The floating close button can be put in an overlay modifier which put the element above the content. Please read the article SwiftUI Layout Alignment to learn more about the alignment mechanism of ZStack, overlay, and background. When you have too many containers, you will likely create a pyramid of doom, which is not ideal for readability and maintenance.īy using a frame modifier with maxWidth and maxHeight set to infinity, and alignment set to topTrailing, you get the same result.This creates requires a VStack and an HStack, plus two Spacer(). If we wanted the circle to align with either the top or bottom squares in the VStack we could change the HStack alignment to.Let's take a common example of a floating close button that we want to align to the far top right of the screen.It is commonly seen when checking for null pointers or handling callbacks. Mark van Wijnen 205 Followers macOS/iPadOS/iOS/WatchOS/realityOS developer and SwiftUI enthousiast. The leading alignment on the VStack overrides the stacks default center. ![]() ![]() Refresh the page, check Medium ’s site status, or find something interesting to read. This tutorial walks through using stacks to align content in rows and columns. To navigate the symbols, press Up Arrow, Down Arrow. How to Use Alignments in SwiftUI (The Basics) Better Programming Write Sign up Sign In 500 Apologies, but something went wrong on our end. ![]() An alternative to stacks and spacer is to use frame max width and alignment to avoid the pyramid of doomĭefinition : In computer programming, the pyramid of doom is a common problem that arises when a program uses many levels of nested indentation to control access to a function. You can use 3 kinds of stacks with SwiftUI: VStack, a vertical stack, which shows views in a top-to-bottom list HStack, a horizontal stack, which shows views in a left-to-right list ZStack, a depth-based stack, which shows views in a back-to-front list Here’s a visual example: You can compare stacks in SwiftUI with UIStackView in UIKit. The ZStack uses an Alignment to set the x- and y-axis coordinates of each subview, Learning SwiftUI.
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