What tools have you used for creating and editing animations in your projects?

In iOS projects, the following tools and frameworks are often used for creating and editing animations:

• Core Animation — a low-level framework for creating smooth interface animations.
• UIView.animate — a convenient way to animate changes to UIView properties.
• Lottie — a library for playing animations created in Adobe After Effects and exported in JSON format.
• SpriteKit — for creating 2D animations and games.
• CAKeyframeAnimation — for keyframe animations.

Example of a simple animation changing the transparency of a UIView:

UIView.animate(withDuration: 0.5) {
    myView.alpha = 0.0
}

For complex animations, Lottie is often used, allowing the import of ready-made animations from design tools.