onRoomStateChanged property

(void Function(String roomID, ZegoRoomStateChangedReason reason, int errorCode, Map<String, dynamic> extendedData)?) onRoomStateChanged
read / write

Notification of the room connection state changes, including specific reasons for state change.

Available since: 2.18.0 Description: This callback is triggered when the connection status of the room changes, and the reason for the change is notified.For versions 2.18.0 and above, it is recommended to use the onRoomStateChanged callback instead of the onRoomStateUpdate callback to monitor room state changes. Use cases: Developers can use this callback to determine the status of the current user in the room. When to trigger: Users will receive this notification when they call room functions (refer to Related APIs). 2. This notification may also be received when the user device's network conditions change (SDK will automatically log in to the room again when the connection is disconnected, refer to https://doc-zh.zego.im/faq/reconnect ). Restrictions: None. Caution: If the connection is being requested for a long time, the general probability is that the user's network is unstable. Related APIs: loginRoom, logoutRoom, switchRoom

  • roomID Room ID, a string of up to 128 bytes in length.
  • reason Room state change reason.
  • errorCode Error code, please refer to the error codes document https://doc-en.zego.im/en/5548.html for details.
  • extendedData Extended Information with state updates. When the room login is successful, the key "room_session_id" can be used to obtain the unique RoomSessionID of each audio and video communication, which identifies the continuous communication from the first user in the room to the end of the audio and video communication. It can be used in scenarios such as call quality scoring and call problem diagnosis.

Implementation

static void Function(String roomID, ZegoRoomStateChangedReason reason,
    int errorCode, Map<String, dynamic> extendedData)? onRoomStateChanged;