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swiftuibar-chartgeometryreaderviewbuilder

Custom Rating view with nested H and VStacks leads to weird frame


I'm trying to clone this view:

enter image description here

Unfortunately I have a problem with the Geometry Reader (I guess). It's making a bigger frame then the actual rectangle (see blue area):

enter image description here

Same applies to the stars as well:

enter image description here

Can you point me to my issue? Is something nested wrong? I also tried to include Spacer()but this didn't resolve it.

My Code looks like this:

import SwiftUI

struct Ratings: Identifiable {
    var id = UUID().uuidString
    var ratingCount: CGFloat
    var starCount: Int
}

var userRatings: [Ratings] = [

    Ratings(ratingCount: 130, starCount: 5),
    Ratings(ratingCount: 90, starCount: 4),
    Ratings(ratingCount: 25, starCount: 3),
    Ratings(ratingCount: 20, starCount: 2),
    Ratings(ratingCount: 3, starCount: 1)

]


struct RatingGraphView: View {
      
    var ratings: [Ratings] = [
        Ratings(ratingCount: 130, starCount: 5),
        Ratings(ratingCount: 90, starCount: 4),
        Ratings(ratingCount: 25, starCount: 3),
        Ratings(ratingCount: 20, starCount: 2),
        Ratings(ratingCount: 3, starCount: 1)
    ]
    
    var body: some View {
        
        VStack(spacing: 10){
            
            ForEach(ratings){rating in
                RatingView(rating: rating)
                
            }
        }
        .frame(height: 200)
    }
    
    @ViewBuilder
    func RatingView(rating: Ratings)->some View{
        HStack{
            HStack{
                ForEach(1..<rating.starCount+1){ star in
                    Image(systemName: "star")
                        .resizable()
                        .aspectRatio(contentMode:.fit)
                        .frame(height:15)
                        .scaledToFit()
                        .padding(.bottom)
                }
            }
            .frame(maxWidth:.infinity, alignment: .trailing)
            
            
            HStack{
                
                VStack{
                    
                    GeometryReader{proxy in
                        
                        let size = proxy.size
                        
                        RoundedRectangle(cornerRadius: 6)
                            .fill(Color.blue)
                            .frame(width: (rating.ratingCount / getMax()) * (size.width), height: 15)
                        
                    }
                    
                }
                
            }
            
        }
        .padding(.trailing)
    }
    
    func getMax()->CGFloat{
        let max = ratings.max { first, second in
            return second.ratingCount > first.ratingCount
        }
        
        return max?.ratingCount ?? 0
    }
}

struct RatingGraphView_Previews: PreviewProvider {
    static var previews: some View {
        RatingGraphView()
    }
}

Many Thanks!


Solution

  • test this

    struct RatingGraphView: View {
      
        var ratings: [Ratings] = [
            Ratings(ratingCount: 130, starCount: 5),
            Ratings(ratingCount: 90, starCount: 4),
            Ratings(ratingCount: 25, starCount: 3),
            Ratings(ratingCount: 20, starCount: 2),
            Ratings(ratingCount: 3, starCount: 1)
        ]
        
        var body: some View {
            
            VStack(spacing: 0){
                
                ForEach(ratings){rating in
                    RatingView(rating: rating)
                    
                }
            }
            .frame(height: 100)
        }
        
        @ViewBuilder
        func RatingView(rating: Ratings)->some View{
            GeometryReader{proxy in
                HStack {
                    HStack{
                        Spacer()
                        ForEach(1..<rating.starCount+1){ star in
                            Image(systemName: "star")
                            .resizable()
                            .aspectRatio(contentMode:.fit)
                            .frame(height:15)
                            .scaledToFit()
                            //.padding(.bottom)
                        }
                    }
                    .frame(width:proxy.size.width/2.5)
                let size = proxy.size
                            
                RoundedRectangle(cornerRadius: 6)
                    .fill(Color.blue)
                    .frame(width: (rating.ratingCount / getMax()) * (proxy.size.width * 1.5/3), height: 15)
                    
                }
                
            }
            
        }
        
        func getMax()->CGFloat{
            let max = ratings.max { first, second in
                return second.ratingCount > first.ratingCount
            }
            
            return max?.ratingCount ?? 0
        }
    }