![]() ![]() ![]() When an event, like a tap, comes in, an update transaction is opened. SwiftUI tracks a view's dependencies, like this selected state variable. For this exercise, I'm gonna focus on the pet avatar view in isolation. This is already working pretty well, but it would be way better with an animation.īefore adding that, I'm gonna trace through how SwiftUI refreshes the rendering of a view to give you a better understanding of the anatomy of a view update. And I can tap again to scale it back down. On tap, the avatar of my choice will scale up in order to nudge people towards voting for the proper pet. The stakes are too high to leave this next poll purely to chance, so I'm adding a new feature. In the last poll, as is proper, cats came in first place, but only narrowly. When you tap, the vote count changes, and the avatars slide around to reflect the current standings. There's a button to cast a vote for each pet. We were curious if we could come to a consensus, so we made an app to take a poll. In recent years, there's been debate among my colleagues about who makes the best furry- or not so furry-companion. I'll cover how SwiftUI refreshes the rendering of a view, determines what to animate using Animatable, interpolates values over time using Animation, and propagates context for the current update using Transaction. This session is an overview of SwiftUI's powerful animation capabilities and how they work together to produce impressive visual effects. ![]() It's a big reason why SwiftUI is shaped the way that it is. Making it simple to add animation to your app was one of our core motivations when we began developing SwiftUI. When tastefully applied, it can bring both clarity and life to your UI. Animation is a key component of modern app design. ♪ ♪ Kyle: Hi, I'm Kyle a member of the SwiftUI team. ![]()
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