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提交 2b71e9e4 编写于 作者: G Gloria
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Update docs against 15478 

Signed-off-by: wusongqing<wusongqing@huawei.com>
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en/application-dev/reference/apis/js-apis-camera.md
浏览文件 @ 2b71e9e4
......@@ -477,10 +477,10 @@ Listens for camera status changes. This API uses an asynchronous callback to ret
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ----------------------------------------------------- | ---- | --------- |
| type | string | Yes | Event type. The value is fixed at **'cameraStatus'**. The callback function returns the camera information, including the device and device status (available or unavailable). The event can be listened for only when a **CameraManager** instance is obtained.|
| callback | AsyncCallback<[CameraStatusInfo](#camerastatusinfo)\> | Yes | Callback used to return the camera status change. |
| 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.| |
**Example**
......@@ -505,8 +505,8 @@ This is a system API.
| Name | Type | Mandatory| Description |
| -------- | --------------- | ---- | --------- |
| type | string | Yes | Event type. The value is fixed at **'cameraMute'**. The callback function returns the mute status changes. The event can be listened for only when a **CameraManager** instance is obtained.|
| callback | AsyncCallback\<boolean> | Yes | Callback used to return the camera mute status. |
| type | string | Yes | Event type. The value is fixed at **'cameraMute'**, indicating the camera mute status. The event can be listened for when a **CameraManager** instance is obtained. This event is triggered and the status is returned when the camera is enabled or disabled.|
| callback | AsyncCallback\<boolean> | Yes | Callback used to return the mute status. The value **true** means that the camera is enabled, and **false** means that the camera is disabled. |
**Example**
......@@ -728,7 +728,7 @@ Listens for **CameraInput** errors. This API uses a callback to return the resul
| Name | Type | Mandatory| Description |
| -------- | -------------------------------- | --- | ------------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'error'**. The callback function returns an error code, for example, an error code indicating that the device is unavailable or a conflict occurs. The event can be listened for only when a **CameraInput** instance is obtained.|
| 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). |
......@@ -1392,7 +1392,7 @@ try {
setMeteringPoint(point: Point): void
Sets the metering point for the device.
Sets the metering point, which is the center point of the metering rectangle.
**System capability**: SystemCapability.Multimedia.Camera.Core
......@@ -1449,7 +1449,7 @@ try {
setExposureBias(exposureBias: number): void
Sets an exposure compensation value for the device.
Sets an exposure compensation value (EV).
Before the setting, you are advised to use **[getExposureBiasRange](#getexposurebiasrange)** to obtain the supported values.
......@@ -1591,7 +1591,7 @@ try {
setFocusPoint(point: Point): void
Sets a focal point for the device.
Sets the focal point.
**System capability**: SystemCapability.Multimedia.Camera.Core
......@@ -1698,7 +1698,7 @@ try {
setZoomRatio(zoomRatio: number): void
Sets a zoom ratio for the device.
Sets a zoom ratio.
**System capability**: SystemCapability.Multimedia.Camera.Core
......@@ -1850,7 +1850,7 @@ 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 callback function returns the focus state change. The event can be listened for only when the session is created.|
| 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. |
**Example**
......@@ -1873,7 +1873,7 @@ 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 callback function returns the error code corresponding to an error that occurs during the call of a **CaptureSession** API, for example, **beginConfig()**, **commitConfig()**, or **addInput()**.|
| 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). |
**Example**
......@@ -2054,8 +2054,8 @@ 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 callback is invoked when the preview on the first frame starts. This event can be listened for only when a **previewOutput** instance is created.|
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. |
| 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. |
**Example**
......@@ -2077,8 +2077,8 @@ 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 callback is invoked when the preview on the last frame ends. This event can be listened for only when a **previewOutput** instance is created.|
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. |
| 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. |
**Example**
......@@ -2098,9 +2098,9 @@ Listens for **PreviewOutput** errors. This API uses a callback to return the err
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ----------------------------------------------------------------- | ---- | ------------------------ |
| type | string | Yes | Event type. The value is fixed at **'error'**. The callback function returns the error code corresponding to an error that occurs during the call of a **PreviewOutput** API, for example, **start()** or **release()**.|
| 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). |
**Example**
......@@ -2367,7 +2367,7 @@ 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 callback function returns the shooting start event.|
| 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. |
**Example**
......@@ -2388,10 +2388,10 @@ Listens for frame shutter events. This API uses an asynchronous callback to retu
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ----------------------------------------------------- | --- | ------------------------------------ |
| type | string | Yes | Event type. The value is fixed at **'frameShutter'**. The callback function returns the captured frame information (captureId and time).|
| callback | AsyncCallback<[FrameShutterInfo](#frameshutterinfo)\> | Yes | Callback used to return the result. |
| 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. |
**Example**
......@@ -2412,9 +2412,9 @@ Listens for shooting end events. This API uses an asynchronous callback to retur
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ------------------------------------------------- | ---- | ---------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'captureEnd'**. The callback function returns the shooting end event.|
| 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. |
**Example**
......@@ -2436,9 +2436,9 @@ Listens for **PhotoOutput** errors. This API uses a callback to return the error
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ----------------------------------------------------- | ---- | ----------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'error'**. The callback function returns an error code when an API call fails.|
| 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). |
**Example**
......@@ -2638,8 +2638,8 @@ 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 callback is invoked when the recording on the first frame of an image starts.|
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. |
| 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. |
**Example**
......@@ -2661,8 +2661,8 @@ 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 callback is invoked when the recording on the last frame of an image stops.|
| callback | AsyncCallback<void\> | Yes | Callback used to return the result. |
| 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. |
**Example**
......@@ -2682,9 +2682,9 @@ Listens for errors that occur during video recording. This API uses a callback t
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ------------------------------------------------ | ---- | -------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'error'**. The callback function returns the error code corresponding to an error that occurs during the call of a **VideoOutput** API, for example, **start()** or **release()**.|
| 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). |
**Example**
......@@ -2809,9 +2809,9 @@ Listens for metadata objects. This API uses an asynchronous callback to return t
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ------------------------------------------------ | ---- | ------------------------------------ |
| type | string | Yes | Event type. The value is fixed at **'metadataObjectsAvailable'**. The callback function returns the valid metadata. This event can be listened for only when a **MetadataOutput** instance is created.|
| 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.|
**Example**
......@@ -2832,9 +2832,9 @@ Listens for metadata errors. This API uses an asynchronous callback to return th
**Parameters**
| Name | Type | Mandatory| Description |
| -------- | ------------------------------------------------ | ---- | --------------------------------------- |
| type | string | Yes | Event type. The value is fixed at **'error'**. The callback function returns the error code corresponding to an error that occurs during the call of a **MetadataOutput** instance API, for example, **start()** or **release()**.|
| 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). |
**Example**
......
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