Скачать или смотреть Fixing the React-Native Reanimated Translate Transition on React-Native-SVG Groups

Discover how to solve the React-Native Reanimated transition issue for SVG elements in this comprehensive guide. Learn the simple fix that gets your animations working perfectly!
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This video is based on the question https://stackoverflow.com/q/68453105/ asked by the user 'Anthony Cregan' ( https://stackoverflow.com/u/3626334/ ) and on the answer https://stackoverflow.com/a/68458457/ provided by the user 'Anthony Cregan' ( https://stackoverflow.com/u/3626334/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Fixing the React-Native Reanimated Translate Transition on React-Native-SVG Groups

In the world of mobile app development, animations play a crucial role in enhancing user experience. However, when using libraries like react-native-reanimated in conjunction with react-native-svg, you might encounter issues, particularly with transitions. One common problem developers face is making a group of SVG elements animate correctly. In this guide, we will dive into a specific issue where the translateY transition does not trigger as expected while offering a straightforward solution to fix it.

The Problem

Imagine you are trying to create an animation where a group of SVG elements rises from off the screen into the viewport. Here’s the overview of the problem you might encounter:

Beginning State: SVG elements start off the screen, at translateY: -900.

Desired Transition: The elements should smoothly drop into view, transitioning to translateY: 0.

Issue: Despite using the withTiming function of react-native-reanimated to animate this transition, you see no animation occurring.

An example implementation that leads to this confusion could look something like this:

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

Here, the intention seems correct. Yet the outcome is no visible transition, leaving developers puzzled about what went wrong.

The Solution: Using y instead of translateY

As it turns out, the solution is simple and easy to overlook. Instead of applying the animation to the translateY property, you should apply it directly to the y property of the SVG. Here's how you can implement the solution:

Step-by-Step Implementation

Change the Animated Property: Modify the property being animated from translateY to y.

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

Keep the Animation Logic: Retain the rest of your code logic as it is, including the use of useEffect to trigger the animation when the component mounts.

Complete Code Example: Here’s your updated Curtains component with the necessary adjustment:

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

Conclusion

Animating SVG elements in a React Native environment can be tricky, especially when coordinating with libraries like react-native-reanimated. However, by making a small adjustment to animate the y property instead of translateY, you can achieve the desired transition effect seamlessly.

If you're facing similar issues, give this solution a try, and you may find that the most effective fixes can sometimes be the simplest ones. Happy coding, and may your animations be smooth and engaging!