SwiftUI Essentials: Push-In & Push-Out Views, you must know this!
If you use SwiftUI without understanding the nature of the view, you will definitely run into a huge problem. In particular, Push-In & Push-Out is the most basic concept to know when creating layouts. Never rely on your senses and let’s use it properly.
Push-In Views
Text(“”) is the most common example. These views take as much space as it needs. You can think of it as Intrinsic Size in UIKit.
Push-In Views Examples
Push-Out Views
Push-outs views, on the contrary to Push-In Views, take as much space as possible. If you develop without knowing the push-out view concept, the pain is unimaginable. Why can’t I draw what I want?!
Circle, Rectangle, RoundedRectangle, Color, etc. belong to Push-out view.
Example 1) Taking the entire space
If you don’t specify its size, push-out views stretch as far as they can go.
Example 2) Push out views are divided equally.
If you have more than two push-out views, it’s divided equally.
Conclusion
- Push-In Views take as much space as they need
- Push-Out Views take as much space as possible
- Push-Out Views are divided equally when there are more than two
