
Design canvas graphically builds UI views using the library of controls and modifyers.SwiftUI uses declarative Swift code that clearly describes your interface.

SwiftUI and Interface Builder make it easy to design your interface

Xcode includes the Xcode IDE, Swift and C/C++/Objective-C compilers, Instruments analysis tool, simulators, the latest SDKs, and hundreds of powerful features: The Xcode IDE combined with the Swift programming language make developing apps easy and fun. Xcode provides developers a unified workflow for user interface design, coding, testing, and debugging. Xcode includes everything developers need to create great applications for Mac, iPhone, iPad, Apple TV, and Apple Watch.
