getUserInfo method
获取当前登录用户信息
@param userId @param callback
Implementation
@override
void getUserInfo({required SyCallBack<SyContact> callback}) {
SyImSdkSessionPlatform.instance.getUserInfo(
callback: SyCallBack(onSuccess: (syContact) {
callback.onSuccess.call(syContact);
loginChatUser = syContact;
}, onFail: (code, err) {
callback.onFail.call(code, err);
}));
}