WLAN

The WLAN module provides basic wireless local area network (WLAN) functions, peer-to-peer (P2P) functions, and WLAN message notification services. It allows applications to communicate with other devices over WLAN.

NOTE

The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

import wifiManager from '@ohos.wifiManager';

wifi.enableWifi9+

enableWifi(): void

Enables WLAN.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.disableWifi9+

disableWifi(): void

Disables WLAN.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.isWifiActive9+

isWifiActive(): boolean

Checks whether WLAN is enabled.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
boolean Returns true if WLAN is enabled; returns false otherwise.

wifi.scan9+

scan(): void

Starts a scan for WLAN.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.LOCATION

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.getScanResults9+

getScanResults(): Promise<Array<WifiScanInfo>>

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< Array<WifiScanInfo> > Promise used to return the detected hotspots.

wifi.getScanResults9+

getScanResults(callback: AsyncCallback<Array<WifiScanInfo>>): void

Obtains the scan result. This API uses an asynchronous callback 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

Parameters

Name Type Mandatory Description
callback AsyncCallback< Array<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

import wifi from '@ohos.wifi';

wifi.getScanInfos((err, result) => {
    if (err) {
        console.error("get scan info error");
        return;
    }

    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);
    }
});

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);
    }
});

WifiScanInfo9+

Represents WLAN hotspot information.

System capability: SystemCapability.Communication.WiFi.STA

Name Type Readable Writable Description
ssid string Yes No Service set identifier (SSID) of the hotspot, in UTF-8 format.
bssid string Yes No Basic service set identifier (BSSID) of the hotspot.
capabilities string Yes No Hotspot capabilities.
securityType WifiSecurityType Yes No WLAN security type.
rssi number Yes No Received signal strength indicator (RSSI) of the hotspot, in dBm.
band number Yes No Frequency band of the WLAN access point (AP).
frequency number Yes No Frequency of the WLAN AP.
channelWidth number Yes No Channel width of the WLAN AP.
centerFrequency0 number Yes No Center frequency of the hotspot.
centerFrequency1 number Yes No Center frequency of the hotspot. If the hotspot uses two non-overlapping WLAN channels, two center frequencies, namely centerFrequency0 and centerFrequency1, are returned.
infoElems Array<WifiInfoElem> Yes No Information elements.
timestamp number Yes No Timestamp.

WifiSecurityType9+

Enumerates the WLAN security types.

System capability: SystemCapability.Communication.WiFi.Core

Name Value Description
WIFI_SEC_TYPE_INVALID 0 Invalid security type.
WIFI_SEC_TYPE_OPEN 1 Open security type.
WIFI_SEC_TYPE_WEP 2 Wired Equivalent Privacy (WEP).
WIFI_SEC_TYPE_PSK 3 Pre-shared key (PSK).
WIFI_SEC_TYPE_SAE 4 Simultaneous Authentication of Equals (SAE).
WIFI_SEC_TYPE_EAP9+ 5 Extensible Authentication protocol (EAP).
WIFI_SEC_TYPE_EAP_SUITE_B9+ 6 Suite B 192-bit encryption.
WIFI_SEC_TYPE_OWE9+ 7 Opportunistic Wireless Encryption (OWE).
WIFI_SEC_TYPE_WAPI_CERT9+ 8 WLAN Authentication and Privacy Infrastructure (WAPI) in certificate-based mode (WAPI-CERT).
WIFI_SEC_TYPE_WAPI_PSK9+ 9 WAPI-PSK.

WifiInfoElem9+

Represents a WLAN information element.

System capability: SystemCapability.Communication.WiFi.STA

Name Type Readable Writable Description
eid number Yes No ID of the information element.
content Uint8Array Yes No Content of the information element.

WifiChannelWidth9+

Enumerates the WLAN channel widths.

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+.
WIDTH_INVALID 5 Invalid value.

wifi.getScanResultsSync9+

getScanResultsSync():  Array<WifiScanInfo>

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)

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
 Array<WifiScanInfo> Scan result obtained.

wifi.addDeviceConfig9+

addDeviceConfig(config: WifiDeviceConfig): Promise<number>

Adds network configuration. This API uses a promise to return the result.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.SET_WIFI_CONFIG

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
config WifiDeviceConfig Yes WLAN configuration to add.

Return value

Type Description
Promise<number> Promise used to return the ID of the added network configuration. If -1 is returned, the network configuration fails to be added.

