Скачать или смотреть Mastering NavigationStack in SwiftUI: Navigate Without NavigationLinks

Discover how to effectively use `NavigationStack` in SwiftUI for button-triggered navigation while performing specific functions before each transition.
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This video is based on the question https://stackoverflow.com/q/73897618/ asked by the user 'Ajay Sharma' ( https://stackoverflow.com/u/12148536/ ) and on the answer https://stackoverflow.com/a/73897806/ provided by the user 'Carsten' ( https://stackoverflow.com/u/1958912/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Mastering NavigationStack in SwiftUI: Navigate Without NavigationLinks

If you're new to SwiftUI and trying to implement navigation in your application, you might find the NavigationStack a little challenging, especially when you want to navigate based on certain actions rather than using the common NavigationLink. In this post, we'll explore how to accomplish this and provide you with clear, organized steps to navigate between views using NavigationStack without relying solely on NavigationLink. Let’s dive into the solution!

The Problem: Navigating Without NavigationLink

You may have encountered a scenario where you want to navigate to a new view following a specific function's execution triggered by a button press. The old approach often relied heavily on NavigationLink, but what if you need more control over your navigation tasks?

Consider the case where you want to navigate from BView to CView after performing a certain action. Achieving this without a NavigationLink directly can be tricky, especially if you're still learning the ins and outs of SwiftUI.

The Solution: Leveraging NavigationStack Effectively

Step 1: Setup Your Navigation Stack

Begin by creating your main view, AView, where the navigation starts. Here's how you can set it up:

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Step 2: Create BView

In your BView, you will also set up navigation. Instead of using a NavigationLink, utilize a @ State variable to control when to show CView. Here’s how you can do that:

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Step 3: Create the Final Destination CView

Finally, create a simple view called CView where you display the content:

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Recap

By setting up a NavigationStack with a state variable managing the navigation triggers, you can create seamless transitions between your views based on button actions without relying solely on NavigationLink. This setup allows you to perform necessary functions before making transitions between your views.

Your SwiftUI code will look as follows after implementing the discussed structure:

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

Conclusion

Navigating in SwiftUI doesn't have to be a hassle. By utilizing NavigationStack along with your custom button actions, you gain enhanced control over your navigation flows. Test this out in your next project, and you'll find it much easier to manage transitions without being bound to NavigationLink. Happy coding!