create a view which contains a view that fill the entire view in swift

You can create a view that fills its superview by using Auto Layout and constraints.

1. Create a new UIView and add it to your existing view as a subview.

main.swift
let myView = UIView()
view.addSubview(myView)
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2. Set the translatesAutoresizingMaskIntoConstraints property of your view to false to enable Auto Layout.

main.swift
myView.translatesAutoresizingMaskIntoConstraints = false
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3. Add constraints to your view to pin it to the top, bottom, left, and right of its superview.

main.swift
NSLayoutConstraint.activate([
    myView.topAnchor.constraint(equalTo: view.topAnchor),
    myView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
    myView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
    myView.trailingAnchor.constraint(equalTo: view.trailingAnchor)
])
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Your view will now fill the entire view of its superview. When you change the size of the superview, the subview will automatically adjust to fill the remaining space.