Returns the optimal size of the view based on its current constraints. iOS 6.0+ iPadOS 6.0+ Mac Catalyst 13.1+
Read moreWhat is Nslayoutconstraint?
The relationship between two user interface objects that must be satisfied by the constraint-based layout system .
Read moreWhat is a stack view?
Stack views are a powerful tool for quickly and easily designing your user interfaces . Their attributes allow a high degree of control over how they lay out their arranged views. You can augment these settings with additional, custom constraints; however, this increases the layout’s complexity.21 Mar 2016
Read moreWhat is stack view in iOS?
Overview. Stack views let you leverage the power of Auto Layout , creating user interfaces that can dynamically adapt to the device’s orientation, screen size, and any changes in the available space. The stack view manages the layout of all the views in its arrangedSubviews property.
Read moreWhat are three of the primary responsibilities of a UIView object?
iOS Fundamentals — UIView: Three Major Responsibilities
Read moreWhat is UI responder?
An abstract interface for responding to and handling events .
Read moreWhat is a UIView iOS?
The UIView class is a concrete class that you can instantiate and use to display a fixed background color . You can also subclass it to draw more sophisticated content.
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