fixed 3f8df44d from https://gitee.com/Annie_wang/docs_2/pulls/19274

update docs
Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>

en/application-dev/reference/apis/js-apis-wifi.md

@@ -31,6 +31,17 @@ Enables WLAN.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.enableWifi();
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.disableWifi
 
@@ -50,6 +61,18 @@ Disables WLAN.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.disableWifi();
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+
+```
 
 ## wifi.isWifiActive
 
@@ -67,6 +90,18 @@ Checks whether WLAN is enabled.
   | -------- | -------- |
   | boolean | Returns **true** if WLAN is enabled; returns **false** otherwise.|
 
+**Example**
+
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let isActivate = wifi.isActivate();
+	console.info("isActivate:" + isActivate);
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.scan
 
@@ -84,6 +119,17 @@ Starts a scan for WLAN.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.scan();
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.getScanInfos
 
@@ -119,10 +165,11 @@ Obtains the scan result. This API uses an asynchronous callback to return the re
   | callback | AsyncCallback< Array<[WifiScanInfo](#wifiscaninfo)>> | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the detected hotspots. Otherwise, **err** is a non-zero value and **data** is empty.|
 
 **Example**
-  ```js
-  import wifi from '@ohos.wifi';
 
-  wifi.getScanInfos((err, result) => {
+```js
+import wifi from '@ohos.wifi';
+
+wifi.getScanInfos((err, result) => {
     if (err) {
         console.error("get scan info error");
         return;
@@ -141,9 +188,9 @@ Obtains the scan result. This API uses an asynchronous callback to return the re
         console.info("channelWidth: " + result[i].channelWidth);
         console.info("timestamp: " + result[i].timestamp);
     }
-  });
+});
 
-  wifi.getScanInfos().then(result => {
+wifi.getScanInfos().then(result => {
     var len = Object.keys(result).length;
     console.log("wifi received scan info: " + len);
     for (var i = 0; i < len; ++i) {
@@ -157,8 +204,8 @@ Obtains the scan result. This API uses an asynchronous callback to return the re
         console.info("channelWidth: " + result[i].channelWidth);
         console.info("timestamp: " + result[i].timestamp);
     }
-  });
-  ```
+});
+```
 
 
 ## WifiScanInfo
@@ -238,6 +285,25 @@ Adds network configuration. This API uses a promise to return the result.
   | -------- | -------- |
   | Promise&lt;number&gt; | Promise used to return the WLAN configuration ID. If **-1** is returned, the network configuration fails to be added.|
 
+  **Example**
+
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let config = {
+		ssid : "****",
+		preSharedKey : "****",
+		securityType : 0
+	}
+	wifi.addDeviceConfig(config).then(result => {
+		console.info("result:" + JSON.stringify(result));
+	});	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
+
 ## WifiDeviceConfig
 
 Represents the WLAN configuration.
@@ -252,13 +318,13 @@ Represents the WLAN configuration.
 | preSharedKey | string | Yes| No| PSK of the hotspot.|
 | isHiddenSsid | boolean | Yes| No| Whether the network is hidden.|
 | securityType | [WifiSecurityType](#wifisecuritytype) | Yes| No| Security type.|
-| creatorUid | number | Yes| No| ID of the creator.<br> **System API**: This is a system API.|
-| disableReason | number | Yes| No| Reason for disabling WLAN.<br> **System API**: This is a system API.|
-| netId | number | Yes| No| Network ID.<br> **System API**: This is a system API.|
-| randomMacType | number | Yes| No| Random MAC type.<br> **System API**: This is a system API.|
-| randomMacAddr | string | Yes| No| Random MAC address.<br> **System API**: This is a system API.|
-| ipType | [IpType](#iptype7) | Yes| No| IP address type.<br> **System API**: This is a system API.|
-| staticIp | [IpConfig](#ipconfig7) | Yes| No| Static IP address configuration.<br> **System API**: This is a system API.|
+| creatorUid | number | Yes| No| ID of the creator.<br>**System API**: This is a system API.|
+| disableReason | number | Yes| No| Reason for disabling WLAN.<br>**System API**: This is a system API.|
+| netId | number | Yes| No| Network ID.<br>**System API**: This is a system API.|
+| randomMacType | number | Yes| No| Random MAC type.<br>**System API**: This is a system API.|
+| randomMacAddr | string | Yes| No| Random MAC address.<br>**System API**: This is a system API.|
+| ipType | [IpType](#iptype7) | Yes| No| IP address type.<br>**System API**: This is a system API.|
+| staticIp | [IpConfig](#ipconfig7) | Yes| No| Static IP address configuration.<br>**System API**: This is a system API.|
 
 
 ## IpType<sup>7+</sup>
@@ -312,7 +378,24 @@ Adds network configuration. This API uses an asynchronous callback to return the
   | config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to add.|
   | callback | AsyncCallback&lt;number&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the network configuration ID. If **data** is **-1**, the operation has failed. If **err** is not **0**, an error has occurred.|
 
+**Example**
+
+```js
+import wifi from '@ohos.wifi';
 
+try {
+	let config = {
+		ssid : "****",
+		preSharedKey : "****",
+		securityType : 0
+	}
+	wifi.addDeviceConfig(config,(error,result) => {
+		console.info("result:" + JSON.stringify(result));
+	});	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 ## wifi.addUntrustedConfig<sup>7+</sup>
 
 addUntrustedConfig(config: WifiDeviceConfig): Promise&lt;boolean&gt;
@@ -335,6 +418,23 @@ Adds the configuration of an untrusted network. This API uses a promise to retur
   | -------- | -------- |
   | Promise&lt;boolean&gt; | Promise used to return the result. If the operation is successful, **true** is returned; otherwise, **false** is returned.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let config = {
+		ssid : "****",
+		preSharedKey : "****",
+		securityType : 0
+	}
+	wifi.addUntrustedConfig(config).then(result => {
+		console.info("result:" + JSON.stringify(result));
+	});	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.addUntrustedConfig<sup>7+</sup>
 
@@ -353,6 +453,23 @@ Adds the configuration of an untrusted network. This API uses an asynchronous ca
   | config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to add.|
   | callback | AsyncCallback&lt;boolean&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is **true**. If the operation fails, **data** is **false**. If **err** is not **0**, an error has occurred.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let config = {
+		ssid : "****",
+		preSharedKey : "****",
+		securityType : 0
+	}
+	wifi.addUntrustedConfig(config,(error,result) => {
+		console.info("result:" + JSON.stringify(result));
+	});	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.removeUntrustedConfig<sup>7+</sup>
 
@@ -376,6 +493,21 @@ Removes the configuration of an untrusted network. This API uses a promise to re
   | -------- | -------- |
   | Promise&lt;boolean&gt; | Promise used to return the result. If the operation is successful, **true** is returned; otherwise, **false** is returned.|
 
+**Example**
+
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let networkId = 0;
+	wifi.removeUntrustedConfig(networkId).then(result => {
+		console.info("result:" + JSON.stringify(result));
+	});	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
+
 
 ## wifi.removeUntrustedConfig<sup>7+</sup>
 
@@ -394,6 +526,19 @@ Removes the configuration of an untrusted network. This API uses an asynchronous
 | config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to remove.|
   | callback | AsyncCallback&lt;boolean&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is **true**. If the operation fails, **data** is **false**. If **err** is not **0**, an error has occurred.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let networkId = 0;
+	wifi.removeUntrustedConfig(networkId,(error,result) => {
+	console.info("result:" + JSON.stringify(result));
+	});	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.connectToNetwork
 
@@ -419,6 +564,18 @@ Connects to the specified network.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let networkId = 0;
+	wifi.connectToNetwork(networkId);
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}	
+```
 
 ## wifi.connectToDevice
 
@@ -445,6 +602,22 @@ Connects to the specified network.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let config = {
+		ssid : "****",
+		preSharedKey : "****",
+		securityType : 3
+	}
+	wifi.connectToDevice(config);
+			
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.disconnect
 
@@ -465,6 +638,16 @@ Disconnects the network.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.disconnect();
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.getSignalLevel
 
@@ -489,6 +672,20 @@ Obtains the WLAN signal level.
   | -------- | -------- |
   | number | Signal level obtained. The value range is [0, 4].|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let rssi = 0;
+	let band = 0;
+	let level = wifi.getSignalLevel(rssi,band);
+	console.info("lelvel:" + JSON.stringify(lelvel));
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+
+```
 
 ## wifi.getLinkedInfo
 
@@ -524,23 +721,23 @@ Obtains WLAN connection information. This API uses an asynchronous callback to r
   | callback | AsyncCallback&lt;[WifiLinkedInfo](#wifilinkedinfo)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the WLAN connection information obtained. If **err** is not **0**, an error has occurred.|
 
 **Example**
-  ```js
-  import wifi from '@ohos.wifi';
+```js
+import wifi from '@ohos.wifi';
 
-  wifi.getLinkedInfo((err, data) => {
+wifi.getLinkedInfo((err, data) => {
     if (err) {
         console.error("get linked info error");
         return;
     }
     console.info("get wifi linked info: " + JSON.stringify(data));
-  });
+});
 
-  wifi.getLinkedInfo().then(data => {
+wifi.getLinkedInfo().then(data => {
     console.info("get wifi linked info: " + JSON.stringify(data));
-  }).catch(error => {
+}).catch(error => {
     console.info("get linked info error");
-  });
-  ```
+});
+```
 
 
 ## WifiLinkedInfo
@@ -553,18 +750,18 @@ Represents the WLAN connection information.
 | -------- | -------- | -------- | -------- | -------- |
 | ssid | string | Yes| No| SSID of the hotspot, in UTF-8 format.|
 | bssid | string | Yes| No| BSSID of the hotspot.|
-| networkId | number | Yes| No| Network configuration ID.<br> **System API**: This is a system API.|
+| networkId | number | Yes| No| Network configuration ID.<br>**System API**: This is a system API.|
 | rssi | number | Yes| No| RSSI of the hotspot, in dBm.|
 | band | number | Yes| No| Frequency band of the WLAN AP.|
 | linkSpeed | number | Yes| No| Speed of the WLAN AP.|
 | frequency | number | Yes| No| Frequency of the WLAN AP.|
 | isHidden | boolean | Yes| No| Whether to hide the WLAN AP.|
 | isRestricted | boolean | Yes| No| Whether to restrict data volume at the WLAN AP.|
-| chload | number | Yes| No| Channel load. A larger value indicates a higher load.<br> **System API**: This is a system API.|
-| snr | number | Yes| No| Signal-to-noise ratio (SNR).<br> **System API**: This is a system API.|
+| chload | number | Yes| No| Channel load. A larger value indicates a higher load.<br>**System API**: This is a system API.|
+| snr | number | Yes| No| Signal-to-noise ratio (SNR).<br>**System API**: This is a system API.|
 | macAddress | string | Yes| No| MAC address of the device.|
 | ipAddress | number | Yes| No| IP address of the device that sets up the WLAN connection.|
-| suppState | [SuppState](#suppstate) | Yes| No| Supplicant state.<br> **System API**: This is a system API.|
+| suppState | [SuppState](#suppstate) | Yes| No| Supplicant state.<br>**System API**: This is a system API.|
 | connState | [ConnState](#connstate) | Yes| No| WLAN connection state.|
 
 
@@ -684,6 +881,19 @@ Checks whether the device supports the specified WLAN feature.
   | -------- | -------- |
   | boolean | Returns **true** if the feature is supported; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let featureId = 0;
+	let ret = wifi.isFeatureSupported(featureId);
+	console.info("isFeatureSupported:" + ret);
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+
+```
 
 ## wifi.getDeviceMacAddress<sup>7+</sup>
 
@@ -703,6 +913,18 @@ Obtains the device MAC address.
   | -------- | -------- |
   | string[] | MAC address obtained.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let ret = wifi.getDeviceMacAddress();
+	console.info("deviceMacAddress:" + JSON.stringify(ret));
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+
+```
 
 ## wifi.getIpInfo<sup>7+</sup>
 
@@ -720,6 +942,17 @@ Obtains IP information.
   | -------- | -------- |
   | [IpInfo](#ipinfo7) | IP information obtained.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let info = wifi.getIpInfo();
+	console.info("info:" + JSON.stringify(info));
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## IpInfo<sup>7+</sup>
 
@@ -754,6 +987,17 @@ Obtains the country code.
   | -------- | -------- |
   | string | Country code obtained.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let code = wifi.getCountryCode();
+	console.info("code:" + code);
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.reassociate<sup>7+</sup>
 
@@ -773,6 +1017,16 @@ Re-associates with the network.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.reassociate();
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.reconnect<sup>7+</sup>
 
@@ -792,6 +1046,16 @@ Reconnects to the network.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.reconnect();
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.getDeviceConfigs<sup>7+</sup>
 
