public async void OnOKClicked()
{
string nickname = nicknameInputField.text;
if (!LCUtils.IsValidString(nickname))
{
LCUtils.ShowToast(this, "Please input nickname");
return;
}
try {
LCUser user = await LCUser.GetCurrent();
user.SetNickname(nickname);
await user.Save();
SendMessageUpwards("BackToLCMainMenu", SendMessageOptions.RequireReceiver);
} catch (LCException e) {
LCUtils.LogException(e);
LCUtils.ShowToast(this, e);
}
}