👀 Views: 78 💬 Answers: 1 📅 Created: 2025-07-07

swiftui animation performance swift

I'm currently working on a SwiftUI application that features a complex animation where multiple views scale and translate based on user interaction. While testing on an iPhone 14, I've noticed significant frame drops and stuttering during the animations when using the `withAnimation()` block, especially when I have more than three views animating simultaneously. I've tried using `Animation.linear` and `Animation.easeInOut`, but the performance issues persist. Here’s a simplified version of my animation code: ```swift struct AnimatedView: View { @State private var scale: CGFloat = 1.0 @State private var offset: CGSize = .zero var body: some View { VStack { ForEach(0..<5) { index in Circle() .frame(width: 100 * scale, height: 100 * scale) .offset(offset) .animation(.easeInOut(duration: 0.5), value: scale) } Button("Animate") { scale = scale == 1.0 ? 1.5 : 1.0 offset = offset == .zero ? CGSize(width: 50, height: 50) : .zero } } } } ``` In addition, I’ve also tried wrapping the animation call in a `DispatchQueue.main.async` block, but that didn’t seem to help either. I've checked the device's performance settings and ensured that the app is running in high performance mode. Can anyone suggest best practices or techniques to optimize these animations for smoother performance? I’m using Xcode 14.0 and targeting iOS 16.0. This issue appeared after updating to Swift latest. I appreciate any insights!