@@ -811,6 +1075,17 @@ Obtains network configuration.
   | -------- | -------- |
   | &nbsp;Array&lt;[WifiDeviceConfig](#wifideviceconfig)&gt; | Array of network configuration obtained.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let configs = wifi.getDeviceConfigs();
+	console.info("configs:" + JSON.stringify(configs));
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.updateNetwork<sup>7+</sup>
 
@@ -836,6 +1111,22 @@ Updates network configuration.
   | -------- | -------- |
   | number | ID of the updated network configuration. The value **-1** indicates that the operation has failed.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let config = {
+		ssid : "****",
+		preSharedKey : "****",
+		securityType : 3
+	}
+	let ret = wifi.updateNetwork(config);
+	console.error("ret:" + ret);		
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.disableNetwork<sup>7+</sup>
 
@@ -861,6 +1152,17 @@ Disables network configuration.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let netId = 0;
+	wifi.disableNetwork(netId);		
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.removeAllNetwork<sup>7+</sup>
 
@@ -880,6 +1182,16 @@ Removes the configuration of all networks.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.removeAllNetwork();		
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.removeDevice<sup>7+</sup>
 
@@ -905,6 +1217,17 @@ Removes the specified network configuration.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let id = 0;
+	wifi.removeDevice(id);		
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.enableHotspot<sup>7+</sup>
 
@@ -924,6 +1247,16 @@ Enables this hotspot.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.enableHotspot();	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.disableHotspot<sup>7+</sup>
 
@@ -943,6 +1276,16 @@ Disables this hotspot.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifiManager';
+
+try {
+	wifiManager.disableHotspot();	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.isHotspotDualBandSupported<sup>7+</sup>
 
@@ -962,6 +1305,17 @@ Checks whether the hotspot supports dual band.
   | -------- | -------- |
   | boolean | Returns **true** if the feature is supported; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let ret = wifi.isHotspotDualBandSupported();
+	console.info("result:" + ret);		
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.isHotspotActive<sup>7+</sup>
 
@@ -981,6 +1335,17 @@ Checks whether this hotspot is active.
   | -------- | -------- |
   | boolean | Returns **true** if the hotspot is active; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let ret = wifi.isHotspotActive();
+	console.info("result:" + ret);		
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.setHotspotConfig<sup>7+</sup>
 
@@ -1006,6 +1371,25 @@ Sets hotspot configuration.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let config = {
+		ssid: "****",
+		securityType: 3,
+		band: 0,
+		channel: 0,
+		preSharedKey: "****",
+		maxConn: 0
+	}
+	let ret = wifi.setHotspotConfig();
+	console.info("result:" + ret);		
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## HotspotConfig<sup>7+</sup>
 
@@ -1042,6 +1426,17 @@ obtains hotspot configuration.
   | -------- | -------- |
   | [HotspotConfig](#hotspotconfig7) | Hotspot configuration obtained.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let config = wifi.getHotspotConfig();
+	console.info("result:" + JSON.stringify(config));		
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.getStations<sup>7+</sup>
 
@@ -1061,6 +1456,17 @@ Obtains information about the connected stations.
   | -------- | -------- |
   | &nbsp;Array&lt;[StationInfo](#stationinfo7)&gt; | Connected stations obtained.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let stations = wifi.getStations();
+	console.info("result:" + JSON.stringify(stations));		
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## StationInfo<sup>7+</sup>
 
@@ -1136,6 +1542,22 @@ Obtains P2P link information. This API uses an asynchronous callback to return t
   | -------- | -------- | -------- | -------- |
   | callback | AsyncCallback&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo8)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the P2P link information. If **err** is not **0**, an error has occurred.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+wifi.getP2pLinkedInfo((err, data) => {
+   if (err) {
+       console.error("get p2p linked info error");
+       return;
+   }
+	console.info("get wifi p2p linked info: " + JSON.stringify(data));
+});
+
+wifi.getP2pLinkedInfo().then(data => {
+	console.info("get wifi p2p linked info: " + JSON.stringify(data));
+});
+```
 
 ## wifi.getCurrentGroup<sup>8+</sup>
 
@@ -1170,6 +1592,22 @@ Obtains the current P2P group information. This API uses an asynchronous callbac
   | -------- | -------- | -------- | -------- |
   | callback | AsyncCallback&lt;[WifiP2pGroupInfo](#wifip2pgroupinfo8)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the group information obtained. If **err** is not **0**, an error has occurred.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+wifi.getCurrentGroup((err, data) => {
+   if (err) {
+       console.error("get current P2P group error");
+       return;
+   }
+	console.info("get current P2P group: " + JSON.stringify(data));
+});
+
+wifi.getCurrentGroup().then(data => {
+	console.info("get current P2P group: " + JSON.stringify(data));
+});
+```
 
 ## wifi.getP2pPeerDevices<sup>8+</sup>
 
@@ -1204,6 +1642,22 @@ Obtains the peer device list in the P2P connection. This API uses an asynchronou
   | -------- | -------- | -------- | -------- |
   | callback | AsyncCallback&lt;[WifiP2pDevice[]](#wifip2pdevice8)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the peer device list obtained. If **err** is not **0**, an error has occurred.|
 
+**Example**
+```js
+import wifi from '@ohos.wifiManager';
+
+wifi.getP2pPeerDevices((err, data) => {
+   if (err) {
+       console.error("get P2P peer devices error");
+       return;
+   }
+	console.info("get P2P peer devices: " + JSON.stringify(data));
+});
+
+wifi.getP2pPeerDevices().then(data => {
+	console.info("get P2P peer devices: " + JSON.stringify(data));
+});
+```
 
 ## WifiP2pDevice<sup>8+</sup>
 
@@ -1257,6 +1711,24 @@ Creates a P2P group.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let config = {
+		deviceAddress: "****",
+		netId: 0,
+		passphrase: "*****",
+		groupName: "****",
+		goBand: 0
+	}
+	wifi.createGroup(config);	
+	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## WifiP2PConfig<sup>8+</sup>
 
@@ -1302,6 +1774,16 @@ Removes this P2P group.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.removeGroup();	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.p2pConnect<sup>8+</sup>
 
@@ -1328,10 +1810,10 @@ Sets up a P2P connection.
 
 
 **Example**
-  ```js
-  import wifi from '@ohos.wifi';
+```js
+import wifi from '@ohos.wifi';
 
-  var recvP2pConnectionChangeFunc = result => {
+var recvP2pConnectionChangeFunc = result => {
     console.info("p2p connection change receive event: " + JSON.stringify(result));
     wifi.getP2pLinkedInfo((err, data) => {
         if (err) {
@@ -1340,15 +1822,15 @@ Sets up a P2P connection.
         }
         console.info("get getP2pLinkedInfo: " + JSON.stringify(data));
     });
-  }
-  wifi.on("p2pConnectionChange", recvP2pConnectionChangeFunc);
+}
+wifi.on("p2pConnectionChange", recvP2pConnectionChangeFunc);
 
-  var recvP2pDeviceChangeFunc = result => {
+var recvP2pDeviceChangeFunc = result => {
     console.info("p2p device change receive event: " + JSON.stringify(result));
-  }
-  wifi.on("p2pDeviceChange", recvP2pDeviceChangeFunc);
+}
+wifi.on("p2pDeviceChange", recvP2pDeviceChangeFunc);
 
-  var recvP2pPeerDeviceChangeFunc = result => {
+var recvP2pPeerDeviceChangeFunc = result => {
     console.info("p2p peer device change receive event: " + JSON.stringify(result));
     wifi.getP2pPeerDevices((err, data) => {
         if (err) {
@@ -1371,10 +1853,10 @@ Sets up a P2P connection.
             }
         }
     });
-  }
-  wifi.on("p2pPeerDeviceChange", recvP2pPeerDeviceChangeFunc);
+}
+wifi.on("p2pPeerDeviceChange", recvP2pPeerDeviceChangeFunc);
 
-  var recvP2pPersistentGroupChangeFunc = () => {
+var recvP2pPersistentGroupChangeFunc = () => {
     console.info("p2p persistent group change receive event");
 
     wifi.getCurrentGroup((err, data) => {
@@ -1384,15 +1866,15 @@ Sets up a P2P connection.
         }
         console.info("get current group: " + JSON.stringify(data));
     });
-  }
-  wifi.on("p2pPersistentGroupChange", recvP2pPersistentGroupChangeFunc);
-  
-  setTimeout(function() {wifi.off("p2pConnectionChange", recvP2pConnectionChangeFunc);}, 125 * 1000);
-  setTimeout(function() {wifi.off("p2pDeviceChange", recvP2pDeviceChangeFunc);}, 125 * 1000);
-  setTimeout(function() {wifi.off("p2pPeerDeviceChange", recvP2pPeerDeviceChangeFunc);}, 125 * 1000);
-  setTimeout(function() {wifi.off("p2pPersistentGroupChange", recvP2pPersistentGroupChangeFunc);}, 125 * 1000);
-  console.info("start discover devices -> " + wifi.startDiscoverDevices());
-  ```
+}
+wifi.on("p2pPersistentGroupChange", recvP2pPersistentGroupChangeFunc);
+
+setTimeout(function() {wifi.off("p2pConnectionChange", recvP2pConnectionChangeFunc);}, 125 * 1000);
+setTimeout(function() {wifi.off("p2pDeviceChange", recvP2pDeviceChangeFunc);}, 125 * 1000);
+setTimeout(function() {wifi.off("p2pPeerDeviceChange", recvP2pPeerDeviceChangeFunc);}, 125 * 1000);
+setTimeout(function() {wifi.off("p2pPersistentGroupChange", recvP2pPersistentGroupChangeFunc);}, 125 * 1000);
+console.info("start discover devices -> " + wifi.startDiscoverDevices());
+```
 
 ## wifi.p2pCancelConnect<sup>8+</sup>
 
@@ -1410,6 +1892,16 @@ Cancels this P2P connection.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.p2pCancelConnect();	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.startDiscoverDevices<sup>8+</sup>
 
@@ -1427,6 +1919,16 @@ Starts to discover devices.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.startDiscoverDevices();	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.stopDiscoverDevices<sup>8+</sup>
 
@@ -1444,6 +1946,16 @@ Stops discovering devices.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	wifi.stopDiscoverDevices();	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.deletePersistentGroup<sup>8+</sup>
 
@@ -1470,6 +1982,17 @@ Deletes a persistent group.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let netId = 0;
+	wifi.deletePersistentGroup(netId);	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## WifiP2pGroupInfo<sup>8+</sup>
 
@@ -1514,6 +2037,17 @@ Sets the device name.
   | -------- | -------- |
   | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+try {
+	let name = "****";
+	wifi.setDeviceName(netId);	
+}catch(error){
+	console.error("failed:" + JSON.stringify(error));
+}
+```
 
 ## wifi.on('wifiStateChange')<sup>7+</sup>
 
@@ -1560,19 +2094,19 @@ Unregisters the WLAN state change events.
   | callback | Callback&lt;number&gt; | No| Callback for the WLAN state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Example**
-  ```js
-  import wifi from '@ohos.wifi';
+```js
+import wifi from '@ohos.wifi';
 
-  var recvPowerNotifyFunc = result => {
+var recvPowerNotifyFunc = result => {
     console.info("Receive power state change event: " + result);
-  }
+}
 
-  // Register an event.
-  wifi.on("wifiStateChange", recvPowerNotifyFunc);
+// Register an event.
+wifi.on("wifiStateChange", recvPowerNotifyFunc);
 
-  // Unregister an event.
-  wifi.off("wifiStateChange", recvPowerNotifyFunc);
-  ```
+// Unregister an event.
+wifi.off("wifiStateChange", recvPowerNotifyFunc);
+```
 
 
 ## wifi.on('wifiConnectionChange')<sup>7+</sup>
@@ -1617,6 +2151,20 @@ Unregisters the WLAN connection state change events.
   | type | string | Yes| Event type. The value is **wifiConnectionChange**.|
   | callback | Callback&lt;number&gt; | No| Callback for the WLAN connection state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+var recvWifiConnectionChangeFunc = result => {
+    console.info("Receive wifi connection change event: " + result);
+}
+
+// Register an event.
+wifi.on("wifiConnectionChange", recvWifiConnectionChangeFunc);
+
+// Unregister an event.
+wifi.off("wifiConnectionChange", recvWifiConnectionChangeFunc);
+```
 
 ## wifi.on('wifiScanStateChange')<sup>7+</sup>
 
@@ -1660,6 +2208,20 @@ Unregisters the WLAN scan state change events.
 | type | string | Yes| Event type. The value is **wifiScanStateChange**.|
 | callback | Callback&lt;number&gt; | No| Callback for the WLAN scan state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+var recvWifiScanStateChangeFunc = result => {
+    console.info("Receive Wifi scan state change event: " + result);
+}
+
+// Register an event.
+wifi.on("wifiScanStateChange", recvWifiScanStateChangeFunc);
+
+// Unregister an event.
+wifi.off("wifiScanStateChange", recvWifiScanStateChangeFunc);
+```
 
