How do I adjust my popover to the size of the content in my tableview in swift?

Question

I\'m using popoverPresentationController to show my popover. The UITableViewController used to show as popover is created programmatically and will usu

Answer 1

In your UITableViewController's viewDidLoad() you can add an observer:

self.tableView.addObserver(self, forKeyPath: "contentSize", options: .new, context: nil)

Then add this method:

override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
    self.preferredContentSize = tableView.contentSize
}

Lastly, in viewDidDisappear(), make sure you remove the observer:

tableView.removeObserver(self, forKeyPath: "contentSize")

This way the popover will automatically adjust size to fit the content, whenever it is loaded, or changed.