WifiDeviceConfig9+

Represents the WLAN configuration.

System capability: SystemCapability.Communication.WiFi.STA

Name Type Readable Writable Description
ssid string Yes No SSID of the hotspot, in UTF-8 format.
bssid string Yes No BSSID of the hotspot.
preSharedKey string Yes No PSK of the hotspot.
isHiddenSsid boolean Yes No Whether the network is hidden.
securityType WifiSecurityType Yes No Security type.
creatorUid number Yes No ID of the creator.
System API: This is a system API.
disableReason number Yes No Reason for disabling WLAN.
System API: This is a system API.
netId number Yes No Network ID.
System API: This is a system API.
randomMacType number Yes No Random MAC type.
System API: This is a system API.
randomMacAddr string Yes No Random MAC address.
System API: This is a system API.
ipType IpType Yes No IP address type.
System API: This is a system API.
staticIp IpConfig Yes No Static IP address configuration.
System API: This is a system API.
eapConfig9+ WifiEapConfig Yes No EAP configuration.
System API: This is a system API.

IpType9+

Enumerates the IP address types.

System API: This is a system API.

System capability: SystemCapability.Communication.WiFi.STA

Name Value Description
STATIC 0 Static IP address.
DHCP 1 IP address allocated by DHCP.
UNKNOWN 2 Not specified.

IpConfig9+

Represents IP configuration information.

System API: This is a system API.

System capability: SystemCapability.Communication.WiFi.STA

Name Type Readable Writable Description
ipAddress number Yes No IP address.
gateway number Yes No Gateway.
prefixLength number Yes No Subnet mask.
dnsServers number[] Yes No Domain name server (DNS) information.
domains Array<string> Yes No Domain information.

WifiEapConfig9+

Represents EAP configuration information.

System API: This is a system API.

System capability: SystemCapability.Communication.WiFi.STA

Name Type Readable Writable Description
eapMethod EapMethod Yes No EAP authentication method.
phase2Method Phase2Method Yes No Phase 2 authentication method.
identity string Yes No Identity Information.
anonymousIdentity string Yes No Anonymous identity.
password string Yes No Password.
caCertAliases string Yes No CA certificate alias.
caPath string Yes No CA certificate path.
clientCertAliases string Yes No Client certificate alias.
altSubjectMatch string Yes No A string to match the alternate subject.
domainSuffixMatch string Yes No A string to match the domain suffix.
realm string Yes No Realm for the passpoint credential.
plmn string Yes No Public land mobile network (PLMN) of the passpoint credential provider.
eapSubId number Yes No Sub-ID of the SIM card.

EapMethod9+

Enumerates the EAP authentication methods.

System API: This is a system API.

System capability: SystemCapability.Communication.WiFi.STA

Name Value Description
EAP_NONE 0 Not specified.
EAP_PEAP 1 PEAP.
EAP_TLS 2 TLS.
EAP_TTLS 3 TTLS.
EAP_PWD 4 Password.
EAP_SIM 5 SIM.
EAP_AKA 6 AKA.
EAP_AKA_PRIME 7 AKA Prime.
EAP_UNAUTH_TLS 8 UNAUTH TLS.

Phase2Method9+

Enumerates the Phase 2 authentication methods.

System API: This is a system API.

System capability: SystemCapability.Communication.WiFi.STA

Name Value Description
PHASE2_NONE 0 Not specified.
PHASE2_PAP 1 PAP.
PHASE2_MSCHAP 2 MS-CHAP.
PHASE2_MSCHAPV2 3 MS-CHAPv2.
PHASE2_GTC 4 GTC .
PHASE2_SIM 5 SIM.
PHASE2_AKA 6 AKA.
PHASE2_AKA_PRIME 7 AKA Prime.

wifi.addDeviceConfig9+

addDeviceConfig(config: WifiDeviceConfig, callback: AsyncCallback<number>): void

Adds network configuration. This API uses an asynchronous callback to return the result.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.SET_WIFI_CONFIG

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
config WifiDeviceConfig Yes WLAN configuration to add.
callback AsyncCallback<number> 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.

wifi.addCandidateConfig9+

addCandidateConfig(config: WifiDeviceConfig): Promise<number>

Adds the configuration of a candidate network. This API uses a promise to return the result.

