The **appAccount** module provides APIs for adding, deleting, modifying, and querying app account information, and supports inter-app authentication and distributed data synchronization.
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@@ -3173,7 +3173,7 @@ Set credentials for an app account. This API uses an asynchronous callback to re
| name | string | Yes | Name of the target app account. |
| credentialType | string | Yes | Type of the credential to delete. |
| credentialType | string | Yes | Type of the credential to set. |
| credential | string | Yes | Credential value. |
| callback | AsyncCallback<void> | Yes | Callback invoked to return the result. If the operation is successful, **err** is **null**. Otherwise, **err** is an error object.|
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@@ -3203,7 +3203,7 @@ Set credentials for an app account. This API uses a promise to return the result
| Name | Type | Mandatory | Description |
| -------------- | ------ | ---- | ---------- |
| name | string | Yes | Name of the target app account. |
| credentialType | string | Yes | Type of the credential to delete.|
| credentialType | string | Yes | Type of the credential to set.|
| credential | string | Yes | Credential value.|
**Return value**
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@@ -3576,7 +3576,7 @@ Obtains the credential of an app account. This API uses an asynchronous callback
| name | string | Yes | Name of the target app account. |
| credentialType | string | Yes | Type of the credential to delete.|
| credentialType | string | Yes | Type of the credential to obtain.|
| callback | AsyncCallback<string> | Yes | Callback invoked to return the result. If the operation is successful, **err** is **null** and **data** is the credential obtained. Otherwise, **err** is an error object.|
**Example**
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@@ -3606,7 +3606,7 @@ Obtains the credential of an app account. This API uses a promise to return the
| Name | Type | Mandatory | Description |
| -------------- | ------ | ---- | ---------- |
| name | string | Yes | Name of the target app account. |
| credentialType | string | Yes | Type of the credential to delete.|
| credentialType | string | Yes | Type of the credential to obtain.|
The **Bluetooth** module provides classic Bluetooth capabilities and Bluetooth Low Energy (BLE) scan and advertising.
> **NOTE**<br>
> **NOTE**
>
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
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@@ -202,7 +203,7 @@ Obtains the connection state of a profile.
| MATCH_MODE_AGGRESSIVE | 1 | Hardware reports the scan result with a lower threshold of signal strength and few number of matches in a duration. This is the default value.|
| MATCH_MODE_STICKY | 2 | Hardware reports the scan result with a higher threshold of signal strength and sightings. |
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@@ -3596,7 +3591,7 @@ Enumerates the Bluetooth states.
The **cardEmulation** module implements Near-Field Communication (NFC) card emulation. You can use the APIs provided by this module to determine the card emulation type supported and implement Host-based Card Emulation (HCE).
> **NOTE**<br>
> **NOTE**
>
> The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
## Modules to Import
```
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@@ -18,7 +18,7 @@ Enumerates the NFC card emulation types.
The **connectedTag** module provides methods for using active tags. You can use the APIs provided by this module to initialize the active tag chip and read and write active tags.
The **connectedTag** module provides APIs for using active tags. You can use the APIs to initialize the active tag chip and read and write active tags.
> **NOTE**<br>
> **NOTE**
>
> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
## Modules to Import
```
```js
importconnectedTagfrom'@ohos.connectedTag';
```
## connectedTag.init
init(): boolean
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@@ -23,11 +22,11 @@ Initializes the active tag chip.
| type | string | Yes| Event type. The value is **notify**.|
| callback | Callback<number> | No| Callback used to return the field strength state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
| type | string | Yes| Event type. The value is **notify**.|
| callback | Callback<number> | No| Callback used to return the field strength state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
**Example**
```js
importconnectedTagfrom'@ohos.connectedTag';
// Register the event.
connectedTag.on("notify",(err,rfState)=>{
if(err){
console.log("connectedTag on Callback err: "+err);
}else{
console.log("connectedTag on Callback rfState: "+rfState);
The **distributedAccount** module provides APIs for managing distributed accounts, including querying and updating account login status.
The **distributedAccount** module provides APIs for managing distributed accounts, including querying and updating account login states.
