openharmony 鸿蒙 capi-netconnection-netconn-netconncallback

2026-08-25 浏览 (1)

NetConn_NetConnCallback

typedef struct NetConn_NetConnCallback {...} NetConn_NetConnCallback

Overview

Defines a struct for the network status listener callback collection. All callback events must be registered; those not requiring attention can be set to empty.

Since: 12

Related module: NetConnection

Header file: net_connection_type.h

Summary

Member Variables

NameDescription
OH_NetConn_NetworkAvailable onNetworkAvailableCallback invoked when the network is available.
OH_NetConn_NetCapabilitiesChange onNetCapabilitiesChangeCallback invoked when the network capabilities change.
OH_NetConn_NetConnectionPropertiesChange onConnetionPropertiesCallback invoked when network connection properties change.
OH_NetConn_NetLost onNetLostCallback invoked when the network is disconnected.
OH_NetConn_NetUnavailable onNetUnavailableCallback invoked when the network is unavailable. This callback is triggered when the network is not activated within the specified timeout interval. If the timeout interval is not set, this callback is not triggered.
OH_NetConn_NetBlockStatusChange onNetBlockStatusChangeCallback invoked when the network blocking status changes.

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