Gain insights into creating beautiful, performant animations in Angular. Delve into CSS transitions, Web Animations API, and Angular animations, while exploring performance and debugging techniques.

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Animations play a crucial role in an application’s user experience (UX). A set of well-designed animations can make an application feel fast, polished, and professional. However, creating animations can be a daunting task that involves knowing what is available and how to choose the right approach for each task.

You will start with the easiest methods and move on to more advanced animation methods as you make your way through this course. You’ll start with general animation techniques, covering CSS transitions, animations, and the Web Animations API, followed by Angular animations and integrating external animation libraries. Lastly, you’ll finish with a deep dive into animation performance and debugging.

This course will provide you with information and advice to help you create beautiful and performant animations in Angular applications. By the end of the course, you will be able to create performant animations and choose the right tools to create them effectively.

Animations in Angular

# Hardware acceleration

There are sometimes subtle glitches that happen when running certain types of animations. A glitch usually presents itself as a slight shift in the position of elements within an animation. This happens because of the difference in how CPU and GPU render things.

A solution to this problem is using the `will-change` property when creating our CSS transitions. This property tells the browser which of the element’s properties will be animated, which in turn causes the browser to better optimize the animation. On a second level, the browser will let the GPU handle the animation instead of both the CPU and GPU.

> **Note:** Running the rendering process on the GPU also has its downsides. It will consume more video resources, which could be limited depending on the device.

The code snippet below animates the opacity of an element with the class `box`. Opacity animation is very efficient and, because we’re only animating a single element on an empty page, the difference between adding the `will-change` property will be negligible. The same concept applies to more complicated animations. However, to keep the example simple, we’ll use the opacity transition.

Since we know that we will be modifying the opacity via a CSS transition, we can pass in `opacity` to the `will-change` property (**line 6**). This tells the browser to prepare the element for a change in its opacity so it can better optimize the animation.


Tips and tricks for optimizing our CSS transitions and designing our animations for accessibility.

Before We Start

CSS Transitions

CSS Animations

Web Animations API (WAAPI)

Angular Animations

Third-party Animation Libraries

Appendix

Conclusion

Tips And Tricks

Hardware acceleration