> **NOTE**<br>
> **NOTE**
>
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
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@@ -49,7 +49,7 @@ Obtains distributed account information. This API uses an asynchronous callback
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| callback | AsyncCallback<[DistributedInfo](#distributedinfo)> | Yes| Callback invoked to return the result. If the operation is successful, **err** is **undefined** and data is the distributed account information obtained. Otherwise, **err** is an error object.|
| callback | AsyncCallback<[DistributedInfo](#distributedinfo)> | Yes| Callback invoked to return the result. If the operation is successful, **err** is **undefined** and **data** is the distributed account information obtained. Otherwise, **err** is an error object.|
**Error codes**
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@@ -124,7 +124,7 @@ Obtains distributed account information. This API uses an asynchronous callback
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| callback | AsyncCallback<[DistributedInfo](#distributedinfo)> | Yes| Callback invoked to return the result. If the operation is successful, **err** is **undefined** and data is the distributed account information obtained. Otherwise, **err** is an error object.|
| callback | AsyncCallback<[DistributedInfo](#distributedinfo)> | Yes| Callback invoked to return the result. If the operation is successful, **err** is **undefined** and **data** is the distributed account information obtained. Otherwise, **err** is an error object.|
**Example**
```js
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@@ -181,7 +181,7 @@ Sets the distributed account information. This API uses an asynchronous callback
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| accountInfo | [DistributedInfo](#distributedinfo) | Yes| New distributed account information.|
| accountInfo | [DistributedInfo](#distributedinfo) | Yes| Distributed account information to set.|
| callback | AsyncCallback<void> | Yes| Callback invoked to return the result. If the distributed account information is set successfully, **err** is **undefined**. Otherwise, **err** is an error object.|
**Error codes**
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@@ -219,7 +219,7 @@ Sets the distributed account information. This API uses a promise to return the
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| accountInfo | [DistributedInfo](#distributedinfo) | Yes| New distributed account information.|
| accountInfo | [DistributedInfo](#distributedinfo) | Yes| Distributed account information to set.|
**Return value**
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@@ -322,7 +322,7 @@ Defines distributed OS account information.
| -------- | -------- | -------- | -------- |
| name | string | Yes| Name of the distributed account. It must be a non-null string.|
| id | string | Yes| UID of the distributed account. It must be a non-null string.|
| event | string | Yes| Login state of a distributed account. The state can be login, logout, token invalid, or logoff, which correspond to the following strings respectively:<br>- Ohos.account.event.LOGIN<br>- Ohos.account.event.LOGOUT<br>- Ohos.account.event.TOKEN_INVALID<br>- Ohos.account.event.LOGOFF |
| event | string | Yes| Login state of the distributed account. The state can be login, logout, token invalid, or logoff, which correspond to the following strings respectively:<br>- Ohos.account.event.LOGIN<br>- Ohos.account.event.LOGOUT<br>- Ohos.account.event.TOKEN_INVALID<br>- Ohos.account.event.LOGOFF |
| nickname<sup>9+</sup> | string | No| Nickname of the distributed account. It must be a non-null string.|
| avatar<sup>9+</sup> | string | No| Avatar of the distributed account. It must be a non-null string.|
| scalableData | object | No| Extended information about the distributed account, passed in key-value (KV) pairs.<br>**NOTE**<br>This parameter is reserved and not used in query and update methods.|
| scalableData | object | No| Extended information about the distributed account, passed in key-value (KV) pairs.<br>**NOTE**<br>This parameter is reserved and not used in the setters and getters.|
The **osAccount** module provides basic capabilities for managing OS accounts, including adding, deleting, querying, setting, subscribing to, and enabling an OS account.
> **NOTE**<br>
> **NOTE**
>
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
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@@ -2708,7 +2709,6 @@ Obtains the constraint source information of an OS account. This API uses a prom
The **RPC** module implements communication between processes, including inter-process communication (IPC) on a single device and remote procedure call (RPC) between processes on difference devices. IPC is implemented based on the Binder driver, and RPC is based on the DSoftBus driver.
> **NOTE**<br>
> **NOTE**
>
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
>
> This module supports return of error codes since API version 9.
