the operation fails, error.code is returned and processed.
console.log(error.code);
......@@ -1134,7 +1134,7 @@ try {
### removeOutput
removeOutput(previewOutput: CameraOutput): void
removeOutput(cameraOutput: CameraOutput): void
Removes a [CameraOutput](#cameraoutput) instance from the session.
......@@ -1144,7 +1144,7 @@ Removes a [CameraOutput](#cameraoutput) instance from the session.
| Name | Type | Mandatory| Description |
| ------------- | ------------------------------- | ---- | ------------------------ |
| previewOutput | [PreviewOutput](#previewoutput) | Yes | **PreviewOutput** instance to remove.|
| cameraOutput | [CameraOutput](#cameraoutput) | Yes | **CameraOutput** instance to remove.|
**Return value**
......@@ -1174,7 +1174,7 @@ try {
### start
start\(callback: AsyncCallback<void\>\): void
start\(callback: AsyncCallback\<void\>\): void
Starts this **CaptureSession**. This API uses an asynchronous callback to return the result.
......@@ -1184,7 +1184,7 @@ Starts this **CaptureSession**. This API uses an asynchronous callback to return
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | -------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -1209,7 +1209,7 @@ captureSession.start((err) => {
### start
start\(\): Promise<void\>
start\(\): Promise\<void\>
Starts this **CaptureSession**. This API uses a promise to return the result.
......@@ -1219,7 +1219,7 @@ Starts this **CaptureSession**. This API uses a promise to return the result.
| Type | Description |
| -------------- | ------------------------ |
| Promise<void\>| Promise used to return the result.|
| Promise\<void\> | Promise used to return the result.|
**Error codes**
......@@ -1242,7 +1242,7 @@ captureSession.start().then(() => {
### stop
stop\(callback: AsyncCallback<void\>\): void
stop\(callback: AsyncCallback\<void\>\): void
Stops this **CaptureSession**. This API uses an asynchronous callback to return the result.
......@@ -1252,7 +1252,7 @@ Stops this **CaptureSession**. This API uses an asynchronous callback to return
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | ------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -1276,7 +1276,7 @@ captureSession.stop((err) => {
### stop
stop(): Promise<void\>
stop(): Promise\<void\>
Stops this **CaptureSession**. This API uses a promise to return the result.
......@@ -1286,7 +1286,7 @@ Stops this **CaptureSession**. This API uses a promise to return the result.
| Type | Description |
| -------------- | ----------------------- |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -1308,7 +1308,7 @@ captureSession.stop().then(() => {
### release
release\(callback: AsyncCallback<void\>\): void
release\(callback: AsyncCallback\<void\>\): void
Releases this **CaptureSession**. This API uses an asynchronous callback to return the result.
......@@ -1318,7 +1318,7 @@ Releases this **CaptureSession**. This API uses an asynchronous callback to retu
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | -------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -1342,7 +1342,7 @@ captureSession.release((err) => {
### release
release(): Promise<void\>
release(): Promise\<void\>
Releases this **CaptureSession**. This API uses a promise to return the result.
......@@ -1352,7 +1352,7 @@ Releases this **CaptureSession**. This API uses a promise to return the result.
| Type | Description |
| -------------- | ------------------------ |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -1709,7 +1709,7 @@ try {
### getExposureBiasRange
getExposureBiasRange(): Array<number\>
getExposureBiasRange(): Array\<number\>
Obtains the exposure compensation values of the device.
......@@ -1719,7 +1719,7 @@ Obtains the exposure compensation values of the device.
| Type | Description |
| ---------- | ----------------------------- |
| Array<number\> | An array of compensation values. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Array\<number\> | An array of compensation values. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2032,7 +2032,7 @@ try {
### getZoomRatioRange
getZoomRatioRange(): Array<number\>
getZoomRatioRange(): Array\<number\>
Obtains the supported zoom ratio range.
......@@ -2042,7 +2042,7 @@ Obtains the supported zoom ratio range.
| Type | Description |
| ---------- | ----------------------------- |
| Array<number\> | Callback used to return an array containing the minimum and maximum zoom ratios. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Array\<number\> | Callback used to return an array containing the minimum and maximum zoom ratios. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2249,7 +2249,7 @@ try {
### on('focusStateChange')
on(type: 'focusStateChange', callback: AsyncCallback<FocusState\>): void
on(type: 'focusStateChange', callback: AsyncCallback\<FocusState\>): void
Listens for focus state changes. This API uses an asynchronous callback to return the result.