 ## wifi.on('wifiRssiChange')<sup>7+</sup>
 
@@ -1696,7 +2258,20 @@ Unregisters the RSSI change events.
   | type | string | Yes| Event type. The value is **wifiRssiChange**.|
 | callback | Callback&lt;number&gt; | No| Callback for the RSSI. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+var recvWifiRssiChangeFunc = result => {
+    console.info("Receive wifi rssi change event: " + result);
+}
+
+// Register an event.
+wifi.on("wifiRssiChange", recvWifiRssiChangeFunc);
 
+// Unregister an event.
+wifi.off("wifiRssiChange", recvWifiRssiChangeFunc);
+```
 ## wifi.on('hotspotStateChange')<sup>7+</sup>
 
 on(type: "hotspotStateChange", callback: Callback&lt;number&gt;): void
@@ -1723,6 +2298,20 @@ Registers the hotspot state change events.
 | 2 | Activating|
 | 3 | Deactivating|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+var recvHotspotStateChangeFunc = result => {
+    console.info("Receive hotspot state change event: " + result);
+}
+
+// Register an event.
+wifi.on("hotspotStateChange", recvHotspotStateChangeFunc);
+
+// Unregister an event.
+wifi.off("hotspotStateChange", recvHotspotStateChangeFunc);
+```
 
 ## wifi.off('hotspotStateChange')<sup>7+</sup>
 
@@ -1786,6 +2375,20 @@ Unregisters the P2P state change events.
   | type | string | Yes| Event type. The value is **p2pStateChange**.|
 | callback | Callback&lt;number&gt; | No| Callback for the P2P state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+var recvP2pStateChangeFunc = result => {
+    console.info("Receive p2p state change event: " + result);
+}
+
+// Register an event.
+wifi.on("p2pStateChange", recvP2pStateChangeFunc);
+
+// Unregister an event.
+wifi.off("p2pStateChange", recvP2pStateChangeFunc);
+```
 
   ## wifi.on('p2pConnectionChange')<sup>8+</sup>
 
@@ -1822,6 +2425,20 @@ Unregisters the P2P connection state change events.
   | type | string | Yes| Event type. The value is **p2pConnectionChange**.|
 | callback | Callback&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo8)&gt; | No| Callback for the P2P connection state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+var recvP2pConnectionChangeFunc = result => {
+    console.info("Receive p2p connection change event: " + result);
+}
+
+// Register an event.
+wifi.on("p2pConnectionChange", recvP2pConnectionChangeFunc);
+
+// Unregister an event.
+wifi.off("p2pConnectionChange", recvP2pConnectionChangeFunc);
+```
 
 ## wifi.on('p2pDeviceChange')<sup>8+</sup>
 
@@ -1858,6 +2475,20 @@ Unregisters the P2P device state change events.
   | type | string | Yes| Event type. The value is **p2pDeviceChange**.|
 | callback | Callback&lt;[WifiP2pDevice](#wifip2pdevice8)&gt; | No| Callback for the P2P device state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+var recvP2pDeviceChangeFunc = result => {
+    console.info("Receive recv p2p device change event: " + result);
+}
+
+// Register an event.
+wifi.on("p2pDeviceChange", recvP2pDeviceChangeFunc);
+
+// Unregister an event.
+wifi.off("p2pDeviceChange", recvP2pDeviceChangeFunc);
+```
 
 ## wifi.on('p2pPeerDeviceChange')<sup>8+</sup>
 
@@ -1894,6 +2525,20 @@ Unregisters the P2P peer device state change events.
   | type | string | Yes| Event type. The value is **p2pPeerDeviceChange**.|
 | callback | Callback&lt;[WifiP2pDevice[]](#wifip2pdevice8)&gt; | No| Callback for the peer device state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+var recvP2pPeerDeviceChangeFunc = result => {
+    console.info("Receive recv p2p peer device change event: " + result);
+}
+
+// Register an event.
+wifi.on("p2pPeerDeviceChange", recvP2pPeerDeviceChangeFunc);
+
+// Unregister an event.
+wifi.off("p2pPeerDeviceChange", recvP2pPeerDeviceChangeFunc);
+```
 
 ## wifi.on('p2pPersistentGroupChange')<sup>8+</sup>
 
@@ -1930,6 +2575,21 @@ Unregisters the P2P persistent group state change events.
   | type | string | Yes| Event type. The value is **p2pPersistentGroupChange**.|
 | callback | Callback&lt;void&gt; | No| Callback for the P2P persistent group state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+var recvP2pPersistentGroupChangeFunc = result => {
+    console.info("Receive recv p2p persistent group change event: " + result);
+}
+
+// Register an event.
+wifi.on("p2pPersistentGroupChange", recvP2pPersistentGroupChangeFunc);
+
+// Unregister an event.
+wifi.off("p2pPersistentGroupChange", recvP2pPersistentGroupChangeFunc);
+
+```
 
 ## wifi.on('p2pDiscoveryChange')<sup>8+</sup>
 
@@ -1972,3 +2632,18 @@ Unregisters the P2P device discovery state change events.
   | -------- | -------- | -------- | -------- |
   | type | string | Yes| Event type. The value is **p2pDiscoveryChange**.|
 | callback | Callback&lt;number&gt; | No| Callback for the P2P device discovery state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+
+**Example**
+```js
+import wifi from '@ohos.wifi';
+
+var recvP2pDiscoveryChangeFunc = result => {
+    console.info("Receive recv p2p discovery change event: " + result);
+}
+
+// Register an event.
+wifi.on("p2pDiscoveryChange", recvP2pDiscoveryChangeFunc);
+
+// Unregister an event.
+wifi.off("p2pDiscoveryChange", recvP2pDiscoveryChangeFunc);
+```

en/application-dev/reference/apis/js-apis-wifiManager.md

@@ -26,18 +26,29 @@ Enables WLAN.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
+| **Type**| **Description**|
+| -------- | -------- |
+| boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.enableWifi();
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
 
 ## wifi.disableWifi<sup>9+</sup>
 
@@ -53,18 +64,30 @@ Disables WLAN.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
+| **Type**| **Description**|
+| -------- | -------- |
+| boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.disableWifi();
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.isWifiActive<sup>9+</sup>
 
 isWifiActive(): boolean
@@ -77,132 +100,119 @@ Checks whether WLAN is enabled.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | boolean | Returns **true** if WLAN is enabled; returns **false** otherwise.|
+| **Type**| **Description**|
+| -------- | -------- |
+| boolean | Returns **true** if WLAN is enabled; returns **false** otherwise.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let isActivate = wifiManager.isActivate();
+		console.info("isActivate:" + isActivate);
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.scan<sup>9+</sup>
 
 scan(): void
 
 Starts a scan for WLAN.
 
-**Required permissions**: **ohos.permission.SET_WIFI_INFO** and **ohos.permission.LOCATION**
+**Required permissions**: ohos.permission.SET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.STA
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
+| **Type**| **Description**|
+| -------- | -------- |
+| boolean | Returns **true** if the operation is successful; returns **false** otherwise.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
-## wifi.getScanResults<sup>9+</sup>
-
-getScanResults(): Promise&lt;Array&lt;WifiScanInfo&gt;&gt;
-
-Obtains the scan result. This API uses a promise to return the result.
-
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.GET_WIFI_PEERS_MAC (or ohos.permission.LOCATION)
-
-**System capability**: SystemCapability.Communication.WiFi.STA
-
-**Return value**
-
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | Promise&lt;&nbsp;Array&lt;[WifiScanInfo](#wifiscaninfo)&gt;&nbsp;&gt; | Promise used to return the hotspots detected.|
-
-**Error codes**
+**Example**
 
-For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
+```
+	import wifi from '@ohos.wifiManager';
 
-| **Type**| **Description**|
-  | -------- | -------- |
-| 2501000  | Operation failed.|
+	try {
+		wifiManager.scan();
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
 
-## wifi.getScanResults<sup>9+</sup>
+## wifi.getScanInfoList<sup>9+</sup>
 
-getScanResults(callback: AsyncCallback&lt;Array&lt;WifiScanInfo&gt;&gt;): void
+getScanInfoList(): Array&lt;WifiScanInfo&gt;;
 
-Obtains the scan result. This API uses an asynchronous callback to return the result.
+Obtains the scan result.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.GET_WIFI_PEERS_MAC (or ohos.permission.LOCATION)
+**Required permissions**: ohos.permission.GET_WIFI_INFO and (ohos.permission.GET_WIFI_PEERS_MAC or (ohos.permission.LOCATION and ohos.permission.APPROXIMATELY_LOCATION))
 
 **System capability**: SystemCapability.Communication.WiFi.STA
 
-**Parameters**
+**Return value**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | callback | AsyncCallback&lt;&nbsp;Array&lt;[WifiScanInfo](#wifiscaninfo)&gt;&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the detected hotspots. Otherwise, **err** is a non-zero value and **data** is empty.|
+| **Type**| **Description**|
+| -------- | -------- |
+| Array&lt;[WifiScanInfo](#wifiscaninfo)&gt; | Returns the hotspots detected.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
 **Example**
-  ```js
-  import wifi from '@ohos.wifi';
 
-  wifi.getScanInfos((err, result) => {
-      if (err) {
-          console.error("get scan info error");
-          return;
-      }
+```
+	import wifi from '@ohos.wifiManager';
 
-      var len = Object.keys(result).length;
+	try {
+		let scanInfoList = wifiManager.getScanInfoList();
+		console.info("scanInfoList:" + JSON.stringify(scanInfoList));
+		let len = Object.keys(result).length;
         console.log("wifi received scan info: " + len);
+		if(len > 0){
 			for (var i = 0; i < len; ++i) {
-          console.info("ssid: " + result[i].ssid);
-          console.info("bssid: " + result[i].bssid);
-          console.info("capabilities: " + result[i].capabilities);
-          console.info("securityType: " + result[i].securityType);
-          console.info("rssi: " + result[i].rssi);
-          console.info("band: " + result[i].band);
-          console.info("frequency: " + result[i].frequency);
-          console.info("channelWidth: " + result[i].channelWidth);
-          console.info("timestamp: " + result[i].timestamp);
+				console.info("ssid: " + scanInfoList[i].ssid);
+				console.info("bssid: " + scanInfoList[i].bssid);
+				console.info("capabilities: " + scanInfoList[i].capabilities);
+				console.info("securityType: " + scanInfoList[i].securityType);
+				console.info("rssi: " + scanInfoList[i].rssi);
+				console.info("band: " + scanInfoList[i].band);
+				console.info("frequency: " + scanInfoList[i].frequency);
+				console.info("channelWidth: " + scanInfoList[i].channelWidth);
+				console.info("timestamp: " + scanInfoList[i].timestamp);
 			}
-  });
-  
-  wifi.getScanInfos().then(result => {
-      var len = Object.keys(result).length;
-      console.log("wifi received scan info: " + len);
-      for (var i = 0; i < len; ++i) {
-          console.info("ssid: " + result[i].ssid);
-          console.info("bssid: " + result[i].bssid);
-          console.info("capabilities: " + result[i].capabilities);
-          console.info("securityType: " + result[i].securityType);
-          console.info("rssi: " + result[i].rssi);
-          console.info("band: " + result[i].band);
-          console.info("frequency: " + result[i].frequency);
-          console.info("channelWidth: " + result[i].channelWidth);
-          console.info("timestamp: " + result[i].timestamp);
 		}	
-  });
-  ```
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
 	
+```
 
 ## WifiScanInfo<sup>9+</sup>
 
@@ -248,59 +258,65 @@ Enumerates the WLAN security types.
 | WIFI_SEC_TYPE_WAPI_PSK<sup>9+</sup> | 9 | WAPI-PSK.|
 
 
-## WifiInfoElem<sup>9+</sup>
+## WifiBandType<sup>10+</sup>
 
-Represents a WLAN information element.
+Enumerates the Wi-Fi band types.
 
 **System capability**: SystemCapability.Communication.WiFi.STA
 
+| **Name**| **Value**| **Description**|
+| -------- | -------- | -------- |
+| WIFI_BAND_NONE | 0 | Invalid band type|
+| WIFI_BAND_2G | 1 | 2.4 GHz|
+| WIFI_BAND_5G | 2 | 5 GHz|
+| WIFI_BAND_6G | 3 | 6 GHz|
+| WIFI_BAND_60G | 4 | 60 GHz|
 
-| **Name**| **Type**| **Readable**| **Writable**| **Description**|
-| -------- | -------- | -------- | -------- | -------- |
-| eid | number | Yes| No| ID of the information element.|
-| content | Uint8Array | Yes| No| Content of the information element.|
-
-
-## WifiChannelWidth<sup>9+</sup>
+## WifiStandard<sup>10+</sup>
 
-Enumerates the WLAN channel widths.
+Enumerates the Wi-Fi standards.
 
