Calculate the table's contentSize.height with custom cells of different types iphone

Question

In my application , the tableview is having different types of custom cells with different heights. I want to put a view below this tableView, for which I need to calculate the table contentView height, how can I do it?

Earlier I used to do it like: (noOfRows * cell_height), but that was for static heights.

Thanx in advance.

Answer 1

UITableView is a subclass of UIScrollView, therefore you can use the instance method contentSize on your tableview:

yourtableView.contentSize.height

Should give you the height of your tableview content view

Answer 2

This is an old question, but, today I've solved my problem with this

  func viewDidLoad() { 
      super.viewDidLoad()

      tableView.rowHeight = UITableViewAutomaticDimension
      tableView.estimatedRowHeight = 44 //  >= 2
    }     

  func getTableViewHeight() -> CGFloat{ 
      tableView.reloadData()
      tableView.layoutIfNeeded()

      return tableView.contentSize.height + tableView.contentInset.bottom + tableView.contentInset.top
    }

Answer 3

i have calc height in viewDidLayoutSubviews() for content view controller. Work for me (table view automatic cell dimensions);

override func viewDidLayoutSubviews() {
    super.viewDidLayoutSubviews();
    let height = table.contentSize.height+table.contentInset.bottom+table.contentInset.top
    preferredContentSize = CGSize(width: 305, height: height);
}

Answer 4

The header and footer of the section are not considered in the height of the table, consider this

CGSize sz = self.table.contentSize;
sz.height += self.table.contentInset.bottom +
             self.table.contentInset.top + 
             self.table.numberOfSections * self.table.sectionHeaderHeight;