Enter SwiftUI, which is Apple’s newest UI framework. SwiftUI is available across all of Apple’s menagerie of devices: phones, tablets, TV boxes, watches, and computers. It allows developers to create UI elements with an expressive, simple declarative syntax. Crucially, this can be done without writing mountains of code.
— Jack Lawrence (@_jackhl) June 3, 2019 Demonstrating the framework on stage, Josh Shaffer, an Apple software developer, showed how a basic ‘Hello World’ iPhone app can be created with just six lines of code (and two of those were closing curly braces). Alongside SwiftUI is a brand new Xcode interactive development experience. Just like Swift Playgrounds, developers can see changes reflected in real-time, as the IDE automatically refreshes. It also comes with a Google Chrome-style inspect tool, allowing developers to select specific elements from within the emulator and modify them through a drop-down graphical interface. Any changes made within the emulator are automatically reflected within Xcode’s text editor. The framework also allows developers to drag-and-drop elements into their app. Xcode will automatically generate code for these elements.
— Ken Yeung (@thekenyeung) June 3, 2019 Given the focus of SwiftUI is centered on maximizing developer productivity, it’s no surprise that the framework comes with support for several OS-level features baked-in, like the “dark mode” that’s now available on iOS, or support for right-to-left languages like Arabic and Hebrew.