Required permissions: ohos.permission.SET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
config WifiDeviceConfig Yes WLAN configuration to add.

Return value

Type Description
Promise<number> Promise used to return the network configuration ID.

wifi.addCandidateConfig9+

addCandidateConfig(config: WifiDeviceConfig, callback: AsyncCallback<number>): void

Adds the configuration of a candidate network. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.SET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
config WifiDeviceConfig Yes WLAN configuration to add.
callback AsyncCallback<number> 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.

wifi.removeCandidateConfig9+

removeCandidateConfig(networkId: number): Promise<void>

Removes the configuration of a candidate network. This API uses a promise to return the result.

Required permissions: ohos.permission.SET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
networkId number Yes ID of the network configuration to remove.

Return value

Type Description
Promise<void> Promise used to return the result.

wifi.removeCandidateConfig9+

removeCandidateConfig(networkId: number, callback: AsyncCallback<void>): void

Removes the configuration of a candidate network. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.SET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
networkId number Yes ID of the network configuration to remove.
callback AsyncCallback<void> 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.

wifi.getCandidateConfigs9+

getCandidateConfigs():  Array<WifiDeviceConfig>

Obtains candidate network configuration.

Required permissions: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
 Array<WifiDeviceConfig> Candidate network configuration obtained.

wifi.connectToCandidateConfig9+

connectToCandidateConfig(networkId: number): void

Connects to a candidate network.

Required permissions: ohos.permission.SET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
networkId number Yes ID of the candidate network configuration.

wifi.connectToNetwork9+

connectToNetwork(networkId: number): void

Connects to the specified network.

System API: This is a system API.

Required permissions: ohos.permission.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
networkId number Yes Network configuration ID.

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.connectToDevice9+

connectToDevice(config: WifiDeviceConfig): void

Connects to the specified network.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO, ohos.permission.SET_WIFI_CONFIG, and ohos.permissio.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
config WifiDeviceConfig Yes WLAN configuration.

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.disconnect9+

disconnect(): void

Disconnects the network.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.getSignalLevel9+

getSignalLevel(rssi: number, band: number): number

Obtains the WLAN signal level.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

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].

wifi.getLinkedInfo9+

getLinkedInfo(): Promise<WifiLinkedInfo>

Obtains WLAN connection information. This API uses a promise to return the result.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
Promise<WifiLinkedInfo> Promise used to return the WLAN connection information obtained.

wifi.getLinkedInfo9+

getLinkedInfo(callback: AsyncCallback<WifiLinkedInfo>): void

Obtains WLAN connection information. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
callback AsyncCallback<WifiLinkedInfo> 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

import wifi from '@ohos.wifi';

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 => {
    console.info("get wifi linked info: " + JSON.stringify(data));
}).catch(error => {
    console.info("get linked info error");
});

WifiLinkedInfo9+

Represents the WLAN connection information.

System capability: SystemCapability.Communication.WiFi.STA

Name Type Readable Writable Description
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.
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.
System API: This is a system API.
snr number Yes No Signal-to-noise ratio (SNR).
System API: This is a system API.
macType9+ 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 Yes No Supplicant state.
System API: This is a system API.
connState ConnState Yes No WLAN connection state.

ConnState9+

Enumerates the WLAN connection states.

System capability: SystemCapability.Communication.WiFi.STA

Name Value Description
SCANNING 0 The device is scanning for available APs.
CONNECTING 1 A WLAN connection is being established.
AUTHENTICATING 2 An authentication is being performed for a WLAN connection.
OBTAINING_IPADDR 3 The IP address of the WLAN connection is being acquired.
CONNECTED 4 A WLAN connection is established.
DISCONNECTING 5 The WLAN connection is being disconnected.
DISCONNECTED 6 The WLAN connection is disconnected.
UNKNOWN 7 Failed to set up the WLAN connection.

SuppState9+

Enumerates the supplicant states.

System API: This is a system API.

