onChatThreadEvent method Null safety

void onChatThreadEvent(
  1. ChatMultiDevicesEvent event,
  2. String chatThreadId,
  3. List<String> usernames
)

The multi-device event callback of thread.

Param event The event type.

Param chatThreadId subregion id.

Param usernames The array of usernames.

Implementation

void onChatThreadEvent(
  ChatMultiDevicesEvent event,
  String chatThreadId,
  List<String> usernames,
);