......@@ -2260,7 +2260,7 @@ Listens for focus state changes. This API uses an asynchronous callback to retur
| Name | Type | Mandatory| Description |
| -------- | ----------------------------------------- | ---- | ------------------------ |
| type | string | Yes | Event type. The value is fixed at **'focusStateChange'**. The event can be listened for when a session is created. This event is triggered only when the camera focus state changes in auto focus mode.|
| callback | AsyncCallback<[FocusState](#focusstate)\> | Yes | Callback used to return the focus state change. |
| callback | AsyncCallback\<[FocusState](#focusstate)\> | Yes | Callback used to return the focus state change. |
**Example**
......@@ -2272,7 +2272,7 @@ captureSession.on('focusStateChange', (focusState) => {
### on('error')
on(type: 'error', callback: ErrorCallback<BusinessError\>): void
on(type: 'error', callback: ErrorCallback\<BusinessError\>): void
Listens for **CaptureSession** errors. This API uses a callback to return the errors.
......@@ -2283,7 +2283,7 @@ Listens for **CaptureSession** errors. This API uses a callback to return the er
| Name | Type | Mandatory| Description |
| -------- | ----------------------------------------------------------- | ---- | ------------------------------ |
| type | string | Yes | Event type. The value is fixed at **'error'**. The event can be listened for when a session is created. This event is triggered and the error message is returned when an error occurs during the calling of a session-related API such as **beginConfig()**, **commitConfig()**, and **addInput**.|
| callback | ErrorCallback<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
| callback | ErrorCallback\<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
**Example**
......@@ -2303,7 +2303,7 @@ Implements preview output. It inherits **[CameraOutput](#cameraoutput)**.
### start
start(callback: AsyncCallback<void\>): void
start(callback: AsyncCallback\<void\>): void
Starts to output preview streams. This API uses an asynchronous callback to return the result.
......@@ -2313,7 +2313,7 @@ Starts to output preview streams. This API uses an asynchronous callback to retu
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | -------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2337,7 +2337,7 @@ previewOutput.start((err) => {
### start
start(): Promise<void\>
start(): Promise\<void\>
Starts to output preview streams. This API uses a promise to return the result.
......@@ -2347,7 +2347,7 @@ Starts to output preview streams. This API uses a promise to return the result.
| Type | Description |
| -------------- | ----------------------- |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2369,7 +2369,7 @@ previewOutput.start().then(() => {
### stop
stop(callback: AsyncCallback<void\>): void
stop(callback: AsyncCallback\<void\>): void
Stops outputting preview streams. This API uses an asynchronous callback to return the result.
......@@ -2379,7 +2379,7 @@ Stops outputting preview streams. This API uses an asynchronous callback to retu
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | -------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result.|
**Example**
......@@ -2395,7 +2395,7 @@ previewOutput.stop((err) => {
### stop
stop(): Promise<void\>
stop(): Promise\<void\>
Stops outputting preview streams. This API uses a promise to return the result.
......@@ -2405,7 +2405,7 @@ Stops outputting preview streams. This API uses a promise to return the result.
| Type | Description |
| -------------- | ------------------------ |
| Promise<void\>| Promise used to return the result.|
| Promise\<void\> | Promise used to return the result.|
**Example**
......@@ -2419,7 +2419,7 @@ previewOutput.stop().then(() => {
### release
release(callback: AsyncCallback<void\>): void
release(callback: AsyncCallback\<void\>): void
Releases output resources. This API uses an asynchronous callback to return the result.
......@@ -2429,7 +2429,7 @@ Releases output resources. This API uses an asynchronous callback to return the
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | ------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2453,7 +2453,7 @@ previewOutput.release((err) => {
### release
release(): Promise<void\>
release(): Promise\<void\>
Releases output resources. This API uses a promise to return the result.
......@@ -2463,7 +2463,7 @@ Releases output resources. This API uses a promise to return the result.
| Type | Description |
| -------------- | ----------------------- |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2485,7 +2485,7 @@ previewOutput.release().then(() => {
### on('frameStart')
on(type: 'frameStart', callback: AsyncCallback<void\>): void
on(type: 'frameStart', callback: AsyncCallback\<void\>): void
Listens for preview frame start events. This API uses an asynchronous callback to return the result.