 **System capability**: SystemCapability.Communication.WiFi.STA
 
-
 | **Name**| **Value**| **Description**|
 | -------- | -------- | -------- |
-| WIDTH_20MHZ | 0 | 20 MHz.|
-| WIDTH_40MHZ | 1 | 40 MHz.|
-| WIDTH_80MHZ | 2 | 80 MHz.|
-| WIDTH_160MHZ | 3 | 160 MHz.|
-| WIDTH_80MHZ_PLUS | 4 | 80 MHz<sup>+</sup>.|
-| WIDTH_INVALID | 5 | Invalid value.|
+| WIFI_STANDARD_UNDEFINED | 0 | Invalid Wi-Fi standard|
+| WIFI_STANDARD_11A | 1 | 802.11a|
+| WIFI_STANDARD_11B | 2 | 802.11b|
+| WIFI_STANDARD_11G | 3 | 802.11g|
+| WIFI_STANDARD_11N | 4 | 802.11n|
+| WIFI_STANDARD_11AC | 5 | 802.11ac|
+| WIFI_STANDARD_11AX | 6 | 802.11ax|
+| WIFI_STANDARD_11AD | 7 | 802.11ad|
 
+## WifiInfoElem<sup>9+</sup>
 
-## wifi.getScanResultsSync<sup>9+</sup>
+Represents a WLAN information element.
 
-getScanResultsSync(): &nbsp;Array&lt;[WifiScanInfo](#wifiscaninfo)&gt;
+**System capability**: SystemCapability.Communication.WiFi.STA
 
-Obtains the scan result. This API returns the result synchronously.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.GET_WIFI_PEERS_MAC (or ohos.permission.LOCATION)
+| **Name**| **Type**| **Readable**| **Writable**| **Description**|
+| -------- | -------- | -------- | -------- | -------- |
+| eid | number | Yes| No| ID of the information element.|
+| content | Uint8Array | Yes| No| Content of the information element.|
 
-**System capability**: SystemCapability.Communication.WiFi.STA
 
-**Return value**
+## WifiChannelWidth<sup>9+</sup>
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | &nbsp;Array&lt;[WifiScanInfo](#wifiscaninfo)&gt; | Scan result obtained.|
+Enumerates the WLAN channel widths.
 
-**Error codes**
+**System capability**: SystemCapability.Communication.WiFi.STA
 
-For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
-| 2501000  | Operation failed.|
+| **Name**| **Value**| **Description**|
+| -------- | -------- | -------- |
+| WIDTH_20MHZ | 0 | 20 MHz|
+| WIDTH_40MHZ | 1 | 40 MHz|
+| WIDTH_80MHZ | 2 | 80 MHz|
+| WIDTH_160MHZ | 3 | 160 MHz|
+| WIDTH_80MHZ_PLUS | 4 | 80 MHz<sup>+</sup>|
+| WIDTH_INVALID | 5 | Invalid value|
 
 ## wifi.addDeviceConfig<sup>9+</sup>
 
@@ -316,24 +332,43 @@ Adds network configuration. This API uses a promise to return the result.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to add.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to add.|
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | Promise&lt;number&gt; | Promise used to return the ID of the added network configuration. If **-1** is returned, the network configuration fails to be added.|
+| **Type**| **Description**|
+| -------- | -------- |
+| Promise&lt;number&gt; | Promise used to return the ID of the added network configuration. If **-1** is returned, the network configuration fails to be added.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let config = {
+			ssid : "****",
+			preSharedKey : "****",
+			securityType : 0
+		}
+		wifiManager.addDeviceConfig(config).then(result => {
+			console.info("result:" + JSON.stringify(result));
+		});	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## WifiDeviceConfig<sup>9+</sup>
 
 Represents the WLAN configuration.
@@ -348,14 +383,14 @@ Represents the WLAN configuration.
 | preSharedKey | string | Yes| No| PSK of the hotspot.|
 | isHiddenSsid | boolean | Yes| No| Whether the network is hidden.|
 | securityType | [WifiSecurityType](#wifisecuritytype) | Yes| No| Security type.|
-| creatorUid | number | Yes| No| ID of the creator.<br> **System API**: This is a system API.|
-| disableReason | number | Yes| No| Reason for disabling WLAN.<br> **System API**: This is a system API.|
-| netId | number | Yes| No| Network ID.<br> **System API**: This is a system API.|
-| randomMacType | number | Yes| No| Random MAC type.<br> **System API**: This is a system API.|
-| randomMacAddr | string | Yes| No| Random MAC address.<br> **System API**: This is a system API.|
-| ipType | [IpType](#iptype9) | Yes| No| IP address type.<br> **System API**: This is a system API.|
-| staticIp | [IpConfig](#ipconfig9) | Yes| No| Static IP address configuration.<br> **System API**: This is a system API.|
-| eapConfig<sup>9+</sup> | [WifiEapConfig](#wifieapconfig9) | Yes| No| EAP configuration.<br> **System API**: This is a system API.|
+| creatorUid | number | Yes| No| ID of the creator.<br>**System API**: This is a system API.|
+| disableReason | number | Yes| No| Reason for disabling WLAN.<br>**System API**: This is a system API.|
+| netId | number | Yes| No| Network ID.<br>**System API**: This is a system API.|
+| randomMacType | number | Yes| No| Random MAC type.<br>**System API**: This is a system API.|
+| randomMacAddr | string | Yes| No| Random MAC address.<br>**System API**: This is a system API.|
+| ipType | [IpType](#iptype9) | Yes| No| IP address type.<br>**System API**: This is a system API.|
+| staticIp | [IpConfig](#ipconfig9) | Yes| No| Static IP address configuration.<br>**System API**: This is a system API.|
+| eapConfig<sup>9+</sup> | [WifiEapConfig](#wifieapconfig9) | Yes| No| EAP configuration.<br>**System API**: This is a system API.|
 
 
 ## IpType<sup>9+</sup>
@@ -473,19 +508,38 @@ Adds network configuration. This API uses an asynchronous callback to return the
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to add.|
-  | callback | AsyncCallback&lt;number&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the network configuration ID. If **data** is **-1**, the operation has failed. If **err** is not **0**, an error has occurred.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to add.|
+| callback | AsyncCallback&lt;number&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the network configuration ID. If **data** is **-1**, the operation has failed. If **err** is not **0**, an error has occurred.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let config = {
+			ssid : "****",
+			preSharedKey : "****",
+			securityType : 0
+		}
+		wifiManager.addDeviceConfig(config,(error,result) => {
+			console.info("result:" + JSON.stringify(result));
+		});	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.addCandidateConfig<sup>9+</sup>
 
 addCandidateConfig(config: WifiDeviceConfig): Promise&lt;number&gt;
@@ -498,24 +552,42 @@ Adds the configuration of a candidate network. This API uses a promise to return
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to add.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to add.|
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | Promise&lt;number&gt; | Promise used to return the network configuration ID.|
+| **Type**| **Description**|
+| -------- | -------- |
+| Promise&lt;number&gt; | Promise used to return the network configuration ID.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+`````
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let config = {
+			ssid : "****",
+			preSharedKey : "****",
+			securityType : 0
+		}
+		wifiManager.addCandidateConfig(config).then(result => {
+			console.info("result:" + JSON.stringify(result));
+		});	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+`````
+
 ## wifi.addCandidateConfig<sup>9+</sup>
 
 addCandidateConfig(config: WifiDeviceConfig, callback: AsyncCallback&lt;number&gt;): void
@@ -528,19 +600,37 @@ Adds the configuration of a candidate network. This API uses an asynchronous cal
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to add.|
-  | callback | AsyncCallback&lt;number&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the network configuration ID. If **data** is **-1**, the operation has failed. If **err** is not **0**, an error has occurred.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration to add.|
+| callback | AsyncCallback&lt;number&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the network configuration ID. If **data** is **-1**, the operation has failed. If **err** is not **0**, an error has occurred.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+`````
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let config = {
+			ssid : "****",
+			preSharedKey : "****",
+			securityType : 0
+		}
+		wifiManager.addCandidateConfig(config,(error,result) => {
+			console.info("result:" + JSON.stringify(result));
+		});	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+`````
+
 ## wifi.removeCandidateConfig<sup>9+</sup>
 
 removeCandidateConfig(networkId: number): Promise&lt;void&gt;
@@ -553,24 +643,39 @@ Removes the configuration of a candidate network. This API uses a promise to ret
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | networkId | number | Yes| ID of the network configuration to remove.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| networkId | number | Yes| ID of the network configuration to remove.|
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | Promise&lt;void&gt; | Promise used to return the result.|
+| **Type**| **Description**|
+| -------- | -------- |
+| Promise&lt;void&gt; | Promise used to return the result.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let networkId = 0;
+		wifiManager.removeCandidateConfig(networkId).then(result => {
+			console.info("result:" + JSON.stringify(result));
+		});	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.removeCandidateConfig<sup>9+</sup>
 
 removeCandidateConfig(networkId: number, callback: AsyncCallback&lt;void&gt;): void
@@ -583,48 +688,84 @@ Removes the configuration of a candidate network. This API uses an asynchronous
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | networkId | number | Yes| ID of the network configuration to remove.|
-  | callback | AsyncCallback&lt;void&gt; | Yes| Callback invoked to return the result. If the operation is successful, the value of **err** is **0**. If **err** is not **0**, an error has occurred.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| networkId | number | Yes| ID of the network configuration to remove.|
+| callback | AsyncCallback&lt;void&gt; | Yes| Callback invoked to return the result. If the operation is successful, the value of **err** is **0**. If **err** is not **0**, an error has occurred.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let networkId = 0;
+		wifiManager.removeCandidateConfig(networkId,(error,result) => {
+		console.info("result:" + JSON.stringify(result));
+		});	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.getCandidateConfigs<sup>9+</sup>
 
 getCandidateConfigs(): &nbsp;Array&lt;[WifiDeviceConfig](#wifideviceconfig)&gt;
 
 Obtains candidate network configuration.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.STA
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | &nbsp;Array&lt;[WifiDeviceConfig](#wifideviceconfig)&gt; | Candidate network configuration obtained.|
+| **Type**| **Description**|
+| -------- | -------- |
+| &nbsp;Array&lt;[WifiDeviceConfig](#wifideviceconfig)&gt; | Candidate network configuration obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+
+`````
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let configs = wifiManager.getCandidateConfigs();
+		console.info("configs:" + JSON.stringify(configs));
+		let len = Object.keys(configs).length;
+        console.log("result len: " + len);
+		if(len > 0){
+			for (var i = 0; i < len; ++i) {
+				console.info("ssid: " + configs[i].ssid);
+				console.info("bssid: " + configs[i].bssid);
+			}
+		}	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+	
+`````
+
 ## wifi.connectToCandidateConfig<sup>9+</sup>
 
 connectToCandidateConfig(networkId: number): void
 
-Connects to a candidate network.
+Connects to a candidate network added by the application. If the device is already connected to a hotspot, disconnect it from the hotspot first.
 
 **Required permissions**: ohos.permission.SET_WIFI_INFO
 
@@ -632,24 +773,38 @@ Connects to a candidate network.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | networkId | number | Yes| ID of the candidate network configuration.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| networkId | number | Yes| ID of the candidate network configuration.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 | 2501001  | Wifi is closed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let networkId = 0;
+		let ret = wifiManager.connectToCandidateConfig(networkId);
+		console.info("result:" + ret);
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+	
+```
+
 ## wifi.connectToNetwork<sup>9+</sup>
 
 connectToNetwork(networkId: number): void
 
-Connects to the specified network.
+Connects to the specified network. If the device is already connected to a hotspot, use **disconnect()** to disconnect it from the hotspot first.
 
 **System API**: This is a system API.
 
@@ -659,24 +814,37 @@ Connects to the specified network.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | networkId | number | Yes| Network configuration ID.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| networkId | number | Yes| Network configuration ID.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 | 2501001  | Wifi is closed.|
 
+**Example**
+
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let networkId = 0;
+		wifiManager.connectToNetwork(networkId);
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}	
+```
+
 ## wifi.connectToDevice<sup>9+</sup>
 
 connectToDevice(config: WifiDeviceConfig): void
 
-Connects to the specified network.
+Connects to the specified network. If the device is already connected to a hotspot, use **disconnect()** to disconnect it from the hotspot first.
 
