How to programatically fix a view to a tab bar in Swift? - ios

Question

I have a tableView inside a navigationController inside a tabBarController.
I want to programatically fix a view above the tabbar like this:
.
I have experimented with adding constraints without success, also because I don't know whether to use self.view or self.bottomLayoutGuide of self.tableView or self.navigationController or self.tabBarController.tabBar or ... any suggestions?

Answer 1

Try this:
button = UIButton(frame: CGRect(x: 0, y: self.view.frame.height - 99, width: self.view.frame.width, height: 50))
button.backgroundColor = UIColor(red: 0, green: 88/255, blue: 171/255, alpha: 1)
button.tintColor = .white
button.titleLabel?.font = UIFont(name: "Helvetica", size: 20)
button.setTitle("YOUR TEXT", for: .normal)
button.addTarget(self, action: #selector(yourAction), for: .touchUpInside)
self.navigationController?.view.addSubview(button)
In my example, it is a UIButton but it can be a UIView too
Same example with UIView
let view = UIView(frame: CGRect(x: 0, y: self.view.frame.height - 99, width: self.view.frame.width, height: 50))
view.backgroundColor = UIColor(red: 0, green: 88/255, blue: 171/255, alpha: 1)
self.navigationController?.view.addSubview(view)

Answer 2

self.automaticallyAdjustsScrollViewInsets = NO;
then you will see the tableviewcell covered by navigationbar and
if you want navigationbar to be full transparency
self.navigationController.navigationBar.backgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault;
self.navigationController.navigationBar.shadowImage:[UIImage new];

Answer 3

Try this Swift 3.0
Bottom view code here.
let bottomview = UIView(frame: CGRect(x: 0, y: self.view.frame.height-63,width:self.view.frame.width, height: 80))
bottomview.backgroundColor = UIColor.red
self.view.addSubview(bottomview)
Table view code here...
let table: UITableViewController = MyTableViewController()
let tableView: UITableView = UITableView()
tableView.frame = CGRect(x: 0, y:self.navigationController.navigationBar.frame.size.height, width: self.view.frame.width, height: 500)
tableView.dataSource = table
tableView.delegate = table
self.view.addSubview(tableView)