......@@ -2496,7 +2496,7 @@ Listens for preview frame start events. This API uses an asynchronous callback t
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | --------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'frameStart'**. The event can be listened for when a **previewOutput** instance is created. This event is triggered and returned when the bottom layer starts exposure for the first time.|
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. The preview starts as long as this event is returned. |
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. The preview starts as long as this event is returned. |
**Example**
......@@ -2508,7 +2508,7 @@ previewOutput.on('frameStart', () => {
### on('frameEnd')
on(type: 'frameEnd', callback: AsyncCallback<void\>): void
on(type: 'frameEnd', callback: AsyncCallback\<void\>): void
Listens for preview frame end events. This API uses an asynchronous callback to return the result.
......@@ -2519,7 +2519,7 @@ Listens for preview frame end events. This API uses an asynchronous callback to
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | ------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'frameEnd'**. The event can be listened for when a **previewOutput** instance is created. This event is triggered and returned when the last frame of preview ends.|
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. The preview ends as long as this event is returned. |
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. The preview ends as long as this event is returned. |
**Example**
......@@ -2531,7 +2531,7 @@ previewOutput.on('frameEnd', () => {
### on('error')
on(type: 'error', callback: ErrorCallback<BusinessError\>): void
on(type: 'error', callback: ErrorCallback\<BusinessError\>): void
Listens for **PreviewOutput** errors. This API uses a callback to return the errors.
......@@ -2542,7 +2542,7 @@ Listens for **PreviewOutput** errors. This API uses a callback to return the err
| Name | Type | Mandatory| Description |
| -------- | --------------| ---- | ------------------------ |
| type | string | Yes | Event type. The value is fixed at **'error'**. The event can be listened for when a **previewOutput** instance is created. This event is triggered and the corresponding error message is returned when an error occurs during the use of a preview-related API such as **start()** or **release()**.|
| callback | ErrorCallback<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
| callback | ErrorCallback\<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
**Example**
......@@ -2609,7 +2609,7 @@ Implements output information used in a shooting session. This class inherits fr
### capture
capture(callback: AsyncCallback<void\>): void
capture(callback: AsyncCallback\<void\>): void
Captures a photo with the default shooting parameters. This API uses an asynchronous callback to return the result.
......@@ -2619,7 +2619,7 @@ Captures a photo with the default shooting parameters. This API uses an asynchro
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | ------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2644,7 +2644,7 @@ photoOutput.capture((err) => {
### capture
capture(): Promise<void\>
capture(): Promise\<void\>
Captures a photo with the default shooting parameters. This API uses a promise to return the result.
......@@ -2654,7 +2654,7 @@ Captures a photo with the default shooting parameters. This API uses a promise t
| Type | Description |
| -------------- | ------------------------ |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2677,7 +2677,7 @@ photoOutput.capture().then(() => {
### capture
capture(setting: PhotoCaptureSetting, callback: AsyncCallback<void\>): void
capture(setting: PhotoCaptureSetting, callback: AsyncCallback\<void\>): void
Captures a photo with the specified shooting parameters. This API uses an asynchronous callback to return the result.
......@@ -2688,7 +2688,7 @@ Captures a photo with the specified shooting parameters. This API uses an asynch
| Name | Type | Mandatory| Description |
| -------- | ------------------------------------------- | ---- | -------------------- |
| setting | [PhotoCaptureSetting](#photocapturesetting) | Yes | Shooting settings. |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned. |
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned. |
**Error codes**
......@@ -2725,7 +2725,7 @@ photoOutput.capture(settings, (err) => {
### capture
capture(setting?: PhotoCaptureSetting): Promise<void\>
capture(setting?: PhotoCaptureSetting): Promise\<void\>
Captures a photo with the specified shooting parameters. This API uses a promise to return the result.
......@@ -2741,7 +2741,7 @@ Captures a photo with the specified shooting parameters. This API uses a promise
| Type | Description |
| -------------- | ------------------------ |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2785,7 +2785,7 @@ let isSupported = photoOutput.isMirrorSupported();
### release
release(callback: AsyncCallback<void\>): void
release(callback: AsyncCallback\<void\>): void
Releases output resources. This API uses an asynchronous callback to return the result.
......@@ -2795,7 +2795,7 @@ Releases output resources. This API uses an asynchronous callback to return the
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | ------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2819,7 +2819,7 @@ photoOutput.release((err) => {
### release
release(): Promise<void\>
release(): Promise\<void\>
Releases output resources. This API uses a promise to return the result.