 **System API**: This is a system API.
 
@@ -687,19 +855,36 @@ Connects to the specified network.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | config | [WifiDeviceConfig](#wifideviceconfig) | Yes| WLAN configuration.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| config | [WifiDeviceConfig](#wifideviceconfig) | Yes| Configuration of the WLAN to connect. |
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 | 2501001  | Wifi is closed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let config = {
+			ssid : "****",
+			preSharedKey : "****",
+			securityType : 3
+		}
+		wifiManager.connectToDevice(config);
+				
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.disconnect<sup>9+</sup>
 
 disconnect(): void
@@ -717,10 +902,21 @@ Disconnects the network.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.disconnect();
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.getSignalLevel<sup>9+</sup>
 
 getSignalLevel(rssi: number, band: number): number
@@ -733,25 +929,40 @@ Obtains the WLAN signal level.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | rssi | number | Yes| RSSI of the hotspot, in dBm.|
-  | band | number | Yes| Frequency band of the WLAN AP.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| rssi | number | Yes| RSSI of the hotspot, in dBm.|
+| band | number | Yes| Frequency band of the WLAN AP.|
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | number | Signal level obtained. The value range is [0, 4].|
+| **Type**| **Description**|
+| -------- | -------- |
+| number | Signal level obtained. The value range is [0, 4].|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let rssi = 0;
+		let band = 0;
+		let level = wifiManager.getSignalLevel(rssi,band);
+		console.info("lelvel:" + JSON.stringify(lelvel));
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+
+```
+
 ## wifi.getLinkedInfo<sup>9+</sup>
 
 getLinkedInfo(): Promise&lt;WifiLinkedInfo&gt;
@@ -764,16 +975,16 @@ Obtains WLAN connection information. This API uses a promise to return the resul
 
 **Return value**
 
-  | Type| Description|
-  | -------- | -------- |
-  | Promise&lt;[WifiLinkedInfo](#wifilinkedinfo)&gt; | Promise used to return the WLAN connection information obtained.|
+| Type| Description|
+| -------- | -------- |
+| Promise&lt;[WifiLinkedInfo](#wifilinkedinfo)&gt; | Promise used to return the WLAN connection information obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 | 2501001  | Wifi is closed.|
 
@@ -789,22 +1000,22 @@ Obtains WLAN connection information. This API uses an asynchronous callback to r
 
 **Parameters**
 
-  | Name| Type| Mandatory| Description|
-  | -------- | -------- | -------- | -------- |
-  | callback | AsyncCallback&lt;[WifiLinkedInfo](#wifilinkedinfo)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the WLAN connection information obtained. If **err** is not **0**, an error has occurred.|
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| callback | AsyncCallback&lt;[WifiLinkedInfo](#wifilinkedinfo)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the WLAN connection information obtained. If **err** is not **0**, an error has occurred.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 | 2501001  | Wifi is closed.|
 
