How to scroll to the exact end of the UITableView?

Question

I have a UITableView that is populated with cells with dynamic height. I would like the table to scroll to the bottom when the view controller is pushed from vi

Answer 1

I would use more generic approach to this:

Swift4

extension UITableView {

    func scrollToBottom(){

        DispatchQueue.main.async {
            let indexPath = IndexPath(
                row: self.numberOfRows(inSection:  self.numberOfSections-1) - 1, 
                section: self.numberOfSections - 1)
            if hasRowAtIndexPath(indexPath) {
                self.scrollToRow(at: indexPath, at: .bottom, animated: true)
            }
        }
    }

    func scrollToTop() {

        DispatchQueue.main.async {
            let indexPath = IndexPath(row: 0, section: 0)
            if hasRowAtIndexPath(indexPath) {
                self.scrollToRow(at: indexPath, at: .top, animated: false)
           }
        }
    }

    func hasRowAtIndexPath(indexPath: IndexPath) -> Bool {
        return indexPath.section < self.numberOfSections && indexPath.row < self.numberOfRows(inSection: indexPath.section)
    }
}