It is that wrapper view that we must think of as the frame. In this part of the SwiftUI Layout System series I will cover everything you need to. Most of the time, when we apply a modifier on a view, a new view is created that is wrapped around the view being modified. The second approach would be using ZStack and add one color or multiple colors wrapped in. background modifier and pass Color which is a view in SwiftUI.
In many cases, we would like to change it to something else. Modifiers in SwiftUI do not actually modify views. SwiftUI views come with default background color - white on light mode and black in dark mode. Gauge view has been present in Apple watch faces for long time and. Since these two initializers allow us to specify a scale without modifying the renderer, we no longer have to perform the rendering operation within a main actor annotated extension. There’s a lot going on when we use modifiers (such as. Gauge is a newly introduced view in SwiftUI 4 and is used to show values within a range.
Also, this way has the added benefit of not adding spacing in your VStack which might happen (if you have spacing) if you added an HStack. The first initializer lets us provide the image renderer with a custom scale, while the second initializer lets us omit the scale altogether and use the screen resolution on iOS, macOS and tvOS. To make the VStack the width of the actual screen you can use when setting the frame instead of using a GeometryReader, but I imagine you likely wanted the width of the parent view.
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