How do I change UIView Size?

Question

I have trouble with modifying my UIView height at launch.

I have to UIView and I want one to be screen size * 70 and the other to fill the gap.

here is what

Answer 1

For a progress bar kind of thing, in Swift 4

I follow these steps:

1. I create a UIView outlet : @IBOutlet var progressBar: UIView!
2. Then a property to increase its width value after a user action var progressBarWidth: Int = your value
3. Then for the increase/decrease of the progress progressBar.frame.size.width = CGFloat(progressBarWidth)
4. And finally in the IBACtion method I add progressBarWidth += your value for auto increase the width every time user touches a button.