......@@ -2829,7 +2829,7 @@ Releases output resources. This API uses a promise to return the result.
| Type | Description |
| -------------- | ----------------------- |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -2851,7 +2851,7 @@ photoOutput.release().then(() => {
### on('captureStart')
on(type: 'captureStart', callback: AsyncCallback<number\>): void
on(type: 'captureStart', callback: AsyncCallback\<number\>): void
Listens for shooting start events. This API uses an asynchronous callback to return the capture ID.
......@@ -2862,7 +2862,7 @@ Listens for shooting start events. This API uses an asynchronous callback to ret
| Name | Type | Mandatory| Description |
| -------- | ---------------------- | ---- | ------------------------------------------ |
| type | string | Yes | Event type. The value is fixed at **'captureStart'**. The event can be listened for when a **photoOutput** instance is created. This event is triggered and returned when the bottom layer starts exposure each time a photo is taken.|
| callback | AsyncCallback<number\> | Yes | Callback used to return the capture ID. |
| callback | AsyncCallback\<number\> | Yes | Callback used to return the capture ID. |
**Example**
......@@ -2874,7 +2874,7 @@ photoOutput.on('captureStart', (captureId) => {
### on('frameShutter')
on(type: 'frameShutter', callback: AsyncCallback<FrameShutterInfo\>): void
on(type: 'frameShutter', callback: AsyncCallback\<FrameShutterInfo\>): void
Listens for frame shutter events. This API uses an asynchronous callback to return the event information.
......@@ -2885,7 +2885,7 @@ Listens for frame shutter events. This API uses an asynchronous callback to retu
| Name | Type | Mandatory| Description |
| -------- | ---------- | --- | ------------------------------------ |
| type | string | Yes | Event type. The value is fixed at **'frameShutter'**. The event can be listened for when a **photoOutput** instance is created.|
| callback | AsyncCallback<[FrameShutterInfo](#frameshutterinfo)\> | Yes | Callback used to return the result. A new photographing request can be delivered as long as this event is returned. |
| callback | AsyncCallback\<[FrameShutterInfo](#frameshutterinfo)\> | Yes | Callback used to return the result. A new photographing request can be delivered as long as this event is returned. |
**Example**
......@@ -2898,7 +2898,7 @@ photoOutput.on('frameShutter', (frameShutterInfo) => {
### on('captureEnd')
on(type: 'captureEnd', callback: AsyncCallback<CaptureEndInfo\>): void
on(type: 'captureEnd', callback: AsyncCallback\<CaptureEndInfo\>): void
Listens for shooting end events. This API uses an asynchronous callback to return the event information.
......@@ -2909,7 +2909,7 @@ Listens for shooting end events. This API uses an asynchronous callback to retur
| Name | Type | Mandatory| Description |
| -------- | --------------- | ---- | ---------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'captureEnd'**. The event can be listened for when a **photoOutput** instance is created. This event is triggered and the corresponding information is returned when the photographing is complete.|
| callback | AsyncCallback<[CaptureEndInfo](#captureendinfo)\> | Yes | Callback used to return the result. |
| callback | AsyncCallback\<[CaptureEndInfo](#captureendinfo)\> | Yes | Callback used to return the result. |
**Example**
......@@ -2922,7 +2922,7 @@ photoOutput.on('captureEnd', (captureEndInfo) => {
### on('error')
on(type: 'error', callback: ErrorCallback<BusinessError\>): void
on(type: 'error', callback: ErrorCallback\<BusinessError\>): void
Listens for **PhotoOutput** errors. This API uses a callback to return the errors.
......@@ -2933,7 +2933,7 @@ Listens for **PhotoOutput** errors. This API uses a callback to return the error
| Name | Type | Mandatory| Description |
| -------- | ------------- | ---- | ----------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'error'**. The event can be listened for when a **photoOutput** instance is created. This event is triggered and the corresponding error message is returned when an error occurs during the calling of a photographing-related API.|
| callback | ErrorCallback<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
| callback | ErrorCallback\<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
**Example**
......@@ -2971,7 +2971,7 @@ Implements output information used in a video recording session. This class inhe
### start
start(callback: AsyncCallback<void\>): void
start(callback: AsyncCallback\<void\>): void
Starts video recording. This API uses an asynchronous callback to return the result.
......@@ -2981,7 +2981,7 @@ Starts video recording. This API uses an asynchronous callback to return the res
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | -------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -3006,7 +3006,7 @@ videoOutput.start((err) => {
### start
start(): Promise<void\>
start(): Promise\<void\>
Starts video recording. This API uses a promise to return the result.