System capability: SystemCapability.Communication.WiFi.STA

Name Value Description
DISCONNECTED 0 The supplicant is disconnected from the AP.
INTERFACE_DISABLED 1 The network interface is disabled.
INACTIVE 2 The supplicant is inactive.
SCANNING 3 The supplicant is scanning for a WLAN connection.
AUTHENTICATING 4 The supplicant is being authenticated.
ASSOCIATING 5 The supplicant is being associated with an AP.
ASSOCIATED 6 The supplicant is associated with an AP.
FOUR_WAY_HANDSHAKE 7 A four-way handshake is being performed for the supplicant.
GROUP_HANDSHAKE 8 A group handshake is being performed for the supplicant.
COMPLETED 9 The authentication is complete.
UNINITIALIZED 10 The supplicant failed to set up the connection.
INVALID 11 Invalid value.

wifi.isConnected9+

isConnected(): boolean

Checks whether the WLAN is connected.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
boolean Returns true if the WLAN is connected; returns false otherwise.

wifi.getSupportedFeatures9+

getSupportedFeatures(): number

Obtains the features supported by this device.

System API: This is a system API.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.Core

Return value

Type Description
number Feature value.

Feature IDs

Value Description
0x0001 WLAN infrastructure mode
0x0002 5 GHz feature
0x0004 Generic Advertisement Service (GAS)/Access Network Query Protocol (ANQP) feature
0x0008 Wi-Fi Direct
0x0010 SoftAP
0x0040 Wi-Fi AWare
0x8000 WLAN AP/STA concurrency
0x8000000 WPA3 Personal (WPA-3 SAE)
0x10000000 WPA3-Enterprise Suite B
0x20000000 Enhanced open feature

wifi.isFeatureSupported9+

isFeatureSupported(featureId: number): boolean

Checks whether the device supports the specified WLAN feature.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.Core

Parameters

Name Type Mandatory Description
featureId number Yes Feature ID.

Return value

Type Description
boolean Returns true if the feature is supported; returns false otherwise.

wifi.getDeviceMacAddress9+

getDeviceMacAddress(): string[]

Obtains the device MAC address.

System API: This is a system API.

Required permissions: ohos.permission.GET_WIFI_LOCAL_MAC and ohos.permission.GET_WIFI_INFO (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
string[] MAC address obtained.

wifi.getIpInfo9+

getIpInfo(): IpInfo

Obtains IP information.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
IpInfo IP information obtained.

IpInfo9+

Represents IP information.

System capability: SystemCapability.Communication.WiFi.STA

Name Type Readable Writable Description
ipAddress number Yes No IP address.
gateway number Yes No Gateway.
netmask number Yes No Subnet mask.
primaryDns number Yes No IP address of the preferred DNS server.
secondDns number Yes No IP address of the alternate DNS server.
serverIp number Yes No IP address of the DHCP server.
leaseDuration number Yes No Lease duration of the IP address.

wifi.getCountryCode9+

getCountryCode(): string

Obtains the country code.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.Core

Return value

Type Description
string Country code obtained.

wifi.reassociate9+

reassociate(): void

Re-associates with the network.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.reconnect9+

reconnect(): void

Reconnects to the network.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.getDeviceConfigs9+

getDeviceConfigs():  Array<WifiDeviceConfig>

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

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
 Array<WifiDeviceConfig> Array of network configuration obtained.

wifi.updateNetwork9+

updateNetwork(config: WifiDeviceConfig): number

Updates network configuration.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.SET_WIFI_CONFIG

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
config 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.

wifi.disableNetwork9+

disableNetwork(netId: number): void

Disables network configuration.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
netId number Yes ID of the network configuration to disable.

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.removeAllNetwork9+

removeAllNetwork(): void

Removes the configuration of all networks.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.removeDevice9+

removeDevice(id: number): void

Removes the specified network configuration.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
id number Yes ID of the network configuration to remove.

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.enableHotspot9+

enableHotspot(): void

Enables this hotspot.

System API: This is a system API.

Required permissions: ohos.permission.MANAGE_WIFI_HOTSPOT (available only to system applications)

System capability: SystemCapability.Communication.WiFi.AP.Core

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.disableHotspot9+

disableHotspot(): void

Disables this hotspot.

System API: This is a system API.

Required permissions: ohos.permission.MANAGE_WIFI_HOTSPOT (available only to system applications)

System capability: SystemCapability.Communication.WiFi.AP.Core

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.isHotspotDualBandSupported9+

isHotspotDualBandSupported(): boolean

Checks whether the hotspot supports dual band.

System API: This is a system API.

Required permissions: ohos.permission.GET_WIFI_INFO and ohos.permission.MANAGE_WIFI_HOTSPOT (available only to system applications)

System capability: SystemCapability.Communication.WiFi.AP.Core

Return value

Type Description
boolean Returns true if the feature is supported; returns false otherwise.

wifi.isHotspotActive9+

isHotspotActive(): boolean

Checks whether this hotspot is active.

