markAllConversationsAsRead method
将所有对话标记为已读.
Implementation
Future<bool?> markAllConversationsAsRead() async {
Map result = await _channel.invokeMethod(EMSDKMethod.markAllChatMsgAsRead);
EMError.hasErrorFromResult(result);
return result.boolValue(EMSDKMethod.markAllChatMsgAsRead);
}