......@@ -3016,7 +3016,7 @@ Starts video recording. This API uses a promise to return the result.
| Type | Description |
| -------------- | ----------------------- |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -3039,7 +3039,7 @@ videoOutput.start().then(() => {
### stop
stop(callback: AsyncCallback<void\>): void
stop(callback: AsyncCallback\<void\>): void
Stops video recording. This API uses an asynchronous callback to return the result.
......@@ -3049,7 +3049,7 @@ Stops video recording. This API uses an asynchronous callback to return the resu
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | ------------------------ |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result.|
**Example**
......@@ -3065,7 +3065,7 @@ videoOutput.stop((err) => {
### stop
stop(): Promise<void\>
stop(): Promise\<void\>
Stops video recording. This API uses a promise to return the result.
......@@ -3075,7 +3075,7 @@ Stops video recording. This API uses a promise to return the result.
| Type | Description |
| -------------- | ----------------------- |
| Promise<void\>| Promise used to return the result.|
| Promise\<void\> | Promise used to return the result.|
**Example**
......@@ -3089,7 +3089,7 @@ videoOutput.stop().then(() => {
### release
release(callback: AsyncCallback<void\>): void
release(callback: AsyncCallback\<void\>): void
Releases output resources. This API uses an asynchronous callback to return the result.
......@@ -3099,7 +3099,7 @@ Releases output resources. This API uses an asynchronous callback to return the
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | ------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -3123,7 +3123,7 @@ videoOutput.release((err) => {
### release
release(): Promise<void\>
release(): Promise\<void\>
Releases output resources. This API uses a promise to return the result.
......@@ -3133,7 +3133,7 @@ Releases output resources. This API uses a promise to return the result.
| Type | Description |
| -------------- | ----------------------- |
| Promise<void\>| Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -3155,7 +3155,7 @@ videoOutput.release().then(() => {
### on('frameStart')
on(type: 'frameStart', callback: AsyncCallback<void\>): void
on(type: 'frameStart', callback: AsyncCallback\<void\>): void
Listens for video recording start events. This API uses an asynchronous callback to return the result.
......@@ -3166,7 +3166,7 @@ Listens for video recording start events. This API uses an asynchronous callback
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | ----------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'frameStart'**. The event can be listened for when a **videoOutput** instance is created. The event is triggered and the corresponding information is returned when the bottom layer starts exposure for the first time.|
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. The recording starts as long as this event is returned. |
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. The recording starts as long as this event is returned. |
**Example**
......@@ -3178,7 +3178,7 @@ videoOutput.on('frameStart', () => {
### on('frameEnd')
on(type: 'frameEnd', callback: AsyncCallback<void\>): void
on(type: 'frameEnd', callback: AsyncCallback\<void\>): void
Listens for video recording stop events. This API uses an asynchronous callback to return the result.
......@@ -3189,7 +3189,7 @@ Listens for video recording stop events. This API uses an asynchronous callback
| Name | Type | Mandatory| Description |
| -------- | -------------------- | ---- | ------------------------------------------ |
| type | string | Yes | Event type. The value is fixed at **'frameEnd'**. The event can be listened for when a **videoOutput** instance is created. This event is triggered and returned when the last frame of recording is complete.|
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. The recording ends as long as this event is returned. |
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. The recording ends as long as this event is returned. |
**Example**
......@@ -3201,7 +3201,7 @@ videoOutput.on('frameEnd', () => {
### on('error')
on(type: 'error', callback: ErrorCallback<BusinessError\>): void
on(type: 'error', callback: ErrorCallback\<BusinessError\>): void
Listens for errors that occur during video recording. This API uses a callback to return the result.
......@@ -3212,7 +3212,7 @@ Listens for errors that occur during video recording. This API uses a callback t
| Name | Type | Mandatory| Description |
| -------- | ----------- | ---- | -------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'error'**. The event can be listened for when a **videoOutput** instance is created. This event is triggered and the corresponding error message is returned when an error occurs during the calling of a recording-related API such as **start()** and **release()**.|
| callback | Callback<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
| callback | Callback\<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
**Example**
......@@ -3228,7 +3228,7 @@ Implements metadata streams. It inherits **[CameraOutput](#cameraoutput)**.
### start
start(callback: AsyncCallback<void\>): void
start(callback: AsyncCallback\<void\>): void
Starts to output metadata. This API uses an asynchronous callback to return the result.