System API: This is a system API.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.AP.Core

Return value

Type Description
boolean Returns true if the hotspot is active; returns false otherwise.

wifi.setHotspotConfig9+

setHotspotConfig(config: HotspotConfig): void

Sets hotspot configuration.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.GET_WIFI_CONFIG

System capability: SystemCapability.Communication.WiFi.AP.Core

Parameters

Name Type Mandatory Description
config HotspotConfig Yes Hotspot configuration to set.

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

HotspotConfig9+

Represents the hotspot configuration.

System API: This is a system API.

System capability: SystemCapability.Communication.WiFi.AP.Core

Name Type Readable Writable Description
ssid string Yes No SSID of the hotspot, in UTF-8 format.
securityType 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.

wifi.getHotspotConfig9+

getHotspotConfig(): HotspotConfig

obtains hotspot configuration.

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.AP.Core

Return value

Type Description
HotspotConfig Hotspot configuration obtained.

wifi.getStations9+

getStations():  Array<StationInfo>

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)

System capability: SystemCapability.Communication.WiFi.AP.Core

Return value

Type Description
 Array<StationInfo> Connected stations obtained.

StationInfo9+

Represents the station information.

System API: This is a system API.

System capability: SystemCapability.Communication.WiFi.AP.Core

Name Type Readable Writable Description
name string Yes No Device name.
macAddress string Yes No MAC address.
ipAddress string Yes No IP address.

wifi.getP2pLinkedInfo9+

getP2pLinkedInfo(): Promise<WifiP2pLinkedInfo>

Obtains P2P link information. This API uses a promise to return the result.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Return value

Type Description
Promise<WifiP2pLinkedInfo> Promise used to return the P2P link information obtained.

WifiP2pLinkedInfo9+

Represents the P2P link information.

System capability: SystemCapability.Communication.WiFi.P2P

Name Type Readable Writable Description
connectState P2pConnectState Yes No P2P connection state.
isGroupOwner boolean Yes No Whether the device is the group owner.
groupOwnerAddr string Yes No MAC address of the group.

P2pConnectState9+

Enumerates the P2P connection states.

System capability: SystemCapability.Communication.WiFi.P2P

Name Value Description
DISCONNECTED 0 Disconnected.
CONNECTED 1 Connected.

wifi.getP2pLinkedInfo9+

getP2pLinkedInfo(callback: AsyncCallback<WifiP2pLinkedInfo>): void

Obtains P2P link information. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
callback AsyncCallback<WifiP2pLinkedInfo> 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.getCurrentGroup9+

getCurrentGroup(): Promise<WifiP2pGroupInfo>

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

System capability: SystemCapability.Communication.WiFi.P2P

Return value

Type Description
Promise<WifiP2pGroupInfo> Promise used to return the P2P group information obtained.

wifi.getCurrentGroup9+

getCurrentGroup(callback: AsyncCallback<WifiP2pGroupInfo>): 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

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
callback AsyncCallback<WifiP2pGroupInfo> 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.

wifi.getP2pPeerDevices9+

getP2pPeerDevices(): Promise<WifiP2pDevice[]>

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

System capability: SystemCapability.Communication.WiFi.P2P

Return value

Type Description
Promise<WifiP2pDevice[]> Promise used to return the peer device list.

wifi.getP2pPeerDevices9+

getP2pPeerDevices(callback: AsyncCallback<WifiP2pDevice[]>): 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

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
callback AsyncCallback<WifiP2pDevice[]> 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.

WifiP2pDevice9+

Represents the P2P device information.

System capability: SystemCapability.Communication.WiFi.P2P

Name Type Readable Writable Description
deviceName string Yes No Device name.
deviceAddress string Yes No MAC address of the device.
primaryDeviceType string Yes No Type of the primary device.
deviceStatus P2pDeviceStatus Yes No Device status.
groupCapabilities number Yes No Group capabilities.

P2pDeviceStatus9+

Enumerates the P2P device states.

System capability: SystemCapability.Communication.WiFi.P2P

Name Value Description
CONNECTED 0 Connected.
INVITED 1 Invited.
FAILED 2 Failed.
AVAILABLE 3 Available.
UNAVAILABLE 4 Unavailable.

wifi.getP2pLocalDevice9+

getP2pLocalDevice(): Promise<WifiP2pDevice>

Obtains the local device information in the P2P connection. This API uses a promise to return the result.