 **Example**
   ```js
-  import wifi from '@ohos.wifi';
+  import wifi from '@ohos.wifiManager';
   
   wifi.getLinkedInfo((err, data) => {
       if (err) {
@@ -832,21 +1043,25 @@ Represents the WLAN connection information.
 | -------- | -------- | -------- | -------- | -------- |
 | ssid | string | Yes| No| SSID of the hotspot, in UTF-8 format.|
 | bssid | string | Yes| No| BSSID of the hotspot.|
-| networkId | number | Yes| No| Network configuration ID.<br> **System API**: This is a system API.|
+| networkId | number | Yes| No| Network configuration ID.<br>**System API**: This is a system API.|
 | rssi | number | Yes| No| RSSI of the hotspot, in dBm.|
-| band | number | Yes| No| Frequency band of the WLAN AP.|
-| linkSpeed | number | Yes| No| Speed of the WLAN AP.|
+| band | number | Yes| No| Band of the WLAN AP.|
+| linkSpeed | number | Yes| No| Uplink speed of the WLAN AP.|
+| rxLinkSpeed<sup>10+</sup> | number | Yes| No| Downlink speed of the WLAN AP.|
+| maxSupportedTxLinkSpeed<sup>10+</sup> | number | Yes| No| Maximum uplink speed supported.|
+| maxSupportedRxLinkSpeed<sup>10+</sup> | number | Yes| No| Maximum uplink speed supported.|
 | frequency | number | Yes| No| Frequency of the WLAN AP.|
 | isHidden | boolean | Yes| No| Whether to hide the WLAN AP.|
 | isRestricted | boolean | Yes| No| Whether to restrict data volume at the WLAN AP.|
-| chload | number | Yes| No| Channel load. A larger value indicates a higher load.<br> **System API**: This is a system API.|
-| snr | number | Yes| No| Signal-to-noise ratio (SNR).<br> **System API**: This is a system API.|
-| macType<sup>9+</sup> | number | Yes| No| MAC address type.|
+| chload | number | Yes| No| Channel load. A larger value indicates a higher load.<br>**System API**: This is a system API.|
+| snr | number | Yes| No| Signal-to-noise ratio (SNR).<br>**System API**: This is a system API.|
+| macType | number | Yes| No| MAC address type.|
 | macAddress | string | Yes| No| MAC address of the device.|
 | ipAddress | number | Yes| No| IP address of the device that sets up the WLAN connection.|
-| suppState | [SuppState](#suppstate) | Yes| No| Supplicant state.<br> **System API**: This is a system API.|
+| suppState | [SuppState](#suppstate) | Yes| No| Supplicant state.<br>**System API**: This is a system API.|
 | connState | [ConnState](#connstate) | Yes| No| WLAN connection state.|
-
+| channelWidth<sup>10+</sup> | [WifiChannelWidth](#wifichannelwidth) | Yes| No| Channel bandwidth of the connected hotspot.|
+| wifiStandard<sup>10+</sup> | [WifiStandard](#wifistandard) | Yes| No| Wi-Fi standard used by the connected hotspot.|
 
 ## ConnState<sup>9+</sup>
 
@@ -889,12 +1104,29 @@ Enumerates the supplicant states.
 | UNINITIALIZED | 10 | The supplicant failed to set up the connection.|
 | INVALID | 11 | Invalid value.|
 
+## SuppState<sup>10+</sup>
 
-## wifi.isConnected<sup>9+</sup>
-
-isConnected(): boolean
+Enumerates the Wi-Fi standards.
 
-Checks whether the WLAN is connected.
+**System capability**: SystemCapability.Communication.WiFi.STA
+
+| Name| Value| Description|
+| -------- | -------- | -------- |
+| WIFI_STANDARD_UNDEFINED | 0 | Undefined|
+| WIFI_STANDARD_11A | 1 | 802.11a|
+| WIFI_STANDARD_11B | 2 | 802.11b|
+| WIFI_STANDARD_11G | 3 | 802.11g|
+| WIFI_STANDARD_11N | 4 | 802.11n|
+| WIFI_STANDARD_11AC | 5 | 802.11ac|
+| WIFI_STANDARD_11AX | 6 | 802.11ax|
+| WIFI_STANDARD_11AD | 7 | 802.11ad|
+
+
+## wifi.isConnected<sup>9+</sup>
+
+isConnected(): boolean
+
+Checks whether the WLAN is connected.
 
 **Required permissions**: ohos.permission.GET_WIFI_INFO
 
@@ -902,18 +1134,31 @@ Checks whether the WLAN is connected.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | boolean | Returns **true** if the WLAN is connected; returns **false** otherwise.|
+| **Type**| **Description**|
+| -------- | -------- |
+| boolean | Returns **true** if the WLAN is connected; returns **false** otherwise.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let ret = wifiManager.isConnected();
+		console.info("isConnected:" + ret);
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+
+```
+
 ## wifi.getSupportedFeatures<sup>9+</sup>
 
 getSupportedFeatures(): number
@@ -928,9 +1173,9 @@ Obtains the features supported by this device.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | number | Feature value. |
+| **Type**| **Description**|
+| -------- | -------- |
+| number | Feature value. |
 
 **Feature IDs**
 
@@ -951,10 +1196,23 @@ Obtains the features supported by this device.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2401000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let ret = wifiManager.getSupportedFeatures();
+		console.info("supportedFeatures:" + ret);
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+
+```
+
 ## wifi.isFeatureSupported<sup>9+</sup>
 
 isFeatureSupported(featureId: number): boolean
@@ -968,24 +1226,38 @@ Checks whether the device supports the specified WLAN feature.
 **Parameters**
 
 
-  | **Name**| **Type**| Mandatory| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | featureId | number | Yes| Feature ID.|
+| **Name**| **Type**| Mandatory| **Description**|
+| -------- | -------- | -------- | -------- |
+| featureId | number | Yes| Feature ID.|
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | boolean | Returns **true** if the feature is supported; returns **false** otherwise.|
+| **Type**| **Description**|
+| -------- | -------- |
+| boolean | Returns **true** if the feature is supported; returns **false** otherwise.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2401000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let featureId = 0;
+		let ret = wifiManager.isFeatureSupported(featureId);
+		console.info("isFeatureSupported:" + ret);
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+
+```
+
 ## wifi.getDeviceMacAddress<sup>9+</sup>
 
 getDeviceMacAddress(): string[]
@@ -1000,18 +1272,31 @@ Obtains the device MAC address.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | string[] | MAC address obtained.|
+| **Type**| **Description**|
+| -------- | -------- |
+| string[] | MAC address obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let ret = wifiManager.getDeviceMacAddress();
+		console.info("deviceMacAddress:" + JSON.stringify(ret));
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+
+```
+
 ## wifi.getIpInfo<sup>9+</sup>
 
 getIpInfo(): IpInfo
@@ -1024,18 +1309,30 @@ Obtains IP information.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | [IpInfo](#ipinfo9) | IP information obtained.|
+| **Type**| **Description**|
+| -------- | -------- |
+| [IpInfo](#ipinfo9) | IP information obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let info = wifiManager.getIpInfo();
+		console.info("info:" + JSON.stringify(info));
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## IpInfo<sup>9+</sup>
 
 Represents IP information.
@@ -1065,18 +1362,30 @@ Obtains the country code.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | string | Country code obtained.|
+| **Type**| **Description**|
+| -------- | -------- |
+| string | Country code obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2401000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let code = wifiManager.getCountryCode();
+		console.info("code:" + code);
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.reassociate<sup>9+</sup>
 
 reassociate(): void
@@ -1093,11 +1402,22 @@ Re-associates with the network.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 | 2501001  | Wifi is closed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.reassociate();
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.reconnect<sup>9+</sup>
 
 reconnect(): void
@@ -1114,11 +1434,22 @@ Reconnects to the network.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 | 2501001  | Wifi is closed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.reconnect();
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.getDeviceConfigs<sup>9+</sup>
 
 getDeviceConfigs(): &nbsp;Array&lt;[WifiDeviceConfig](#wifideviceconfig)&gt;
@@ -1127,27 +1458,39 @@ Obtains network configuration.
 
 **System API**: This is a system API.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.GET_WIFI_CONFIG
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, ohos.permission.APPROXIMATELY_LOCATION, and ohos.permission.GET_WIFI_CONFIG
 
 **System capability**: SystemCapability.Communication.WiFi.STA
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | &nbsp;Array&lt;[WifiDeviceConfig](#wifideviceconfig)&gt; | Array of network configuration obtained.|
+| **Type**| **Description**|
+| -------- | -------- |
+| &nbsp;Array&lt;[WifiDeviceConfig](#wifideviceconfig)&gt; | Array of network configuration obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
-## wifi.updateNetwork<sup>9+</sup>
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let configs = wifiManager.getDeviceConfigs();
+		console.info("configs:" + JSON.stringify(configs));
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
+## wifi.updateDeviceConfig<sup>9+</sup>
 
-updateNetwork(config: WifiDeviceConfig): number
+updateDeviceConfig(config: WifiDeviceConfig): number
 
 Updates network configuration.
 
@@ -1159,27 +1502,44 @@ Updates network configuration.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | config | [WifiDeviceConfig](#wifideviceconfig) | Yes| New WLAN configuration.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| config | [WifiDeviceConfig](#wifideviceconfig) | Yes| New WLAN configuration.|
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | number | ID of the updated network configuration. The value **-1** indicates that the operation has failed.|
+| **Type**| **Description**|
+| -------- | -------- |
+| number | ID of the updated network configuration. The value **-1** indicates that the operation has failed.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
-## wifi.disableNetwork<sup>9+</sup>
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let config = {
+			ssid : "****",
+			preSharedKey : "****",
+			securityType : 3
+		}
+		let ret = wifiManager.updateDeviceConfig(config);
+		console.error("ret:" + ret);		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
+## wifi.disableDeviceConfig<sup>9+</sup>
 
-disableNetwork(netId: number): void
+disableDeviceConfig(networkId: number): void
 
 Disables network configuration.
 
@@ -1191,21 +1551,33 @@ Disables network configuration.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | netId | number | Yes| ID of the network configuration to disable.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| netId | number | Yes| ID of the network configuration to disable.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
-## wifi.removeAllNetwork<sup>9+</sup>
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let netId = 0;
+		wifiManager.disableDeviceConfig(netId);		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
+## wifi.removeAllDeviceConfigs<sup>9+</sup>
 
-removeAllNetwork(): void
+removeAllDeviceConfigs(): void
 
 Removes the configuration of all networks.
 
@@ -1219,13 +1591,24 @@ Removes the configuration of all networks.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
-## wifi.removeDevice<sup>9+</sup>
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
 
-removeDevice(id: number): void
+	try {
+		wifiManager.removeAllDeviceConfigs();		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
+## wifi.removeDeviceConfig<sup>9+</sup>
+
+removeDeviceConfig(networkId: number): void
 
 Removes the specified network configuration.
 
@@ -1237,18 +1620,114 @@ Removes the specified network configuration.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | id | number | Yes| ID of the network configuration to remove.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| networkId | number | Yes| ID of the network configuration to remove.|
+
+**Error codes**
+
+For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
+
+| **ID**| **Error Message**|
+| -------- | -------- |
+| 2501000  | Operation failed.|
+
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let id = 0;
+		wifiManager.removeDeviceConfig(id);		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
+## wifi.isBandTypeSupported<sup>10+</sup>
+
+isBandTypeSupported(bandType: WifiBandType): boolean
+
+Checks whether the current frequency band is supported.
+
+**Required permissions**: ohos.permission.GET_WIFI_INFO
+
+**System capability**: SystemCapability.Communication.WiFi.STA
+
+**Parameters**
+
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| bandType | WifiBandType | Yes| Wi-Fi band type.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let type = 0;
+		boolean isBandTypeSupported = wifiManager.isBandTypeSupported(type);
+		console.info("isBandTypeSupported:" + isBandTypeSupported);		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
+## WifiBandType <sup>10+</sup>
+
+Enumerates the Wi-Fi band types.
+
+**System capability**: SystemCapability.Communication.WiFi.STA
+
+| Name| Value| Description|
+| -------- | -------- | -------- |
+| WIFI_BAND_NONE | 0 | Undefined|
+| WIFI_BAND_2G | 1 | 2 GHz|
+| WIFI_BAND_5G | 2 | 5 GHz|
+| WIFI_BAND_6G | 3 | 6 GHz|
+| WIFI_BAND_60G | 4 | 60 GHz|
+
+
+## wifi.get5GChannelList<sup>10+</sup>
+
+get5GChannelList(): Array&lt;number&gt;
+
+Obtains the list of 5 GHz channels supported by this device.
+
+**System API**: This is a system API.
+
+**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.GET_WIFI_CONFIG
+
+**System capability**: SystemCapability.Communication.WiFi.STA
+
+**Error codes**
+
+For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
+
+| **ID**| **Error Message**|
+| -------- | -------- |
+| 2501000  | Operation failed.|
+
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let channelList = wifiManager.get5GChannelList();
+		console.info("channelList:" + JSON.stringify(channelList));		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.enableHotspot<sup>9+</sup>
 
 enableHotspot(): void
@@ -1265,10 +1744,21 @@ Enables this hotspot.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2601000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.enableHotspot();	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.disableHotspot<sup>9+</sup>
 
 disableHotspot(): void
@@ -1285,10 +1775,21 @@ Disables this hotspot.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2601000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.disableHotspot();	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.isHotspotDualBandSupported<sup>9+</sup>
 
 isHotspotDualBandSupported(): boolean
@@ -1303,18 +1804,30 @@ Checks whether the hotspot supports dual band.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | boolean | Returns **true** if the hotspot supports dual band; returns **false** otherwise.|
+| **Type**| **Description**|
+| -------- | -------- |
+| boolean | Returns **true** if the hotspot supports dual band; returns **false** otherwise.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2601000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let ret = wifiManager.isHotspotDualBandSupported();
+		console.info("result:" + ret);		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.isHotspotActive<sup>9+</sup>
 
 isHotspotActive(): boolean
@@ -1329,18 +1842,30 @@ Checks whether this hotspot is active.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | boolean | Returns **true** if the hotspot is active; returns **false** otherwise.|
+| **Type**| **Description**|
+| -------- | -------- |
+| boolean | Returns **true** if the hotspot is active; returns **false** otherwise.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2601000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let ret = wifiManager.isHotspotActive();
+		console.info("result:" + ret);		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.setHotspotConfig<sup>9+</sup>
 
 setHotspotConfig(config: HotspotConfig): void
@@ -1355,18 +1880,38 @@ Sets hotspot configuration.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | config | [HotspotConfig](#hotspotconfig9) | Yes| Hotspot configuration to set.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| config | [HotspotConfig](#hotspotconfig9) | Yes| Hotspot configuration to set.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2601000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let config = {
+			ssid: "****",
+			securityType: 3,
+			band: 0,
+			channel: 0,
+			preSharedKey: "****",
+			maxConn: 0
+		}
+		let ret = wifiManager.setHotspotConfig();
+		console.info("result:" + ret);		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## HotspotConfig<sup>9+</sup>
 
 Represents the hotspot configuration.
@@ -1377,12 +1922,12 @@ Represents the hotspot configuration.
 
 | **Name**| **Type**| **Readable**| **Writable**| **Description**|
 | -------- | -------- | -------- | -------- | -------- |
-| ssid | string | Yes| No| SSID of the hotspot, in UTF-8 format.|
-| securityType | [WifiSecurityType](#wifisecuritytype) | Yes| No| Security type.|
-| band | number | Yes| No| Hotspot band. The value **1** stands for 2.4 GHz, the value **2** for 5 GHz, and the value **3** for dual band.|
-| preSharedKey | string | Yes| No| PSK of the hotspot.|
-| maxConn | number | Yes| No| Maximum number of connections allowed.|
-
+| ssid | string | Yes| Yes| SSID of the hotspot, in UTF-8 format.|
+| securityType | [WifiSecurityType](#wifisecuritytype) | Yes| Yes| Security type.|
+| band | number | Yes| Yes| Hotspot band. The value **1** stands for 2.4 GHz, the value **2** for 5 GHz, and the value **3** for dual band.|
+| channel<sup>10+</sup> | number | Yes| Yes| Hotspot channel (2.4 GHz: 1 to 14; 5 GHz: 7 to 196; Dual-band: not supported currently) |
+| preSharedKey | string | Yes| Yes| PSK of the hotspot.|
+| maxConn | number | Yes| Yes| Maximum number of connections allowed.|
 
 ## wifi.getHotspotConfig<sup>9+</sup>
 
@@ -1398,44 +1943,68 @@ Obtains hotspot configuration.
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | [HotspotConfig](#hotspotconfig9) | Hotspot configuration obtained.|
+| **Type**| **Description**|
+| -------- | -------- |
+| [HotspotConfig](#hotspotconfig9) | Hotspot configuration obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2601000  | Operation failed.|
 
-## wifi.getStations<sup>9+</sup>
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let config = wifiManager.getHotspotConfig();
+		console.info("result:" + JSON.stringify(config));		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
+## wifi.getHotspotStations<sup>9+</sup>
 
-getStations(): &nbsp;Array&lt;[StationInfo](#stationinfo9)&gt;
+getHotspotStations(): &nbsp;Array&lt;[StationInfo](#stationinfo9)&gt;
 
 Obtains information about the connected stations.
 
 **System API**: This is a system API.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.MANAGE_WIFI_HOTSPOT (available only to system applications)
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, ohos.permission.APPROXIMATELY_LOCATION, and ohos.permission.MANAGE_WIFI_HOTSPOT (available only to system applications)
 
 **System capability**: SystemCapability.Communication.WiFi.AP.Core
 
 **Return value**
 
-  | **Type**| **Description**|
-  | -------- | -------- |
-  | &nbsp;Array&lt;[StationInfo](#stationinfo9)&gt; | Connected stations obtained.|
+| **Type**| **Description**|
+| -------- | -------- |
+| &nbsp;Array&lt;[StationInfo](#stationinfo9)&gt; | Connected stations obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2601000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let stations = wifiManager.getHotspotStations();
+		console.info("result:" + JSON.stringify(stations));		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## StationInfo<sup>9+</sup>
 
 Represents the station information.
@@ -1463,18 +2032,36 @@ Obtains P2P link information. This API uses a promise to return the result.
 
 **Return value**
 
-  | Type| Description|
-  | -------- | -------- |
-  | Promise&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo9)&gt; | Promise used to return the P2P link information obtained.|
+| Type| Description|
+| -------- | -------- |
+| Promise&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo9)&gt; | Promise used to return the P2P link information obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	wifi.getP2pLinkedInfo((err, data) => {
+    if (err) {
+        console.error("get p2p linked info error");
+        return;
+    }
+		console.info("get wifi p2p linked info: " + JSON.stringify(data));
+	});
+
+	wifi.getP2pLinkedInfo().then(data => {
+		console.info("get wifi p2p linked info: " + JSON.stringify(data));
+	});
+```
+
+
 ## WifiP2pLinkedInfo<sup>9+</sup>
 
 Represents the P2P link information.
@@ -1512,81 +2099,98 @@ Obtains P2P link information. This API uses an asynchronous callback to return t
 
 **Parameters**
 
-  | Name| Type| Mandatory| Description|
-  | -------- | -------- | -------- | -------- |
-  | callback | AsyncCallback&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo9)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the P2P link information. If **err** is not **0**, an error has occurred.|
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| callback | AsyncCallback&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo9)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the P2P link information. If **err** is not **0**, an error has occurred.|
 
 
-## wifi.getCurrentGroup<sup>9+</sup>
+## wifi.getCurrentP2pGroup<sup>9+</sup>
 
-getCurrentGroup(): Promise&lt;WifiP2pGroupInfo&gt;
+getCurrentP2pGroup(): Promise&lt;WifiP2pGroupInfo&gt;
 
 Obtains the current P2P group information. This API uses a promise to return the result.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Return value**
 
-  | Type| Description|
-  | -------- | -------- |
-  | Promise&lt;[WifiP2pGroupInfo](#wifip2pgroupinfo9)&gt; | Promise used to return the P2P group information obtained.|
+| Type| Description|
+| -------- | -------- |
+| Promise&lt;[WifiP2pGroupInfo](#wifip2pgroupinfo9)&gt; | Promise used to return the P2P group information obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
-## wifi.getCurrentGroup<sup>9+</sup>
+## wifi.getCurrentP2pGroup<sup>9+</sup>
 
-getCurrentGroup(callback: AsyncCallback&lt;WifiP2pGroupInfo&gt;): void
+getCurrentP2pGroup(callback: AsyncCallback&lt;WifiP2pGroupInfo&gt;): void
 
 Obtains the current P2P group information. This API uses an asynchronous callback to return the result.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Parameters**
 
-  | Name| Type| Mandatory| Description|
-  | -------- | -------- | -------- | -------- |
-  | callback | AsyncCallback&lt;[WifiP2pGroupInfo](#wifip2pgroupinfo9)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the group information obtained. If **err** is not **0**, an error has occurred.|
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| callback | AsyncCallback&lt;[WifiP2pGroupInfo](#wifip2pgroupinfo9)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the group information obtained. If **err** is not **0**, an error has occurred.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	wifi.getCurrentP2pGroup((err, data) => {
+    if (err) {
+        console.error("get current P2P group error");
+        return;
+    }
+		console.info("get current P2P group: " + JSON.stringify(data));
+	});
+
+	wifi.getCurrentP2pGroup().then(data => {
+		console.info("get current P2P group: " + JSON.stringify(data));
+	});
+```
+
 ## wifi.getP2pPeerDevices<sup>9+</sup>
 
 getP2pPeerDevices(): Promise&lt;WifiP2pDevice[]&gt;
 
 Obtains the peer device list in the P2P connection. This API uses a promise to return the result.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Return value**
 
-  | Type| Description|
-  | -------- | -------- |
-  | Promise&lt;[WifiP2pDevice[]](#wifip2pdevice9)&gt; | Promise used to return the peer device list.|
+| Type| Description|
+| -------- | -------- |
+| Promise&lt;[WifiP2pDevice[]](#wifip2pdevice9)&gt; | Promise used to return the peer device list.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
 ## wifi.getP2pPeerDevices<sup>9+</sup>
@@ -1595,24 +2199,41 @@ getP2pPeerDevices(callback: AsyncCallback&lt;WifiP2pDevice[]&gt;): void
 
 Obtains the peer device list in the P2P connection. This API uses an asynchronous callback to return the result.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Parameters**
 
-  | Name| Type| Mandatory| Description|
-  | -------- | -------- | -------- | -------- |
-  | callback | AsyncCallback&lt;[WifiP2pDevice[]](#wifip2pdevice9)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the peer device list obtained. If **err** is not **0**, an error has occurred.|
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| callback | AsyncCallback&lt;[WifiP2pDevice[]](#wifip2pdevice9)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the peer device list obtained. If **err** is not **0**, an error has occurred.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	wifi.getP2pPeerDevices((err, data) => {
+    if (err) {
+        console.error("get P2P peer devices error");
+        return;
+    }
+		console.info("get P2P peer devices: " + JSON.stringify(data));
+	});
+
+	wifi.getP2pPeerDevices().then(data => {
+		console.info("get P2P peer devices: " + JSON.stringify(data));
+	});
+```
+
 ## WifiP2pDevice<sup>9+</sup>
 
 Represents the P2P device information.
@@ -1655,16 +2276,16 @@ Obtains the local device information in the P2P connection. This API uses a prom
 
 **Return value**
 
-  | Type| Description|
-  | -------- | -------- |
-  | Promise&lt;[WifiP2pDevice](#wifip2pdevice9)&gt; | Promise used to return the local device information obtained.|
+| Type| Description|
+| -------- | -------- |
+| Promise&lt;[WifiP2pDevice](#wifip2pdevice9)&gt; | Promise used to return the local device information obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
 ## wifi.getP2pLocalDevice<sup>9+</sup>
@@ -1679,14 +2300,34 @@ Obtains the local device information in the P2P connection. This API uses an asy
 
 **Parameters**
 
-  | Name| Type| Mandatory| Description|
-  | -------- | -------- | -------- | -------- |
-  | callback | AsyncCallback&lt;[WifiP2pDevice](#wifip2pdevice9)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the local device information obtained. If **err** is not **0**, an error has occurred.|
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| callback | AsyncCallback&lt;[WifiP2pDevice](#wifip2pdevice9)&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the local device information obtained. If **err** is not **0**, an error has occurred.|
+
+| **ID**| **Error Message**|
+| -------- | -------- |
+| 2801000  | Operation failed.|
+
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	wifiManager.getP2pLocalDevice((err, data) => {
+    if (err) {
+        console.error("get P2P local device error");
+        return;
+    }
+		console.info("get P2P local device: " + JSON.stringify(data));
+	});
 
+	wifi.getP2pLocalDevice().then(data => {
+		console.info("get P2P local device: " + JSON.stringify(data));
+	});
+```
 
-## wifi.createGroup<sup>9+</sup>
+## wifi.createP2pGroup<sup>9+</sup>
 
-createGroup(config: WifiP2PConfig): void
+createP2pGroup(config: WifiP2PConfig): void
 
 Creates a P2P group.
 
@@ -1696,18 +2337,37 @@ Creates a P2P group.
 
 **Parameters**
 
-  | **Name**| **Type**| Mandatory| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | config | [WifiP2PConfig](#wifip2pconfig9) | Yes| Group configuration.|
+| **Name**| **Type**| Mandatory| **Description**|
+| -------- | -------- | -------- | -------- |
+| config | [WifiP2PConfig](#wifip2pconfig9) | Yes| Group configuration.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let config = {
+			deviceAddress: "****",
+			netId: 0,
+			passphrase: "*****",
+			groupName: "****",
+			goBand: 0
+		}
+		wifiManager.createP2pGroup(config);	
+		
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## WifiP2PConfig<sup>9+</sup>
 
 Represents P2P group configuration.
@@ -1736,9 +2396,9 @@ Enumerates the P2P group frequency bands.
 | GO_BAND_5GHZ | 2 | 5 GHz.|
 
 
-## wifi.removeGroup<sup>9+</sup>
+## wifi.removeP2pGroup<sup>9+</sup>
 
-removeGroup(): void
+removeP2pGroup(): void
 
 Removes this P2P group.
 
@@ -1750,33 +2410,43 @@ Removes this P2P group.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.removeP2pGroup();	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.p2pConnect<sup>9+</sup>
 
 p2pConnect(config: WifiP2PConfig): void
 
 Sets up a P2P connection.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Parameters**
 
-
-  | **Name**| **Type**| Mandatory| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | config | [WifiP2PConfig](#wifip2pconfig9) | Yes| P2P group configuration.|
+| **Name**| **Type**| Mandatory| **Description**|
+| -------- | -------- | -------- | -------- |
+| config | [WifiP2PConfig](#wifip2pconfig9) | Yes| P2P group configuration.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
 **Example**
@@ -1843,7 +2513,7 @@ For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorco
   setTimeout(function() {wifi.off("p2pDeviceChange", recvP2pDeviceChangeFunc);}, 125 * 1000);
   setTimeout(function() {wifi.off("p2pPeerDeviceChange", recvP2pPeerDeviceChangeFunc);}, 125 * 1000);
   setTimeout(function() {wifi.off("p2pPersistentGroupChange", recvP2pPersistentGroupChangeFunc);}, 125 * 1000);
-  console.info("start discover devices -> " + wifi.startDiscoverDevices());
+  console.info("start discover devices -> " + wifi.startP2pDiscoverDevices());
   ```
 
