Resolving Multiple Bottom Sheets Content Loading Issues in SwiftUI

Описание: Learn how to fix the issue of empty views in multiple bottom sheets in SwiftUI with two effective methods.
---
This video is based on the question https://stackoverflow.com/q/65416673/ asked by the user 'Heldan' ( https://stackoverflow.com/u/14866922/ ) and on the answer https://stackoverflow.com/a/65416999/ provided by the user 'nicksarno' ( https://stackoverflow.com/u/11279971/ ) 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: Multiple Bottom sheets - the content doesn't load SwiftUI

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.
---
Resolving Multiple Bottom Sheets Content Loading Issues in SwiftUI

SwiftUI offers a sleek approach to presenting views, but developers can sometimes encounter challenges, particularly with multiple bottom sheets. If you've ever opened a bottom sheet only to find that it doesn't load its content correctly, you're not alone. Let’s explore this common issue and understand how to resolve it effectively.

The Problem: Empty Bottom Sheets

When using SwiftUI’s .sheet modifier, you might find that upon presenting your bottom sheets, the desired content is not visible until you switch back and forth between the sheets. This happens because the initial state of the action triggering the sheet might be nil, leading to an empty view being presented by default. Here's a recap of what your code looks like:

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

In the snippet above, if self.action is nil, SwiftUI fails to present a valid view, resulting in an empty output. Fortunately, there are straightforward solutions to this problem.

Two Effective Methods to Fix Bottom Sheet Content Issues

Method 1: Use a Single View with Dynamic Content

Instead of utilizing the conditional statements to switch views, this method advocates for presenting a static view, then modifying its content based on the state of your actions. Here’s how you can implement it:

Create a New View: Introduce a new view called SecondaryView that will serve as the single point for your bottom sheet content.

Bind the Action: Use a @ Binding variable connected to your action to dynamically change the displayed content.

Here's what the modified code looks like:

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

This approach ensures that the SecondaryView is always presented, so it avoids the empty view issue.

Method 2: Create Separate View Components for Each Button

An alternate approach involves creating dedicated views for each button, allowing you to assign separate .sheet modifiers directly to them. This way, each button operates independently without the need for shared states to determine which sheet to show.

For instance:

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

Conclusion

Both methods provide a clear path to resolving the issue of empty bottom sheets in SwiftUI. Choosing between them depends on personal preference and the specific needs of your application. Method 1 maintains a simpler state management structure while Method 2 enhances modularity and clarity by creating individual button views.

By implementing either of these solutions, you can ensure your bottom sheets function correctly, enriching the user experience of your SwiftUI app.