Autolayout
Autolayout is an Apple-developed graphical user interface (GUI) framework for iOS, macOS, tvOS, and watchOS that allows developers to define the layout of their application's user interface in a simple, declarative way. Autolayout was introduced with iOS 6 and has since become the standard for defining the layout of user interfaces in iOS apps.
What is Autolayout?
Autolayout is a constraint-based layout system that allows developers to define the layout of their user interface in a simple, declarative way. Autolayout works by allowing developers to specify constraints between the various elements of their user interface, such as the size of a button or the position of a label. Autolayout then automatically calculates the layout of the user interface based on these constraints.
One of the main benefits of using Autolayout is that it makes it easy to create complex user interfaces that are both responsive and flexible. Autolayout's constraint-based approach allows developers to specify how the various elements of their user interface should behave under different circumstances, such as when the device is rotated or when the user changes the font size. This ensures that the user interface always looks its best, regardless of the context.