Required permissions: ohos.permission.GET_WIFI_INFO and ohos.permission.GET_WIFI_CONFIG

System capability: SystemCapability.Communication.WiFi.P2P

Return value

Type Description
Promise<WifiP2pDevice> Promise used to return the local device information obtained.

wifi.getP2pLocalDevice9+

getP2pLocalDevice(callback: AsyncCallback<WifiP2pDevice>): void

Obtains the local device information in the P2P connection. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.GET_WIFI_INFO and ohos.permission.GET_WIFI_CONFIG

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
callback AsyncCallback<WifiP2pDevice> 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.

wifi.createGroup9+

createGroup(config: WifiP2PConfig): void

Creates a P2P group.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
config WifiP2PConfig Yes Group configuration.

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

WifiP2PConfig9+

Represents P2P group configuration.

System capability: SystemCapability.Communication.WiFi.P2P

Name Type Readable Writable Description
deviceAddress string Yes No Device address.
netId number Yes No Network ID. The value -1 indicates a temporary group, and -2 indicates a persistent group.
passphrase string Yes No Passphrase of the group.
groupName string Yes No Name of the group.
goBand GroupOwnerBand Yes No Frequency band of the group.

GroupOwnerBand9+

Enumerates the P2P group frequency bands.

System capability: SystemCapability.Communication.WiFi.P2P

Name Value Description
GO_BAND_AUTO 0 Auto.
GO_BAND_2GHZ 1 2 GHz.
GO_BAND_5GHZ 2 5 GHz.

wifi.removeGroup9+

removeGroup(): void

Removes this P2P group.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.p2pConnect9+

p2pConnect(config: WifiP2PConfig): void

Sets up a P2P connection.

Required permissions: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
config WifiP2PConfig Yes P2P group configuration.

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

Example

import wifi from '@ohos.wifi';

var recvP2pConnectionChangeFunc = result => {
    console.info("p2p connection change receive event: " + JSON.stringify(result));
    wifi.getP2pLinkedInfo((err, data) => {
        if (err) {
            console.error('failed to get getP2pLinkedInfo: ' + JSON.stringify(err));
            return;
        }
        console.info("get getP2pLinkedInfo: " + JSON.stringify(data));
    });
}
wifi.on("p2pConnectionChange", recvP2pConnectionChangeFunc);

var recvP2pDeviceChangeFunc = result => {
    console.info("p2p device change receive event: " + JSON.stringify(result));
}
wifi.on("p2pDeviceChange", recvP2pDeviceChangeFunc);

var recvP2pPeerDeviceChangeFunc = result => {
    console.info("p2p peer device change receive event: " + JSON.stringify(result));
    wifi.getP2pPeerDevices((err, data) => {
        if (err) {
            console.error('failed to get peer devices: ' + JSON.stringify(err));
            return;
        }
        console.info("get peer devices: " + JSON.stringify(data));
        var len = Object.keys(data).length;
        for (var i = 0; i < len; ++i) {
            if (data[i].deviceName === "my_test_device") {
                console.info("p2p connect to test device: " + data[i].deviceAddress);
                var config = {
                    "deviceAddress":data[i].deviceAddress,
                    "netId":-2,
                    "passphrase":"",
                    "groupName":"",
                    "goBand":0,
                }
                wifi.p2pConnect(config);
            }
        }
    });
}
wifi.on("p2pPeerDeviceChange", recvP2pPeerDeviceChangeFunc);

var recvP2pPersistentGroupChangeFunc = () => {
    console.info("p2p persistent group change receive event");

    wifi.getCurrentGroup((err, data) => {
        if (err) {
            console.error('failed to get current group: ' + JSON.stringify(err));
            return;
        }
        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.p2pCancelConnect9+

p2pCancelConnect(): void

Cancels this P2P connection.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.startDiscoverDevices9+

startDiscoverDevices(): void

Starts to discover devices.

Required permissions: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION

System capability: SystemCapability.Communication.WiFi.P2P

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.stopDiscoverDevices9+

stopDiscoverDevices(): void

Stops discovering devices.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.deletePersistentGroup9+

deletePersistentGroup(netId: number): void

Deletes a persistent group.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.MANAGE_WIFI_CONNECTION

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
netId number Yes ID of the group to delete.