......@@ -3238,7 +3238,7 @@ Starts to output metadata. This API uses an asynchronous callback to return the
| Name | Type | Mandatory| Description |
| -------- | -------------------------- | ---- | ------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -3263,7 +3263,7 @@ metadataOutput.start((err) => {
### start
start(): Promise<void\>
start(): Promise\<void\>
Starts to output metadata. This API uses a promise to return the result.
......@@ -3273,7 +3273,7 @@ Starts to output metadata. This API uses a promise to return the result.
| Type | Description |
| ---------------------- | ------------------------ |
| Promise<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
| Promise\<void\> | Promise used to return the result. If the operation fails, an error code defined in [CameraErrorCode](#cameraerrorcode) is returned.|
**Error codes**
......@@ -3296,7 +3296,7 @@ metadataOutput.start().then(() => {
### stop
stop(callback: AsyncCallback<void\>): void
stop(callback: AsyncCallback\<void\>): void
Stops outputting metadata. This API uses an asynchronous callback to return the result.
......@@ -3306,7 +3306,7 @@ Stops outputting metadata. This API uses an asynchronous callback to return the
| Name | Type | Mandatory| Description |
| -------- | -------------------------- | ---- | ------------------- |
| callback | AsyncCallback<void\> | Yes | Callback used to return the result.|
| callback | AsyncCallback\<void\> | Yes | Callback used to return the result.|
**Example**
......@@ -3322,7 +3322,7 @@ metadataOutput.stop((err) => {
### stop
stop(): Promise<void\>
stop(): Promise\<void\>
Stops outputting metadata. This API uses a promise to return the result.
......@@ -3332,7 +3332,7 @@ Stops outputting metadata. This API uses a promise to return the result.
| Type | Description |
| ---------------------- | --------------------------- |
| Promise<void\> | Promise used to return the result.|
| Promise\<void\> | Promise used to return the result.|
**Example**
......@@ -3346,7 +3346,7 @@ metadataOutput.stop().then(() => {
### on('metadataObjectsAvailable')
on(type: 'metadataObjectsAvailable', callback: AsyncCallback<Array<MetadataObject\>\>): void
on(type: 'metadataObjectsAvailable', callback: AsyncCallback\<Array\<MetadataObject\>\>): void
Listens for metadata objects. This API uses an asynchronous callback to return the result.
......@@ -3357,7 +3357,7 @@ Listens for metadata objects. This API uses an asynchronous callback to return t
| Name | Type | Mandatory| Description |
| -------- | -------------- | ---- | ------------------------------------ |
| type | string | Yes | Event type. The value is fixed at **'metadataObjectsAvailable'**. The event can be listened for when a **metadataOutput** instance is created. This event is triggered and the corresponding metadata is returned when valid metadata is detected.|
| callback | Callback<Array<[MetadataObject](#metadataobject)\>\> | Yes | Callback used to return the metadata.|
| callback | Callback\<Array\<[MetadataObject](#metadataobject)\>\> | Yes | Callback used to return the metadata.|
**Example**
......@@ -3369,7 +3369,7 @@ metadataOutput.on('metadataObjectsAvailable', (metadataObjectArr) => {
### on('error')
on(type: 'error', callback: ErrorCallback<BusinessError\>): void
on(type: 'error', callback: ErrorCallback\<BusinessError\>): void
Listens for metadata errors. This API uses an asynchronous callback to return the result.
......@@ -3380,7 +3380,7 @@ Listens for metadata errors. This API uses an asynchronous callback to return th
| Name | Type | Mandatory| Description |
| -------- | ------------- | ---- | --------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'error'**. The event can be listened for when a **metadataOutput** instance is created. This event is triggered and the corresponding error message is returned when an error occurs during the calling of a metadata-related API such as **start()** and **release()**.|
| callback | Callback<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
| callback | Callback\<BusinessError\> | Yes | Callback used to return an error code defined in [CameraErrorCode](#cameraerrorcode). |
**Example**
......@@ -3417,6 +3417,8 @@ Defines a rectangle.
Implements camera metadata, which is the data source of [CameraInput](#camerainput). The metadata is obtained through metadataOutput.on('metadataObjectsAvailable').
**System capability**: SystemCapability.Multimedia.Camera.Core
| Name | Type | Mandatory | Description |
| -------- | ------------------------------- | ---- | -----------------|
| type | [MetadataObjectType](#metadataobjecttype) | No | Metadata data type. Only face recognition is supported.|
......
Markdown is supported
0% 或 .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑！
想要评论请 注册 或