How to dynamically resize TableView Cell Height and TableView Height - ios

Question

I have a tableview with two cells, The content of the tableview cell will change and will be dynamic, so I want to dynamically resize the tableview cell and according to the tableview cell height I want to calculate the height of tableview.
My tableview is taking an extra space while rendering the cells.
Can anyone help me with the approach on how to set the tableview height according to the tableview cell height
class Recent_WH_acitivityCell: UITableViewCell {
#IBOutlet weak var wh_activity_tableView: UITableView!
#IBOutlet weak var wh_activity_table_ht: NSLayoutConstraint!
let cells = 2
var maxHeight: CGFloat = UIScreen.main.bounds.size.height
override func awakeFromNib() {
super.awakeFromNib()
wh_activity_tableView.estimatedRowHeight = 100
wh_activity_tableView.rowHeight = UITableViewAutomaticDimension
}
func setData()
{
wh_activity_tableView.reloadData()
self.layoutIfNeeded()
}
override var intrinsicContentSize: CGSize
{
let height = min(self.contentView.frame.height, maxHeight)
return CGSize(width: self.contentView.frame.width, height: height)
}
override func layoutSubviews() {
super.layoutSubviews()
self.contentView.frame = UIEdgeInsetsInsetRect(contentView.frame, UIEdgeInsets(top: 0, left: 0, bottom: 15, right: 0))
}}
extension Recent_WH_acitivityCell : UITableViewDataSource{
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 2
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "recent_wh_data_cell", for: indexPath) as! Recent_WH_Data_cell
return cell
}
}
Here is the Screenshot
Please look into the highlighted part.

Answer 1

You can implement a self sizing UITableView like this:
class SelfSizingTableView: UITableView {
override var intrinsicContentSize: CGSize {
return CGSize(width: UIView.noIntrinsicMetric, height: contentSize.height)
}
override var contentSize: CGSize {
didSet {
invalidateIntrinsicContentSize()
}
}
}
Make sure to set up the cell's constraints correctly (full constraints from the top to the bottom of the cell) and enable self-sizing cells in your view controller like this:
#IBOutlet weak var tableView: UITableView! {
didSet {
tableView.estimatedRowHeight = 44
tableView.rowHeight = UITableView.automaticDimension
}
}

Answer 2

Assign constraint align top and bottom to parent view. and then use one call as header cell like "Sell your stock" and use cell as normal cell under section, So you can get proper output as your requirement.
Also assign height constraint and IBOutlet it and calculate number of cell * cell height + header height = tableview height constraint
And then set accordingly UIScrollview contentsize.
For example one cell height is 80 and number of cell 5 then scrollview content size is = other item height + header height + (80 * 5)
tableview height constraint is = header height + (80 * 5)