Скачать или смотреть How to Remove Black Background of UINavigationController for a Better User Experience

Discover how to effortlessly eliminate the black background from UINavigationController to enhance your app's interface and user experience.
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This video is based on the question https://stackoverflow.com/q/69500177/ asked by the user 'SeanT' ( https://stackoverflow.com/u/1026755/ ) and on the answer https://stackoverflow.com/a/69783418/ provided by the user 'SeanT' ( https://stackoverflow.com/u/1026755/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Remove Black Background of UINavigationController for a Better User Experience

When developing iOS applications, it's essential to maintain a visually appealing interface that enhances the user experience. A common issue arises when using a UINavigationController, especially when it is presented modally over another view. You might encounter a distracting black background behind your view when trying to implement a swipe-to-dismiss gesture on the root view controller. If you've faced this challenge, fear not—there's a simple solution!

The Problem Defined

In situations where a UINavigationController is presented modally, users may find that a black background appears as they swipe, which can be jarring and take away from the seamless user experience you want to create. This issue can be particularly troubling when the underlying content is meant to be visible. So, how can you allow that view to show through instead of the black background?

The Solution

Fortunately, solving this problem is quite straightforward. By adjusting the modalPresentationStyle property of your UINavigationController, you can control how it behaves when presented modally. Here are the steps to implement this change:

Step-by-Step Solution

Locate Your UINavigationController Code: First, find the section in your code where the UINavigationController is being initialized and presented.

Change the Modal Presentation Style:

You might initially have a line that looks like this:

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

To remove the black background, simply change this line to:

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

Explanation of the Change

Full Screen: The fullScreen presentation style presents the view controller that covers the entire screen and usually applies a black background behind it.

Over Current Context: The overCurrentContext presentation style allows the modal view controller to be displayed over the existing content, ensuring that any underlying views remain visible and do not show an unwanted black backdrop.

Conclusion

Making this minor adjustment in your code can significantly enhance the user experience of your iOS application by creating a more visually appealing transition. Once you set the modal presentation style to overCurrentContext, users will be able to see the content beneath the modal view as they swipe to dismiss, making for a smoother interaction overall.

By following these simple steps, you can eliminate that pesky black background and enhance the flow of your app. Happy coding!