Book Image

UI Animations with Lottie and After Effects

By : Mireia Alegre Ruiz, Emilio Rodriguez Martinez
Book Image

UI Animations with Lottie and After Effects

By: Mireia Alegre Ruiz, Emilio Rodriguez Martinez

Overview of this book

Lottie is a small and scalable JSON-based animation file. LottieFiles is the platform where Lottie animations can be uploaded, tested, and shared. By combining the LottieFiles plugin and the LottieFiles platform, you’ll be able to create stunning animations that are easy to integrate in any device. You’ll also see how to use the Bodymovin plugin in After Effects to export your animation to a JSON file. The book starts by giving you an overview of Lottie and LottieFiles. As you keep reading, you’ll understand the entire Lottie ecosystem and get hands-on with classic 2D animation principles. You’ll also get a step-by-step guided tour to ideate, sketch for storytelling, design an icon that will fulfill the needs and expectations of users based on UX, and finally animate it in Adobe After Effects. This will help you get familiar with the After Effects environment, work with vector shape layers, create and modify keyframes using layer properties, explore path and mask features, and adjust timing easily to create professional-looking animations. By the end of this animation book, you’ll be able to create and export your own Lottie animations using After Effects and implement them in mobile apps using React Native. You’ll also have an understanding of 2D animation best practices and principles that you can apply in your own projects.
Table of Contents (16 chapters)
1
Part 1 - Building a Foundation With After Effects and LottieFiles
5
Part 2 - Cracking Lottie Animations
9
Part 3 - Adding Your Lottie Animations Into Mobile Apps

Chapter 11: Any Questions? lottie-react-native FAQs

Even with all the information contained in this book, some questions may arise when using Lottie-based animations in our React Native apps. In this chapter, we will go over some of the most commonly asked questions by developers when it comes to lottie-react-native usage. For convenience, the following is the list of questions and issues you will find in the following pages:

  1. I added an effect in my animation, but it's not rendered in the app.
  2. The animation is not rendered at all in my app.
  3. The animation looks stretched.
  4. How can I pause an animation?
  5. How can I reverse an animation?
  6. My animation is rendered on an iOS device but not on an Android device.
  7. My animation is rendered on an Android device but not on an iOS device.
  8. My app is not building after installing lottie-react-native.
  9. Some frames are not showing in my animation.
  10. My animation is showing the wrong colors or no colors at...