How to Create a Button Toggle in SwiftUI for Conditional Text Display

Discover how to implement a `button toggle` in SwiftUI that allows for conditional text display for each button individually. Learn to keep states separate to enhance user experience!
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This video is based on the question https://stackoverflow.com/q/63546224/ asked by the user 'Cromen' ( https://stackoverflow.com/u/10705305/ ) and on the answer https://stackoverflow.com/a/63546299/ provided by the user 'Asperi' ( https://stackoverflow.com/u/12299030/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Create a Button Toggle in SwiftUI for Conditional Text Display

When developing user interfaces in SwiftUI, you may find the need to create buttons that showcase extra information only when clicked. In this guide, we will address a common problem where tapping a button causes additional text to appear, but you want this text to only appear with the specific button that was clicked. Let’s dive into how to effectively achieve this.

The Problem

Imagine you've created a series of buttons, and each button has associated extra text that you want to show or hide upon interaction. Initially, you might implement something like this:

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

In this setup, when you click any button, it toggles a shared variable that controls the visibility of the extra text. The issue arises when the extra text shows up below every button instead of just the one clicked.

The Solution

To achieve the desired functionality, you need to ensure that each button has its own individual state. By doing so, you can control the visibility of the extra text based on the state of the specific button that was clicked.

Step-by-Step Implementation

Create a Separate View for Each Row: By encapsulating each button and its functionality into its own SwiftUI view, we can maintain an independent state for each one.

Use @ State to Manage Visibility: In your custom row view, declare a state variable that will control the visibility of the extra text.

Here’s how you can implement it:

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

Utilize the New Row View in Your List: Now that you have a ItemRowView, you can utilize this in your main view as follows:

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

Conclusion

With these simple steps, you have successfully created a toggle feature for buttons in SwiftUI where extra text displays only below the clicked button. This leads to a cleaner and more intuitive user experience, as users won’t be confused seeing additional text tied to buttons they haven’t interacted with.

By managing states on a per row basis, you can ensure that each button operates independently, allowing for dynamic interfaces that enhance interaction.

In summary, remember:

Use separate view structs for list items.

Manage the state with @ State inside each custom view.

Implement the button action to toggle visibility.

Now you can efficiently implement a button toggle in your SwiftUI applications! Happy coding!