deleteContact method
删除联系人 username
keepConversation
true 保留会话和消息 false 不保留, 默认为false
Implementation
Future<String?> deleteContact(
String username, [
bool keepConversation = false,
]) async {
Map req = {'username': username, 'keepConversation': keepConversation};
Map result = await _channel.invokeMethod(EMSDKMethod.deleteContact, req);
EMError.hasErrorFromResult(result);
return result[EMSDKMethod.deleteContact];
}