 ## wifi.p2pCancelConnect<sup>9+</sup>
@@ -1860,17 +2530,28 @@ Cancels this P2P connection.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
-## wifi.startDiscoverDevices<sup>9+</sup>
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.p2pCancelConnect();	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
 
-startDiscoverDevices(): void
+## wifi.startDiscoverP2pDevices<sup>9+</sup>
+
+startDiscoverP2pDevices(): void
 
 Starts to discover devices.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
@@ -1878,13 +2559,24 @@ Starts to discover devices.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
-## wifi.stopDiscoverDevices<sup>9+</sup>
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.startDiscoverP2pDevices();	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
 
-stopDiscoverDevices(): void
+## wifi.stopDiscoverP2pDevices<sup>9+</sup>
+
+stopDiscoverP2pDevices(): void
 
 Stops discovering devices.
 
@@ -1896,13 +2588,24 @@ Stops discovering devices.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
-## wifi.deletePersistentGroup<sup>9+</sup>
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		wifiManager.stopDiscoverP2pDevices();	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
 
-deletePersistentGroup(netId: number): void
+## wifi.deletePersistentP2pGroup<sup>9+</sup>
+
+deletePersistentP2pGroup(netId: number): void
 
 Deletes a persistent group.
 
@@ -1915,18 +2618,30 @@ Deletes a persistent group.
 **Parameters**
 
 
-  | **Name**| **Type**| Mandatory| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | netId | number | Yes| ID of the group to delete.|
+| **Name**| **Type**| Mandatory| **Description**|
+| -------- | -------- | -------- | -------- |
+| netId | number | Yes| ID of the group to delete.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let netId = 0;
+		wifiManager.deletePersistentP2pGroup(netId);	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.getP2pGroups<sup>9+</sup>
 
 getP2pGroups(): Promise&lt;Array&lt;WifiP2pGroupInfo&gt;&gt;
@@ -1935,24 +2650,42 @@ Obtains information about all P2P groups. This API uses a promise to return the
 
 **System API**: This is a system API.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Return value**
 
-  | Type| Description|
-  | -------- | -------- |
-  | Promise&lt;&nbsp;Array&lt;[WifiP2pGroupInfo](#wifip2pgroupinfo9)&gt;&nbsp;&gt; | Promise used to return the group information obtained.|
+| Type| Description|
+| -------- | -------- |
+| Promise&lt;&nbsp;Array&lt;[WifiP2pGroupInfo](#wifip2pgroupinfo9)&gt;&nbsp;&gt; | Promise used to return the group information obtained.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	wifiManager.getP2pGroups((err, data) => {
+    if (err) {
+        console.error("get P2P groups error");
+        return;
+    }
+		console.info("get P2P groups: " + JSON.stringify(data));
+	});
+
+	wifi.getP2pGroups().then(data => {
+		console.info("get P2P groups: " + JSON.stringify(data));
+	});
+	
+```
+
 ## WifiP2pGroupInfo<sup>9+</sup>
 
 Represents the P2P group information.
@@ -1980,27 +2713,27 @@ Obtains information about all P2P groups. This API uses an asynchronous callback
 
 **System API**: This is a system API.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Parameters**
 
-  | Name| Type| Mandatory| Description|
-  | -------- | -------- | -------- | -------- |
-  | callback | AsyncCallback&lt;&nbsp;Array&lt;[WifiP2pGroupInfo](#wifip2pgroupinfo9)&gt;&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the group information obtained. If **err** is not **0**, an error has occurred.|
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| callback | AsyncCallback&lt;&nbsp;Array&lt;[WifiP2pGroupInfo](#wifip2pgroupinfo9)&gt;&gt; | Yes| Callback invoked to return the result. If the operation is successful, **err** is **0** and **data** is the group information obtained. If **err** is not **0**, an error has occurred.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
-## wifi.setDeviceName<sup>9+</sup>
+## wifi.setP2pDeviceName<sup>9+</sup>
 
-setDeviceName(devName: string): void
+setP2pDeviceName(devName: string): void
 
 Sets the device name.
 
@@ -2012,18 +2745,30 @@ Sets the device name.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | devName | string | Yes| Device name to set.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| devName | string | Yes| Device name to set.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+```
+	import wifi from '@ohos.wifiManager';
+
+	try {
+		let name = "****";
+		wifiManager.setP2pDeviceName(netId);	
+	}catch(error){
+		console.error("failed:" + JSON.stringify(error));
+	}
+```
+
 ## wifi.on('wifiStateChange')<sup>9+</sup>
 
 on(type: "wifiStateChange", callback: Callback&lt;number&gt;): void
@@ -2036,17 +2781,17 @@ Registers the WLAN state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **wifiStateChange**.|
-  | callback | Callback&lt;number&gt; | Yes| Callback invoked to return the WLAN state.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **wifiStateChange**.|
+| callback | Callback&lt;number&gt; | Yes| Callback invoked to return the WLAN state.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
 **WLAN states** 
@@ -2071,17 +2816,17 @@ Unregisters the WLAN state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **wifiStateChange**.|
-  | callback | Callback&lt;number&gt; | No| Callback for the WLAN state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **wifiStateChange**.|
+| callback | Callback&lt;number&gt; | No| Callback for the WLAN state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
 **Example**
@@ -2112,10 +2857,10 @@ Registers the WLAN connection state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **wifiConnectionChange**.|
-  | callback | Callback&lt;number&gt; | Yes| Callback invoked to return the WLAN connection state.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **wifiConnectionChange**.|
+| callback | Callback&lt;number&gt; | Yes| Callback invoked to return the WLAN connection state.|
 
 **WLAN connection states**
 
@@ -2128,8 +2873,8 @@ Registers the WLAN connection state change events.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
 ## wifi.off('wifiConnectionChange')<sup>9+</sup>
@@ -2144,19 +2889,34 @@ Unregisters the WLAN connection state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **wifiConnectionChange**.|
-  | callback | Callback&lt;number&gt; | No| Callback for the WLAN connection state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **wifiConnectionChange**.|
+| callback | Callback&lt;number&gt; | No| Callback for the WLAN connection state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+  ```js
+  import wifi from '@ohos.wifi';
+  
+  var recvWifiConnectionChangeFunc = result => {
+      console.info("Receive wifi connection change event: " + result);
+  }
+  
+  // Register an event.
+  wifi.on("wifiConnectionChange", recvWifiConnectionChangeFunc);
+  
+  // Unregister an event.
+  wifi.off("wifiConnectionChange", recvWifiConnectionChangeFunc);
+  ```
+
 ## wifi.on('wifiScanStateChange')<sup>9+</sup>
 
 on(type: "wifiScanStateChange", callback: Callback&lt;number&gt;): void
@@ -2169,10 +2929,10 @@ Registers the WLAN scan state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **wifiScanStateChange**.|
-  | callback | Callback&lt;number&gt; | Yes| Callback invoked to return the WLAN scan state.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **wifiScanStateChange**.|
+| callback | Callback&lt;number&gt; | Yes| Callback invoked to return the WLAN scan state.|
 
 **WLAN scan states**
 
@@ -2185,8 +2945,8 @@ Registers the WLAN scan state change events.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
 ## wifi.off('wifiScanStateChange')<sup>9+</sup>
@@ -2210,10 +2970,25 @@ Unregisters the WLAN scan state change events.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+  ```js
+  import wifi from '@ohos.wifi';
+  
+  var recvWifiScanStateChangeFunc = result => {
+      console.info("Receive Wifi scan state change event: " + result);
+  }
+  
+  // Register an event.
+  wifi.on("wifiScanStateChange", recvWifiScanStateChangeFunc);
+  
+  // Unregister an event.
+  wifi.off("wifiScanStateChange", recvWifiScanStateChangeFunc);
+  ```
+
 ## wifi.on('wifiRssiChange')<sup>9+</sup>
 
 on(type: "wifiRssiChange", callback: Callback&lt;number&gt;): void
@@ -2226,17 +3001,17 @@ Registers the RSSI change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **wifiRssiChange**.|
-  | callback | Callback&lt;number&gt; | Yes| Callback invoked to return the RSSI, in dBm.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **wifiRssiChange**.|
+| callback | Callback&lt;number&gt; | Yes| Callback invoked to return the RSSI, in dBm.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
 ## wifi.off('wifiRssiChange')<sup>9+</sup>
@@ -2251,19 +3026,34 @@ Unregisters the RSSI change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **wifiRssiChange**.|
-  | callback | Callback&lt;number&gt; | No| Callback for the RSSI change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **wifiRssiChange**.|
+| callback | Callback&lt;number&gt; | No| Callback for the RSSI change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2501000  | Operation failed.|
 