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@@ -24,7 +26,7 @@ The APIs of this module return exceptions since API version 9. The following tab
| OS_MMAP_ERROR | 1900001 | Failed to call mmap. |
| OS_IOCTL_ERROR | 1900002 | Failed to execute**ioctl** with the shared memory file descriptor.|
| OS_IOCTL_ERROR | 1900002 | Failed to call**ioctl** with the shared memory file descriptor.|
| WRITE_TO_ASHMEM_ERROR | 1900003 | Failed to write data to the shared memory. |
| READ_FROM_ASHMEM_ERROR | 1900004 | Failed to read data from the shared memory. |
| ONLY_PROXY_OBJECT_PERMITTED_ERROR | 1900005 | This operation is allowed only on the proxy object. |
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@@ -123,7 +125,7 @@ For details about the error codes, see [RPC Error Codes](../errorcodes/errorcode
readRemoteObject(): IRemoteObject
Reads a remote object from **MessageSequence**. You can use this API to deserialize the **MessageSequence** object to generate an **IRemoteObject**. The remote object is read in the order in which it is written to this **MessageSequence** object.
Reads the remote object from **MessageSequence**. You can use this API to deserialize the **MessageSequence** object to generate an **IRemoteObject**. The remote object is read in the order in which it is written to this **MessageSequence** object.
The **tagSession** module provides common APIs for establishing connections and transferring data.
> **NOTE**<br>
> **NOTE**
>
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
## **Modules to Import**
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@@ -15,17 +16,15 @@ import tag from '@ohos.nfc.tag';
Provides common APIs for establishing connections and transferring data. **tagSession** is the base class of all [NFC tag technologies](js-apis-nfctech.md).
A child class instance is required to access the following interfaces. You can use **get**XX**Tag()** to obtain a child class instance.
A child class instance is required to access the following interfaces. You can use **get**XXX() to obtain a child class instance.
The specific API varies with the NFC tag technology in use. For details, see [NFC Tags](js-apis-nfcTag.md).
### tagSession.connectTag
connectTag(): boolean;
### tagSession.getTagInfo
Connects to this tag.
getTagInfo(): tag.TagInfo
Call this API to set up a connection before reading data from or writing data to a tag.
Obtains the **tagInfo** object provided by the NFC service when the tag is dispatched.
**Required permissions**: ohos.permission.NFC_TAG
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@@ -35,23 +34,25 @@ Call this API to set up a connection before reading data from or writing data to
| Promise<number[]> | Promise used to return the response from the tag. The response consists of hexadecimal numbers ranging from **0x00** to **0xFF**.|
**Example**
```js
importtagfrom'@ohos.nfc.tag';
// tagInfo is an object provided by the NFC service when a tag is dispatched.
// getXXX can be getIsoDep, getNdef, getMifareClassic, or any other getter for NFC tags.
// Connect to the tag if it is not connected.
if(!tag.getIsoDep(tagInfo).isTagConnected()){
if(!tag.getIsoDep(tagInfo).connectTag()){
console.log("tagSession connectTag failed.");
return;
}
}
letcmdData=[0x01,0x02,0x03,0x04];// Change it as required.
| data | number[] | Yes| Data to send. The data consists of hexadecimal numbers ranging from **0x00** to **0xFF**.|
| callback | AsyncCallback<number[]> | Yes| Callback invoked to return the response from the tag. The response consists of hexadecimal numbers ranging from **0x00** to **0xFF**.|
**Example**
```js
importtagfrom'@ohos.nfc.tag';
// tagInfo is an object given by the NFC service when a tag is dispatched.
This **wifiext** module provides WLAN extension interfaces for non-universal products.
> **NOTE**
>
> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
The APIs described in this document are used only for non-universal products, such as routers.
| callback | AsyncCallback<Array<[PowerModel](#powermodel)>> | Yes| Callback invoked to return the result. If the operation is successful, **err** is 0 and **data** is the power models obtained. If **err** is not **0**, an error has occurred.|
## wifiext.getPowerModel
getPowerModel(): Promise<PowerModel>
Obtains the power model. This API uses a promise to return the result.
| callback | AsyncCallback<[PowerModel](#powermodel)> | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the power model obtained. If **err** is not **0**, an error has occurred.|
