How to add a static bottom view in swift - ios

Question

I want to add a staticUIView in the bottom of my UIViewController. This is a story board app written in swift. in my viewDidLoad() I did something like this.
self.vWindow = UIApplication.sharedApplication().keyWindow
let mainBound = CGRectMake(0, self.view.frame.size.height-135, self.view.frame.size.width, 135)//CGSizeMake(UIScreen.mainScreen().bounds.size.width, 135.0)
self.vwVideo = UIView.init(frame: mainBound)
self.vwVideo.backgroundColor = UIColor.blackColor()
self.vWindow.addSubview(self.vwVideo)
But this adds nothing to my viewController. Why is that? Please help me.
Thanks

Answer 1

let vWindow = UIApplication.sharedApplication().keyWindow
let mainBound = CGRectMake(0, self.view.frame.size.height-135, self.view.frame.size.width, 135)//CGSizeMake(UIScreen.mainScreen().bounds.size.width, 135.0)
self.vwVideo = UIView.init(frame: mainBound)
self.vwVideo.backgroundColor = UIColor.blackColor()
vWindow!.addSubview(self.vwVideo)
Use this code it will add your view in window at the bottom side.

Answer 2

You shouldn't be attaching views directly to the window, add it to the ViewController.
try something like this:
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// without autolayout
let header = UIView(frame: CGRectMake(0,0, view.bounds.size.width, 50))
header.backgroundColor = UIColor.redColor()
view.addSubview(header)
// with auto layout
let footer = UIView()
footer.backgroundColor = UIColor.blackColor()
footer.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(footer)
NSLayoutConstraint(item: footer, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 50).active = true
NSLayoutConstraint(item: footer, attribute: .Leading, relatedBy: .Equal, toItem: view, attribute: .Leading, multiplier: 1.0, constant: 0).active = true
NSLayoutConstraint(item: footer, attribute: .Trailing, relatedBy: .Equal, toItem: view, attribute: .Trailing, multiplier: 1.0, constant: 0).active = true
NSLayoutConstraint(item: footer, attribute: .Bottom, relatedBy: .Equal, toItem: view, attribute: .Bottom, multiplier: 1.0, constant: 0).active = true
}
Here you have two ways of attaching the view, One with autolayout and one with a fixed size and position.
If you want to add complex views, you may be better creating a nib.. .a view in storyboard which you can load when required.
If you need this view to appear in many places you could look at instead attaching it to a parent view, maybe something like a navigation controller or paging view controller, but you would need to manage when it should and shouldn't be displayed.

Answer 3

you are adding your created view to window i think. You need to that view to your current content view something like,
self.view.addSubView(self.vwVideo)
And you not need to take window and bounds of it, you can simply achieve it something like,
let bottomView: UIView = UIView(frame: CGRectMake(0, self.view.frame.size.height - 135, self.view.frame.size.width, 135))
self.view!.addSubview(bottomView)
Hope this will help :)

Answer 4

Its better to do it using AutoLayout.
Add your view to superview
view.addSubview(footerView)
then disable auto conversion of masks to constraints using
footerView.translatesAutoresizingMaskIntoConstraints = false
then add the constraint using following lines of code
view.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[view]-0-|", options: [], metrics: nil, views: ["view":footerView]))
view.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:[view(135)]-0-|", options: [], metrics: nil, views: ["view":footerView]))