+**Example**
+  ```js
+  import wifi from '@ohos.wifiManager';
+  
+  var recvWifiRssiChangeFunc = result => {
+      console.info("Receive wifi rssi change event: " + result);
+  }
+  
+  // Register an event.
+  wifiManager.on("wifiRssiChange", recvWifiRssiChangeFunc);
+  
+  // Unregister an event.
+  wifiManager.off("wifiRssiChange", recvWifiRssiChangeFunc);
+  ```
+
 ## wifi.on('hotspotStateChange')<sup>9+</sup>
 
 on(type: "hotspotStateChange", callback: Callback&lt;number&gt;): void
@@ -2276,10 +3066,10 @@ Registers the hotspot state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **hotspotStateChange**.|
-  | callback | Callback&lt;number&gt; | Yes| Callback invoked to return the hotspot state.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **hotspotStateChange**.|
+| callback | Callback&lt;number&gt; | Yes| Callback invoked to return the hotspot state.|
 
 **Hotspot states**
 
@@ -2294,8 +3084,8 @@ Registers the hotspot state change events.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2601000  | Operation failed.|
 
 ## wifi.off('hotspotStateChange')<sup>9+</sup>
@@ -2310,19 +3100,34 @@ Unregisters the hotspot state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **hotspotStateChange**.|
-  | callback | Callback&lt;number&gt; | No| Callback for the hotspot state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **hotspotStateChange**.|
+| callback | Callback&lt;number&gt; | No| Callback for the hotspot state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2601000  | Operation failed.|
 
+**Example**
+  ```js
+  import wifi from '@ohos.wifiManager';
+  
+  var recvHotspotStateChangeFunc = result => {
+      console.info("Receive hotspot state change event: " + result);
+  }
+  
+  // Register an event.
+  wifiManager.on("hotspotStateChange", recvHotspotStateChangeFunc);
+  
+  // Unregister an event.
+  wifiManager.off("hotspotStateChange", recvHotspotStateChangeFunc);
+  ```
+
 ## wifi.on('p2pStateChange')<sup>9+</sup>
 
 on(type: "p2pStateChange", callback: Callback&lt;number&gt;): void
@@ -2335,10 +3140,10 @@ Registers the P2P state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pStateChange**.|
-  | callback | Callback&lt;number&gt; | Yes| Callback invoked to return the P2P state.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pStateChange**.|
+| callback | Callback&lt;number&gt; | Yes| Callback invoked to return the P2P state.|
 
 **P2P states**
 
@@ -2354,8 +3159,8 @@ Registers the P2P state change events.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
 ## wifi.off('p2pStateChange')<sup>9+</sup>
@@ -2370,19 +3175,34 @@ Unregisters the P2P state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pStateChange**.|
-  | callback | Callback&lt;number&gt; | No| Callback for the P2P state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pStateChange**.|
+| callback | Callback&lt;number&gt; | No| Callback for the P2P state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+  ```js
+  import wifi from '@ohos.wifiManager';
+  
+  var recvP2pStateChangeFunc = result => {
+      console.info("Receive p2p state change event: " + result);
+  }
+  
+  // Register an event.
+  wifiManager.on("p2pStateChange", recvP2pStateChangeFunc);
+  
+  // Unregister an event.
+  wifiManager.off("p2pStateChange", recvP2pStateChangeFunc);
+  ```
+
   ## wifi.on('p2pConnectionChange')<sup>9+</sup>
 
 on(type: "p2pConnectionChange", callback: Callback&lt;WifiP2pLinkedInfo&gt;): void
@@ -2395,17 +3215,17 @@ Registers the P2P connection state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pConnectionChange**.|
-  | callback | Callback&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo9)&gt; | Yes| Callback invoked to return the P2P connection state.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pConnectionChange**.|
+| callback | Callback&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo9)&gt; | Yes| Callback invoked to return the P2P connection state.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
 ## wifi.off('p2pConnectionChange')<sup>9+</sup>
@@ -2420,42 +3240,57 @@ Unregisters the P2P connection state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pConnectionChange**.|
-  | callback | Callback&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo9)&gt; | No| Callback for the P2P connection state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pConnectionChange**.|
+| callback | Callback&lt;[WifiP2pLinkedInfo](#wifip2plinkedinfo9)&gt; | No| Callback for the P2P connection state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+  ```js
+  import wifi from '@ohos.wifiManager';
+  
+  var recvP2pConnectionChangeFunc = result => {
+      console.info("Receive p2p connection change event: " + result);
+  }
+  
+  // Register an event.
+  wifiManager.on("p2pConnectionChange", recvP2pConnectionChangeFunc);
+  
+  // Unregister an event.
+  wifiManager.off("p2pConnectionChange", recvP2pConnectionChangeFunc);
+  ```
+
 ## wifi.on('p2pDeviceChange')<sup>9+</sup>
 
 on(type: "p2pDeviceChange", callback: Callback&lt;WifiP2pDevice&gt;): void
 
 Registers the P2P device state change events.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pDeviceChange**.|
-  | callback | Callback&lt;[WifiP2pDevice](#wifip2pdevice9)&gt; | Yes| Callback invoked to return the P2P device state.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pDeviceChange**.|
+| callback | Callback&lt;[WifiP2pDevice](#wifip2pdevice9)&gt; | Yes| Callback invoked to return the P2P device state.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
 ## wifi.off('p2pDeviceChange')<sup>9+</sup>
@@ -2464,48 +3299,63 @@ off(type: "p2pDeviceChange", callback?: Callback&lt;WifiP2pDevice&gt;): void
 
 Unregisters the P2P device state change events.
 
-**Required permissions**: ohos.permission.LOCATION
+**Required permissions**: ohos.permission.LOCATION and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pDeviceChange**.|
-  | callback | Callback&lt;[WifiP2pDevice](#wifip2pdevice9)&gt; | No| Callback for the P2P device state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pDeviceChange**.|
+| callback | Callback&lt;[WifiP2pDevice](#wifip2pdevice9)&gt; | No| Callback for the P2P device state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+  ```js
+  import wifi from '@ohos.wifiManager';
+  
+  var recvP2pDeviceChangeFunc = result => {
+      console.info("Receive recv p2p device change event: " + result);
+  }
+  
+  // Register an event.
+  wifiManager.on("p2pDeviceChange", recvP2pDeviceChangeFunc);
+  
+  // Unregister an event.
+  wifiManager.off("p2pDeviceChange", recvP2pDeviceChangeFunc);
+  ```
+
 ## wifi.on('p2pPeerDeviceChange')<sup>9+</sup>
 
 on(type: "p2pPeerDeviceChange", callback: Callback&lt;WifiP2pDevice[]&gt;): void
 
 Registers the P2P peer device state change events.
 
-**Required permissions**: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION
+**Required permissions**: ohos.permission.GET_WIFI_INFO, ohos.permission.LOCATION, and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pPeerDeviceChange**.|
-  | callback | Callback&lt;[WifiP2pDevice[]](#wifip2pdevice9)&gt; | Yes| Callback invoked to return the P2P peer device state.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pPeerDeviceChange**.|
+| callback | Callback&lt;[WifiP2pDevice[]](#wifip2pdevice9)&gt; | Yes| Callback invoked to return the P2P peer device state.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
 ## wifi.off('p2pPeerDeviceChange')<sup>9+</sup>
@@ -2514,25 +3364,40 @@ off(type: "p2pPeerDeviceChange", callback?: Callback&lt;WifiP2pDevice[]&gt;): vo
 
 Unregisters the P2P peer device state change events.
 
-**Required permissions**: ohos.permission.LOCATION
+**Required permissions**: ohos.permission.LOCATION and ohos.permission.APPROXIMATELY_LOCATION
 
 **System capability**: SystemCapability.Communication.WiFi.P2P
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pPeerDeviceChange**.|
-  | callback | Callback&lt;[WifiP2pDevice[]](#wifip2pdevice9)&gt; | No| Callback for the P2P peer device state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pPeerDeviceChange**.|
+| callback | Callback&lt;[WifiP2pDevice[]](#wifip2pdevice9)&gt; | No| Callback for the P2P peer device state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+  ```js
+  import wifi from '@ohos.wifiManager';
+  
+  var recvP2pPeerDeviceChangeFunc = result => {
+      console.info("Receive recv p2p peer device change event: " + result);
+  }
+  
+  // Register an event.
+  wifiManager.on("p2pPeerDeviceChange", recvP2pPeerDeviceChangeFunc);
+  
+  // Unregister an event.
+  wifiManager.off("p2pPeerDeviceChange", recvP2pPeerDeviceChangeFunc);
+  ```
+
 ## wifi.on('p2pPersistentGroupChange')<sup>9+</sup>
 
 on(type: "p2pPersistentGroupChange", callback: Callback&lt;void&gt;): void
@@ -2545,17 +3410,17 @@ Registers the P2P persistent group state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pPersistentGroupChange**.|
-  | callback | Callback&lt;void&gt; | Yes| Callback invoked to return the P2P persistent group state.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pPersistentGroupChange**.|
+| callback | Callback&lt;void&gt; | Yes| Callback invoked to return the P2P persistent group state.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
 ## wifi.off('p2pPersistentGroupChange')<sup>9+</sup>
@@ -2570,19 +3435,34 @@ Unregisters the P2P persistent group state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pPersistentGroupChange**.|
-  | callback | Callback&lt;void&gt; | No| Callback for the P2P persistent group state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pPersistentGroupChange**.|
+| callback | Callback&lt;void&gt; | No| Callback for the P2P persistent group state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
+**Example**
+  ```js
+  import wifi from '@ohos.wifiManager';
+  
+  var recvP2pPersistentGroupChangeFunc = result => {
+      console.info("Receive recv p2p persistent group change event: " + result);
+  }
+  
+  // Register an event.
+  wifiManager.on("p2pPersistentGroupChange", recvP2pPersistentGroupChangeFunc);
+  
+  // Unregister an event.
+  wifiManager.off("p2pPersistentGroupChange", recvP2pPersistentGroupChangeFunc);
+  ```
+
 ## wifi.on('p2pDiscoveryChange')<sup>9+</sup>
 
 on(type: "p2pDiscoveryChange", callback: Callback&lt;number&gt;): void
@@ -2595,10 +3475,10 @@ Registers the P2P device discovery state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pDiscoveryChange**.|
-  | callback | Callback&lt;number&gt; | Yes| Callback invoked to return the P2P device discovery state.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pDiscoveryChange**.|
+| callback | Callback&lt;number&gt; | Yes| Callback invoked to return the P2P device discovery state.|
 
 **P2P discovered device states**
 
@@ -2611,8 +3491,8 @@ Registers the P2P device discovery state change events.
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
 
 ## wifi.off('p2pDiscoveryChange')<sup>9+</sup>
@@ -2627,15 +3507,30 @@ Unregisters the P2P device discovery state change events.
 
 **Parameters**
 
-  | **Name**| **Type**| **Mandatory**| **Description**|
-  | -------- | -------- | -------- | -------- |
-  | type | string | Yes| Event type. The value is **p2pDiscoveryChange**.|
-  | callback | Callback&lt;number&gt; | No| Callback for the P2P device discovery state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
+| **Name**| **Type**| **Mandatory**| **Description**|
+| -------- | -------- | -------- | -------- |
+| type | string | Yes| Event type. The value is **p2pDiscoveryChange**.|
+| callback | Callback&lt;number&gt; | No| Callback for the P2P device discovery state change. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.|
 
 **Error codes**
 
 For details about the error codes, see [Wi-Fi Error Codes](../errorcodes/errorcode-wifi.md).
 
-| **Type**| **Description**|
-  | -------- | -------- |
+| **ID**| **Error Message**|
+| -------- | -------- |
 | 2801000  | Operation failed.|
+
+**Example**
+  ```js
+  import wifi from '@ohos.wifiManager';
+  
+  var recvP2pDiscoveryChangeFunc = result => {
+      console.info("Receive recv p2p discovery change event: " + result);
+  }
+  
+  // Register an event.
+  wifiManager.on("p2pDiscoveryChange", recvP2pDiscoveryChangeFunc);
+  
+  // Unregister an event.
+  wifiManager.off("p2pDiscoveryChange", recvP2pDiscoveryChangeFunc);
+  ```