What methods can be used to manage layout before its dimensions are updated in the viewWillLayoutSubviews method?

The viewWillLayoutSubviews method is called before the layout and sizing of subviews are updated in iOS. In this method, you can manage the layout to prepare or modify the positioning of elements before the system applies the new sizes.

Main ways to manage layout in viewWillLayoutSubviews include:

• Manually changing the frames of subviews if Auto Layout is not used.
• Updating constraints, for example, by changing their constants.
• Calling methods that recalculate the size or position of elements.

Example of changing a constraint:

override func viewWillLayoutSubviews() {
    super.viewWillLayoutSubviews()
    myConstraint.constant = newValue
}

It is important not to call layoutIfNeeded within this method to avoid recursive calls. This method is suitable for preparing the final layout of elements before display.