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.getP2pGroups9+

getP2pGroups(): Promise<Array<WifiP2pGroupInfo>>

Obtains information about all P2P groups. This API uses a promise to return the result.

System API: This is a system API.

Required permissions: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION

System capability: SystemCapability.Communication.WiFi.P2P

Return value

Type Description
Promise< Array<WifiP2pGroupInfo> > Promise used to return the group information obtained.

WifiP2pGroupInfo9+

Represents the P2P group information.

System capability: SystemCapability.Communication.WiFi.P2P

Name Type Readable Writable Description
isP2pGo boolean Yes No Whether the device is the group owner.
ownerInfo WifiP2pDevice Yes No Device information of the group.
passphrase string Yes No Passphrase of the group.
interface string Yes No Interface name.
groupName string Yes No Group name.
networkId number Yes No Network ID.
frequency number Yes No Frequency of the group.
clientDevices WifiP2pDevice[] Yes No List of connected devices.
goIpAddress string Yes No IP address of the group.

wifi.getP2pGroups9+

getP2pGroups(callback: AsyncCallback<Array<WifiP2pGroupInfo>>): void

Obtains information about all P2P groups. This API uses an asynchronous callback to return the result.

System API: This is a system API.

Required permissions: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
callback AsyncCallback< Array<WifiP2pGroupInfo>> 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.

wifi.setDeviceName9+

setDeviceName(devName: string): void

Sets the device name.

System API: This is a system API.

Required permissions: ohos.permission.SET_WIFI_INFO and ohos.permission.MANAGE_WIFI_CONNECTION (available only to system applications)

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
devName string Yes Device name to set.

Return value

Type Description
boolean Returns true if the operation is successful; returns false otherwise.

wifi.on('wifiStateChange')9+

on(type: "wifiStateChange", callback: Callback<number>): void

Registers the WLAN state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is wifiStateChange.
callback Callback<number> Yes Callback invoked to return the WLAN state.

WLAN states

Value Description
0 Deactivated
1 Activated
2 Activating
3 Deactivating

wifi.off('wifiStateChange')9+

off(type: "wifiStateChange", callback?: Callback<number>): void

Unregisters the WLAN state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is wifiStateChange.
callback Callback<number> No Callback for the WLAN state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.

Example

import wifi from '@ohos.wifi';

var recvPowerNotifyFunc = result => {
    console.info("Receive power state change event: " + result);
}

// Register an event.
wifi.on("wifiStateChange", recvPowerNotifyFunc);

// Unregister an event.
wifi.off("wifiStateChange", recvPowerNotifyFunc);

wifi.on('wifiConnectionChange')7+

on(type: "wifiConnectionChange", callback: Callback<number>): void

Registers the WLAN connection state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is wifiConnectionChange.
callback Callback<number> Yes Callback invoked to return the WLAN connection state.

WLAN connection states

Value Description
0 Disconnected.
1 Connected.

wifi.off('wifiConnectionChange')9+

off(type: "wifiConnectionChange", callback?: Callback<number>): void

Unregisters the WLAN connection state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is wifiConnectionChange.
callback Callback<number> No Callback for the WLAN connection state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.

wifi.on('wifiScanStateChange')9+

on(type: "wifiScanStateChange", callback: Callback<number>): void

Registers the WLAN scan state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is wifiScanStateChange.
callback Callback<number> Yes Callback invoked to return the WLAN scan state.

WLAN scan states

Value Description
0 Scan failed.
1 Scan successful.

wifi.off('wifiScanStateChange')9+

off(type: "wifiScanStateChange", callback?: Callback<number>): void

Unregisters the WLAN scan state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is wifiScanStateChange.
callback Callback<number> No Callback for the WLAN scan state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.

wifi.on('wifiRssiChange')9+

on(type: "wifiRssiChange", callback: Callback<number>): void

Registers the RSSI change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is wifiRssiChange.
callback Callback<number> Yes Callback invoked to return the RSSI, in dBm.

wifi.off('wifiRssiChange')9+

off(type: "wifiRssiChange", callback?: Callback<number>): void

Unregisters the RSSI change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.STA

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is wifiRssiChange.
callback Callback<number> No Callback for the RSSI. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.

wifi.on('hotspotStateChange')9+

on(type: "hotspotStateChange", callback: Callback<number>): void

Registers the hotspot state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.AP.Core

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is hotspotStateChange.
callback Callback<number> Yes Callback invoked to return the hotspot state.

