See this video: https://www.youtube.com/watch?v=sxtwemW6im0

CurvesAndShape.swift

import SwiftUI

struct CurvesAndShape: View {
    var body: some View {
        Home()
    }
}

struct CurvesAndShape_Previews: PreviewProvider {
    static var previews: some View {
        CurvesAndShape()
    }
}


struct Home: View {
    
    @State var color = 0
    
    var body: some View {
        
        VStack {
            ZStack(alignment: .top) {
                VStack {
                    Image(systemName: "")
//                        .resizable()
                        .frame(height: 200)
                    
                    HStack(spacing: 20) {
                        Button (action: {
                            self.color = 0
                        }) {
                            VStack(spacing: 8) {

                                ZStack {
                                    Circle()
                                        .fill(Color.yellow)
                                        .frame(width: 20, height: 20)

                                    Circle()
                                        .stroke(self.color == 0 ? Color.white : Color.clear, lineWidth: 2)
                                        .frame(width: 30, height: 30)


                                }
                                Text("Yellow")

                            }
                        }


                        Button (action: {
                            self.color = 1
                        }) {
                            VStack(spacing: 8) {

                                ZStack {
                                    Circle()
                                        .fill(Color.orange)
                                        .frame(width: 20, height: 20)

                                    Circle()
                                        .stroke(self.color == 1 ? Color.white : Color.clear, lineWidth: 2)
                                        .frame(width: 30, height: 30)


                                }
                                Text("Orange")

                            }
                        }

                    }
                    .padding(.top, 15)
                    .padding(.bottom, 10)
                }

                HStack {
                    Button (action: {}) {
                   Image(systemName: "return")
                            .renderingMode(.original)
                            .padding()
                    }
                    .padding(.leading, 10)
                    .padding(.top, 20)

                    Spacer()

                    Button (action: {}) {
                        Image(systemName :"cart")
                            .renderingMode(.original)
                            .padding()
                    }
                    .padding(.horizontal, 10)
                    .padding(.vertical, 20)
                    .background(Color.white)
                    .clipShape(CustomShape(corner: .bottomLeft, radii: 35))

                }
            }
            .background(self.color == 0 ? Color.yellow : Color.orange)
            .clipShape(CustomShape(corner: .bottomLeft, radii: 55))
            
            HStack {
                Text("Melody lamp")
                    .font(.title)
                    .fontWeight(.bold)

                Spacer()

                Button (action: {}) {

                    Image(systemName: "heart")
                        .renderingMode(.original)
                        .padding()
                }
                .background(self.color == 0 ? Color.yellow : Color.orange)
                .clipShape(Circle())
                .padding(.horizontal, 35)
                .padding(.top)

            }
            .padding(.horizontal)

            Text("Proin eget cursus augue. Quisque fermentum, lectus nec efficitur lobortis, lectus nisl consectetur enim, a hendrerit neque diam a felis. Vivamus nec vehicula est. Maecenas lacinia pellentesque nunc bibendum efficitur. Curabitur nec varius sem, et molestie magna. Duis rutrum urna quis ultricies bibendum. Donec vestibulum augue eu leo rhoncus, quis aliquet dolor vehicula. Vivamus vehicula tempus elit, vel auctor odio rhoncus in. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.")
                .multilineTextAlignment(.leading)
                .foregroundColor(.gray)
                .padding(.horizontal, 30)
                .padding(.top, 20)
            
            
            HStack (spacing: 5) {
                Button (action: {}) {
                    VStack {
                        

                        Text("22 W")
                            .fontWeight(.bold)
                            .foregroundColor(.black)
                    }
                    .padding()
                }
                .background(Color.black.opacity(0.06))
                .cornerRadius(22)

                Button (action: {}) {
                    VStack {

                        Text("1.2 M")
                            .fontWeight(.bold)
                            .foregroundColor(.black)
                    }
                    .padding()
                }
                .background(Color.black.opacity(0.06))
                .cornerRadius(22)

                Button (action: {}) {
                    VStack {

                        Text("22 CM")
                            .fontWeight(.bold)
                            .foregroundColor(.black)
                    }
                    .padding()
                }
                .background(Color.black.opacity(0.06))
                .cornerRadius(22)

                Button (action: {}) {
                    VStack {
                        Text("2 KG")
                            .fontWeight(.bold)
                            .foregroundColor(.black)
                    }
                    .padding()
                }
                .background(Color.black.opacity(0.06))
                .cornerRadius(22)

            }
            .padding(.top, 20)
            .padding(.bottom, 10)
            .padding(.horizontal, 3)
            
            
            Spacer(minLength: 0)

            HStack {
                Text("$12.45")
                    .foregroundColor(.black)
                    .font(.title)
                    .fontWeight(.bold)
                    .padding(.leading, 35)
                    .padding(.bottom, 20)

                Spacer()

                Button (action: {}) {
                    Text("Add To Cart")
                        .foregroundColor(.black)
                        .padding(.vertical, 20)
                        .padding(.horizontal, 35)
                }
                .background(self.color == 0 ? Color.yellow : Color.orange)
                .clipShape(CustomShape(corner: .topLeft, radii: 55))


            }
        }
        .edgesIgnoringSafeArea(.all)
        .statusBar(hidden: true)
        .animation(.default)
    }
}



struct CustomShape: Shape {
    
    var corner: UIRectCorner
    var radii: CGFloat
    
    func path(in rect: CGRect) -> Path {
        let path = UIBezierPath(roundedRect: rect, byRoundingCorners: corner, cornerRadii: CGSize(width: radii, height: radii))
        return Path(path.cgPath)
    }
}