Скачать или смотреть How to Fix the Immediate Dismissal of Views in SwiftUI Navigation on iOS 15

Discover how to resolve the `immediate dismissal` issue of views in SwiftUI navigation for iOS 15. Learn the correct approach to navigation links and state management to ensure a seamless user experience.
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This video is based on the question https://stackoverflow.com/q/71197456/ asked by the user 'Jake Smith' ( https://stackoverflow.com/u/16636751/ ) and on the answer https://stackoverflow.com/a/71198560/ provided by the user 'ChrisR' ( https://stackoverflow.com/u/17896776/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding the Problem: Immediate Dismissal of Views in SwiftUI

If you're working with SwiftUI and navigating between views in your iOS app, you may have encountered a frustrating issue where certain views are dismissed immediately after they are presented. This is particularly problematic in scenarios where users need to interact with various editing menus, such as updating their email address, phone number, or other personal information.

In this case, the user is unable to edit any information because the navigation views are dismissed as soon as they are accessed. Let’s break down the issue and explore a solution.

Problem Breakdown

Issue Description

In the provided SwiftUI navigation setup, we have the following navigation structure:

Parent View: ProfileView

Child A: Settings

Child B: AccountTab

Child C Views: EditEmail, EditPhone, EditGender

When trying to navigate from Child B (Account Tab) to Child C views (Edit Email, Phone, or Gender), these views get immediately dismissed.

Possible Reasons

Improper Use of Navigation Links: The immediate dismissal often occurs due to the way Navigation Links and state variables are set up within the views.

Excessive Gesture Handling: Using .onTapGesture combined with background navigation links can lead to navigation issues where the state toggles are conflicting.

Solution Steps

Let’s take a look at how to effectively set up the navigation without running into these immediate dismissal problems.

1. Simplifying Navigation Links

Instead of using the .onTapGesture method combined with background navigation links, we should utilize direct NavigationLink components. This approach is not only cleaner but also avoids potential state conflicts.

Updated ProfileView

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2. Adjusting Child Views

Similarly, modify the Settings and AccountTab views by using direct NavigationLink instances instead of managing state with booleans.

Updated Settings

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

Updated AccountTab

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

3. Why This Works

Direct Navigation Links: Using NavigationLink directly adds inherent navigation behaviors and reduces the chances of state conflicts that could lead to dismissals.

Clean State Management: By not relying on @ State variables for toggling navigation states, we create a more predictable and manageable flow for users.

Conclusion

By simplifying your SwiftUI navigation setup and removing unnecessary complexity, you can eliminate issues like the immediate dismissal of views. This not only enhances the user experience but also allows smoother transitions between different sections of your app.

If you ever find yourself facing similar issues, consider revisiting your navigation strategies and ensure you’re leveraging SwiftUI’s strengths for clean, state-driven interfaces.

Now, go ahead and update your navigation code to ensure users can seamlessly navigate through their account settings without interruptions!