Скачать с ютуб How to Fix NavigationLink Animation Issues in SwiftUI When Using Async/Await в хорошем качестве

How to Fix NavigationLink Animation Issues in SwiftUI When Using Async/Await

Discover how to ensure smooth animation with `NavigationLink` in SwiftUI, even when performing background tasks using async/await. --- This video is based on the question https://stackoverflow.com/q/72383478/ asked by the user 'Z S' ( https://stackoverflow.com/u/145552/ ) and on the answer https://stackoverflow.com/a/72385113/ 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. 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: SwiftUI: NavigationLink doesn't show animation if setting after background task 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. --- Smooth Navigation in SwiftUI with Async/Await Navigating between views in SwiftUI is a fundamental part of creating intuitive and engaging applications. However, developers may encounter issues with animations when using NavigationLink alongside async/await functionality. If you’ve found that your NavigationLink isn’t animating correctly after a background task, you're not alone! In this guide, we’ll explore the causes of this problem and provide a straightforward solution to ensure a smooth transition between views. The Problem When using NavigationLink in conjunction with a background task, such as fetching data asynchronously, you might notice something odd: the navigation animation doesn’t occur as expected. This issue typically arises when you set the state for navigation while processing data in a background task. For instance, you might set a state variable to show a loading spinner and then transition to another view without a smooth animation. Example Code Context Here’s a simplified version of the scenario that many developers face: [[See Video to Reveal this Text or Code Snippet]] The problematic behavior becomes apparent when you attempt to navigate to a new view after an async data loading task. The Solution The key to resolving this issue lies in the placement of your NavigationLink. To ensure that the animation plays smoothly, you should move the NavigationLink outside of the conditional logic that controls your loading state. By doing this, you ensure that the NavigationLink is always available for use, even when the view is updating states. Revised Code Structure Here’s how you can make this adjustment in your code: [[See Video to Reveal this Text or Code Snippet]] Key Changes Made Position of the NavigationLink: The NavigationLink is now declared outside of the if-else statements. This ensures that the system is always aware of the navigation link's presence, enabling animations to function properly. Empty Text in NavigationLink: To keep the layout intact without showing a label for the link, an empty text view is provided. Conclusion By placing your NavigationLink outside of conditional statements, you can ensure that animations occur smoothly when transitioning between views in SwiftUI, even while processing background tasks. This small adjustment can significantly enhance user experience by providing the expected seamless navigation feature. Happy coding, and may your SwiftUI journeys be fluid and animated!