CODEWITHSUNDEEP
iosswiftswiftui
Mohammad Abulubbad
Mohammad Abulubbad

Reputation: 3

Xcode Compiler error: The compiler is unable to type-check this expression in reasonable time (Xcode 12.0 SwiftUI)

(Xcode 12.0, SwiftUI) This code was working for me for almost 6 months without any problem I just got this error yesterday without any editing. I tried a lot to clean the code and make it shorter but nothing worked for me.

GeometryReader { (geometry: GeometryProxy) in

  ForEach(0..<5) { index in

    Group {

      Circle()
        .foregroundColor(Color("GreyOne"))
        .frame(width: geometry.size.width / 5, height: geometry.size.height / 5)

        .scaleEffect(!self.isAnimating ? 1 - CGFloat(index) / 5 : 0.2 + CGFloat(index) / 5)

        .offset(y: geometry.size.width / 10 - geometry.size.height / 2)

      }.frame(width: geometry.size.width, height: geometry.size.height)

        .rotationEffect(!self.isAnimating ? .degrees(0) : .degrees(360))

        .animation(Animation
            
            .timingCurve(0.5, 0.15 + Double(index) / 5, 0.25, 1, duration: 1.5)

          .repeatForever(autoreverses: false))

    }

}.aspectRatio(1, contentMode: .fit)

    .onAppear {

      self.isAnimating = true

    }

Upvotes: 0

Views: 128

Answers (1)

David Pasztor
David Pasztor

Reputation: 54706

You can move out parts of your View into separate private functions and just call those from body. You had a couple of compiler errors in your code, such as not passing x to the offset function or not converting all Ints to CGFloat. Once you break up the body of your View, the real errors will surface.

Here's the compiling version of your code, using 2 private functions to build parts of the body of your View.

struct YourView: View {
    @State private var isAnimating = false

    var body: some View {
        GeometryReader { geometry in
            ForEach(0..<5) { index in
                Group {
                    circle(geometry: geometry, index: index)
                }
                .frame(width: geometry.size.width, height: geometry.size.height)
                .rotationEffect(!self.isAnimating ? .degrees(0) : .degrees(360))
                .animation(animation(index: index))
            }
        }
        .aspectRatio(1, contentMode: .fit)
        .onAppear {
            self.isAnimating = true
        }
    }

    private func animation(index: Int) -> Animation {
        Animation
            .timingCurve(0.5, 0.15 + Double(index) / 5, 0.25, 1, duration: 1.5)
            .repeatForever(autoreverses: false)
    }

    private func circle(geometry: GeometryProxy, index: Int) -> some View {
        let width = geometry.size.width
        let height = geometry.size.height
        let yOffset = width / 10 - height / 2
        let nonAnimatingScale = 1 - CGFloat(index) / CGFloat(5)
        let animatingScale = 0.2 + CGFloat(index) / CGFloat(5)
        return Circle()
            .foregroundColor(Color("GreyOne"))
            .frame(width: width / 5, height: height / 5)
            .scaleEffect(self.isAnimating ? animatingScale : nonAnimatingScale)
            .offset(x: 0, y: yOffset)
    }
}

Upvotes: 1

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