Скачать или смотреть How to Navigate Between View Controllers in SwiftUI Using a Toolbar Button

Learn how to seamlessly navigate between view controllers in SwiftUI by using a toolbar button. This guide provides a simple and effective solution for beginners.
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This video is based on the question https://stackoverflow.com/q/70238856/ asked by the user 'sultan.h' ( https://stackoverflow.com/u/17342280/ ) and on the answer https://stackoverflow.com/a/70238902/ provided by the user 'jnpdx' ( https://stackoverflow.com/u/560942/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Navigating Between View Controllers in SwiftUI Using a Toolbar

Navigating between different views in an app is a fundamental task in SwiftUI development. If you're a beginner looking to smoothly transition to another view controller when a button in the toolbar is tapped, you've come to the right place. This article will guide you through a straightforward method to achieve this functionality.

The Challenge

Imagine you're building a simple profile page in SwiftUI, and you want to navigate to an OptionsView whenever a settings button is clicked in the toolbar. The standard way of adding new views can often be confusing for new developers, especially when working with tools like SwiftUI that embrace a declarative style of programming. Let's break this down.

Solution Overview

To solve this problem, we will leverage NavigationLink in combination with a hidden view, all activated through the button tap. Here’s a step-by-step guide on how to set up the navigation effectively.

Step-by-Step Instructions

1. Define a State Variable

First, we need to create a state variable that will control the activation of our navigation link.

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This variable will track whether we should navigate to our OptionsView.

2. Set Up the Navigation View

Create a NavigationView and add your main content inside it.

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Complete Code Example

Putting it all together, here’s the complete example of your ContentView:

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Conclusion

By following these steps, you’ll successfully enable navigation between your view controllers using a toolbar button in SwiftUI. The use of the @ State variable and NavigationLink allows for clean, declarative navigation that fits well within the SwiftUI framework.

With this knowledge, you're well on your way to building more complex navigation structures in your applications. Explore more features in SwiftUI and experiment with additional views and states for enhanced functionality!