startCallback method Null safety
Start contact and group, chatroom callback.
Reference:
Call this method when you ui is ready, then will receive EMChatRoomManagerListener
, EMContactManagerListener
, EMGroupManagerListener
callback.
Implementation
Future<void> startCallback() async {
Map result = await _channel.invokeMethod(ChatMethodKeys.startCallback);
try {
EMError.hasErrorFromResult(result);
} on EMError catch (e) {
throw e;
}
}