TableHeaderViewWithAutoLayout

Example of how to use AutoLayout with table header view.

It comes with UITableView's extension that helps you do this easily.

There are two examples:

1. using UITableView (with header view Xib)
2. using UITableViewController (all in storyboard).

Requirements: Xcode 8, Swift 3, iOS 9+ (use anchors)

More detail here

How to use

1. In viewDidLoad()

// 1. Setup AutoLayout (do this instead of setting constraints via storyboard)
self.tableView.setTableHeaderView(headerView: self.tableView.tableHeaderView!)

// 2. Initial layout update
self.tableView.updateHeaderViewFrame()

2. (If you want to handle device rotation) In viewWillTransition(to size: with coordinator:)

override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
    super.viewWillTransition(to: size, with: coordinator)

    // 3. Update layout every time device is rotated.
    DispatchQueue.main.async {
        self.tableView.updateHeaderViewFrame()
    }
}