How to make ScrollView scroll to the end?

Question

iOS

when I open the time of work, then my scroll does not reach the end

@objc func showDetailWork(sender: UITapGestureRecognizer){
if selectedPartnerView.detailWorkView.isHidden{
selectedPartnerView.detailWorkView.isHidden = false
selectedPartnerView.moreLabel.isHidden = true
selectedPartnerView.firstWorkView.isHidden = true
selectedPartnerView.workViewConstraint.constant = 218
selectedPartnerView.moreView.isHidden = true
}else{
selectedPartnerView.detailWorkView.isHidden = true
selectedPartnerView.moreLabel.isHidden = false
selectedPartnerView.firstWorkView.isHidden = false
selectedPartnerView.workViewConstraint.constant = 70
selectedPartnerView.moreView.isHidden = false
}
}

Answer 1

After opening the work time, you need to recalculate the contentSize of the UIScrollView. The code you provided just hides the views.