What is the best way to remove all subviews from you self.view?

Question

[self.view.subviews makeObjectsPerformSelector: @selector(removeFromSuperview)];

It's identical to your variant, but slightly shorter.

self.view.subviews.forEach({ $0.removeFromSuperview() })

Identical version in Swift.

Swift:

extension UIView {
    func removeAllSubviews() {
        for subview in subviews {
            subview.removeFromSuperview()
        }
    }
}

You can use like this

//adding an object to the view
view.addSubView(UIButton())

// you can remove any UIControls you have added with this code
view.subviews.forEach { (item) in
     item.removeFromSuperview()
}

view is the view that you want to remove everything from. you are just removing every subview by doing forEach