How to Call a View with a Specific Size in SwiftUI

Discover how to adjust the size of views in SwiftUI by defining their dimensions individually in different contexts, such as lists and detail views.
---
This video is based on the question https://stackoverflow.com/q/69995633/ asked by the user 'mrcreate' ( https://stackoverflow.com/u/14788990/ ) and on the answer https://stackoverflow.com/a/69996297/ provided by the user 'Hikosei' ( https://stackoverflow.com/u/2873694/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How to call a view with a specific size?

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Call a View with a Specific Size in SwiftUI

In the world of SwiftUI development, managing the size of views is a common challenge, particularly when you want to display the same view in different sizes depending on the context. This guide delves into a specific scenario where a developer is looking to adjust the size of a CircleView component — making it smaller in a list view, while ensuring it takes up the full width in a detail view.

The Problem

Imagine you’ve created a beautiful CircleView that displays a circle with some text inside. You might want to use this view in multiple places, but the default size defined in your view will not always fit your needs. You want it to be smaller when listed in a navigation link, but occupy a larger space when in the detail view.

The current implementation of your CircleView defines its size directly inside the view, which prevents you from adjusting its dimensions when you call it from other views.

If you look at the provided SwiftUI code, you can see that CircleView defines a hardcoded frame:

[[See Video to Reveal this Text or Code Snippet]]

The Solution

To maintain flexibility in your view's size, you need to remove the set frame from the CircleView definition and instead apply the frame whenever you use it. By doing so, you can specify the desired dimensions directly in the calling view, which grants you greater control over the layout.

Step-by-Step Modification

Modify the CircleView:

Remove the fixed frame size from the CircleView definition.

Here’s how your updated CircleView should look:

[[See Video to Reveal this Text or Code Snippet]]

Adjust ContentView:

When you invoke CircleView in ContentView, you can now set its frame to be smaller, like this:

[[See Video to Reveal this Text or Code Snippet]]

Update Details View:

In the DetailsView, you can let it use the full dimensions or define some padding:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following these steps, you gain the flexibility to determine the size of your views based on the context in which they are used. This approach enhances the adaptability of your SwiftUI components and leads to a more dynamic user interface.

Feel free to apply this technique in your own projects to make SwiftUI views that are more responsive and user-friendly. Happy coding!