Hotspot states

Value Description
0 Deactivated
1 Activated
2 Activating
3 Deactivating

wifi.off('hotspotStateChange')9+

off(type: "hotspotStateChange", callback?: Callback<number>): void

Unregisters the hotspot state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.AP.Core

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is hotspotStateChange.
callback Callback<number> No Callback for the hotspot state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.

wifi.on('p2pStateChange')9+

on(type: "p2pStateChange", callback: Callback<number>): void

Registers the P2P state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pStateChange.
callback Callback<number> Yes Callback invoked to return the P2P state.

P2P states

Value Description
1 Available
2 Opening
3 Opened
4 Closing
5 Closed

wifi.off('p2pStateChange')9+

off(type: "p2pStateChange", callback?: Callback<number>): void

Unregisters the P2P state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pStateChange.
callback Callback<number> No Callback for the P2P state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.

wifi.on('p2pConnectionChange')9+

on(type: "p2pConnectionChange", callback: Callback<WifiP2pLinkedInfo>): void

Registers the P2P connection state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pConnectionChange.
callback Callback<WifiP2pLinkedInfo> Yes Callback invoked to return the P2P connection state.

wifi.off('p2pConnectionChange')9+

off(type: "p2pConnectionChange", callback?: Callback<WifiP2pLinkedInfo>): void

Unregisters the P2P connection state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pConnectionChange.
callback Callback<WifiP2pLinkedInfo> No Callback for the P2P connection state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.

wifi.on('p2pDeviceChange')9+

on(type: "p2pDeviceChange", callback: Callback<WifiP2pDevice>): void

Registers the P2P device state change events.

Required permissions: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pDeviceChange.
callback Callback<WifiP2pDevice> Yes Callback invoked to return the P2P device state.

wifi.off('p2pDeviceChange')9+

off(type: "p2pDeviceChange", callback?: Callback<WifiP2pDevice>): void

Unregisters the P2P device state change events.

Required permissions: ohos.permission.LOCATION

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pDeviceChange.
callback Callback<WifiP2pDevice> No Callback for the P2P device state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.

wifi.on('p2pPeerDeviceChange')9+

on(type: "p2pPeerDeviceChange", callback: Callback<WifiP2pDevice[]>): void

Registers the P2P peer device state change events.

Required permissions: ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pPeerDeviceChange.
callback Callback<WifiP2pDevice[]> Yes Callback invoked to return the P2P peer device state.

wifi.off('p2pPeerDeviceChange')9+

off(type: "p2pPeerDeviceChange", callback?: Callback<WifiP2pDevice[]>): void

Unregisters the P2P peer device state change events.

Required permissions: ohos.permission.LOCATION

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pPeerDeviceChange.
callback Callback<WifiP2pDevice[]> No Callback for the peer device state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.

wifi.on('p2pPersistentGroupChange')9+

on(type: "p2pPersistentGroupChange", callback: Callback<void>): void

Registers the P2P persistent group state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pPersistentGroupChange.
callback Callback<void> Yes Callback invoked to return the P2P persistent group state.

wifi.off('p2pPersistentGroupChange')9+

off(type: "p2pPersistentGroupChange", callback?: Callback<void>): void

Unregisters the P2P persistent group state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pPersistentGroupChange.
callback Callback<void> No Callback for the P2P persistent group state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.

wifi.on('p2pDiscoveryChange')9+

on(type: "p2pDiscoveryChange", callback: Callback<number>): void

Registers the P2P device discovery state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pDiscoveryChange.
callback Callback<number> Yes Callback invoked to return the P2P device discovery state.

P2P discovered device states

Value Description
0 Initial state.
1 Discovered.

wifi.off('p2pDiscoveryChange')9+

off(type: "p2pDiscoveryChange", callback?: Callback<number>): void

Unregisters the P2P device discovery state change events.

Required permissions: ohos.permission.GET_WIFI_INFO

System capability: SystemCapability.Communication.WiFi.P2P

Parameters

Name Type Mandatory Description
type string Yes Event type. The value is p2pDiscoveryChange.
callback Callback<number> No Callback for the P2P device discovery state. If this parameter is not specified, all callbacks associated with the specified event will be unregistered.