SwiftUI in Real Apps

We've all seen the tutorials. A developer on YouTube builds a beautiful weather app in ten minutes. It all looks easy. Drag a few views around, drop in some \@State and it works. You decide to try it when your boss asks for three new features. A few minutes of working on it or hours later, it keeps crashing. Building a prototype is easy. Building a SwiftUI app that survives a year of growth and changing deadlines is not. Here is a guide on writing a SwiftUI code that lasts. Why Codes Don't Survive Before we get to how to write code that lasts, let's get into what a lot of us get wrong. A common mistake is the 500-line file that tries to do everything. Buttons, text, logic and styling in one property. It will work well at first until you need to change the login logic and you are digging through 400 lines of UI code to find one function. Karan Pal, an iOS Architect, frames it better. "You end up building UserListItem, ProductListItem and other 10 nearly identical component