#Swiftui vstack top alignment code#

Specifying an alignment for a background is done the exact same way, by passing an alignment argument when using the background modifier.ДЄn overlay or background also inherits all of its parentвЂ™s environment values.

For views that are fully resizable (like our above LinearGradient), the alignment doesnвЂ™t matter (since those views will be resized to fit their parent view anyway), but for smaller views, specifying an alignment lets us move a view to any of its parentвЂ™s corners.ДЇor example, hereвЂ™s how we could add a star image overlay to the top-trailing corner of our ContentView: SwiftUI also supports adding overlays to views as well, which essentially act as the inverse of backgrounds - in that theyвЂ™re rendered on top of their parent views (with the same sizing behaviors as we explored above).Д«oth overlays and backgrounds also support alignment customization, which lets us decide how such a view should be placed within its parentвЂ™s coordinate system. That way, the size of a given background will always perfectly match the size of its parent view. You can put another Spacer () after the bottom Text s to push them up. This will push the other text to the bottom though.

Of course, the simplest way to avoid drawing a background outside of the bounds of its parent view is to simply let the SwiftUI layout system automatically determine the size of each background. 23 You can put a Spacer () between your HStack and VStack. HereвЂ™s how we could use that modifier to instead apply our LinearGradient background directly to our Text-based view, which makes that background take on the exact same size as our text itself (including its padding): However, sometimes we might not want a given background to stretch out to fill all available space, and while we could address that by applying various sizing modifiers to our background view, SwiftUI ships with a built-in tool that automatically resizes a given viewвЂ™s background to perfectly fit its parent - the background modifier. The reason that the above ContentView is rendered across all of the available screen space is because a LinearGradient will always occupy as much space as possible by default, and since a any stackвЂ™s size defaults to the total size of its children, that leads to our ZStack being resized to occupy that same full-screen space. When you initialize them with default parameters, stack views center align their content and insert a small amount of spacing between each contained view. HStack positions views in a horizontal line, VStack positions them in a vertical line, and ZStack overlays views on top of one another.

#Swiftui vstack top alignment code#

Tip: You can use the above code sampleвЂ™s PREVIEW button to see what itвЂ™ll look like when rendered. Individually, HStack, VStack, and ZStack are simple views.